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Parameter description

vacon • 78

Service support: find your nearest Vacon service center at www.vacon.com

4

4.13.2.3

MPPT correction parameters

This algorithm changes the DC voltage reference, to compensate temperature variations (usu-
ally slow) and to correct the error in feed-forward curve.

Correction can be up to +/- 150V.

The correction term is determined by “perturb-and-observe” logic (P&O).

P14.12 P&O

UPDATE

TIME

P14.13 P&O

VOLTAGE

STEP

DC voltage reference is periodically (at intervals defined by P14.12) increased or decreased by
a small value (P14.13). If the variation brings a higher motor power, next variation will follow
the same direction, otherwise it will be reversed.

A short perturb period (P14.12) makes the regulation faster, assuming that the PI gains are not
too low (power variation has to complete within the period).

The correction term can be monitored (V2.2), to help the tuning of reference feed-forward.
When the panels temperature is close to standard, 25°C, the correction term should result
small (+/- 20 to 30V).

The correction decreases towards negative maximum as temperature increases.

The correction term increases towards positive maximum in case of low temperature.

If something different is observed, feed-forward values should be improved.

P14.14 P&O

POWER

VARIATION

P14.14 determines the variation in motor power, above which iteration of voltage reference
change continues in the same direction.

Small value leads to a regulation very close to the maximum of the panel curve, with possible
instability. Higher values lead to a more stable point, but with lower efficiency.

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Содержание 20 CP/X

Страница 1: ...vacon 20 cp x ac drives Solar pump application manual ...

Страница 2: ......

Страница 3: ... Menu PAR G3 21 3 3 4 Group Digital inputs Menu PAR G4 22 3 3 5 Group Digital outputs Menu PAR G5 24 3 3 6 Group Analogue outputs Menu PAR G6 25 3 3 7 Group Supervisions Menu PAR G7 26 3 3 8 Group Motor Control Menu PAR G8 27 3 3 9 Group Protections Menu PAR G9 28 3 3 10 Group Autoreset Menu PAR G10 31 3 3 11 Group Fieldbus Menu PAR G11 32 3 3 12 Group PID Control Menu Par G12 33 3 3 13 Group Sola...

Страница 4: ...vacon 1 5 Fault tracing 82 ...

Страница 5: ...rive from the mains or from the DC input supply wait until the indicators on the keypad go out if no keypad is attached see the indicators on the cover Wait an additional 30 seconds before starting any work on the connections of Vacon 20X Drive After expiration of this time use measur ing equipment to absolutely ensure that no voltage is present Always ensure absence of voltage before starting any...

Страница 6: ...1 vacon 3 Safety ...

Страница 7: ... maximum lower than absolute maximum Features The MPP Tracker controls DC voltage reference in order to find the maximum power The drive can be controlled through I O terminals a fieldbus or the optional keypad Two pro grammable control places and sources for the frequency reference are available for easy lo cal remote control Frequency reference can be direct analogue input preset speeds or field...

Страница 8: ...ogue input common current 6 24Vout 24V aux voltage 7 DIN COM Digital input common 8 DI1 Digital input 1 Start 1 9 DI2 Digital input 2 Start 2 10 DI3 Digital input 3 Fault reset 4 AI2 Analogue input voltage or current def Current PID feedback 5 AI2 GND Analogue input common current 13 DO1 Digital Output Common 14 DI4 Digital input 4 Preset Speed B0 15 DI5 Digital input 5 Ext fault Closed 16 DI6 Dig...

Страница 9: ...vice center at www vacon com 2 Table 2 Connection example Relay terminals Relay terminals Default Terminal Signal 22 RO1 2 CM Relay output 1 READY 23 RO1 3 NO 24 RO1 1 NC Relay output 1 RUN 25 RO1 2 CM 26 RO1 3 NO From Standard I O terminals From term 3 or 5 From term 6 FAULT ...

Страница 10: ...rd is not installed OPTC3 E3 Profibus DPV1 fieldbus board Vacon 20CP X frequency converters can be connected to the PROFIBUS DP network using a fieldbus board The converter can then be controlled monitored and programmed from the Host system OPTE3 option board also supports connection from DP Master class 2 if DP V1 is enabled In this case the Master class 2 can initiate a connection read and writ...

Страница 11: ...frequency converters can be connected to Ethernet using an Ethernet fieldbus board OPTCP Every appliance connected to an Ethernet network has two identifiers a MAC address and an IP address The MAC address Address format xx xx xx xx xx xx is unique to the appliance and cannot be changed The Ethernet board s MAC address can be found on the sticker attached to the board or by using the Vacon IP tool...

