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400

volt R

REC

= 420139

P

motor

Ω

200

volt R

REC

= 105035

P

motor

Ω

NB!
The brake resistance selected should
have an ohmic value no more than 10%
lower than that recommended by Dan-
foss.  If a lower brake resistance is selec-
ted there is a risk of overcurrent, which
can destroy the unit.

Calculation of braking power

When calculating the braking power, it must be ensur-
ed that the mean and peak powers can be dissipated
to the brake resistor. The mean power is determined
by the period time of the process, i.e. for how long the
brake is applied in relation to the period time of the
process. The peak power is determined by the braking
torque, which means that during braking the brake re-
sistor must be able to dissipate the energy input. The
figure shows the relation between mean power and
peak power.

Calculation of peak power of brake resistor

P

PEAK, MEC

 is the peak power at which the motor brakes

on the motor shaft. It is calculated as follows:

P

PEAK, MEC

=

P

MOTOR

×

M

BR ( % )

100

W

P

peak

 is the term describing the braking power that is

applied to the brake resistor when the motor applies
the brakes. P

PEAK

 is smaller than P

PEAK, MEC

, as the

power is reduced by the efficiency of the motor and the
frequency converter. The peak effect is calculated as
follows:

P

PEAK

=

P

MOTOR

×

M

BR ( % )

×

η

INV

×

η

MOTOR

100

W

If you select Danfoss' recommended braking resistor
(R

REC

), you are certain that the braking resistance can

generate a braking torque of 160% on the motor shaft.

Calculation of mean power on brake resistor

The mean power is determined by the period of the
process, i.e. how long you brake in relation to the pe-
riod of the process.
Duty-cycle for braking is calculated as follows:

Duty

−

cycle

=

T

b

× 100

T

p

%

T

p

 = The process time in seconds.

T

 b

 = The braking time in seconds.

Danfoss sells brake resistors with variable duty-cycles
up to 40%. For example, with a 10% duty-cycle, brake
resistors can take up P

peak

 in 10% of the process pe-

riod. The remaining 90% of the period time is spent on
redirecting surplus heat.
The mean power at 10% duty cycle can be calculated
as follows:

P

avg

=

P

peak

× 10 %

W

The mean power at 40% duty cycle can be calculated
as follows:

P

avg

=

P

peak

× 40 %

W

These calculations apply to intermittent braking with
period times of up to 120 seconds.

NB!
Period times longer than 120 sec. may
lead to overheating of the resistor.

24 

 MG.27.E2.02 - VLT is a registered Danfoss trademark

Содержание VLT 2800

Страница 1: ...ral information about electrical installation 42 EMC correct electrical installation 43 Earthing of screened armoured control cables 45 Diagram 46 Electrical installation 47 Safety clamp 49 Pre fuses 49 Mains connection 49 Motor connection 49 RFI switch 50 Direction of motor rotation 50 Parallel connection of motors 50 Motor cables 51 Motor thermal protection 51 Brake connection 51 Earth connectio...

Страница 2: ...nication 122 Technical functions 130 All about VLT 2800 134 Special conditions 134 Galvanic Isolation PELV 134 Earth leakage current and RCD relays 134 Extreme operating conditions 134 dU dt on motor 135 Switching on the input 135 Acoustic noise 135 Temperature dependent switch frequency 136 Derating for air pressure 136 Derating for running at low speed 136 Derating for long motor cables 136 Dera...

Страница 3: ... and Alarmwords 147 General technical data 148 Technical data mains supply 1 x 220 240 V 3 x 200 240V 153 Technical data mains supply 3 x 380 480 V 154 Available literature 155 Supplied with the unit 155 Index 163 MG 27 E2 02 VLT is a registered Danfoss trademark 3 ...

Страница 4: ...equency converters with software version 2 9x The software version number can be seen from parameter 640 NB This symbol indicates something that should be noted by the reader Indicates a general warning This symbol indicates a warning of high voltage 4 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 5: ...rdance with NEC 6 Do not remove the plugs for the motor and mains supply while the frequency converter is connected to mains Check that the mains supply has been disconnected and that the prescribed time has passed before removing motor and mains plugs 7 Note that the frequency converter has more voltage inputs than L1 L2 and L3 when the DC bus terminals are used Check that all voltage inputs are ...

Страница 6: ...ants The frequency converter has an inverter control sys tem called VVC Voltage Vector Control VVC con trols an induction motor by energizing with a variable frequency and a voltage suitable for it If the motor load changes so do its energizing and speed That is why the motor current is measured on an ongoing basis and a motor model is used to calculate the actual volt age requirement and slip of ...

Страница 7: ...ctronic motor protection The frequency converter calculates the motor temper ature on the basis of current frequency and time As opposed to traditional bimetallic protection elec tronic protection takes account of reduced cooling at low frequencies because of reduced fan speed mo tors with internal fan This function cannot protect the individual motors when motors are connected in par allel Therma...

Страница 8: ...he 50 1000 Volt AC and the 75 1500 Volt DC voltage ranges Danfoss CE labels in accordance with the di rective and issues a declaration of conformity upon request The EMC directive 89 336 EEC EMC is short for electromagnetic compatibility The presence of electromagnetic compatibility means that the mutual interference between different compo nents appliances is so small that the functioning of the ...

Страница 9: ...200 240 V three phase AC voltage 3 x 380 480 V three phase AC voltage 1 x 220 240 Volt mains voltage Typical shaft output PINV Max constant output current IINV Max constant output power at 230 V SINV Type kW HP A kVA 2803 0 37 0 5 2 2 0 9 2805 0 55 0 75 3 2 1 3 2807 0 75 1 0 4 2 1 7 2811 1 1 1 5 6 0 2 4 2815 1 5 2 0 6 8 2 7 2822 2 2 3 0 9 6 3 8 2840 3 7 5 0 16 6 4 3 x 200 240 Volt mains voltage Ty...

Страница 10: ...tegral brake module See also the section entitled Brake resistors for ordering a Brake resistor RFI filter VLT 2800 is available with or without an integral 1A RFI filter The integral 1A RFI filter complies with EMC standards EN 55011 1A With an integral RFI filter there is compliance with EN 55011 1B with a max 15 metre screened armoured motor cable on VLT 2803 2815 1 x 220 240 Volt VLT 2880 82 w...

Страница 11: ...lance SYSTEM which will allow detailed process data to be transferred via serial communica tion The protocol standard is based on an RS 485 bus SYSTEM with a maximum transmission speed of 9600 baud The following Drive profiles are supported as standard FC Drive which is a profile adapted to Dan foss Profidrive which supports the profidrive pro file See Serial communication for further details of t...

Страница 12: ...can only be fitted to a VLT 2800 with integral 1A filter R1 op tion See also the section EMC Emission Technical data for VLT 2803 2875 Motor coils Max cable length unscreened unarmoured 1 200 m Max cable length screened armoured 1 100 m Enclosure IP 20 Max rated current 1 16 A Max voltage1 480 V AC Min distance between VLT and motor coil Side by side Min distance above and below motor coil 100 mm ...

Страница 13: ...norm EN 55011 1B NB To comply with EN 55011 1B the RFI 1B filter module must be fitted together with a VLT 2800 with integral 1A RFI filter Technical data for VLT 2803 2875 RFI 1B filter Max cable length screened armoured 200 240 V 100 m At 1A 100 m Max cable length screened armoured 380 480 V 25 m At 1A 50 m Enclosure IP 20 Max rated current 16 A Max Voltage 480 V AC Max voltage to earth 300 V AC...

Страница 14: ... coils This problem can be solved completely by fitting the filter inside a cabinet or equiv alent Danfoss can supply an LC filter for the VLT series 2800 which muffles the acoustic motor noise Before the filters are put into use you must ensure that rated current is observed mains voltage is 200 480 V parameter 412 Variable switching frequency is set to LC filter attached 3 output frequency is ma...

Страница 15: ...80 V 25 m At 1A 50 m Enclosure IP 20 Max rated current 4 0 Order no 195N3100 9 1 Order no 195N3101 Max voltage 480 V AC Max voltage to earth 300 V AC Min distance between VLT and RFI 1B LC filter Side by Side Min distance above and below RFI 1B LC filter 100 mm Dimensions 195N3100 4 0 A H x W x D mm 200 x 75 x 168 Dimensions 195N3101 9 1 A H x W x D mm 267 5 x 90 x 168 Weight 195N3100 4 0 A 2 4 kg...

