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Motor overload protection

The electronic thermal relay (ETR) in UL listed VLTs
provides Class 20 motor overload protection in ac-
cordance with the NEC in single motor applications
when parameter 128 is set for "ETR TRIP" and pa-

rameter 105 

 Motor current

 is set for the rated motor

current.

  

Warning

It can be extremely dangerous to touch the electrical parts, even when the line supply has been disconnected.
Also ensure that other voltage inputs are disconnected from load sharing through the DC bus.
Wait at least 4 minutes after the input power has been removed before servicing the drive.

VLT

®

 2800 Series

MG.27.A2.22 - VLT

®

 is a registered Danfoss trademark 

 5

In

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 to 

VLT 2

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Содержание VLT 2800 Series

Страница 1: ...mal protection 19 Parallel connection of motors 19 Motor cables 19 Brake connection 20 Ground connection 20 Load sharing 20 Tightening Torque Power Terminals 21 Calculation of brake resistance 21 Access to control terminals 21 Electrical installation control circuitry 21 Tightening torques control cables 22 Electrical installation control terminals 22 Relay connection 23 VLT Software Dialog 23 Con...

Страница 2: ... 98 Warnings alarm messages 98 Warning words extended status words and alarmwords 102 Special conditions 103 Extreme environments 103 Galvanic Isolation PELV 103 UL Standard 104 General technical data 105 Technical data mains supply 1 x 220 240 V 3 x 200 240V 110 Technical data mains supply 3 x 380 480 V 111 Available literature 112 Supplied with the unit 112 VLT 2800 Series 2 MG 27 A2 22 VLT is a...

Страница 3: ...parameter 640 Warning It can be extremely dangerous to touch the electrical parts even when the line supply has been disconnected Also ensure that other voltage inputs are disconnected from load sharing through the DC bus Wait at least 4 minutes after the input power has been removed before servicing the drive VLT 2800 Series MG 27 A2 22 VLT is a registered Danfoss trademark 3 Introduction to VLT ...

Страница 4: ...rotection against motor overload is not in cluded in the factory setting If this function is required set parameter 128 Motor thermal protection to data value ETR trip or data value ETR warning For the North American market The ETR functions provide overload protec tion of the motor class 20 in accordance with NEC 6 Do not remove either the plugs for the motor or line supply while the adjustable f...

Страница 5: ...otor current is set for the rated motor current Warning It can be extremely dangerous to touch the electrical parts even when the line supply has been disconnected Also ensure that other voltage inputs are disconnected from load sharing through the DC bus Wait at least 4 minutes after the input power has been removed before servicing the drive VLT 2800 Series MG 27 A2 22 VLT is a registered Danfos...

Страница 6: ...T 2805 2815 380 480 Volt The drawing below gives the mechanical dimensions of VLT 2822 3 HP 200 240 Volts and VLT 2822 2840 3 5 HP 380 480 Volts All dimensions are in inches 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 82 380 480 V VLT 2800 Series 6 MG 27 A2 22 VLT is a registered Danfoss tr...

Страница 7: ...5N3103 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 VLT 2800 Series MG 27 A2 22 VLT is a registered Danfoss trademark 7 Installation ...

Страница 8: ...LT 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 VLT 2800 Series 8 MG 27 A2 22 VLT is a registered Danfoss trademark ...

Страница 9: ...192H4720 192H4893 VLT 2800 Series MG 27 A2 22 VLT is a registered Danfoss trademark 9 Installation ...

Страница 10: ...applicable derating The requirements that apply to enclosures and remote mounting must be complied with to avoid serious injury or equipment damage especially when installing large units Enclosures In the USA and some other countries a NEMA 1 ter minal cover enclosing terminal connectors is required if the drive is not installed within another enclosure Spacing for mechanical installation All unit...

Страница 11: ...l earthing SYSTEMs to ensure the lowest possible conductor impedance The lowest possible conductor impedance is achieved by keeping the con ductor as short as possible and by grounding with the greatest possible surface area If multiple drives are installed in a cabinet the cabinet backplate which must be made of metal should be used as a joint earth reference plate The drives must be fitted to th...

Страница 12: ...amps 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 variable frequency drive Use starwashers and galvanically conductive installation plates Do not use unshielded unarmoured motor cables in the installation cabinets The illustration below shows EMC correct electrical in stallation in which the vari...