Страница 12: ...t allowed to add or replace option boards or fieldbus boards on an AC drive with the power switched on This may damage the boards 1 Open the cover of the drive The relay outputs and other I O terminals may have a dangerous control voltage present even when the drive is disconnected from mains 2 Remove the option slot cover ...

Страница 13: ...slot cover 3 Make sure that the sticker on the connector of the board says dv dual voltage This indicates that the board is compatible with Vacon 20CP X See below NOTE Incompatible boards cannot be installed on Vacon 20CP X Compat ible boards have a slot coding that enable the placing of the board see above Slot coding OPT dv 9116 emf ...

Страница 14: ...vacon 11 Solar pump Application 2 Figure 3 Option board installation 4 Install the option board into the slot as shown in the picture below 5 Mount the option slot cover ...

Страница 15: ...Solar pump Application vacon 12 Service support find your nearest Vacon service center at www vacon com 2 Figure 4 Mounting of option slot cover remove the plastic opening for option board termi nals ...

Страница 16: ...vacon 13 Solar pump Application 2 ...

Страница 17: ... LOC REM keypad and shows the fre quency reference in Local control mode The reference is also active when selected as main reference P1 12 4 or as secondary refer ence P2 15 4 Value is limited between min frequency P1 1 and max frequency P1 2 In Local mode or when keypad is the active control place P1 11 1 or P2 14 1 direction of ro tation is determined with P2 23 or by pressing the left or right...

Страница 18: ...voltage V 7 V1 10 Unit temperature C 8 Heatsink temperature V1 11 Board temperature C 1825 Power board temperature V1 12 Analogue input 1 13 Analogue input AI1 V1 13 Analogue input 2 14 Analogue input AI2 V1 14 Analogue output 26 Analogue output V1 15 DI1 DI2 DI3 15 Digital inputs status V1 16 DI4 DI5 DI6 16 Digital inputs status V1 19 RO1 RO2 DO 17 Digital outputs status V1 21 Process variable 29...

Страница 19: ...ors Code Monitoring value Unit ID Description V2 1 Vmp Ref V 1934 DC voltage reference for MPP regulation V2 2 Vmp Ref correct V 1942 Present correction on DC voltage reference P O oscillation V2 3 Power kW 1936 Motor shaft power V2 4 Energy counter MWh 1935 Counter of energy taken by the supply Table 4 Solar motor values ...

Страница 20: ... Basic settings Group Advanced Settings Menu PAR G2 Advanced parameter settings Group Analogue inputs Menu PAR G3 Analogue input programming Group Digital inputs Menu PAR G4 Digital input programming Group Digital outputs Menu PAR G5 Digital output programming Group Analogue outputs Menu PAR G6 Analogue outputs programming Group Supervisions Menu PAR G7 Prohibit frequencies programming Group Motor...

Страница 21: ...d this value Un on the rating plate of the motor This parameter sets the voltage at the field weaken ing point to 100 UnMotor Note also used connection Delta Star P1 7 Motor nominal frequency 8 00 320 00 Hz 50 00 111 Find this value fn on the rat ing plate of the motor P1 8 Motor nominal speed 24 20000 rpm 1440 112 Find this value nn on the rat ing plate of the motor P1 9 Motor nominal current 0 2...

Страница 22: ...active 1 Auto torque boost P1 16 Show parameters 0 1 0 115 0 only Basic 1 All groups P1 17 Energy counter reset 0 1 0 1933 Value 1 resets energy coun ter V2 4 P1 18 Volume counters reset 0 1 0 1961 Value 1 resets volume coun ters V1 27 and V1 28 Table 6 Basic parameters ...

Страница 23: ...d 2 P2 4 Preset speed 3 0 00 P1 2 Hz 20 00 126 Multistep speed 3 P2 9 Start acceleration time 0 1 3000 0 s 1 0 502 Time from 0 to min fre quency P2 14 Control place 2 0 2 0 1806 Alternative control place 0 I O terminals 1 Keypad 2 Fieldbus P2 15 Frequency reference source 2 0 7 1 1820 Selection of reference source 0 AI1 1 AI2 2 PID reference 3 not used 4 Keypad 5 Fieldbus 6 AI1 AI2 7 Max Frequency...

Страница 24: ... AI2 signal range 0 1 1 390 0 0 10V 0 20mA 1 2 10V 4 20mA P3 6 AI2 custom min 100 00 100 00 0 00 391 See P3 2 P3 7 AI2 custom max 100 00 300 00 100 00 392 See P3 3 P3 8 AI2 filter time 0 0 10 0 s 0 1 389 See P3 4 P3 9 Star signal select 0 1 0 1810 0 AI1 1 AI2 P3 10 Start level 0 00 100 00 10 00 1857 Not scaled analogue signal If P3 10 P3 11 Start below this level If P3 10 P3 11 Start above this le...

