NXL Lift Application Drive Manual

Transcription

1 NXL Lift Application Drive Manual Digital Advance Control LTD, Unit 2 Faraday Close, Drayton Fields Industrial Estate, Daventry, Northamptonshire. NN11 8RD. Tel: +44(0) Fax: +44(0) enquiries@digital-advanced-control.co.uk

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3 Index 1. Safety Page 4 2. Introduction Page 5 3. EMC Considerations Page 6 4. Block Diagram Page 7 5. Drive Signals Page 8 6. Typical Connections Page 9 7. The Control Keypad Page Navigation Of The Control Keypad Page The Monitoring Menu Page Faults and Fault Tracing Page Commissioning An Asynchronous (standard motor) Machine i. initial parameter settings and checks Page 19 ii. Direction Check Page Open Loop Commissioning i. initial checks Page 21 ii. high speed setup Page 21 iii. levelling speed setup Page 21 iv. lift stopping setup Page 22 v. lift starting setup Page 23 vi. brake stall check Page 23 vii. final checks Page copying parameters Page parameters and the default parameter settings page 25 3 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

4 1.0 Safety 1.1 Warnings do not perform any measurements on the frequency converter when the frequency converter is connected to the mains Do not perform any voltage withstand test on any part of the Vacon NXP. There is a certain procedure according to which the test shall be performed. Ignoring this procedure may result in damaged product. The Earth leakage current of the Vacon NXP frequency converter exceeds 3.5 milliamps A/C and in compliance with EN a reinforced protective ground connection is used and should not be removed from the drive. Only Vacon spare parts should be used. Do not touch the components on the circuit boards static voltage discharge may damage the components. 1.2 Safety Instructions The components of the power unit of the frequency converter are live when the Vacon NXP is connected to the mains potential. Coming into contact with this voltage is extremely dangerous and may cause death or severe injury. The control unit is isolated from mains potential. The motor terminals U, V, W and the DC link/brake resistor terminals are live when the Vacon NXP is connected to the mains, even when the motor is not running. After disconnecting the frequency converter from the mains, wait until the fan stops and the indicators on the keypad go out (if no keypad is attached, there are indicators on the cover). Wait 5 minutes more before doing any work on the Vacon NXP connections. Do not even open the cover before this time has expired. The control I/O terminals are isolated from the mains potential. However, the relay outputs and other I/O terminals may have a dangerous control voltage present even when the Vacon NXP is disconnected from the mains. Always check the drawings to see if any of the relays or the I/O is connected to a dangerous potential. Before connecting the frequency converter/control system to the mains make sure that the Vacon NXP front cable covers are closed. The Earth for protection inside the frequency converter protects only the converter itself against a fault in the motor or the motor cable. It is not intended for personal safety. 1.3 Warning symbols For your own safety please pay special attention to instructions marked with the following symbols: 4

5 2.0 Introduction The Vacon NXL is a state-of-the-art A/C drive for use in the lift applications were reliability, dynamic performance, precision and power are required. The ride quality and reliability of the lift system is in most cases the result of precise dynamic control of the motor. The Vacon NXL has been designed to provide the best possible control under all circumstances, ensuring high operational reliability and ride quality for the entire lifetime of the system. As a forerunner in designing and manufacturing A/C drive systems, Vacon has developed many innovative solutions and leading-edge technology for demanding applications one of which is the lift application. The Vacon Drive has been used on many lift applications both within the UK and abroad. The Vacon NXL is suitable for asynchronous Open Loop only and is also suitable for geared applications. The control topology is open loop sensorless flux vector control. The drive utilises the latest PWM technology to ensure switching losses and efficiencies to the motor are minimised and maximised respectively. The Vacon NXL also has the advantage of including all the filters and DC chokes incorporated within the Power module to ensure compliance with the EMC directive. The Vacon unit can also have an optional regenerative low harmonic drive added to improve power quality and have additional energy saving s when the lift is in the regenerative state. Robust Power Module Snap on Fan Removable Display Connection to PC or Keypad Touch-protected High Voltage Connections Separate Control unit and flexible I/O. 5 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