Страница 13: ...rease shield impedance at higher frequencies 3 Protection with respect to ground poten tial between the PLC and VLT If the ground potential between the VLT ad justable frequency drive and the PLC etc is different electric noise may occur that will disturb the whole system This problem can be solved by fitting an equalizing cable next to the control cable Minimum cable cross section 0 025 in 2 16 m...

Страница 14: ...Diagram Integrated 1A RFI filter and brake is an option VLT 2803 2815 200 240 V is not supplied with in termediate circuit coils VLT 2800 Series 14 MG 27 A2 22 VLT is a registered Danfoss trademark ...

Страница 15: ...nstallation 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 VLT 2800 Series MG 27 A2 22 VLT is a registered Danfoss trademark 15 Installation ...

Страница 16: ...855 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 VLT 2800 Series 16 MG 27 A2 22 VLT is a registered Danfoss trademark ...

Страница 17: ...es 200 240 V drives VLT 2800 Bussmann E52273 Bussmann E4273 Bussmann E4273 SIBA E180276 Little Fuse E81895 Ferraz Shawmut E163267 E2137 Ferraz Shawmut E163267 E2137 RK1 JDDZ J JDDZ T JDDZ RK1 JDDZ RK1 JDDZ CC JDDZ RK1 JDDZ 2803 2822 KTN R20 JKS 20 JJN 20 5017906 02 0 KLS R20 ATM R25 A6K 20R 2840 KTN R25 JKS 25 JJN 25 5017906 02 5 KLS R25 ATM R20 A6K 25R AC line connection All drives that are equip...

Страница 18: ...minal 99 No 96 97 98 Motor voltage 0 100 of line voltage U V W 3 wires of motor U1 W2 V1 U2 W1 V2 6 wires out of motor Delta con nected U1 V1 W1 6 wires out of motor Star con nected U2 V2 W2 to be interconnec ted separately optional termi nal block No PE Ground connection See Technical data for correct dimensioning of cable cross section VLT 2800 Series 18 MG 27 A2 22 VLT is a registered Danfoss t...

Страница 19: ...ise at the start and at low rpm values if the motor sizes are widely different This is because the small motors relatively high ohmic resistance in the stator calls for a higher voltage at the start and at low rpm values In systems with motors connected in parallel the elec tronic thermal relay ETR of the adjustable frequency drive cannot be used as motor protection for the indi vidual motor For t...

Страница 20: ...ch the brake torque Ground connection Since the leakage currents to ground may be higher than 3 5 mA the adjustable frequency drive must al ways be connected to ground in accordance with ap plicable national and local regulations To ensure that the ground cable has good mechanical connection to terminal 95 the cable cross section must be a mini mum 7 AWG 10 mm2 To improve protection even further a...

Страница 21: ...1 for applications with an electromagnetic brake When the output frequency exceeds the brake cut out value set in par 138 the brake is released if the motor current exceeds the preset value in parameter 140 When stopping the brake is engaged when the output frequency is less than the brake engaging frequency which is set in par 139 If the variable frequency drive is placed at alarm status or in an...

Страница 22: ...ecause of noise transmitted from the AC line It may be nec essary to break the shield and insert a 100 μF capac itor between the shield and the chassis Tightening torques control cables Control wires must be connected with a tightening tor que of 0 22 0 25 Nm Electrical installation control terminals See section entitled Grounding of shielded armored control cables in the VLT 2800 Design Guide for...

Страница 23: ... 01 03 1 3 break normally closed NOTE 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 drawing Profibus DIP switches setting The dip switch is only on the control card with Profibus DP communication The switch position shown is the factory setting Switches 1 and ...

Страница 24: ... input Pulse start 8 Par 303 Digital input Stop inverted 6 Par 304 Digital input Coasting stop inver ted 2 Par 305 Digital input Jog 13 Speed up slow down Speed up slow 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 Slow down 17 Potentiometer reference Voltage reference via a potentiometer P...

Страница 25: ...Par 314 Analog input Feedback 2 Par 315 Terminal 60 min scaling 4 mA Par 316 Terminal 60 max scaling 20 mA VLT 2800 Series MG 27 A2 22 VLT is a registered Danfoss trademark 25 Installation ...

Страница 26: ...ters 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 variable frequency drive after a trip Can be selected as Active 1 or Not active 0 via pa rameter 01...

Страница 27: ...ows that in parameter 128 Motor thermal protection the selection made is Thermistor trip 2 Quick menu Using the QUICK MENU key it is possible to access the 12 most important parameters of the adjustable frequency drive After programming the adjustable frequency drive is in most cases ready for operation When the QUICK MENU key is activated in Display mode the Quick menu starts Scroll through the q...