Страница 25: ...tions P4 6 Fault reset 0 6 3 414 Resets all active faults P4 7 Run enable 0 6 0 407 Must be on to set drive in Ready state P4 8 Preset speed B0 0 6 4 419 Binary selector for Preset speeds P4 9 Preset speed B1 0 6 0 420 Binary selector for Preset speeds P4 14 Sel control place 2 0 6 0 1813 Activates control place 2 See P4 1 for selections P4 15 Sel freq reference 2 0 6 0 1814 Activates reference 2 ...

Страница 26: ...ital input for water level P4 24 Maximum level logic 0 1 0 1967 Selections for maximum water level logic 0 water level is ok when digital input for Maximum water level is high 1 water level is ok when digital input for Maximum water level is low The drive trips with F64 Max water level when water level is not ok The fault is reset with autoreset logic of Underload see P10 4 7 when level is restore...

Страница 27: ...output 1 off delay 0 00 320 00 s 0 00 459 OFF delay for relay P5 6 Relay output 1 inversion 0 1 0 1804 0 no inversion 1 inverted P5 7 Relay output 2 on delay 0 00 320 00 s 0 00 460 See P5 4 P5 8 Relay output 2 off delay 0 00 320 00 s 0 00 461 See P5 5 P5 9 Exp EO1 output content 0 13 0 1826 Parameter visible when a I O expansion board is installed See P5 1 for selection P5 10 Exp EO2 output conten...

Страница 28: ...Output freq 0 fmax 3 Motor speed 0 Speed max 4 Output current 0 InMotor 5 Motor torque 0 TnMotor 6 Motor power 0 PnMotor 7 PID output 0 100 8 Filedbus 0 10000 P6 2 Analogue output minimum 0 1 0 310 0 0V 1 2V P6 3 Analogue output scale 0 0 1000 0 100 0 311 Scaling factor P6 4 Analogue output filter time 0 00 10 00 s 0 10 308 Filtering time of analogue out put signal 0 No filtering Table 12 Analogue...

Страница 29: ... AI1 1 AI2 P7 5 AnalogIn Supv ON level 0 00 100 00 80 00 357 ON threshold AI supervision P7 6 AnalogIn Supv OFF level 0 00 100 00 40 00 358 OFF threshold AI supervision P7 10 Process Source Select 0 5 2 1036 Selection of variable propor tional to process 0 PID feedback value 1 Output frequency 2 Motor speed 3 Motor torque 4 Motor power 5 Motor current P7 11 Process Val Decim Digits 0 3 1 1035 Deci...

Страница 30: ...raking current 0 3 x IH 2 x IH A IH 507 Defines the current injected into the motor dur ing DC braking 0 Disabled P8 12 DC braking time at stop 0 00 600 00 s 0 00 508 Determines if braking is ON or OFF and the braking time of the DC brake when the motor is stopping P8 13 Frequency to start DC braking at ramp stop 0 10 10 00 Hz 1 50 515 The output frequency at which the DC braking is applied P8 14 ...

Страница 31: ...l protection protects the motor from short time overload situations such as one caused by a stalled shaft The reaction time of the stall protection can be set shorter than that of motor thermal protection The stall state is defined with two parameters P9 5 Stall time and P9 6 Stall frequency limit If the current is as high as the P1 5 Current Limit and the cur rent limiter has reduced the output f...

Страница 32: ... motor is used with the drive the accuracy of the torque calculation decreases If you use long motor cables max 100m together with small drives 1 5 kW the motor current measured by the drive can be much higher than the actual motor current due to capacitive currents in the motor cable Consider this when setting up the motor thermal protection functions Code Parameter Min Max Unit Default ID Descri...

Страница 33: ...4 Motor thermal time constant 1 200 min 45 707 The time constant is the time within which the calculated thermal stage has reached 63 of its final value P9 15 Response to fieldbus fault 0 2 2 733 See P9 3 P9 17 Parameter lock 0 1 0 1805 Lock parameter editing 0 Edit enabled 1 Edit disabled P9 18 Response to STO disable 0 3 1 1876 0 No action 1 Warning 2 Fault not stored in his tory menu 3 Fault st...