Страница 16: ...034 R1 ST 195N0035 R1 SB 195N0036 1 1 kW VLT 2811 1 x 220 240 V 3 x 200 240 V RFI Unit Profibus DP1 3 MBits s DeviceNet Ordering no ST 195N0037 SB 195N0038 R1 ST 195N0039 R1 SB 195N0040 ST 195N0041 SB 195N0042 R1 ST 195N0043 R1 SB 195N0044 ST 195N0045 SB 195N0046 R1 ST 195N0047 R1 SB 195N0048 1 5 kW VLT 2815 1 x 220 240 V 3 x 200 240 V RFI Unit Profibus DP1 3 MBits s DeviceNet Ordering no ST 195N0...

Страница 17: ...75 R1 SB 195N0076 ST 195N0077 SB 195N0078 R1 ST 195N0079 R1 SB 195N0080 ST 195N0081 SB 195N0082 R1 ST 195N0083 R1 SB 195N0084 ST Standard unit SB Standard unit with integral brake R1 With RFI filter that complies with EN 55011 1A NB For VLT 2803 2815 with an R1 filter it is only possible to connect single phase mains voltage 1 x 220 240 Volt 1 Also available in 12 MBit s version MG 27 E2 02 VLT is...

Страница 18: ...B 195N1042 R1 ST 195N1043 R1 SB 195N1044 ST 195N1045 SB 195N1046 R1 ST 195N1047 R1 SB 195N1048 2 2 kW VLT 2822 3 x 380 480 V RFI Unit Profibus DP1 3 MBit s DeviceNet Ordering no ST 195N1049 SB 195N1050 R1 ST 195N1051 R1 SB 195N1052 ST 195N1053 SB 195N1054 R1 ST 195N1055 R1 SB 195N1056 ST 195N1057 SB 195N1058 R1 ST 195N1059 R1 SB 195N1060 3 0 kW VLT 2830 3 x 380 480 V RFI Unit Profibus DP1 3 MBit s...

Страница 19: ...FI Unit Profibus DP1 3 MBit s DeviceNet Ordering no ST 195N1121 SB 195N1122 R3 ST 195N1123 R3 SB 195N1124 ST 195N1125 SB 195N1126 R3 ST 195N1127 R3 SB 195N1128 ST 195N1129 SB 195N1130 R3 ST 195N1131 R3 SB 195N1132 18 5 kW VLT 2882 3 x 380 480 V RFI Unit Profibus DP1 3 MBit s DeviceNet Ordering no ST 195N1133 SB 195N1134 R3 ST 195N1135 R3 SB 195N1136 ST 195N1137 SB 195N1138 R3 ST 195N1139 R3 SB 195...

Страница 20: ...20 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 21: ... in a frequency converter via the Profibus network This will eliminate the need for an extra communication network The MCT 10 Set up Software Modules The following modules are included in the software package MCT 10 Set up Software Setting parameters Copy to and from frequency converters Documentation and print out of parameter set tings incl diagrams SyncPos Creating SyncPos programme Ordering nu...

Страница 22: ...0 V 195N1902 IP 21 top cover VLT 2803 2815 200 240 V VLT 2805 2815 380 480 V 195N2179 IP 21 top cover VLT 2822 200 240 V VLT 2822 2840 380 480 V 195N2180 IP 21 top cover VLT 2840 200 240 V VLT 2822 PD2 VLT 2855 2875 380 480 V 195N2181 IP 21 top cover VLT 2880 2882 380 480 V VLT 2840 PD2 195N2182 LCP 2 control unit LCP 2 for programming the frequency converter 175N0131 Cable for LCP 2 control unit ...

Страница 23: ...tion NB The AC brake cannot be used if the re quired braking torque is more than 50 of rated braking torque In such instances a brake resistor must be used Brake Setup The figure shows a brake Setup with a frequency con verter In the following paragraphs expressions and acro nyms are used about brake Setups that can be seen from the figure Calculation of brake resistance The following example and ...

Страница 24: ...es the brakes PPEAK is smaller than PPEAK MEC as the power is reduced by the efficiency of the motor and the frequency converter The peak effect is calculated as follows PPEAK PMOTOR MBR ηINV ηMOTOR 100 W If you select Danfoss recommended braking resistor RREC you are certain that the braking resistance can generate a braking torque of 160 on the motor shaft Calculation of mean power on brake resi...

Страница 25: ... possible to adjust the size of the generator torque that can be applied to the motor without the in termediate circuit voltage exceeding the warning level The braking torque depends on the speed With the AC brake function enabled and parameter 144 1 3 factory setting it is possible to brake with about 50 of rated torque below 2 3 of rated speed and with about 25 at rated speed The function is not...

Страница 26: ...that cuts off the frequency converter if the brake current becomes too high Flat pack resistors are self protecting Calculate the brake current setting of the thermal relay as follows Itherm relay Pavg Rbrakeresistor Rbris the current brake resistor value calculated in the section on Calculation of brake resistance The figure shows an installation with a thermal relay The brake current setting of ...

Страница 27: ...1 5 1902 1 5 2811 200 V 120 1 1 99 110 0 45 2 0 1975 1 5 2815 200 V 120 1 5 74 82 0 85 3 2 1903 1 5 2822 200 V 120 2 2 50 56 1 00 4 2 1904 1 5 2840 200 V 120 3 7 22 25 3 00 11 0 1925 1 5 2805 400 V 120 0 55 747 830 0 45 0 7 1976 1 5 2807 400 V 120 0 75 558 620 0 32 0 7 1910 1 5 2811 400 V 120 1 1 387 430 0 85 1 4 1911 1 5 2815 400 V 120 1 5 297 330 0 85 1 6 1912 1 5 2822 400 V 120 2 2 198 220 1 00...

Страница 28: ...Dimensions of Flatpack brake resistors 100 W 200 W 28 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 29: ...hange of parameter settings are used for selecting parameters and for changing parameter values These keys are also used in Display mode for selecting the display of an operating value The QUICK MENU keys must be pressed at the same time to give access to all parameters See Menu mode STOP RESET is used for stopping the connected motor or for resetting the frequency converter after a trip Can be se...

Страница 30: ...ss the 12 most important parameters of the frequency converter After programming the frequency converter is in most cases ready for operation When the QUICK MENU key is activated in Display mode the Quick menu starts Scroll through the quick menu using the keys and change the data values by first pressing CHANGE DATA and then changing the parameter value with the keys The Quick menu parameters are...

Страница 31: ...eference can be changed by using the fol lowing keys NB Please note that parameter 020 may block the choice of mode Automatic motor tuning Automatic motor tuning AMT is performed as follows 1 In parameter 107 Automatic motor tuning se lect data value 2 107 will now flash and 2 will not flash 2 AMT is activated by pressing start 107 will now flash and dashes will move from left to right in the data...

Страница 32: ...el unless this function has been programmed as Locked 1 via parameter 018 Lock for data changes Control keys for parameter Setup The control keys are divided into functions in such a way that the keys between the display and the indica tor lamps are used for parameter Setup including selection of the display s view mode during normal op eration DISPLAY STATUS is used to select the display s view m...

Страница 33: ...et to Local con trol and Remote control via parameter 002 Local remote operation with the exception of FWD REV which is only active in Lo cal control Display mode 195NA113 10 VAR 2 SETUP 1 STATUS VAR 1 1 VAR 1 2 VAR 1 3 In normal operation up to 4 different display data items can optionally be shown continuously 1 1 1 2 1 3 and 2 The present operation status or alarms and warn ings that have been ...

Страница 34: ...0 0 Hz SETUP 1 MOTOR IS RUNNING REF TORQUE CURR A Here you can read out the parameter names and units for operating data in the first and second lines Line 2 in the display remains unchanged Display mode IV This display mode can be called up during operation if a change has to be made in another Setup without stopping the frequency converter This function is ac tivated in parameter 005 Programming...

Страница 35: ...eadouts always start in pos 1 see table below Pos Parameter no Unit 1 001 Language 2 102 Motor power kW 3 103 Motor voltage V 4 104 Motor frequency Hz 5 105 Motor current A 6 106 Rated motor speed rpm 7 107 AMT 8 204 Minimum reference Hz 9 205 Maximum reference Hz 10 207 Ramp up time sec 11 208 Ramp down time sec 12 002 Local remote operation 13 003 Local reference Hz Parameter selection Menu mode...