Страница 28: ...and dashes will move from left to right in the data value field 3 When 107 appears once more with the data value 0 AMT is complete Press STOP RESET to save the motor data 4 107 will then continue to flash with the data value 0 You can now proceed NOTE VLT 2880 2882 do not have AMT func tion VLT 2800 Series 28 MG 27 A2 22 VLT is a registered Danfoss trademark ...

Страница 29: ...quency x parameter 008 Hand Auto During normal operation the adjustable frequency drive is in auto mode where the reference signal is given externally analog or digital via the control ter minals However in hand mode it is possible to give the reference signal locally via the control panel On the control terminals the following control signals will remain active when hand mode is activated Hand St...

Страница 30: ...d The table in Warnings alarms messages in this manual explains the various warnings and alarms and whether a fault locks the adjustable frequency drive After a Trip locked fault cut off the AC line supply and correct the fault Then reconnect the AC line supply and press the STOP RESET key The adjustable frequency drive is now reset and ready See Warnings alarms messages in this manual for more de...

Страница 31: ...mored cable or a 80 ft 25 m screened armored cable and a motor cable with a rated cross section If a cable with a larger cross section is required it is recommended to reduce the output current by 5 for each step that the cable cross section is increased Increased cable cross section leads to increased capacitance to ground and thus to an increased ground leakage current VLT 2800 start up Pre inst...

Страница 32: ...nd output pow er wiring for correct location Setting up drive for motor start Ensure that all warnings provided in this manual have been adhered to Apply power to the unit Enter motor nameplate data into drive through Quick Menu 1 Parameter 102 MOTOR POWER in kW See conversion table in parameter 102 Mo tor Power in this manual 2 Parameter 103 MOTOR VOLTAGE 3 Parameter 104 MOTOR FREQUENCY 4 Paramet...

Страница 33: ... the digital inputs see parameter 013 Local control 2 the STOP RESET and JOG keys on the condition that these are active 3 the FWD REV key 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 direction...

Страница 34: ...ter 004 Active Set up Description of choice Factory Set up 0 contains the factory set data and can be used as a source of data if the other set ups are to be reset to a known status Set up 1 4 1 4 consists of individual set ups that can be programmed freely during operation If Active Set up 5 is selected the programming set up will be equal to parameter 004 Active Set up NOTE If data is modified o...

Страница 35: ...on number see parameter 626 Database identification no 008 Display scaling of output frequency FREQUENCY SCALE Value 0 01 100 00 1 00 Function In this parameter the factor is selected by which the output frequency is to be multiplied The value is shown in the display provided parameters 009 012 Display readout have been set to Output frequency x scaling 5 Description of choice Set the required sca...

Страница 36: ...s the present power that the motor is absorbing in HP Motor voltage V gives the voltage supplied to the mo tor DC link voltage V gives the intermediate circuit voltage of the adjustable frequency drive Thermal load motor gives the calculated estimated load on the motor 100 is the cut out limit Thermal load gives the calculated estimated ther mal load on the adjustable frequency drive 100 is the cu...

Страница 37: ...e parameter 009 Large display readout 012 Small display readout 1 3 DISPLAY LINE 1 3 Value See parameter 009 Large display readout Feedback unit 3 Function See the functional description given under parameter 010 Small display readout Description of choice See parameter 009 Large display readout 013 Local control LOC CTRL CONFIG Value Local not active DISABLE 0 Local control and open loop without ...

Страница 38: ...ntrol as parameter 100 4 the present reference will be maintained If the reference signal is negative the local reference will be set to 0 Shifting from Local operation to Remote operation in parameter 002 Local remote operation while this pa rameter has been set to Remote operation The local reference will be replaced by the remote operated ref erence signal 014 Local stop LOCAL STOP Value Not ac...

Страница 39: ...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 adjust able frequency drive is to start using the local refer ence set in parameter 003 Local reference and the start stop state given...

Страница 40: ...e 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 NOTE 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 parame...

Страница 41: ...d 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 2 Variable torque medium torque med 3 Variable torque high torque high 4 Variable torque low with CT start VT LOW CT START 5 Variable torque medium with CT start VT ...