Страница 34: ...0 717 Wait time before the first reset is executed P10 3 Automatic reset tries 1 10 5 759 NOTE Total number of trials irrespective of fault type P10 4 Underload reset Time 1 0 1 1200 0 m 2 0 1927 P10 5 Underload reset Time 2 0 1 1200 0 m 30 0 1928 P10 6 Underload reset Time 3 0 1 1200 0 m 300 0 1929 P10 7 Underload Tries T1 T2 1 10 2 1930 Table 16 Autoreset group NOTE Visibility of the group depen...

Страница 35: ...3 FB DataOut 3 Sel 0 17 2 854 Variable mapped on PD3 See P11 1 P11 4 FB DataOut 4 Sel 0 17 3 855 Variable mapped on PD4 See P11 1 P11 5 FB DataOut 5 Sel 0 17 4 856 Variable mapped on PD5 See P11 1 P11 6 FB DataOut 6 Sel 0 17 5 857 Variable mapped on PD6 See P11 1 P11 7 FB DataOut 7 Sel 0 17 6 858 Variable mapped on PD7 See P11 1 P11 8 FB DataOut 8 Sel 0 17 7 859 Variable mapped on PD8 See P11 1 P1...

Страница 36: ...12 9 PID controller D time 0 00 10 00 s 0 00 132 If this parameter is set to 1 00 sec ond a change of 10 in the error value during 1 00 s causes the controller output to change by 10 00 P12 10 Error value inversion 0 1 0 340 0 Normal Feedback Setpoint Increase PID output 1 Inverted Feedback Setpoint Decrease PID output P12 11 PID error limit 0 0 100 0 100 0 1812 Limit on error P12 12 Sleep frequen...

Страница 37: ...mained below P12 16 for this time P12 18 Max feedback level 100 0 300 0 150 0 1897 Max variation between setpoint and feedback to activate the Feed back Superv Response P12 19 Max feedback time 1 300 s 8 1898 To activate Feedback Superv Response the variation between setpoint and feedback must have remained above P12 18 for this time NOTE This group is hidden when PID output is not used as frequen...

Страница 38: ...m frequency P14 12 P O update time 2 6 s 3 1939 P14 13 P O voltage step 3 10 V 5 1940 P14 14 P O power variation 0 2 5 0 1 0 1941 P14 15 P O local max step 0 60 V 30 1945 P14 16 P O local max time 1 60 m 10 1946 P14 17 P O local max freq 0 00 20 00 Hz 10 00 1947 P14 18 Damping sensitivity 5 50 V 10 1943 Amplitude of oscillation to be recognized P14 19 Damping time 3 10 s 4 1944 Time for the oscill...

Страница 39: ...0 1958 Selections 0 not used 1 Digital pulse 2 AI1 3 AI2 P15 2 Flow at max anlg signal 0 65500 litres min 1000 1960 Considered when flow meter signal is from analogue signal AI1 or AI2 It is the flow leve at maximum analogue signal P14 3 Pulse output volume 0 10000 litres pulse 100 1954 Considered when flow meter signal is from digital input It is the total volume of water for each pulse Table 20 ...

Страница 40: ...999 Number of good messages V2 9 Last communication fault 816 The fault code related to the last counted bad messages is shown 1 Illegal function 2 Illegal address 3 Illegal data value 4 Illegal slave device 53 USART receive fault parity error frame error USART buffer overflow 90 Receive buffer overflow 100 Frame CRC Error 101 Ring buffer overflow P2 2 FB Protocol Status 0 1 0 809 0 Not used 1 Mod...

Страница 41: ...tion sta tus 14022 P2 2 Fieldbus protocol 14023 P2 3 Active protocol 14024 P2 4 Active baud rate 14025 P2 5 Telegram type 14027 P2 6 Operate mode 1 3 1 14021 P2 7 Slave address 2 126 126 14020 When OPTEC EtherCAT option board has been installed the following values are visible V2 1 Version number 0 Version number of the board software V2 2 Board status 0 Status of OPTEC board When OPTC4 LonWorks o...

Страница 42: ...5 833 P4 5 Save parameters to Keypad 0 1 0 1 Upload all parameters to Keypad Hidden when PC is connected This function works properly only with drive supplied P4 6 Download parameters from Keypad 0 1 0 1 Download all parameters to Keypad Hidden when PC is connected This function works properly only with drive supplied F5 x Active fault menu 0 9 Hidden when PC is connected F6 x Fault history menu 0...

Страница 43: ...ro frequency to max frequency A specific acceleration time from zero to minimum frequency is available P2 9 Normal acceleration time P1 3 is active only in case power is from mains supply P1 4 DECELERATION TIME Ramp time referred to variation from max frequency to zero Normal deceleration time P1 4 is active in mains supply and in case the external frequency reference is lowered below the referenc...