6 3.0 EMC considerations Variable frequency variable voltage drives utilise high-power electronic switching to control both the frequency and the voltage to the motor, this has a side effect of causing electromagnetic interference and the Vacon NXL complies with the relevant EMC standards. This compliance relies on the correct installation requirements being followed. The following is required to keep conformance to the relevant standards: Wire the mains to the control panel in a suitably rated SY mains cable, with the screen connected at both the isolator and the panel earthing points. Ensure the screen is bonded using 360 clamps or ensure the screen pigtail is less than 50 mm long. Wire the motor from the panel connections in a suitably rated SY mains cable with the screen connected at both the panel and the motor earthing points. Ensure the screen is bonded using 360 clamps or ensure the screen pigtail is less than 50 mm long. Ensure the motor and mains cable are at least 300 mm apart. Also ensure that any other cable such as Brake thermistor and encoder wiring is kept separate from the motor cables. Ensure the encoder cable's screen cables are not the only at the drive. Ensure the cable is properly terminates using the strap provided in the drive. Ensure the earthing of the incoming mains is a good Earth and is in compliance with the current IEEE regulations. (Note: the earthing should not solely rely on trunking and conduit connections or bonding strips). Ensure the Earth is connected from the isolator to the panel via the recommended practices in the current IEEE regulations. 6

7 4.0 Block diagram of the drive The figure below presents the block diagram of the Vacon NXL frequency converter. The frequency converter mechanically consists of 2 units, the power unit and the control unit. The three-phase A/C choke (1) and the mains end together with the DC link capacitors (2) forms a LC filter which, again, together with the diode bridge produces a DC voltage that is applied to the IGBT inverter bridge (3) block. The A/C choke also functions as a filter against high-frequency disturbances from the mains as well as against those caused by the frequency converter to the mains. It, in addition, enhances the waveform of the input current to the frequency converter. The entire power drawn by the frequency converter from the mains is active power. The motor and application control block is based on the microprocessor software. The microprocessor controls the motor based on the information received through measurements, parameter settings, control I/O and the control keypad. The motor application control block controls the motor control ASIC which in turn calculates the IGBT switch positions. Gate Drivers amplify these signals, and operates the drives IGBT inverter bridge. The brake chopper is an additional unit built within the drive system to control the voltage across the DC link when the motor enters the regenerative state. The excess energy is placed across the resistors to maintain the DC link at the correct voltage. 7 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

8 5.0 Drive signals The drive utilises an internally derived 24V coupled with contacts on the control system to give the signals to operate the drive. The signals are listed below with the termination numbers. 5.1 Input signals (Slot A) NX0PTA1 Terminal Description 6 +24V 24V control voltage output(100 ma Max) 7 GND I/O ground reference 8 DIN1 Up direction 9 DIN2 Down direction 10 DIN3 Run enable(off = coast to stop) 13 GND I/O ground reference V in Control power supply backup 5.2 Output signals (Slot B) NX0PTA2 Terminal Description 22 R01(common) Relay output 1 (Fault) 23 R01(N/O) 5.3 Ext Input signals (Slot C) NX0PTAA X3 Terminal Description 1 +24V 24V control voltage output(100 ma Max) 2 GND I/O ground reference 3 DIN1 DIE1 High Speed 4 DIN2 DIE2 Medium Speed 5 DIN3 DIE3 Inspection Speed X5 Terminal Description 25 R01E(common) Relay output 1 Ext (Mechanical brake) 26 R01E(N/O) 8

9 5.4 Typical connections 9 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

10 6.0 The control keypad The control keypad is a link between the Vacon frequency converter and the user. The keypad is an alphanumeric display with various indicators for the run and status of the drive. There are also 3 status LEDs. The keypad also has 8 push buttons to aid parameter setting and monitor values of the drive. 6.1 Drive status indicators = The motor is running = Indicates the direction of rotation of the motor = Indicates that the drive is not running = Indicates when the A/C power is on, in case of fault will not show ready = Indicates the drive is running outside its limits and a warning is given = Indicates the drive has encountered unsafe operating conditions and has stopped. = Illuminates with the A/C Power is connected to the drive and no faults are active = Illuminates when the drive is running = Flashes when an unsafe operating condition exists and the drive has stopped in the fault condition. 6.2 The keypad push buttons The Vacon alphanumeric control keypad features 8 push buttons that are used to control the frequency converter, parameter settings and Value monitoring. 10