Страница 36: ...cknowledgment is given OK Change of numeric data value If the selected parameter is represented by a numeri cal data value a digit is first chosen using the keys 50 0 HzSETUP 1 FREQUENCY 130 START FREQUENCY 09 0 HZ The selected digit can then be changed infinitely vari ably using the keys 50 0 HzSETUP 1 FREQUENCY 130 START FREQUENCY 10 0 HZ The chosen digit is indicated by the digit flashing The b...

Страница 37: ... in mm VLT 2803 2815 200 240 Volt VLT 2805 2815 380 480 Volt VLT 2822 200 240 Volt VLT 2822 2840 380 480 Volt VLT 2822 220 240 V PD2 VLT 2840 200 240 Volt VLT 2855 2875 380 480 Volt VLT 2840 220 240 V PD2 VLT 2880 82 380 480V MG 27 E2 02 VLT is a registered Danfoss trademark 37 Installation ...

Страница 38: ...I 1B filter 195N3103 Terminal cover The drawing below gives the dimensions for NEMA 1 terminal covers for VLT 2803 2875 Dimension a depends on the unit type IP 21 solution 38 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 39: ...2822 200 240 V VLT 2822 2840 380 480 V 195N2119 47 95 170 VLT 2840 200 240 V VLT 2822 PD2 TR1 2855 2875 380 480 V 195N2120 47 145 170 TR1 2880 2882 380 480 V VLT 2840 PD2 195N2126 47 205 245 EMC filter for long motor cables 192H4719 192H4720 MG 27 E2 02 VLT is a registered Danfoss trademark 39 Installation ...

Страница 40: ...192H4893 40 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 41: ...e carried out See Derating for ambient temperature Please note that the service life of the frequency converter will be reduced if no allowance is made for the derating for ambient temperature Integration All units with enclosure IP 20 must be integrated in cabinets and panels IP 20 is not suitable for remote mounting In some countries e g in the USA units with enclosure NEMA 1 are approved for re...

Страница 42: ... sible particularly when cables are installed in parallel over large distances For sensitive signal cables such as telephone or data cables the greatest possible distance is recommen ded Please note that the required distance depends on the installation and the sensitivity of the signal ca bles and that for this reason exact values cannot be given When being placed in cable trays sensitive cables ...

Страница 43: ...ble clamps in stead It is important to ensure good electrical con tact from the installation plate through the installation screws to the metal cabinet of the frequency converter Use starwashers and galvanically conductive installation plates Do not use unscreened unarmoured motor cables in the installation cabinets The illustration below shows EMC correct electrical in stallation in which the fre...

Страница 44: ...ith a lower ZT is more effective than a screen with a higher ZT ZT is rarely stated by cable manufacturers but it is of ten possible to estimate Z T by looking at and assess ing the physical design of the cable ZT can be assessed on the basis of the following fac tors the contact resistance between the individual screen conductors Screen coverage i e the physical area of the cable covered by the s...

Страница 45: ...as these increase screen impedance at higher frequencies 3 Protection with respect to earth potential between PLC and VLTIf the earth potential between the VLT frequency converter and the PLC etc is different electric noise may occur that will disturb the whole system This problem can be solved by fitting an equalising cable to be placed next to the control cable Minimum cable cross section 16 mm2...

Страница 46: ...Diagram Integrated 1A RFI filter and brake is an option VLT 2803 2815 200 240 V is not supplied with in termediate circuit coils 46 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 47: ...trical installation See also the section Brake Connection VLT 2803 2815 200 240 V 2805 2815 380 480 V VLT 2822 200 240 V 2822 2840 380 480 V MG 27 E2 02 VLT is a registered Danfoss trademark 47 Installation ...

Страница 48: ...22 PD2 2855 2875 380 480 V VLT 2880 2882 380 480 V VLT 2840 PD2 Please note that the units will be supplied with two bottom plates one for metric glands and one for con duits 48 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 49: ...olt units with RFI filters may not be connected to mains supplies in which the voltage between phase and earth is more than 300 Volts Please note that for the IT mains and the delta earth the mains volt age can exceed 300 Volts between phase and earth Units with type code R5 can be connected to mains supplies with up to 400 V between phase and earth See Technical data for correct dimensioning of c...

Страница 50: ...tch disconnects the capaci tors galvanically from ground The switch Mk9 placed next to terminal 96 should be removed to disconnect the RFI filter The RFI switch is only available on VLT 2880 2882 Direction of motor rotation The factory setting is for clockwise rotation with the frequency converter transformer output connected as follows Terminal 96 connected to U phase Terminal 97 connected to V p...

Страница 51: ...ferent frequency converters Mounting with twisted screen ends pigtails is to be avoided since these spoil the screening effect at high frequencies If it is necessary to break the screen to install a motor isolator or motor relay the screen must be continued at the lowest pos sible HF impedance Motor thermal protection The electronic thermal relay in UL approved frequency converters has received th...

Страница 52: ...led using a relay output or digital output terminal 46 The output must be kept closed voltage free for the period of time during which the frequency convert er is not able to support the motor for example due to the load being too great Select Mechanical brake control in parameter 323 or 341 for applications with an electromagnetic brake When the output frequency exceeds the brake cut out value se...

Страница 53: ...nit use the instructions for the unit in question In connection with very long control cables and ana logue signals in rare cases depending on the instal lation 50 60 Hz earth loops may occur because of noise transmitted from mains supply cables In this connection it may be necessary to break the screen and possibly insert a 100 nF capacitor between the screen and the chassis MG 27 E2 02 VLT is a ...

Страница 54: ...en See also the DeviceNet manual MG 90 BX YY for fur ther details Relay connection See parameter 323 Relay output for programming of relay output Nr 01 02 1 2 make normally open 01 03 1 3 break normally closed NB Please note that the cable jacket for the relay must cover the first row of control card terminals otherwise the galvanic isolation PELV cannot be maintained Max cable diameter 4 mm See d...

Страница 55: ... inverted 6 Par 304 Digital input Coasting stop inver ted 2 Par 305 Digital input Jog 13 Speed up down Speed up down using terminals 29 33 Par 302 Digital input Start 7 Par 303 Digital input Freeze reference 14 Par 305 Digital input Speed up 16 Par 307 Digital input Speed down 17 Potentiometer reference Voltage reference via a potentiometer Par 308 Analog input Reference 1 Par 309 Terminal 53 min ...

Страница 56: ...igital input Start 7 Par 304 Digital input Coasting stop inver ted 2 Par 308 Analogue input Reference 1 Par 309 Terminal 53 min scaling 0 Volt Par 310 Terminal 53 max scaling 10 Volt Preset references Switch between 8 preset references via two digital in puts and Setup 1 and Setup 2 Par 004 Active Setup Multisetup 1 5 Par 204 Min reference 0 Hz Par 205 Max reference 50 Hz Par 302 Digital input Sta...

Страница 57: ...eference The start signal terminal 18 logical 0 must then be removed before the counter value in parameter 344 has managed to stop the VLT frequency converter Par 307 Digital input Pulse input 30 Par 343 Precise stop function Counter stop with reset 1 Par 344 Counter value 100000 Use of internal PID controller closed loop proc ess control 1 Connect the frequency converter to mains and motor cables...

Страница 58: ... perienced value 442 Differentiation time D time 0 10 sec experienced value 205 Max reference is to be set equal to parameter 415 example 10 bar 215 Preset reference 1 Set the preset ref erence to the wanted min reference value example 5 bar Parameter 205 and 215 are shown in the process unit chosen in parameter 416 The value in brackets are data values cor responding to the wanted function Exampl...

Страница 59: ...y on the condition that is has been selected as active in parameter 016 Local reversing and that parameter 013 Local control is set at Local control and open loop 1 or Local control as parameter 100 3 Pa rameter 200 Output frequency range is set at Both directions 4 parameter 003 Local reference where the ref erence can be set using the and keys 5 an external control command that can be connected ...

Страница 60: ...ween Setups can be made in this parameter via a digital input or via serial com munication Description of choice Factory Setup 0 contains the factory set parameter values Setup 1 4 1 4 are four individual Setups which can be selected as required Multi Setup 5 is used where remote controlled shifts between the four Setups via a digital input or via serial communication is required 005 Programming S...