Страница 42: ...er the factory setting are possible North American HP to kW Conversion Chart HP kW 1 2 0 37 3 4 0 55 1 0 75 1 1 2 1 1 2 1 5 3 2 2 4 3 0 5 4 7 1 2 5 5 10 7 5 103 Motor voltage UM N MOTOR VOLTAGE Value For 200 V units 50 999 V 230 V For 400 V units 50 999 V 400 V Function This is where to set the rated motor voltage Description of choice Select a value that corresponds to the nameplate data on the m...

Страница 43: ...e display if faults arise during tuning of the motor See Warnings alarms messages in this manual As a rule the AMT function can measure the RS values for motors that are 1 2 sizes larger or smaller than the adjustable frequency drive s nominal size If you wish to interrupt automatic motor tun ing press the STOP RESET key NOTE AMT may not be performed on motors connected in parallel nor may setup c...

Страница 44: ...ctory settings of XS which the ad justable frequency drive itself chooses on the basis of the motor nameplate data 117 Resonance damping resonance damping Value OFF 100 OFF 100 Off OFF Function It is possible to optimize 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 D...

Страница 45: ...1 to energize the motor with a DC brake voltage during the start de lay time Set voltage in parameter 132 DC brake volt age Choose Coasting during start delay time 2 and the motor will not be controlled by the adjustable frequen cy drive 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 ...

Страница 46: ...quired output frequency NOTE If parameter 123 is set higher than param eter 130 then the start delay function pa rameter 120 and 121 will be skipped NOTE If parameter 123 is set too high and DC hold has been chosen in parameter 122 the output frequency will jump to the value in parameter 123 without ramping up This may cause an overcurrent warning alarm 126 DC brake time DC BRAKING TIME Value 0 60...

Страница 47: ...if you want a warning when the motor is overloaded according to the calculations You can also program the adjustable frequency drive to give a warning signal via one of the digital outputs Select ETR Trip 1 4 if you want a trip when the motor is overloaded according to the calculations NOTE This function cannot protect the individual motors in the case of motors linked in par allel 130 Start frequ...

Страница 48: ...n be obtained by increasing the start voltage Small motors 1 0 HP normally require a high start voltage Description of choice The factory setting will be suitable for must applica tions the value may need to be increase gradually for high torque application Warning If the use of start voltage is ex aggerated this may lead to over energiz ing and overheating of the motor and the variable frequency ...

Страница 49: ...tic Description of choice Key in a value 137 DC hold voltage DC HOLD VOLTAGE Value 0 100 of max DC hold voltage 0 Function This parameter is used to keep the motor holding tor que at start stop Description of choice This parameter can only be used if a selection has been made of DC hold in parameter 121 Start func tion or 122 Function at stop To be set as a percentage value of the max DC hold volt...

Страница 50: ...ically switched on and off You can also set the internal fan to be permanently switched on or off Description of choice If Automatic 0 is selected the internal fan is switched on or off depending on the ambient temperature and the loading of the adjustable frequency drive If Always switched on 1 or Always switched off 2 is selected the internal fan will be permanently switched on or off respective...

Страница 51: ...to the same starting point each time a new process commences Description of choice Select reset 1 when running unique processes each time they arise This will enable repetitive precision when stopping to be improved Select Off 0 for ex ample for lifting lowering operations or synchronous motors It is an advantage that the motor and the var iable frequency drive are always synchronized VLT 2800 Ser...

Страница 52: ...nimum frequency is of no significance 201 Output frequency low limit fMIN MIN OUTPUT FREQ Value 0 0 fMAX 0 0 Hz Function In this parameter a minimum motor frequency limit can be selected 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 ...

Страница 53: ... 100 Configuration Unit Open loop 0 Hz Speed reg closed loop 1 rpm Process reg closed 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...

Страница 54: ...N parameter 104 Motor fre quency f M N to 0 Hz provided no overvoltage arises in the inverter because of generating operation of the motor Description of choice Set the required ramp down time 209 2 Ramp up time 2 Ramp up time Value 0 02 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...

Страница 55: ...the Jog function is activated Jog can be activa ted via the digital inputs serial communication or via the LCP control panel on the condition that this is ac tive in parameter 015 Local jog Description of choice Set the required frequency 214 Reference function Ref function Value Sum sum 0 Relative relative 1 External preset external preset 2 Function It is possible to define how preset references...

Страница 56: ...og references pulse reference and any references from serial communication Description of choice If Catch up is active via a digital input the percentage value in parameter 219 Catch up Slow down refer ence will be added to the remote controlled reference If Slow down is active via a digital input the percentage value in parameter 219 Catch up Slow down refer ence will be deducted from the remote ...