Страница 44: ...al reference if the power from panels is not sufficient P1 13 START FUNCTION 0 Ramping 1 Flying start P1 14 STOP FUNCTION NOTE fall of Enable signal when configured always determines stop by coasting P1 15 TORQUE BOOST 0 Not used 1 Automatic voltage boost improves motor torque Selection number Selection name Description 0 Coasting The motor is allowed to stop on its own inertia The control by the ...

Страница 45: ...Vacon service center at www vacon com 4 P1 16 SHOW PARAMETERS 0 Only Basic group and PI Control if function is used 1 All parameters groups are visible P1 17 ENERGY COUNTER RESET Value 1 resets energy counter P1 18 VOLUME COUNTERS RESET Value 1 resets volume counters ...

Страница 46: ...ction takes place when the contacts are closed 2 Double Start Run command is set when both Start 1 and Start 2 signals are high It is reset when both the start sig nals are low This can be used for a simple tank level control with hysteresis if the tank has to be filled two NC contact sensors will be placed at minimum and maximum levels The drive will start below the minimum and stop above the max...

Страница 47: ...ch causes the direction to start changing FWD to REV because Start sign 2 is still active 10 Keypad stop button is pressed and the frequency fed to the motor drops to 0 This signal only works if P2 22 Keypad stop button 1 4 Start sign 2 inactivates and the frequency fed to the motor drops to 0 11 Pushing the Start button on the keypad has no effect on the drive status 5 Start sign 2 activates agai...

Страница 48: ...start changing REV to FWD because Start sign 1 is still active 9 Keypad stop button is pressed and the frequency fed to the motor drops to 0 This signal only works if P2 22 Keypad stop button Yes 4 Also Start sign 1 inactivates and the frequency drops to 0 10 Pushing the Start button on the keypad has no effect on the drive status 5 Despite the activation of Start sign 2 the motor does not start b...

Страница 49: ...lowered below the reference of maximum power It is also active when start command falls and ramp ing stop is programmed stop mode is anyway by coasting when the output frequency is below minimum Specific acceleration and deceleration time are used when power is from solar panels They are available as parameters in MPPT group but it is suggested not to change them unless needed because of stability...

Страница 50: ...vacon 47 Parameter description 4 P2 22 STOP BUTTON ACTIVE 0 Active only in keypad control mode 1 Always active P2 23 KEYPAD REVERSE Effective when control is from keypad 0 Forward 1 Backward ...

Страница 51: ...ant to reduce noise When this parameter is given a value greater than 0 the function that filters out disturbances from the incoming analogue signal is activated NOTE Long filtering time makes the regulation response slower Figure 7 AI1 signal filtering P3 2 AI1 CUSTOM MIN P3 6 AI2 CUSTOM MIN Customized value for minimum signal Effective when different than 0 P3 3 AI1 CUSTOM MAX P3 7 AI2 CUSTOM MA...

Страница 52: ...y 2 With maximum analogue signal the Fre quency reference is at Maximum frequency Green line shows the default settings of custom values Custom Min 0 and Custom Max 100 This settings provides a frequency range between Minimum and Maximum frequency With minimum analogue signal the Frequency reference is at Minimum frequency while with the maximum level is at Maximum frequency Orange line shows an e...

Страница 53: ...reference is at Minimum frequency Blue line shows the inversion of the default settings of custom values Custom Min 100 and Custom Max 0 This settings provides a frequency range between the Minimum frequency and the Maximum frequency With minimum analogue signal the Frequency reference is Max imum frequency while with the maximum level is Minimum frequency Orange line shows an example with Custom ...

Страница 54: ... an example with Custom Min 100 and Custom Max 200 This settings provides a frequency range always at Minimum frequency The Frequency reference is at Min imum frequency within the entire analogue signal range Orange line shows an example with Custom min 0 and Custom Max 50 This settings provides a frequency range between Minimum and Maximum frequency The Frequency refer ence changes linearly withi...

Страница 55: ...is below or above a programmable threshold This can be used for a tank level control where the analogue measurement is used for both starting the pump and controlling the speed P3 10 START LEVEL Unscaled analogue signal If P3 10 P3 11 Start below this level If P3 10 P3 11 Start above this level P3 11 STOP LEVEL Unscaled analogue signal If P3 11 P3 10 Stop above this level If P3 11 P3 10 Stop below...