11 Keypad layout = This button is used to enter the values/reset fault history when held for 2 to 3 seconds when in the fault history. = This button is used to reset the active faults = Browse the main menu and pages of the submenus/increase parameter values = Browse the main menu and pages of the submenus/decrease parameter values = Menu button left/move backwards in the menu/move the cursor left = Menu button right/move forwards in the menu/move the cursor right 11 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

12 6.2 Navigation of the control keypad The data from the control keypad is arranged in menus and submenus. The menus are used for the displaying of monitored items such as frequency, current, voltage, etc and also the displaying and editing of the parameters used to configure the drive. The various different functions of the drive are arranged in a simple menu structure of a main menu consisting of 7 menus as follows: M1 Monitor. P2 Parameters. K3 Keypad control. F4 Active faults. H5 Fault history. S6 System menu. E7 Expander boards (option cards). 12

13 Each of the various submenus can then be accessed from the main menu for example to access the monitoring values you first access the monitor menu and then using the right arrow enter the monitor menu and using the up and down arrows you can then access each of the monitoring values. Another example is if you want to change a parameter you first access the parameter menu P2 once again press the right arrow to access the submenu s and then use the up and down arrows to scroll to the submenu you require and then use the right and left arrow to enter/exit the submenu. Once in the submenu the value of the parameter can be changed by pressing the right arrow which causes the parameter to flash, using the up and down arrow the value can be changed, once the correct value is displayed this is confirmed by pressing the enter button as shown in example below:! Tech TIP: for quicker adjustment once the parameter is flashing the right arrow can be pressed again and using the left arrow and right arrow select the digit of the parameter which can using the up and down arrows individually adjusted. 13 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

14 6.3 The monitor menu You can enter the monitor menu from the main menu by pushing the menu button right when the location notation M1 is visible on the display. The monitored signals carry the notation V1.X and are listed in the table below; the values are updated once every 300 ms. This menu is meant only for monitoring and values cannot be altered here. Monitoring Value List Code Monitored Value Unit Description V1.1 Output frequency Hz Actual output frequency to the motor V1.2 Frequency reference Hz Target frequency to the motor V1.3 Motor speed RPM Calculated motor speed V1.4 Motor current A Actual current drawn by the motor V1.5 Motor torque % Calculated motor torque V1.6 Motor power % Calculated motor power V1.7 Motor voltage V Actual voltage applied to the motor V1.8 DC link voltage V DC voltage across the IGBT bridge V1.9 Unit temperature C Heat sink temperature of the unit V1.10 Analogue input 1 AI1 input V1.11 Analogue input 2 AI2 Input V1.12 Analogue output Analogue output V1.13 DIN1, DIN2, DIN3 Digital input statuses V1.14 DIN4, DIN5, DIN6 Digital input statuses V1.15 R01,R0E1,D0E1 Output statuses V1.16 Lift speed m/s Calculated lift speed in m/s 14

15 6.4 Active faults menu (F4) The active faults menu can be entered from the main menu by pushing the menu button right with the location notation F4 be shown on the keypad display. When the fault appears on the frequency converter location indicator F4, the fault code and a short description of the fault will appear on the display, in addition to this the indication fault is displayed and the red LED on the keypad starts to blink. If several faults occur simultaneously the list of active faults can be browsed using the browser buttons. There can be up to 10 active faults stored in the order of appearance and the display can be cleared with the reset button. The fault will remain active until it is cleared with the reset button. Additional information is recorded when the fault occurs and with the fault present this may be accessed by pressing the right arrow and then using the browser buttons to access the additional information such as motor voltage, output frequency, motor current, etc 6.5 Fault history menu (H5) The Fault history menu can be entered on the main menu by pushing the menu button right when the location notation H5 is displayed on the keypad. Up to a maximum of 5 faults in the order of appearance can be stored, after entering the Fault history the 1st Fault presented is the latest fault to occur. If more than 5 faults occur the newest fault over writes the oldest fault. Once again, once in the Fault history menu access to each fault is via the up and down browser buttons. The fault of history can be cleared by pressing the enter button for approximately 3 seconds whist the fault of history is displayed. A list of the fault codes and possible causes is shown overleaf. 15 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