Страница 57: ...n 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 reached the resulting reference The signal outputs can be programmed to give a warning signal via ter minal 46 and via the relay output Description of choice The lower signal limit of the output fre...

Страница 58: ...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 Minimum feedback FBMIN and 415 Max imum feedback FBMAX 229 Frequency bypass bandwidth FREQ BYPASS B W Value...

Страница 59: ... 23 23 23 Preset reference on PRESET REFERENCE ON 24 24 24 24 24 Thermistor THERMISTOR 25 25 25 25 Precise stop inverse PRECISE STOP INV 26 26 Precise start stop PRECISE START STOP 27 27 Pulse reference PULSE REFERENCE 28 Pulse feedback PULSE FEEDBACK 29 Pulse input PULSE INPUT 30 Selection of Set up lsb SET UP SELECT LSB 31 31 31 31 31 Selection of Set up msb SET UP SELECT MSB 32 32 32 32 32 Rese...

Страница 60: ...start if a pulse is applied for at least 14 ms the adjustable frequency drive will start the motor pro vided no stop command has been given The motor can be stopped by briefly activating Stop inverse Reversing is used for changing the direction of rotation of the motor shaft Logic 0 will not lead to reversing Logic 1 will lead to reversing The reverse signal only changes the direction of rotation ...

Страница 61: ... to ramp 1 and logic 1 leads to ramp 2 Preset reference lsb and Preset reference msb makes it possible to select one of the four preset references see the table below Preset ref msb Preset ref lsb Function 0 0 Preset ref 1 0 1 Preset ref 2 1 0 Preset ref 3 1 1 Preset ref 4 Preset reference on is used for shifting between a re mote controlled reference and a preset reference It is assumed that Exte...

Страница 62: ...is made in parameter 309 Terminal 53 min scaling and parameter 310 Terminal 53 max scaling Description of choice No function 0 Is selected if the adjustable frequency drive is not to react to signals connected to the termi nal Reference 1 If this function is selected the ref erence can be changed by means of an analog reference signal If reference signals are connected to more than one input these...

Страница 63: ...this function is chosen see Wobble Instruction MI28JXYY for fur ther information 315 Terminal 60 Min scaling AI 60 SCALE LOW Value 0 0 20 0 mA 4 0 mA Function In this parameter you can set the signal value that will correspond to the minimum reference or minimum feedback parameter 204 Minimum reference RefMIN 414 Minimum feedback FBMIN Description of choice Set the required current value If the Ti...

Страница 64: ...4 20 mA 6 Output current 0 IINV 0 20 mA 0 iinv 0 20 mA 7 Output current 0 IIINV 4 20 mA 0 iinv 4 20 mA 8 Output power 0 PM N 0 20 mA 0 Pnom 0 20 mA 9 Output power 0 PM N 4 20 mA 0 Pnom 4 20 mA 10 Inverter temperature 68 212 F 20 100 C 0 20 mA TEMP 20 100 C 0 20 mA 11 Inverter temperature 68 212 F 20 100 C 4 20 mA TEMP 20 100 C 4 20 mA 12 Function The analog output can be used for stating a process...

Страница 65: ...BLOW par 227 above feedback low 15 Feedback lower than FBHIGH par 228 under feedback high 16 Relay 123 RELAY 123 17 Reversing REVERSE 18 Thermal warning THERMAL WARNING 19 Local operation LOCAL MODE 20 Out of frequency range par 225 226 out of freq range 22 Out of current range out of current range 23 Out of feedback range out of fdbk range 24 Mechanical brake control Mech brake control 25 Control...

Страница 66: ...on Local operation 1 has been selected Out of the frequency range the output frequency is out of the programmed frequency range in parameters 225 and 226 Out of the current range the motor current is out of the programmed range in parameters 223 and 224 Out of the feedback range the feedback signal is out of the programmed range in parameters 227 and 228 Mechanical brake control enables you to con...

Страница 67: ...Hz corresponds to a heatsink temperature of less than 68 F 20 C and 20 mA corresponds to 212 F 100 C NOTE Output terminal 46 is not available on De viceNet Minimum output frequency at fre quency output 16 Hz 342 Terminal 46 max pulse scaling DO 46 MAX PULS Value 150 10000 Hz 5000 Hz Function This parameter is used for setting the pulse output sig nal s maximum frequency Description of choice Set t...