Страница 56: ...s not in Ready state when Enable is low P4 8 PRESET SPEED B0 P4 9 PRESET SPEED B1 Digital inputs for preset speed selection with binary coding P4 14 SEL CONTROL PLACE 2 Digital input high activates control place 2 P2 14 P4 15 SEL FREQ REFERENCE 2 Digital input high activates frequency reference source 2 P2 15 P4 16 SEL PID SETPOINT 2 Digital input high activates setpoint 2 P12 3 when P12 1 0 P4 17...

Страница 57: ...t Low water level when level is not ok The fault is automatically reset with the Underload logic see P10 4 7 when the level is restored Min level signal fault refers to level in a well from which water is taken P4 23 MAXIMUM WATER LEVEL Digital input for maximum water level P4 24 MAXIMUM LEVEL LOGIC This parameter selects the logic to check the status of water level due by the digital input set by...

Страница 58: ...e frequency converter operates motor is running 3 General fault A fault trip has occurred 4 General fault inverted A fault trip has not occurred 5 General alarm 6 Reversed The reverse command has been selected 7 At speed The output frequency has reached the set reference 8 Frequency supervision Output frequency is over under the limit set with parameters P5 9 and P5 10 9 Current supervision Motor ...

Страница 59: ...e used as inputs and on OPTBF P5 12 is visible only when expansion board OPTBF is installed OPTB1 OPTB2 OPTB5 OPTB9 OPTBF P5 9 EO1 visible if P2 24 4 digital out termi nal 5 visible relay termi nals 21 22 23 visible relay termi nals 22 23 visible relay termi nals 7 8 visible relay termi nals 22 23 P5 10 EO2 visible if P2 24 5 digital out termi nal 6 visible relay termi nals 25 26 visible relay ter...

Страница 60: ... of low pass filter Selection Selection name Value corresponding to maximum output 0 Not used output always fixed at 100 1 Frequency reference Max frequency P1 2 2 Output frequency Max frequency P1 2 3 Motor speed Motor nominal speed 4 Motor current Motor nominal current 5 Motor torque Motor nominal torque absolute value 6 Motor power Motor nominal power absolute value 7 PID output 100 8 Fieldbus ...

Страница 61: ...gher than this value P7 6 ANALOGIN SUPV OFF LEVEL Output goes low when AI is lower than this value P7 10 PROCESS SOURCE SELECT Monitor V1 24 can show a process value proportional to a variable measured by the drive Source variables are 0 PID actual value max 100 1 output frequency max Fmax 2 motor speed max Speed at Fmax 3 motor torque max Tnom 4 motor power max Pnom 5 motor current max Inom P7 11...

Страница 62: ...INT Motor voltage when frequency is above FWP defined as of nominal voltage Note if P1 6 Nominal Voltage is changed P8 3 will be set at 100 If the programmed maximum frequency is higher than motor nominal frequency field weak ening point is automatically set at maximum frequency and fwp voltage is set proportionally higher than 100 This could allow to exploit the higher voltage possibly coming fro...

Страница 63: ...urve form from zero to the field weakening point P8 3 The motor runs under magnetized below the field weakening point and produces less torque Squared U f ratio can be used in applications where torque demand is proportional to the square of the speed e g in centrifugal fans and pumps 2 programmable The U f curve can be programmed with three different points Zero frequency voltage P8 7 P1 Midpoint...

Страница 64: ...on automatically sets this parameter P8 8 SWITCHING FREQUENCY PWM frequency Values above default can cause thermal overload of the drive Motor noise can be minimized using a high switching frequency Increasing the switching frequency reduces the capacity of the drive It is recommended to use a lower frequency when the motor cable is long in order to minimize capacitive currents in the cable P8 11 ...

Страница 65: ...stic to obtain good torque also at low speed 0 not active 1 standstill identification Run command must be given and hold high within 20s after programming the value 1 The mo tor does not rotate and the drive will automatically exit run state at the end of the measure ments Note the drive exits run state only if the measured current exceeds 55 of the motor nominal current Procedure sets the followi...

Страница 66: ...ow 4mA P9 2 4MA FAULT DETECTION TIME Delay as filter on fault generation P9 3 EARTH FAULT PROTECTION 0 No action 1 Warning 2 Fault Output currents sum not zero P9 4 MOTOR STALL PROTECTION 0 No action 1 Warning 2 Fault This is an overload protection Stall is recognized by maximum motor current P1 5 and low output frequency Figure 13 Stall characteristic settings f I Par P1 5 Par P9 6 Stall area ...