16 7.0 Faults and Possible Causes Fault Tracing Fault Fault Possible cause and the solution code 1 Overcurrent The drive has detected too high a current supply to the motor. This is greater than 4 x In (drive current). Possible causes could be: - A sudden increase the load such as the brake releasing when moving (loose cables, lock tips, etc). - A short circuit in the motor or motor cables - faulty motor or wrong data for the motor - faulty contactor/faulty contactor pole - faulty encoder feedback/faulty screen on the encoder cable 16 2 Overvoltage The DC link voltage has exceeded 911 V DC. Possible causes could be: - Open circuit resistor/faulty braking resistor connection - Faulty brake chopper - Parameter P2.4.1 is set to Off should be On, Run - Deceleration rates set to short - Input voltage too high 3 Earth fault Current measurement of the drive has detected that the sum of the motor phase currents is not 0. Possible causes could be: - insulation failure in the motor cables - insulation breakdown/ failure in the motor 5 Charging switch On larger drives the capacitors have to be pre-charged on switch on, after the capacitors have been pre-charged, the pre-charge circuit is shorted out. This fault occurs when the start command has been given and the charge circuit is open, possible causes are: - a faulty component - faulty operation, not in sequence 6 Emergency stop The emergency stop signal has been given from the option board, this feature is not used on digital advanced control, control systems 8 System fault The frequency converters troubleshooting system is unable to locate the fault. 9 Under voltage The DC link voltage is under the voltage limit of 333 V DC possible causes could be: - loose/missing phase - supply voltage is too low - faulty isolator/isolator pole - internal fault in the drive 11 Output phase supervision The current measurement circuit of the drive has detected that there is no current in 1 motor phase. Possible causes could be: - loose/missing motor phase - faulty contactor/faulty contactor pole - faulty motor connection either in the control system or the motor terminal box - faulty motor

17 Fault Tracing Fault Fault code Possible cause and the solution code 13 Under temperature The drive has detected that the temperature of the heat sink has fallen below -10 C possible causes could be: - software problem in the drive - the temperature in the control system has fallen below -10 C - internal fault in the drive 14 Over temperature The drive has detected that the temperature of the heat sink has risen above 90 C possible causes could be: - ventilation in the controller/motor room - fan in the drive is not operational/blocked - ventilation to the control system is blocked 15 Motor stalled The drive has detected that the motor is in the stalled condition possible causes could be: - brake is not lifting/energising - motor data is set incorrectly - motor identification has not been performed - the drive/motor rating is incorrect(contact factory) 16 Motor over temperature The motor overheating has been detected by the drive from the motor temperature model. Possible causes could be: - motor temperature model not set correctly - the motor is running overloaded 17 Motor under load Motor under load protection has tripped 22/23 EEPROM/checksum fault 24 Change data warning When performing a write/read E2PROM the drive has detected an error - parameter save fault - faulty operation - component failure Changes may have occurred in the data due to the mains interruption 25 Microprocessor Watchdog fault 29 Thermistor fault Not used The microprocessor has a monitoring circuit to check the programme is running correctly. When the program does not run correctly the system faults with the Watchdog error. The possible causes could be: - faulty operation due to interference - faulty component in the drive 34 Device change This occurs on switch on when an option board has been changed. Press reset and the drive should not re-fault. If a Fault re-occurs, check the option card has been fitted correctly and in the correct slot. 17 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