Страница 61: ... all parameters 2 if all parameter values transferred are to be copied to the frequency converter to which the control panel is attached Select Down load size independent par 3 if you only want to down loade the size independent parameters This is used when downloading to a frequency converter with a dif ferent rated power size than that from which the pa rameter setup originates NB Upload downloa...

Страница 62: ...the resulting signal value using the unit scaling selected in parameter 414 Minimum feedback FBLOW 415 Maximum feedback FBHIGH and 416 Process units Frequency Hz gives the output frequency of the fre quency converter Output frequency x scaling equals the present output frequency fM multiplied by the factor set in parameter 008 Display scaling of output frequency Motor current A gives the phase cur...

Страница 63: ...e See par 009 Large dis play readout Analog input 53 V 17 Function In this parameter the first of three data values can be selected that is to be displayed in the LCP control unit display line 1 position 1 This is a useful function e g when setting the PID regulator as it gives a view of process reactions to reference changes The display readout is activated by pushing the DISPLAY STA TUS key Desc...

Страница 64: ...e this param eter has been set to Remote operated control and open loop 1 The configuration selected in parameter 100 Configuration will be active The shift will be smooth Shifting from Remote control to Local control in param eter 002 Local remote operation while this parameter has been set to Remote operated control as parameter 100 4 the present reference will be maintained If the reference sig...

Страница 65: ...OCAL STOP 1 Forced stop set ref to 0 LOCAL STOP REF 0 2 Function Setting of the required operating mode when the mains voltage is engaged This function can only be active if Local operation 1 has been selected in parameter 002 Local remote operation Description of choice Auto restart use saved ref 0 is selected if the fre quency converter is to start using the local reference set in parameter 003 ...

Страница 66: ...alue 0 999 000 Function In this parameter you define which parameters are re quired in the Quick Menu when parameter 024 User defined Quick Menu is set to Active 1 Up to 20 parameters can be selected for the user de fined Quick Menu NB Please note that this parameter can only be set using an LCP 2 control panel See Order form Description of choice The Quick Menu is set up as follows 1 Select param...

Страница 67: ...nit or as a percentage A feedback signal must be added from the process and the process reg ulator must be set in parameter group 400 Special functions Process closed loop is not active if a Devi ceNet card is mounted and Instance 20 70 or 21 71 is chosen in parameter 904 Instance types 101 Torque characteristic TORQUE CHARACT Value Constant torque Constant torque 1 Variable torque low torque low ...

Страница 68: ...meplate data on the motor regardless of the frequency converter s mains voltage 104 Motor frequency fM N MOTOR FREQUENCY Value 24 1000 Hz 50 Hz Function This is where to select the rated motor frequency fM N Description of choice Select a value that corresponds to the nameplate data on the motor 105 Motor current IM N MOTOR CURRENT Value 0 01 IMAX Depends on choice of motor Function The nominal ra...

Страница 69: ...using the AMT function the following points should be observed For AMT to be able to define the motor pa rameters as well as possible the correct type plate data for the motor connected to the fre quency converter must be keyed into param eters 102 to 106 Alarms will appear in the display if faults arise during tuning of the motor As a rule the AMT function will be able to measure the RS values fo...

Страница 70: ...nameplate data 117 Resonance damping resonance damping Value OFF 100 OFF 100 OFF OFF Function It is possible to optimise the resonance damping in CT mode The grade of the influence is adjusted in this parameter The value may be set between 0 OFF and 100 100 corresponds to 50 reduction of U F ratio Default value is OFF Internal settings fixed The resonance filter is active from 10 of nominal speed ...

Страница 71: ...cy converter during the start delay time inverter turned off Choose Start frequency voltage clockwise 3 to obtain the function described in parameter 130 Start frequen cy and 131 Voltage at start during start delay time Regardless of the value assumed by the reference signal the output frequency equals the setting in pa rameter 130 Start frequency and the output voltage will correspond to the sett...

Страница 72: ... Max DC brake voltage depends on the motor data selected In parameter 126 DC braking time DC braking time is determined and in parameter 127 DC brake cut in fre quency the frequency at which DC braking becomes active is selected If a digital input is programmed to DC braking inverse 5 and shifts from logic 1 to logic 0 DC braking will be activated When a stop com mand becomes active DC braking is ...

Страница 73: ...en the motor is over loaded according to the calculations NB This function cannot protect the individual motors in the case of motors linked in par allel 130 Start frequency Start frequency Value 0 0 10 0 Hz 0 0 Hz Function The start frequency is active for the time set in param eter 120 Start delay after a start command The output frequency will jump to the next preset frequency Cer tain motors s...

Страница 74: ...racteristic is set By in creasing the load compensation the motor is given an extra voltage and frequency supplement at increasing loads This is used e g in motors applications in which there is a big difference between the full load current and idle load current of the motor NB If this value is set too high the frequency converter may cut out because of over current Description of choice If the f...

Страница 75: ...uency 139 Brake cut in frequency Brake cut in Value 0 5 132 0 1000 0 Hz 3 0 Hz Function Here you can select the frequency at which the exter nal brake is activated this takes place via the output defined in parameter 323 Relay output 1 3 or 341 Dig ital output terminal 46 Description of choice Set the required frequency 140 Current minimum value CURRENT MIN VAL Value 0 100 of inverter output curre...

Страница 76: ...nerator torque that can be applied to the motor without the in termediate circuit voltage exceeding the warning level Description of choice The value is increased if a greater possible brake tor que is required If 1 0 is selected this corresponds to the AC brake being inactive NB If the value in par 144 is increased the motor current will simultaneously increase significantly when generator loads ...

Страница 77: ...ed that corresponds to the minimum speed at which the motor is allowed to run If Both di rections has been selected in parameter 200 Output frequency range the minimum frequency is of no sig nificance Description of choice The value chosen can range from 0 0 Hz to the fre quency set in parameter 202 Output frequency high limit fMAX 202 Output frequency high limit fMAX max output freq Value fMIN 13...

Страница 78: ...s play readout if a readout is desired It is possible to have both references and external ref erences simultaneously In parameter 214 Reference function a selection can be made to determine how preset references should be added to the external ref erences There is also an independent local reference in pa rameter 003 Local reference in which the resulting reference is set using the keys When the ...

Страница 79: ... loop 3 Par 416 Description of choice The minimum reference is preset if the motor has to run at a minimum speed regardless of whether the resulting reference is 0 205 Maximum reference RefMAX max reference Value Par 100 Config Open loop 0 Par 204 RefMIN 1000 000 Hz 50 000 Hz Par 100 Config Closed loop 1 3 Par 204 RefMIN Par 415 Max feedback 50 000 rpm par 416 Function The maximum reference gives ...

Страница 80: ...2 3600 00 sec 3 00 sec VLT 2803 2875 10 00 sec VLT 2880 2882 Function See description of parameter 207 Ramp up time 1 Description of choice Set the required ramp up time Shift from ramp 1 to ramp 2 by activating Ramp 2 via a digital input 210 Ramp down time 2 RAMP DOWN TIME 2 Value 0 02 3600 00 sec 3 00 sec VLT 2803 2875 10 00 sec VLT 2880 2882 Function See description of parameter 208 Ramp down t...

Страница 81: ...ction entitled All about the VLT 2800 See also the drawing in Handling of ref erences The following parameters are preset Par 204 Minimum reference 10 Hz Par 205 Maximum reference 50 Hz Par 215 Preset reference 15 Par 308 Term 53 Analogue input Reference Par 309 Term 53 min scaling 0 V Par 310 Term 53 max scaling 10 V When parameter 214 Reference function is set to Sum 0 one of the preset Preset r...

Страница 82: ...reference is stated as a percentage of the reference range RefMIN Ref MAX or as a percentage of the other external references depending on the choice made in parameter 214 Reference function The choice between preset references can be made via the digital inputs or via serial communication Preset ref msb Preset ref lsb 0 0 Preset ref 1 0 1 Preset ref 2 1 0 Preset ref 3 1 1 Preset ref 4 Description...

Страница 83: ...w current ILOW 225 Warning Low frequency fLOW warn freq low Value 0 0 par 226 Warn High frequency fHIGH 0 0 Hz Function If the output frequency falls below the preset limit fLOW a warning is given Parameters 223 228 Warning functions are out of function during ramp up after a start command and af ter stop command or during stop The warning func tions are activated when the output frequency has rea...