Страница 67: ...output frequency below P9 6 for the time in P9 5 P9 7 UNDERLOAD PROTECTION 0 No action 1 Warning 2 Fault Underload Dry run is recognized when torque is above the minimum curve defined by P9 8 and P9 9 for the programmed time P9 10 The Underload mode is selected with P9 23 When P9 23 0 Underload is determined by pa rameters P9 8 P9 10 When P9 23 1 the fault is related to P9 24 P9 8 UNDERLOAD LOAD C...

Страница 68: ...ximum time allowed for an underload state to exist An internal up down counter counts the accumulated underload time If the underload counter value goes above this limit the protection will cause a trip according to parameter P9 7 If the drive is stopped the under load counter is reset to zero Figure 16 Underload time counter Par P9 8 Par P9 9 f 5 Hz Underload area Torque Fieldweakening point Par ...

Страница 69: ...is running at nominal speed without external cooling See Figure 17 The default value is set assuming that there is no external fan cooling the motor If an external fan is used this parameter can be set to 90 or even higher Setting this parameter does not affect the maximum output current of the drive which is deter mined by parameter P1 5 alone The corner frequency for the thermal protection is 70...

Страница 70: ...operate at six times the rated current is known given by the motor manufacturer the time constant parameter can be set basing on it As a rule of thumb the motor thermal time constant in minutes equals to 2 t6 If the drive is in stop stage the time constant is internally increased to three times the set pa rameter value The cooling in stop stage is based on convection and the time constant is in cr...

Страница 71: ...ated motor temperature at power on 0 initialized at minimum value 1 initialized at constant value from P9 22 2 initialized at last previous value with P9 22 used as factor P9 22 MOTOR TEMP INITIAL VALUE If P9 21 1 motor temperature is initialized with this value If P9 21 2 motor temperature is initialized with last previous value multiplied by this value as factor P9 23 UNDERLOADDETECTMODE This pa...

Страница 72: ...tage fault is reset without limitations also when P10 1 is not active The drive will re start according the delay times defined by the parameters P14 1 1 to P14 1 4 Underload dry run fault is reset when P10 1 is active without limitations in number but ac cording to a specific time schedule At first fault autoreset is done after time 1 P10 4 If underload fault happens again after the number of tri...

Страница 73: ...ve fault code 8 analogue AI1 9 analogue AI2 10 digital inputs state 11 PID actual value 12 PID setpoint 13 Power kW 14 Energy 15 Flow 16 Volume 1 17 Volume 2 P11 9 FB AUX CW SELECTION Parameter defines the input process data coupled to Aux Control Word 0 not used 1 PDI1 2 PDI2 3 PDI3 4 PDI4 5 PDI5 P11 10 FB PID SETPOINT SELECTION Parameter defines the input process data coupled to PID setpoint Sel...

Страница 74: ...Name Description Range 2001 Control word Drive control Binary coded b0 Run b1 Reverse b2 Fault Reset on edge b8 forces control place to fieldbus b9 forces reference source to fieldbus 2002 General control word Not used 2003 Speed reference Reference 0 10000 as 0 00 100 00 of Min freq Max freq range 2004 Fieldbus Data IN 1 Programmable 0 10000 2005 Fieldbus Data IN 2 Programmable 0 10000 2006 Field...

Страница 75: ...dered only when control place is the Fieldbus It is computed in AND with a possible enable from digital input Fall of enable will cause coasting stop b2 FreqRef2 Sel is considered only when control place is the Fieldbus functions related to bit1 b3 and b4 are available also when control place is not the Fieldbus Aux CW must anyway be mapped onto a PDI by means of parameter P11 9 PID Setpoint activ...

Страница 76: ...rol place is fieldbus 2103 Actual speed Actual speed 0 10000 as 0 00 100 00 of Min freq Max freq range 2104 Fieldbus Data OUT 1 Programmable See P11 1 2105 Fieldbus Data OUT 2 Programmable See P11 2 2106 Fieldbus Data OUT 3 Programmable See P11 3 2107 Fieldbus Data OUT 4 Programmable See P11 4 2108 Fieldbus Data OUT 5 Programmable See P11 5 2109 Fieldbus Data OUT 6 Programmable See P11 6 2110 Fiel...

Страница 77: ...e only with board OPTBH see P13 8 10 P12 5 FEEDBACK MINIMUM P12 6 FEEDBACK MAXIMUM Minimum and maximum feedback values corresponding to minimum and maximum of the signal P12 7 PID CONTROLLER P GAIN Proportional gain If set to 100 a variation of 10 on error causes a variation of 10 on reg ulator output P12 8 PID CONTROLLER I TIME Integral time constant If set to 1s a variation of 10 on error will c...