18 Fault Tracing Fault Fault Possible cause and the solution code 38 Device added This occurs when an option card has been fitted. Press reset and the drive should not re-fault. If a fault re-occurs, Check the option card has been fitted correctly and in the correct slot. 39 Device removed This occurs when an option card has been removed. 40 Device unknown This occurs when an option board is placed in the wrong slot or the option board or main control card is damaged. 41 IGBT temperature This occurs when there is localised heating in the IGBT, this can occur when the motor is overloaded or there is an instantaneous increase in the motor current. This can also occur when there is a component failure. Leave the drive to cool down and reset the drive. If this fault re-occurs, check items as in the over-current fault. If this fault does not clear contact the factory. 44 Device change This occurs on switch on when an option board has been changed. Press reset and the drive should not re-fault. If a Fault re-occurs, check the option card has been fitted correctly and in the correct slot. 45 Device added This occurs when an option card has been fitted. Press reset and the drive should not re-fault. If a fault re-occurs, Check the option card has been fitted correctly and in the correct slot. 51 External fault Not used(report to factory) 52 Keypad communication fault The connection between the control keypad and the frequency converter is broken. Possible causes: - Faulty keypad. - Faulty keypad connector on the reverse of the keypad. - Faulty cable inside the drive between the connector and the control board. 53 Field bus communication fault 54 SPI communication fault The data connection between the field bus master and the field bus board is disconnected.(not used at present contact the factory) The data connection between the control board and option board is faulty (not used at present contact the factory) 58 Minimum current This fault occurs if the actual motor current is below the minimum value set in P , this parameter is set to ensure the motor is drawing current and has not released the brake and the lift is moving up the shaft out of control. Possible causes: - Check the value is set correctly and is approximately 1/2 of the magnetising current. 18

19 8.0 Commissioning an Asynchronous (standard motor) Machine 8.1 Initial parameter settings and checks At Digital Advanced Control, we always try to set the optimum parameters for the drive to be run with the minimal of adjustments. This is dependent on the information given to us when manufacturing the control panel. It is important that the following checks are carried out to ensure the information given was correct and your parameter settings are set correctly within the drive to suit site conditions. Before switch on check the following: 1. Write down the following from the motor data plate. a. The motor nominal current Amps. b. The motor nominal voltage Volts. c. The motor nominal frequency Hz. d. The motor Cos Phi Θ Θ. e. The motor nominal RPM RPM. 2. Check the motor is connected correctly on the high-speed winding and the connections are securely fastened. 3. Ensure the brake, thermistors (if fitted) and motor fan (if fitted) are all connected correctly and are securely fastened. 4. Ensure the control system is on inspection control and is capable of being run up and down safely. Ensure your personal safety, once you are happy everything is safe switch the lift on. 5. In the motor parameters enter the data recorded above. Set the motor current limit to 2xFLC of the motor. 6. Set the following motor parameters: a. P2.2.1 nominal linear speed = (synchronous/motor RPM) x lift speed.! Tech Tip: for a 4 pole motor the synchronous speed is 1500 rpm, for a 6 pole motor the synchronous speed is 1000 rpm and for an 8 pole motor the synchronous speed is 750 rpm. b. P levelling speed is set at 0.05 m/s c. P full speed, set at 0.5 m/s (if the lift speed is below 0.5 m/s set to contract speed). d. P intermediate speed, set at 0.5 m/s (if the lift speed is below 0.5 m/s set to contract speed). e. P inspection speed, set to the desired speed but no greater than 0.25 m/s. 19 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

20 f. P current limit FWD, in the brake control group. Set this parameter to 0.1 x motor full load current. g. P current limit REV, in the brake control group. Set this parameter to 0.1 x motor full load current. h. P DC brake current, in the DC brake control group. Set this parameter to 0.9 x motor full load current. 8.3 Direction check 7. Check it is okay to run the lift up and then switch the lift on, and run the lift up, the UPR relay should energise and the lift should run up. If the lift does not run up swap 2 of the phases on the motor and repeat the test. 8. Run the lift down and the DNR relay should energise and the lift should run down. You are now ready to run the lift on inspection control. 20