Страница 84: ...top command or during stop The warning func tions are activated when the output frequency has reached the resulting reference The signal outputs can be programmed to give a warning signal via ter minal 46 and via the relay output The unit for feedback in Closed loop is programmed in parameter 416 Proc ess units Description of choice Set the required value within the feedback range pa rameter 414 M...

Страница 85: ...back PULSE FEEDBACK 29 Pulse input PULSE INPUT 30 Selection of Setup lsb SETUP SELECT LSB 31 31 31 31 31 Selection of Setup msb SETUP SELECT MSB 32 32 32 32 32 Reset and start RESET AND START 33 33 33 33 33 Pulse counter start PULSE COUNTER START 34 34 1 All functions on terminal 18 and 19 are controlled by an interrupter which means that the repetitive accu racy of the response time is constant C...

Страница 86: ...rt command is allowed at the same time Acts as latch start revers ing provided latch start has been chosen for terminal 18 Is not active for Process regulation closed loop See also parameter 200 Output frequency range di rection Start clockwise is used if you want the motor shaft only to be able to rotate clockwise when started Should not be used for Process regulation closed loop Start anticlockw...

Страница 87: ...ch instead this can also be connected to the input If motors operate in parallel the thermistors thermal switches can be connected in series total resistance lower than 3 kΩ Parameter 128 Motor thermal protection must be pro grammed for Thermistor warning 1 or Thermistor trip 2 and the thermistor is to be connected between a digital input and terminal 50 10 V supply Precise stop inverse is selecte...

Страница 88: ...0 0 10 0 Volt 0 0 Volt Function This parameter is used for setting the signal value that is to correspond to the minimum reference or the min imum feedback parameter 204 Minimum reference RefMIN 414 Minimum feedback FBMIN Description of choice Set the required voltage value For reasons of accu racy compensation should be made for voltage loss in long signal cables If the Time out function is to be...

Страница 89: ...17 Time out LIVE ZERO TIME O Value 1 99 sec 10 sec Function If the signal value of the reference or feedback signal connected to one of the input terminals 53 or 60 falls below 50 of the minimum scaling for a period longer than the time set the function selected in parameter 318 Function after time out will be activated This func tion is only active if in parameter 309 Terminal 53 min scaling a va...

Страница 90: ...btained which is proportional to the feedback value in the interval Minimum feedback FBMIN Maximum feedback FBMAX parameter 414 415 0 fMAX 0 20 mA 4 20 mA An output signal is obtained which is proportional to the output frequency in the interval 0 fMAX parameter 202 Output frequency high limit fMAX 0 IINV 0 20 mA 4 20 mA An output signal is obtained which is proportional to the output current in t...

Страница 91: ...larm The output is activated by an alarm Output frequency higher than fLOW the output frequen cy is higher than the value set in parameter 225 Warning Low frequency fLOW Output frequency lower than fHIGH the output frequen cy is lower than the value set in parameter 226 Warn ing High frequency fHIGH Output current higher than ILOW the output current is higher than the value set in parameter 223 Wa...

Страница 92: ...es a 24 V DC signal when a given condition is fulfilled Terminal can also be used for frequency output Parameter 342 sets the maximum pulse frequency Description of choice Pulse reference RefMIN Ref MAX An output signal is obtained which is proportional to the resulting reference value in the interval Minimum reference Ref MIN Maximum reference RefMAX pa rameters 204 205 Pulse feedback FBMIN FBMAX...

Страница 93: ...f pul ses programmed by the user have been received at input terminal 33 In this way an internal stop signal will activate the normal ramp down time parameter 208 The counter function is activated starts timing at the flank of the start signal when it changes from stop to start Speed compensated stop To stop at precisely the same point regardless of the present speed a stop signal received is dela...

Страница 94: ...ompensated stop the delay time at different frequen cies has a major influence on the way in which you stop Description of choice The factory setting is 10 ms This means that it is as sumed that the total delay from the Sensor PLC and other hardware corresponds to this setting NB Only active for speed compensated stop 94 MG 27 E2 02 VLT is a registered Danfoss trademark ...

Страница 95: ...uency converter is to be reset and restarted automatically Furthermore it is possible to select the number of times a restart is to be attempted The time between each attempt is set in parameter 406 Auto matic restart time Description of choice If Manual reset 0 is selected reset is to be carried out via the STOP RESET key a digital input or serial communication If the frequency converter is to ca...

Страница 96: ...parameter must be set to LC filter connected if an LC filter is connected between the frequency convert er and the motor Description of choice The LC filter connected 3 must be used if an LC filter is connected between the frequency converter and the motor as otherwise the frequency converter cannot protect the LC filter NB When the LC filter is selected the switch ing frequency is changed to 4 5 ...

Страница 97: ...is used in Closed loop also as a unit for Minimum Maximum reference and Minimum Maximum feed back Description of choice Select the required unit for the reference feedback sig nal VLT 2800 Regulators The VLT 2800 has two integrated PID regulators one to regulate speed and one to regulate processes Speed regulation and process regulation require a feedback signal back to an input There are a number...

Страница 98: ...n the process unit cor responding to the minimum and maximum scaling val ues for signals that are connected to the terminal Reference In parameter 205 Maximum reference RefMAX it is pos sible to preset a maximum reference that scales the sum of all references i e the resulting reference The minimum reference in parameter 204 is an ex pression of the minimum value that the resulting ref erence can ...

Страница 99: ... signal parameter 437 PID normal inverted control must be programmed at Inverted Anti Windup In the factory the process regulator is preset with an active anti windup function This function means that when either a frequency limit a current limit or a volt age limit is reached the integrator is initialised at a frequency corresponding to the present output fre quency This is a means of avoiding th...

Страница 100: ...ccurred 419 Speed PID differential time SPEED diff time Value 0 00 OFF 200 00 ms 20 00 ms Function The differentiator does not react to a constant error It only makes a contribution when the error changes The quicker the error changes the stronger the gain from the differentiator will be The contribution is pro portional to the speed at which errors change Description of choice Quick control is ob...

Страница 101: ...t the output voltage U1 that is to match the first output frequency F1 parameter 424 F1 frequency 424 F1 frequency F1 frequency Value 0 0 par 426 F2 frequen cy Par 104 Motor fre quency Function See parameter 423 U1 voltage Description of choice Set the output frequency F1 that is to match the first output voltage U1 parameter 423 U1 voltage 425 U2 voltage U2 voltage Value 0 0 999 0 V par 103 Funct...

Страница 102: ...ontinue regulating on a deviation even if it is not possible to increase reduce the output frequency Description of choice The factory setting is Enable 1 which means that the integration link is initialised in relation to the actual out put frequency if either the current limit the voltage limit or the max min frequency has been reached The process regulator will not engage again until either the...

Страница 103: ...F time Value 0 00 OFF 10 00 sec 0 00 sec Function The differentiator does not react to a constant error It only makes a gain when an error changes The quicker the deviation changes the stronger the gain from the differentiator The gain is proportional to the speed at which the deviation changes Description of choice Quick regulation is obtained with a long differentiation time However this time ma...

Страница 104: ...and start Limitations Too low inertia will lead to load acceleration which can be dangerous or prevent correct catching of a rotating motor Use the DC brake instead If the load is driven e g by Windmilling ro tating motor effects the unit may cut out because of overvoltage Flying start does not work at lower values than 250 rpm 451 Speed PID feedforward factor feedforward fact Value 0 500 100 Func...

Страница 105: ...load Should only be used if there are problems with overvoltage in the intermediate cir cuit 461 Feedback conversion FEEDBAC CONV Value Linear LINEAR 0 Square root SQUARE ROOT 1 Function In this parameter a function is selected which converts a connected feedback signal from the process to a feedback value that equals the square root of the con nected signal This is used e g where regulation of a ...

Страница 106: ...re hole pumps it must be assured that the pump is stopped in case of dry run This is assured by the Dry run detec tion feature How Does It Work Dry run detection is based on power frequency moni toring and works in both closed and open loop Stop trip due to dry run is initiated under following conditions Closed loop The frequency converter is running at maxi mum frequency parameter 202 Output fre ...