Страница 68: ...e 0 999999 100 000 pulses Function In this parameter you can select the counter value to be used in the integrated precise stop function pa rameter 343 Description of choice The factory setting is 100 000 pulses The highest fre quency max resolution that can be registered at terminal 33 is 67 6 kHz 349 Speed comp delay SPEED COMP DELAY Value 0 ms 100 ms 10 ms Function In this parameter the user ca...

Страница 69: ...Function This parameter makes it possible to select whether re set and restart after a trip are to be manual or whether the adjustable frequency drive is to be reset and re started 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 Automatic restart time Description of choice If Manual reset 0 is...

Страница 70: ...d auto matically as a function of the load See Temperature Dependent Switching Fre quency under Special Conditions When LC filter connected is selected in parameter 412 the minimum switching frequency is 4 5 kHz 412 Variable switching frequency Var carrier freq Value Without LC filter WITHOUT LC FILTER 2 LC filter connected LC filter connected 3 Function The parameter must be set to LC filter conn...

Страница 71: ...c PULSE SEC 6 Units sec UNITS SEC 7 Units min UNITS MIN 8 Units h Units h 9 C C 10 Pa pa 11 l s l s 12 m3 s m3 s 13 l min l min 14 m3 min m3 min 15 l h l h 16 m3 h m3 h 17 kg sec kg sec 18 kg min kg min 19 kg hour kg h 20 tons min T min 21 tons hour T h 22 Meters m 23 Nm nm 24 m sec m sec 25 m min m min 26 F F 27 In wg in wg 28 gal sec gal sec 29 ft3 sec ft3 sec 30 gal min gal min 31 ft3 min ft3 m...

Страница 72: ...long to regulate if an error has occurred 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 Descrip...

Страница 73: ...e at 0 Hz is set in parameter 133 Start voltage Description of choice Set 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 frequency 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 4...

Страница 74: ...frequency in case the feedback signal increases se lect Normal 0 If the adjustable frequency drive is to increase the output frequency in case the feedback signal increases select Inverse 1 438 Proces PID anti windup proc anti windup Value Not active DISABLE 0 Active ENABLE 1 Function It is possible to select whether the process regulator is to continue regulating on a deviation even if it is not ...

Страница 75: ...R T Value 0 01 9999 99 OFF OFF Function The integrator provides an increasing gain at a con stant error between the reference setpoint and the feedback signal The greater the error the quicker the integrator frequency contribution will increase The in tegral time is the time needed by the integrator to make the same change as the proportional gain Description of choice Quick regulation is obtained...

Страница 76: ...ecause of a mains drop out The function is activated each time a start command is enabled For the adjustable frequency drive to be able to catch the rotating motor shaft the motor speed must be lower than the frequency that corresponds to the frequency in parameter 202 Output frequency high limit f MAX Description of choice Select Disable 0 if this function is not required Select OK same direction...

Страница 77: ...fect the extended status word Description of choice Select Enable 1 to enable the readout in the display if warning 33 Out of frequency range occurs Select Disable 0 to disable the readout in the display if warn ing 33 Out of frequency range occurs 456 Brake Voltage Reduce BRAKE VOL REDUCE Value 0 25 V if 200 V device 0 0 50 V if 400 V device 0 Function The user sets the voltage by which the level...

Страница 78: ...al For example this is used when flow volume regulation is required on the basis of pres sure as feedback signal flow constant x pressure This conversion makes it possible to set the reference in such a way that there is a linear con nection between the reference and the flow required Description of choice If Linear 0 is selected the feedback signal and the feedback value will be proportional If S...

Страница 79: ...ust 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 adjustable frequency drive is running at maximum frequency parameter 202 Output frequency high l...

Страница 80: ...bles Enhanced sleep mode Note In parameter 463 Boost set point it is possible to set up the adjustable frequency drive 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 increa...

Страница 81: ...arameter 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 8 for fin...

Страница 82: ... dry run trip and will need a manual reset 484 Initial ramp INITIAL RAMP Value OFF 000 1s 360 0 s OFF Function Allows the motor equipment to be brought up to mini mum speed frequency at a rate different than the normal ramp up rate param 207 Description of choice For example vertical pumps and other equipment of ten have a requirement to not operate below a mini mum speed any longer than necessary...

Страница 83: ... set in parameter 485 Fill Rate can be supplied by the system engineer from proper calcula tion or from experience or it can be determined ex perimentally by performing 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 prev...