Страница 78: ...DELAY Time of working at minimum frequency before entering sleep condition P12 14 WAKE UP LIMIT The drive exits from sleep if the error exceeds this value Direction of regulation P12 10 is in ternally considered P12 15 FEEDBACK SUPERV RESPONSE Response to feedback supervision 0 No action 1 Alarm 2 Fault P12 16 MIN FEEDBACK LEVEL P12 17 MIN FEEDBACK TIME P12 18 MAX FEEDBACK LEVEL P12 19 MAX FEEDBAC...

Страница 79: ...an run continuously for the same long delay time next start attempts will begin with short delay again The same sequence is applied in case a running drive stops because of a temporary decrease in solar power Note If the drive is supplied by mains the drive is always enabled to start from external com mand 4 13 2 MPPT Generally the MPP voltage of a panel is higher when the available power is high ...

Страница 80: ...than 100 should be set in P14 7 4 13 2 2 MPPT regulator The drive tries to get the maximum power from solar panels by keeping the DC voltage at the optimum point Max Power Point There is a PI regulator that changes the internal frequency reference so that the power sent to the motor keeps the panels working on MPP The voltage reference can be monitored V2 1 and compared to actual DC voltage V1 9 t...

Страница 81: ...eriod P14 12 makes the regulation faster assuming that the PI gains are not too low power variation has to complete within the period The correction term can be monitored V2 2 to help the tuning of reference feed forward When the panels temperature is close to standard 25 C the correction term should result small 20 to 30V The correction decreases towards negative maximum as temperature increases ...

Страница 82: ... overcome the local maximum and continue to search for the actual MPP If the point is the real MPP the lower voltage reference will cause a drop in DC voltage and some oscillations that are recognized and automatically damped by increasing the DC voltage reference The function can be disabled by programming P14 15 0V P14 16 P O LOCAL MAX TIME Further attempts to reach a higher MPP after an unsucce...

Страница 83: ...rrectly increased P14 19 DAMPING TIME Oscillation is recognized when the logic sees three maximum and minimum point during the time defined by P14 19 If the time is too short the logic could fail with slow oscillations If the time is too long spaced and unrelated min and max points could be confused with an os cillation P14 20 SLEEP IN SOLAR MODE This parameter enables or disables the sleep fuctio...

Страница 84: ... selection 0 Not used 1 Digital pulse 2 AI1 3 AI2 P15 2 FLOW AT MAX ANLG SIGNAL Considered when flow meter signal is from analogue input It is the flow value at maximum sig nal level of the analogue input P15 3 PULSE OUTPUT VOLUME Considered when flow meter signal is from digital input It is the total water volume for each pulse ...

Страница 85: ... is not zero insulation failure in cables or motor Check motor cables and motor 84 MPI communication crc error Reset the fault and restart Should the fault re occur con tact the distributor near to you 89 HMI receives buffer overflow Check PC drive cable Try to reduce ambient noise 90 Modbus receives buffer overflow Check Modbus specifications for time out Check cable length Reduce ambient noise C...

Страница 86: ...he distributor near to you 8 System Fault 107 Option board HMI queue full Check contacts in option board slot Try to reduce ambient noise Should the fault re occur con tact the distributor near to you 108 Option board SPI queue full Check contacts in option board slot Try to reduce ambient noise Should the fault re occur con tact the distributor near to you 111 Parameter copy error Check if parame...

Страница 87: ...igh temperature measured in power unit s heatsink or board Heatsink temperature is over 100 C Check the correct amount and flow of cooling air Check the heatsink for dust Check the ambient tempera ture Make sure that the switching frequency is not too high in rela tion to ambient temperature and motor load 15 Motor stalled Motor is stalled Check motor and load Insufficient motor power check motor ...

Страница 88: ... the device indicated by the error message Check the cabling for the respective device as well 52 Keypad Communication fault The connection between the con trol keypad and the frequency con verter is broken Check keypad connection and keypad cable 53 Fieldbus communication fault The data connection between the fieldbus master and fieldbus board is broken Check installation and fieldbus master 54 F...

Страница 89: ...hold level P14 1 1 Check settings 61 Restart Delay The drive will start after the pro grammed delay 62 Unsupported Application is not compatible with the drive 63 Low water level The water level is not ok Check settings and the mini mum water level status 64 Max water level The water level is not ok Check settings and the maxi mum water level status Fault code Fault name Subcode Possible cause Rem...

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Страница 91: ......

Страница 92: ...ID Rev E Manual authoring documentation vacon com Vacon Plc Runsorintie 7 65380 Vaasa Finland Subject to change without prior notice 2015 Vacon Plc Find your nearest Vacon office on the Internet at www vacon com ...

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