Страница 107: ...ue 0 disables Enhanced sleep mode Note In parameter 463 Boost set point it is possible to set up the frequency converter to provide a pressure boost before the pump is stopped 463 Boost setpoint BOOST SETPOINT Value 1 200 100 of setpoint Function This function can only be used if Closed loop has been selected in parameter 100 In systems with constant pressure regulation it is ad vantageous to incr...

Страница 108: ... set in parameter 202 Output frequency high limit fMAX 467 Minimum Pump Power Min pump power Value 0 500 000 W 0 Function The associated power consumption at the frequency entered in parameter 465 Minimum pump frequency Description of choice Enter the no low flow power reading at minimum pump frequency entered in parameter 465 Depending on pump size or curve select W or kW in par 009 index 32 and ...

Страница 109: ...cy at a rate different than the normal Ramp Up rate param 207 Description of choice As an example vertical pumps and other equipment often have a requirement to not operate below a min imum speed any longer than necessary Damage and excessive wear can occur when operating below min imum speed frequency for too long a period of time The Initial Ramp is used to quickly accelerate the mo tor equipmen...

Страница 110: ...erforming numerous fill mode se quences and either increasing or decreasing the value of this parameter to obtain the fastest fill without caus ing a water hammer The Fill Mode is also beneficial when bringing the mo tor to a stop as it prevents sudden changes in pressure and flow which could also cause a water hammer 485 Fill Rate FILL RATE Value OFF 000000 001 999999 999 units s OFF Function Est...

Страница 111: ...h character is secured via a parity bit which is set at 1 when it reaches parity i e when there is an equal number of 1 s in the 8 data bits and the parity bit in total A character is completed by a stop bit thus con sisting of 11 bits in all Telegram Structure Each telegram begins with a start character STX 02 Hex followed by a byte that denotes the length of the telegram LGE and a byte that deno...

Страница 112: ...Bit 5 0 No Broadcast Bit 0 4 Frequency converter address 1 31 2 Address format 1 126 The byte for address range 1 126 has the following profile Bit 7 1 address format 1 126 active Bit 0 6 Frequency converter address 1 126 Bit 0 6 0 Broadcast The slave sends the address byte back unchanged in the response telegram to the master Example writing to frequency converter address 22 16H with address form...

Страница 113: ...ameter value in RAM double word 1 1 0 1 Write parameter value in RAM and EEprom double word 1 1 1 0 Write parameter value in RAM and EEprom word 1 1 1 1 Read write text Response slavemaster Bit no Response 15 14 13 12 0 0 0 0 No response 0 0 0 1 Parameter value transferred word 0 0 1 0 Parameter value transferred double word 0 1 1 1 Command cannot be performed 1 1 1 1 Text transferred If the comma...

Страница 114: ...elected by entering the value in the PWE block See Example Selecting a data value Via serial communication it is only possible to read pa rameters that have data type 9 text string Parameter 621 635 Nameplate data is data type 9 For example in parameter 621 Unit type it is possible to read the unit size and mains voltage range When a text string is transferred read the length of the telegram is va...

Страница 115: ...nly be transferred as a whole number a conversion factor must be used to transfer decimals Example Parameter 201 Output frequency low limit fMIN has a conversion factor of 0 1 If you wish to preset the min imum frequency to 10 Hz the value 100 must be transferred as a conversion factor of 0 1 means that the value transferred is multiplied by 0 1 The value 100 will thus be perceived as 10 0 Convers...

Страница 116: ...uick stop ramp down time Bit 05 Freeze output frequency Bit 05 0 causes the present output frequency in Hz to freeze The frozen output frequency can now only be changed by means of the digital inputs program med to Speed up and Speed down NB If Freeze output is active the frequency converter cannot be stopped via Bit 06 Start or via a digital input The frequency converter can only be stopped by th...

Страница 117: ...atus Word according to FC Profile The status word is used to inform the master e g a PC of the slave s frequency converter mode Slave Master Bit Bit 0 Bit 1 00 Control ready 01 Drive ready 02 Coasting stop 03 No trip Trip 04 Not used 05 Not used 06 Trip lock 07 No warning Warning 08 Speed ref Speed ref 09 Local control Ser communi 10 Outside frequency range Frequency limit OK 11 Motor running 12 1...

Страница 118: ...at the output frequency is greater than 0 Hz Bit 13 Voltage warning high low Bit 13 0 means that there are no voltage warnings Bit 13 1 means that the DC voltage in the frequency converter s intermediate circuit is too low or too high Bit 14 Current limit Bit 14 0 means that the output current is less than the value in parameter 221 Current Limit ILIM Bit 14 1 means that the output current is grea...

Страница 119: ...Control word according to FC protocol Bit 15 Reversing See description under Control word according to FC protocol Status word according to Profidrive protocol The status word is used to inform the master e g a PC of the slave s frequency converter mode Slave Master Bit Bit 0 Bit 1 00 Control ready 01 Drive ready 02 Coasting stop 03 No trip Trip 04 ON 2 OFF 2 05 ON 3 OFF 3 06 Start enable Start di...

Страница 120: ...munication reference has the following format 0 16384 4000 Hex 0 100 Par 204 Mini mum ref Par 205 Maximum ref It is possible to change the direction of rotation via the serial reference This is done by converting the binary reference value to 2 complement See example Example Control word and serial communication ref The frequency converter is to receive a start command and the reference is to be s...

Страница 121: ...r that the current output frequency is 50 of the output frequency range Par 201 Output frequency low limit 0 Hz Par 202 Output frequency high limit 50 Hz Status word 0F03 Hex Output frequency 2000 Hex 50 of the frequency range corresponding to 25 Hz MG 27 E2 02 VLT is a registered Danfoss trademark 121 Programming ...

Страница 122: ...t but must be preset via the operating unit 502 Coasting Stop COASTING SELECT Value Digital input DIGITAL INPUT 0 Serial port SERIAL PORT 1 Logic and LOGIC AND 2 Logic or LOGIC OR 3 Function Parameters 502 508 allow a choice between control ling the frequency converter via the digital inputs and or via the serial port If Serial port 1 is selected the relevant command can only be activated if a com...

Страница 123: ...or LOGIC OR 3 Function See function description for parameter 502 Coasting stop Description of choice The table below shows when the motor is running and the DC braking when each of the following is selected Digital input 0 Serial port 1 Logic and 2 or Logic or 3 NB Note that DC braking inverse and Bit 02 in the control word are active at logic 0 Digital input 0 Dig input Ser port Function 0 0 DC ...

Страница 124: ...Anti clockwise 1 1 Anti clockwise Serial port 1 Dig input Ser port Function 0 0 Clockwise 0 1 Anti clockwise 1 0 Clockwise 1 1 Anti clockwise Logic and 2 Dig input Ser port Function 0 0 Clockwise 0 1 Clockwise 1 0 Clockwise 1 1 Anti clockwise Logic or 3 Dig input Ser port Function 0 0 Clockwise 0 1 Anti clockwise 1 0 Anti clockwise 1 1 Anti clockwise 507 Selection of Setup SETUP SELECT Value Digit...

Страница 125: ...Function If parameter 512 Telegram Profile shows the selection Profidrive 0 two fixed speeds Jog 1 or Jog 2 can be selected via the serial port The function is the same as in parameter 213 Jog fre quency Description of choice Jog frequency fJOG can be selected between 0 Hz and f MAX 512 Telegram Profile Telegram Profile Value Profidrive Profidrive 0 FC protocol FC protocol 1 Function It is possibl...

Страница 126: ...uency x scale FREQUENCY X SCALE Hz 520 Motor current MOTOR CURRENT Amp 521 Torque TORQUE 522 Power kW POWER KW kW 523 Power HP POWER HP HP 524 Motor voltage MOTOR VOLTAGE V 525 DC link voltage DC LINK VOLTAGE V 526 Thermal load motor MOTOR THERMAL 527 Thermal load inverter INV THERMAL 528 Digital input DIGITAL INPUT Bin 529 Term 53 analogue input ANALOG INPUT 53 V 531 Term 60 analogue input ANALOG...

Страница 127: ...l Terminal 53 analogue input V parameter 529 Gives the voltage value for the signal on terminal 53 Terminal 60 analogue input mA parameter 531 Gives the present value for the signal on terminal 60 Pulse reference Hz parameter 532 Gives a pulse frequency in Hz connected to terminal 33 External reference parameter 533 Gives the sum of external references as a percentage sum of analogue pulse serial ...