Страница 84: ...1 Baudrate cannot be selected via the serial port 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 adjustable frequency drive via the digital inputs and or via the serial port If Serial port 1 is selec...

Страница 85: ...Function 0 0 Quick stop 0 1 Motor running 1 0 Motor running 1 1 Motor running Logic or 3 Dig input Serial port Function 0 0 Quick stop 0 1 Quick stop 1 0 Quick stop 1 1 Motor running 504 DC brake DC BRAKE SELECT Value Digital input DIGITAL INPUT 0 Serial port SERIAL PORT 1 Logic and LOGIC AND 2 Logic or LOGIC OR 3 Function See function description for parameter 502 Coasting stop Description of cho...

Страница 86: ...1 Start 1 0 Stop 1 1 Start Logic and 2 Dig input Ser port Function 0 0 Stop 0 1 Stop 1 0 Stop 1 1 Start Logic or 3 Dig input Ser port Function 0 0 Stop 0 1 Start 1 0 Start 1 1 Start 506 Reverse REVERSE SELECT Value Digital input DIGITAL INPUT 0 Serial port SERIAL PORT 1 Logic and LOGIC AND 2 Logic or LOGIC OR 3 Function See function description for parameter 502 Coasting stop Description of choice...

Страница 87: ...nput 0 Setup msb Setup lsb Function 0 0 Setup 1 0 1 Setup 2 1 0 Setup 3 1 1 Setup 4 Serial communication 1 Setup msb Setup lsb Function 0 0 Setup 1 0 1 Setup 2 1 0 Setup 3 1 1 Setup 4 Logic and 2 Bus Set up msb Bus Set up lsb Dig Set up msb Dig Set up lsb Setup no 0 0 0 0 1 0 0 0 1 1 0 0 1 0 1 0 0 1 1 1 0 1 0 0 1 0 1 0 1 2 0 1 1 0 1 0 1 1 1 2 1 0 0 0 1 1 0 0 1 1 1 0 1 0 3 1 0 1 1 3 1 1 0 0 1 1 1 0...

Страница 88: ... profiles 513 Bus time interval BUS TIMEOUT TIME Value 1 99 sec 1 sec Function In this parameter it is possible to preset the maximum time expected to elapse between receipt of two con secutive telegrams If this time is exceeded the serial communication is assumed to have stopped and the desired reaction is preset in parameter 514 Bus time interval function Description of choice Preset the require...

Страница 89: ... Function These parameters can be read out via the serial com munication port and the LCP display See also param eters 009 012 Display readout NOTE Parameters 515 541 can only be read out via an LCP control unit Description of choice Resulting reference parameter 515 Gives the resulting reference as a percentage in the range from Minimum reference RefMIN to Maximum reference RefMAX See also Dealin...

Страница 90: ...munication for the VLT 2800 Bus feedback 1 parameter 535 Allows writing of a bus feedback value which will then form part of the feedback handling Inverter temperature parameter 537 Gives the present inverter temperature on the adjust able frequency drive The cut out limit is 90 100 C with cut back in at 70 5 C Alarm word parameter 538 Gives in Hex code which alarm is on the adjustable frequency d...

Страница 91: ...re 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 Value 10 ms 2000 ms 100 ms Function This parameter determines the maximum amount of time that the drive s Modbus RTU will wait between characters that are sent by the master controller When this amount of time expires the driv...

Страница 92: ...d 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 VLT 2800 Series 92 MG 27 A2 22 VLT is a registered Danfoss trademark ...

Страница 93: ...the number of overtemperature faults that have been registered on the adjustable frequency drive s heatsink Parameter 605 Number of overvoltages gives the number of overvoltages of the intermediate circuit voltage in the adjustable frequency drive This is only counted when Alarm 7 Overvoltage is active NOTE Parameters 615 617 Fault log cannot be read out via the integral control unit 615 Fault log...

Страница 94: ...d via serial communication NOTE When the 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 Initialize INITIALIZE 3 Function In addition to its normal function this parameter can be used to test the control card There is also the opportunity to perform an initialization at the factory...

Страница 95: ...e test is OK Remove the test connector and the adjustable frequency drive is ready for operation Parameter 620 Operating mode is automatically set to Normal operation 0 Initialization 3 is selected if you wish to use the unit s factory setting Procedure for initialization 1 Select Initialization 3 2 Disconnect the AC line voltage and wait until the light in the display has disappeared 3 Connect th...