21 8.4 Open loop commissioning These instructions are for commissioning the lift with an open loop drive for lift speeds of 1 m/s and less. The correct tuning is required to get good motor torque properties at low speeds, which will give accurate floor levels and a smooth start and stop of the lift. The open loop sensor-less flux vector Vacon drive utilises sophisticated algorithms in the software to give very good performance on a low speed lift. Following these procedures will allow the tuning of the algorithms to give you the optimum performance of the drive. 9. Check the start up procedure in 1-7 has been done 10. Check the speed of the lift and ensure the slowing limits have been set to the correct distances shown on the drawings. If using a tape head ensure the floor levels and slowing distances have been as accurately as practically possible to their operational distances. 11. Ensure the lift can run safely and trouble-free in the shaft i.e. not tipping locks, etc. 8.5 Setup High Speed 12. Place the lift on normal, and slowly increase the speed of the lift until high-speed is obtained. If the lift begins to overshoot the floor level and then the Deceleration 1 P parameter should be increased to prevent this. Also monitor the output frequency and ensure when running up no-load the output frequency is not 50 Hz or above, the output frequency should be normally approximately 45 to 48 Hz. 8.6 Setup Levelling Speed 13. Check the parameter P levelling speed is set at 0.05 m/s (10 ft/m). Increase the deceleration rate so that the lift runs for approximately 10 to 15 seconds on levelling speed, now monitor the levelling speeds both in the up and down direction and ensure they are within 5% of each other.. If the lift runs faster in the up and then to equalise speeds reduce the parameter P2.1.3 motor nominal speed (200 RPM Max) in the motor parameters. If the lift runs faster in the down then to equalise the speeds increase the parameter P2.1.3 motor nominal speed (200 RPM Max). 14. Check the parameter P2.4.3 frequency limit in the drive control group is approximately 1Hz above the levelling speed. 15. Monitor the speed in the up and down direction. The speed of the lift should be within 5% in the up and down direction. 16. Now reduce the deceleration rate of the lift to ensure you maintain levelling speed for approximately 1.5 seconds.! Tech Tip: if the motor stalls when in the down direction (empty car) then increase P2.5.8 output voltage at zero frequency, this increases the voltage at low speed and overcomes the resistive volt drop of the windings, increase to a maximum of 5%. Monitor The output current at High and levelling speed and it should be the same, Increase or decrease Parameter P2.5.7 mid frequency Volts until they are equal. 21 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

22 8.7 Setup Lift Stopping 17. Adjust the parameter P DC braking frequency, in the mechanical brake control parameters to ensure the lift stops accurately, reduce the frequency to obtain a more accurate stop. Adjust the parameter P mechanical brake close delay so that the brake energises approximately 0.25s after the lift has stopped. This will help obtain accurate floor levelling. 18. Now ensure the lift stops smoothly and the brake is adjusted such that it performs it required function, but the lift of the brake is reduced to minimise the noise on stopping. 22

23 8.8 Setup Lift Starting 19. Check now the start of the lift and it should be smooth and accelerate comfortably away from the floor level. If the start of the lift drives against the brake the brake release time can be reduced by adjusting the parameter P brake open delay in the brake control group, so that the lift starts smoothly. If the lift rolls back then again this time can be increased. 20. Now adjust the acceleration rate if required by adjusting parameter P Acceleration 1, in the speed curve 1 group. To increase the time to high speed, reduce this value. To decrease the time taken to high speed, increase this value. 8.9 Brake Stall Check 21. An important function of the drive safety is to ensure that it is not possible to drive through the brake, with the lift switched off isolate the supply via the circuit breaker for the brake shown on the drawings. Switch the lift on and the lift should try to run, after approximately 2 seconds the drive should trip on F15 Motor Stall. The lift motor should not drive through the brake. Reconnect the brake Final Checks 22. Now setup the floor levels on the lift and adjust to suit, and perform all the necessary safety checks before the lift is placed into service. 23 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

24 9.0 Copying parameters The parameters can be easily copied from one drive to another to allow ease of setting up or in a rare case of a drive having to be changed allows the parameters that were stored in the existing drive to be downloaded to the new drive. Before any parameters can be successfully copied from one drive to another drive the drive has to be stopped when the parameters are downloaded to it. To upload the parameters place the lift on inspection and follow the instructions below: To download the parameters is similar to uploading to keypad, instead of up to keypad, select down from keypad with a lift on inspection control. 24