Страница 128: ...oller Description of choice Select the parity that matches the setting for the Mod bus master controller Even or odd parity is sometimes used to allow a transmitted word to be checked for er rors Because Modbus RTU uses the more efficient CRC Cyclic Redundancy Check method of checking for errors parity checking is seldom used in Modbus RTU networks 571 Modbus communications timeout M BUS COM TIME ...

Страница 129: ...VLT 2800 It is possible to read single elements of the list by using the corresponding subindex The subindexes start at 1 and follow the or der of the parameter numbers Each parameter holds up to 116 elements parameter numbers When a 0 is returned as parameter number the list ends MG 27 E2 02 VLT is a registered Danfoss trademark 129 Programming ...

Страница 130: ...peratures Gives the number of overtemperature faults that have been registered on the frequency converter s heat sink Parameter 605 Number of overvoltages Gives the number of overvoltages of the intermediate circuit voltage in the frequency converter This is only counted when Alarm 7 Overvoltage is active NB Parameters 615 617 Fault log cannot be read out via the integral control unit 615 Fault lo...

Страница 131: ... OK key is activated the pa rameter is reset to zero 620 Operation Mode OPERATION MODE Value Normal operation NORMAL OPERATION 0 Control card test CONTROL CARD TEST 2 Initialise INITIALIZE 3 Function NB Please note that the control card will be different on DeviceNet units See the De viceNet manual MG 90 BX YY for further details In addition to its normal function this parameter can be used to tes...

Страница 132: ... the test is OK Remove the test connector and the fre quency converter is ready for operation Parameter 620 Operating mode is automatically set to Normal op eration 0 Initialisation 3 is selected if you wish to use the unit s factory setting Procedure for initialisation 1 Select Initialisation 3 2 Disconnect the mains voltage and wait until the light in the display has disappeared 3 Connect the ma...

Страница 133: ... 42 2 kB Parameter 626 Nameplate Database ID number The ID number of the software s database appears here Example ID 1 14 Parameter 627 Nameplate Power section version The ID number of the unit s power section appears here Example ID 1 15 Parameter 628 Nameplate Application option type Here you can see which types of application options are installed in the frequency converter Parameter 630 Namepl...

Страница 134: ...e and earth TN network with maximum 300 Vrms be tween phase and earth IT network with maximum 400 Vrms between phase and earth In order to maintain PELV all connections made to the control terminals must be PELV e g thermistor must be reinforced double insulated Earth leakage current and RCD relays Earth leakage current is primarily caused by the par asitic capacitance between motor phases and mot...

Страница 135: ...ee parameter 409 Trip delay overcurrent ILIM An extreme overload will cause the switching frequen cy to be derated to 3000 Hz dU dt on motor When a transistor in the inverter is opened the voltage across the motor terminals will rise by a voltage time ratio dU dt determined by the motor cable type cross section induc tion capacity length and screened arm oured unscreened unarmoured the mains volta...

Страница 136: ...orque is constant e g with a conveyor belt across the full regulating range The reduced amount of ventilation determines the permis sible torque in continuous operation If the motor is to run continuously at an rpm lower than half the rated value extra cooling air must be supplied to the motor Instead of providing extra cooling it is possible to re duce the motor load ratio This can be done by sel...

Страница 137: ...frequency converters INV The load on the frequency converter has little effect on its efficiency In general the efficiency is the same at the rated motor frequency f M N regardless of whether the motor supplies 100 rated shaft torque or only 75 e g in case of part loads This also means that the efficiency of the frequency converter does not change even if other U f charac teristics are chosen Howe...

Страница 138: ...ct power consump tion directly but they increase the heat losses in the installation transformer cables Consequently in plants with a rather high percentage of rectifier load it is important to maintain harmonic currents at a low level to avoid overload of the transformer and high temperature in the cables Some of the harmonic currents might disturb commu nication equipment connected to the same t...

Страница 139: ...0 V version with 1A RFI filter 1 Yes 40 m screened arm oured Yes 40 m screened arm oured Yes 15 m screened arm oured No 3 x 200 V version with 1A RFI filter R4 For use with RCD Yes 20 m screened arm oured Yes 20 m screened arm oured Yes 7 m screened arm oured No 3 x 480 V version with 1A 1B RFI filter Yes 50 m screened arm oured Yes 50 m screened arm oured Yes 25 m screened arm oured No 1 x 200 V ...

Страница 140: ...s Simulation of transients brought about e g by lightning that strikes near installations EN 61000 4 2 IEC 61000 4 2 Electrostatic discharges ESD Simulation of electrostatic discharges from human beings EN 61000 4 3 IEC 61000 4 3 Incoming electromagnetic field radiation amplitude modula ted Simulation of the effects of radar and radio broadcast devices as well as mobile communication devices VDE 0...

Страница 141: ...ter contains a number of mechanical and electronic components which to a varying extent are vulnerable to environmental impact Consequently the frequency converter is not to be installed in environments where liquids particles or gases are in the air that would impact and damage the elec tronics Unless the necessary measures are taken to protect the frequency con verter there is a risk of stoppage...

Страница 142: ...s in aggres sive environments increases the risk of stoppages in addition to considerably re ducing the service life of the unit Before the frequency converter is installed it must be checked whether there are liquids particles or gases in the air This can be done by looking at existing in stallations in the same environment Typical indicators of harmful airborne liquids are water or oil on metal ...

Страница 143: ...ll be shown on the display until the fault has been corrected while an alarm will continue to flash until the STOP RESET key is activated The table shows the various warnings and alarms and whether the fault locks the frequency converter After a Trip locked the mains supply is cut off and the fault is corrected The mains supply is re connected and the frequency converter is reset The frequency con...

Страница 144: ...e mains supply The alarm can also occur when the load is pulsing In this instance the pulses must be dampened e g using an inertia disc WARNING 5 Voltage warning high If the intermediate circuit voltage UDC is higher than Voltage warning high the frequency converter will give a warning and the motor will continue to run un changed If the UDC remains above the voltage warn ing limit the inverter wi...

Страница 145: ...reater than the value in param eter 221 Current Limit LIM and the frequency converter will trip after a set time selected in parameter 409 Trip delay overcurrent WARNING ALARM 13 Overcurrent The inverter s peak current limit approx 200 of rated output current has been exceeded The warning will last approx 1 2 sec and the frequency converter will then trip and emit an alarm Switch off the frequency...

Страница 146: ...otor pa rameter database Alarm 43 internal fault number 6 General power card fault Alarm 44 internal fault number 7 Minimum software version of control card or BMC Alarm 45 internal fault number 8 I O fault digital in put output relay or analog input output NB When restarting after an alarm 38 45 the frequency converter will display an alarm 37 In parameter 615 the actual alarm code can be read AL...

Страница 147: ...tion fault 40000000 Switch mode warning 80000000 Heat sink temperature high Bit Hex Extended status words 000001 Ramping 000002 AMT running 000004 Start forw reverse 000008 Slow down 000010 Catch up 000020 Feedback high 000040 Feedback low 000080 Output current high 000100 Output current low 000200 Output frequency high 000400 Output frequency low 002000 Braking 008000 Out of frequency range Bit H...

Страница 148: ...output Unlimited Ramp times 0 02 3600 sec Torque characteristics Starting torque parameter 101 Torque characteristic Constant torque 160 in 1 min Starting torque parameter 101 Torque characteristics Variable torque 160 in 1 min Starting torque parameter 119 High starting torque 180 for 0 5 sec Overload torque parameter 101 Torque characteristic Constant torque 160 Overload torque parameter 101 Tor...

Страница 149: ...ltage on input 28 V DC Input resistance Ri approx 2 kΩ Scan interval 13 3 msec Resolution 10 bit Accuracy 100 Hz 1 kHz terminal 33 Max error 0 5 of full scale Accuracy 1 kHz 67 6 kHz terminal 33 Max error 0 1 of full scale The pulse input terminal 33 is galvanically isolated from the supply voltage PELV and other high voltage terminals See section entitled Galvanic Isolation Control card digital f...

Страница 150: ... high voltage terminals See section entitled Galvanic Isolation Control card RS 485 serial communication Terminal number 68 TX RX 69 TX RX Terminal number 67 5 V Terminal number 70 Common for terminals 67 68 and 69 Full galvanic isolation See section entitled Galvanic Isolation For CANopen DeviceNet units see VLT 2800 DeviceNet manual MG 90 BX YY Relay outputs 1 Number of programmable relay output...