Страница 96: ...e 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 adjustable frequency drive Parameter 630 Nameplate Communication option type Here you can see ...

Страница 97: ...sion PROFIBUS 12 MB Ver 3 Function This parameter enables a configuration of a Profibus control card The default value depends on the pro duced unit which is also the maximum obtainable value This means that a control card can only be downgraded to a lower performance version VLT 2800 Series MG 27 A2 22 VLT is a registered Danfoss trademark 97 Programming ...

Страница 98: ... drive will be ready to start operation again No Description Warning Alarm Trip locked 2 Live zero error LIVE ZERO ERROR X X X 4 Line phase loss LINE PHASE LOSS X X X 5 Voltage warning high DC LINK VOLTAGE HIGH X 6 Voltage warning low DC LINK VOLTAGE LOW X 7 Overvoltage DC LINK OVERVOLT X X X 8 Undervoltage DC LINK UNDERVOLT X X X 9 Inverter overload INVERTER TIME X X 10 Motor overloaded MOTOR TIM...

Страница 99: ...m 7 WARNING ALARM 8 Undervoltage If the intermediate circuit voltage UDC is lower than the inverter s Undervoltage limit the inverter will be switched off until the UDC once more goes above the undervoltage limit If the UDC remains under the un dervoltage limit the inverter will trip after a set time The time depends on the device and is set at 2 15 sec An undervoltage can occur when the connected...

Страница 100: ...ached Output frequency low limit parameter 201 or Output frequency high limit parameter 202 If the ad justable frequency drive is in Process regulation closed loop parameter 100 the warning will be active in the display If the adjustable frequency drive is in another mode than Process regulation closed loop bit 008000 Out of frequency range in extended status word will be active but there will not...

Страница 101: ...r the relevant setup ALARM 52 AMT missing motor phase The AMT function has detected a missing motor phase ALARM 55 AMT timeout Calculations are taking too long possibly due to noise on the motor cables ALARM 56 AMT warning during AMT A adjustable frequency drive warning is given while AMT is being performed WARNING 99 Locked See parameter 18 Alarm warning limits Without brake With brake Without br...

Страница 102: ...000 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 Hex Alarm words 0...

Страница 103: ...al parts or corrosion Too many dust particles are typically observed on top of cabinets Indication of aggressive gases in the air are black copper rails and cable ends on existing electrical installations Galvanic Isolation PELV PELV Protective Extra Low Voltage insulation is ach ieved by inserting galvanic isolators between the con trol circuits and circuits that are connected to the line power p...

Страница 104: ...0 Vrms between phase and ground In order to maintain PELV all connections made to the control terminals must be PELV For example the thermistor must be reinforced double insulated UL Standard This device is UL approved VLT 2800 Series 104 MG 27 A2 22 VLT is a registered Danfoss trademark ...

Страница 105: ...es 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 Torque characteristic Variab...

Страница 106: ...oltage on input 28 VDC 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 107: ...er 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 outp...

Страница 108: ... 1000 Hz Repeat accuracy of 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 o...

Страница 109: ...70 C The frequency converter is protected against short circuits on motor terminals U V W If an electrical phase is missing the variable frequency drive will cut out Monitoring of the intermediate circuit voltage ensures that the variable frequency drive cuts out if the intermediate circuit voltage is too low or too high The variable frequency drive is protected against ground fault on motor termi...

Страница 110: ...10 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 sectio...

Страница 111: ...aft 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 96 96 97 97 97 Power loss at 10...

Страница 112: ...ature for VLT 2800 Design Guide MG 27 EX YY Data sheet MD 27 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 VLT 2800 Series 112 MG 27...

Страница 113: ... 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 parameter can have four diff...

Страница 114: ...function 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 13...

Страница 115: ...es 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 Warn Low current ...

Страница 116: ...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 different d...

Страница 117: ...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 Yes 2 6 441 Proc PID integration time Off 9999 99 s Yes 2 7 442 Proc PID differentiation time Off 0 00 s Yes 2 6 443 Proc PID diff ampl limit 5 0 Yes 1 6 444 Proc PID lowpass filter time 0 02 s Yes 2...

Страница 118: ...x 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 N...

Страница 119: ...dentification 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 6 678 Configure control card 700 Used for wobble function please see MI28J2xx 4 Setup Yes means that the parameter can be programmed individually in each of the four Setups i e on...

Страница 120: ...VLT 2800 Series 120 MG 27 A2 22 VLT is a registered Danfoss trademark ...

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