25 10.0 Parameters and Default Settings Motor parameters Code Parameter default Note P2.1.1 Nominal volts of To suit Set to motor nominal volts on the data plate the motor P2.1.2 Nominal frequency To suit Set to motor nominal frequency on the data plate of the motor P2.1.3 Nominal speed of the motor To suit Set to the motor nominal RPM on the data plate(not the synchronous speed) P2.1.4 Nominal current to the motor In Amps Set to the motor nominal current on the data plate P2.1.5 Motor cos-phi 0.78 Set to motor nominal cos phi on the data plate(if non use 0.78) P2.1.6 Current limit 2.0 x In Amps Set to twice the motor nominal current on the data plate Speed control parameters Code Parameter Default Note P2.2.1 Nominal linear To suit speed P2.2.2 Speed reference selection The nominal linear speed is the value which corresponds to the low speed at and the nominal frequency of the motor and is set in m/s. This value can be estimated from the calculation below. nominal linear speed = (synchronous/motor RPM) x lift speed. 0 This parameter defines which frequency reference sources selected. The default is activity of the table below shows the four constant speed which can be selected. DIN 4,5,6 0,0,0 1,0,0 0,1,0 0,0,1 Speed reference Priority Levelling speed 0 Low priority Full speed 1 Limited speed/override speed Inspection speed Speed reference (m/s) Code Parameter Default Note P Levelling speed 0.05 Set to 0.05 m/s (10 ft./m) P Full speed Contract Set to contract speed of the lift P Limited speed Contract Set to contract speed of the lift P Inspection speed 0.25 Set to 0.25 m/s or less Speed reference(hz) P To P Frequency representation of parameters above Not applicable 2 3 High priority Automatically set when adjusting speed references above(used to crosscheck speed settings) 25 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

26 Speed Curve 1 Code Parameter Default Note P Acceleration m/s² Acceleration rate of the lift in m/s² P Deceleration m/s² Deceleration rates of the lift in m/s² P Accel Inc jerk s Initial S-curve from 0 to acceleration P Accel dec jerk s S-curve from acceleration to speed P Dec Inc jerk s S-curve from speed to deceleration P Dec dec jerk s S-curve from deceleration to speed/0 Mechanical brake control parameters Code Parameter Default Note P Current limit FWD 0.1 x In Sets the point the brake will energise once the current has been exceeded P Current limit REV 0.1 x In Set as above (exactly same value) P Torque limit FWD 0 Not used set to 0 P Torque limit REV 0 Not used set to 0 P Frequency limit 0 Not used set to 0 FWD P Frequency limit 0 Not used set to 0 REV P Brake opening delay 0.02s Sets how long before the brake energises after the current limit above is exceeded (set to 0 or very low). P Mechanical brake reaction time 0.05 s The time and the speed references held to allow the brake to lift P Max frequency brake closed 0.1 x mf The maximum frequency outputted if the brake has not energised(4hz) Closing brake control parameters Code Parameter Default Note P Frequency limit close 0.01 x mf Sets the frequency that the drive must be below to instigate the start of the brake closing time P Brake close delay 0.5 s The time that the brake closes after it reaches below the frequency limit close DC brake control parameters Code Parameter Default Note P DC braking current 0.8 x In The amount of DC injection into the motor to preenergise the motor and also used to aid zeroing when P P P DC braking time at Start DC braking time at stop DC braking start frequency stopping(maximum set to 90% of full load current) 0.6 s Time for the DC injection when starting 1.1 s Time for the DC injection when stopping 0.01 x mf The frequency at which the DC injection starts when decelerating to 0 26