Страница 151: ...f Precise start stop terminals 18 19 0 5 msec System response time terminals 18 19 27 29 33 26 6 msec Speed control range open loop 1 10 of synchronous speed Speed control range closed loop 1 120 of synchronous speed Speed accuracy open loop 150 3600 rpm Max error of 23 rpm Speed accuracy closed loop 30 3600 rpm Max error of 7 5 rpm All control characteristics are based on a 4 pole asynchronous mo...

Страница 152: ...er module is below 70 C The frequency converter is protected against short circuits on motor terminals U V W If a mains phase is missing the frequency converter will cut out Monitoring of the intermediate circuit voltage ensures that the frequency converter cuts out if the intermediate circuit voltage is too low or too high The frequency converter is protected against earth fault on motor terminal...

Страница 153: ... 4 10 4 10 4 10 16 6 Max pre fuses IEC UL2 A 20 20 20 20 20 20 20 20 20 20 20 20 35 35 25 25 50 50 Efficiency3 95 95 95 95 95 95 95 95 95 Power loss at 100 load W 24 35 48 69 94 125 125 231 231 Weight kg 2 0 2 0 2 0 2 0 2 0 3 7 6 0 6 0 18 50 Enclosure4 type IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 NEMA 1 1 American Wire Gauge Max cable cross section is the largest cable cross section ...

Страница 154: ...5 7 5 11 0 15 0 18 5 Typical shaft output PM N HP 5 0 7 5 10 0 15 0 20 0 25 0 Max cable cross sec tion motor mm2 AWG 1 4 10 4 10 4 10 16 6 16 6 16 6 Input current IL N A 8 1 10 6 14 9 24 0 32 0 37 5 3 x 380 480 V IL MAX 60s A 13 0 17 0 23 8 38 4 51 2 60 Max cable cross sec tion power mm2 AWG 1 4 10 4 10 4 10 16 6 16 6 16 6 Max pre fuses IEC UL2 A 20 20 25 25 25 25 50 50 50 50 50 50 Efficiency3 96 ...

Страница 155: ...rature for VLT 2800 Design Guide MG 28 EX YY Data sheet MD 28 AX YY Instructions for VLT 2800 LCP remote mounting kit MI 56 AX 51 Filter instruction MI 28 B1 02 VLT 2800 DeviceNet cable MI 28 F1 02 Cold plate MI 28 D1 02 Precise stop MI 28 C1 02 Communication with VLT 2800 Profibus manual MG 90 AX YY VLT 2800 DeviceNet manual MG 90 BX YY X version numberYY language version MG 27 E2 02 VLT is a reg...

Страница 156: ...ing Not active Yes 0 5 017 Local reset of trip Active Yes 0 5 018 Data change lock Not locked Yes 0 5 019 Operating status at power up Forced stop use saved ref Yes 0 5 020 Lock for Hand mode Active No 0 5 024 User defined Quick Menu Not active No 0 5 025 Quick Menu Setup 000 No 0 6 4 Setup Yes means that the parameter can be programmed individually in each of the four Setups i e one single parame...

Страница 157: ...unction Coast in start del Yes 0 5 122 Function at stop Coast Yes 0 5 123 Min freq for activation of par 122 0 1 Hz Yes 1 5 126 DC braking time 10 sec Yes 1 6 127 DC brake engaging frequency OFF Yes 1 6 128 Thermal motor protection No protection Yes 0 5 130 Start frequency 0 0 Hz Yes 1 5 131 Voltage at start 0 0 V Yes 1 6 132 DC brake voltage 0 Yes 0 5 133 Start voltage depends on unit Yes 2 6 134...

Страница 158: ...ime 3 00 sec Yes Yes 2 7 212 Quick stop ramp down time 3 00 sec Yes Yes 2 7 213 Jog frequency 10 0 Hz Yes Yes 1 6 214 Reference function Sum Yes Yes 0 5 215 Preset reference 1 0 00 Yes Yes 2 3 216 Preset reference 2 0 00 Yes Yes 2 3 217 Preset reference 3 0 00 Yes Yes 2 3 218 Preset reference 4 0 00 Yes Yes 2 3 219 Catch up slow down reference 0 00 Yes Yes 2 6 221 Current limit 160 Yes Yes 1 6 223...

Страница 159: ... 0 5 327 Pulse ref FB 5000 Hz Yes 0 7 341 Term 46 digital output Control ready Yes 0 5 342 Term 46 Max pulse output 5000 Hz Yes 0 6 343 Precise stop function Normal ramp stop Yes 0 5 344 Counter value 100000 pulses Yes 0 7 349 Speed comp delay 10 ms Yes 3 6 4 Setup Yes means that the parameter can be programmed individually in each of the four Setups i e one single parameter can have four differen...

Страница 160: ...1 6 421 Speed PID lowpass filter 20 ms Yes 3 6 423 U1 voltage par 103 Yes 1 6 424 F1 frequency Par 104 Yes 1 6 425 U2 voltage par 103 Yes 1 6 426 F2 frequency par 104 Yes 1 6 427 U3 voltage par 103 Yes 1 6 428 F3 frequency par 104 Yes 1 6 437 Proc PID no inv Normal Yes 0 5 438 Proc PID anti wind Active Yes 0 5 439 Proc PID start frequency Par 201 Yes 1 6 440 Proc PID start proportional ampl 0 01 Y...

Страница 161: ...scaling No 1 3 520 Data readout Motor current No 2 7 521 Data readout Torque No 1 3 522 Data readout Power kW No 1 7 523 Data readout Power HP No 2 7 524 Data readout Motor voltage V No 1 6 525 Data readout DC Link voltage No 0 6 526 Data readout Motor thermal load No 0 5 527 Data readout Inverter thermal load No 0 5 528 Data readout Digital input No 0 5 529 Data readout Analogue input term 53 No ...

Страница 162: ...No 0 9 632 Nameplate BMC software identification No 0 9 634 Nameplate Unit identification for communication No 0 9 635 Nameplate Software parts no No 0 9 640 Software version No 2 6 641 BMC software identification No 2 6 642 Power card identification No 2 6 700 Used for wobble function please see MI28J2xx 4 Setup Yes means that the parameter can be programmed individually in each of the four Setup...

Страница 163: ...67 Control cable 42 Control cables 1 Control cables 53 Control keys 29 control panel 29 Control principle 6 Control terminals 1 Control unit 11 Control unit 1 Control word 2 Control Word 2 Counter stop via terminal 33 57 Counter value 93 Current limit 82 Current minimum value 75 D Data Character byte 113 Data readout 126 DC brake time 72 DC brake voltage 74 DC Braking 2 DC hold voltage 75 Derating...

Страница 164: ...76 Galvanic Isolation PELV 2 H Hand Auto 1 Hand operation 66 Handling of references 2 Harmonics 2 High voltage test 42 High voltage warning 1 High voltage warning 42 I Initialise 131 Integration 41 IT mains 50 J Jog frequency 81 Jog ramp time 80 L Language 59 Large display readout 61 LC filter 14 LCP 1 LCP copy 61 Leakage reactance 75 Literature 155 Load compensation 74 Load sharing 1 Local refere...

Страница 165: ...Protections 6 Protocol 128 Protocols 111 Pulse reference feedback 92 Pulse start stop 55 Q Quick menu 30 Quick menu 30 QUICK MENU 29 Quick Menu setup 66 Quick menu userdefined 66 Quick stop ramp down time 81 R Ramp type 79 Ramp down time 80 Ramp up time 80 Rated motor speed 68 RCD 51 RCD relays 42 Reference 98 Reference function 82 Reference 79 Regulators 97 Relative 82 Relay connection 1 Relay ou...

Страница 166: ...egram Profile 125 Telegram Structure 111 Telegram Traffic 111 Temperature dependent switch frequency 2 Terminal 42 90 Terminal 46 92 Terminal 53 88 Terminal 60 88 Terminal cover 38 Terminals 55 The differentiator 98 Thermal motor protection 72 Thermistor 73 Thermistor 87 Tightening Torque Power Terminals 1 Time out 89 Torque characteristic 67 U U f ratio 74 UL Standard 2 V Variable torque 67 Vibra...

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