27 Drive Control Code Parameter Default Note P2.4.1 brake chopper 1 When the drive is decelerating the motor, the inertia of the motor and the load are fed into an external brake resistor. This is the function of the brake chopper. P2.4.2 Stop Function 2 This parameter means that the lift coasts to a stop when the drive has been called to stop when the lift is above the frequency set as in P2.4.3 otherwise the lift will ramp to a stop. P2.4.3 Frequency Limit 0.1 x mf Frequency the lift coasts to a stop(should be above the levelling speed frequency of the lift or the lift will not stop correctly) Motor Control Code Parameter Default Note P2.5.1 Motor Control 1 This parameter selects open loop control Mode P2.5.2 U/F optimisation 1 The voltage to the motor changes automatically which makes the motor produce sufficient torque to start and run at low frequencies. Automatic torque boost is used where a high starting torque is required. P2.5.3 U/F Ratio Selection 2 The U/f curve can be programmed with three different points. P2.5.4 Field Weakening Point 50Hz The field weakening point is the output frequency at which the output voltage reaches the value set in P2.5.5 P2.5.5 Voltage at FWP 100% The voltage at the field weakening point set as a percentage of the motor rated voltage P2.5.6 P2.5.7 P2.5.8 P2.5.9 U/F Curve Mid Point Frequency U/F Midpoint Voltage Output voltage at 0Hz Switching frequency Overvoltage controller under voltage controller Measured RS voltage drop 0.1 x mf This parameter defines the midpoint frequency of the programmable curve. This parameter is adjusted by the auto tune 13% This parameter defines the midpoint voltage of the programmable curve. This parameter is adjusted between 10 and 13% 2.5% This parameter defines the minimum voltage the drive will output at lower frequencies. This parameter is adjusted between 2.5 and 5% 10 khz This is the modulation frequency of the drive. This can be increased to reduce noise in the motor, but can affect the rating of the drive and advice must be sought before increasing above 12 khz 0 Not used 1 This monitors that the input voltage is not too low when the drive is running. To suit motor This parameter is a measure of the volt drop of the stator resistance between two phases 27 YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)

28 Input Signals Code Parameter Default Note P2.6.1 Start/stop logic 1 Start forward(din1) and start reverse(din2) P2.6.2 DIN 3 function 7 0 = not used 1 = speed curve 2 2 = external fault close 3 = external fault open 4 = fault reset 5 = run enable 6 = emergency stop CC 7 = emergency stop OC 8 = override speed 9 = brake open enable 10 = speed reference 1 11 = speed reference 2 12 = speed reference 3 P2.6.3 DIN 4 function 0 Not used P2.6.4 DIN 5 function 0 Not used P2.6.5 DIE 1 function 10 Speed reference 1(hi speed) 28 DIE2 function 11 Speed reference 2(intermediate speed) DIE3 function 12 Speed reference 3(inspection speed) Output Signals Code Parameter Default Note P2.7.1 Relay output 1 function(ro1) P2.7.2 Digital output 2 0 Not used P2.7.3 Relay output 2 function P2.7.2 Digital output 1 0 Not used P2.7.5 Analogue output 0 Not used function P2.7.6 Analogue output 1.00 Not used filter time P2.7.7 Analogue output 0 Not used inversion P2.7.8 Analogue output 0 Not used minimum P2.7.9 Analogue output 100 Not used scale Protections 3 This relay output is set when the drive is under the fault condition. 16 This relay output is set when the mechanical brake is determined to be lifted Code Parameter Default Note P2.8.1 response to external fault 3 0 = no response 1 = warning 2 = fault(stop according to 2.4.2) P2.8.2 response to under voltage fault 3 = fault, stop by coasting 3 this trips when the drive voltage is below

29 Protections Code Parameter Default Note P2.8.3 Output phase supervision 3 This trips when there is unequal current in the phases of the motor P2.8.4 Earth fault protection 3 This detects if one of the motor phases is heavily loaded relative to the other phases. Motor faults P2.8.5 Thermal protection in the motor 3 Sets to trip the drive when a thermal fault is detected P2.8.6 ambient temperature factor 0% offsets the motor thermal protection based on the ambient temperature (contact the factory for use) P2.8.7 Zero frequency 40% Not used, Contact factory for use current P2.8.8 Time constant 45 Not used, contact factory for use P2.8.9 motor duty cycle 100% not used, contact factory for use P Stall protection 3 Stall protection for the motor P Stall current limit In x 1.3 Automatically set when setting motor name plate data P Stall time 15 Sec Maximum time allowed for the stall stage P Max stall frequency 25 Hz Frequency must remain below this for a stall condition P response to a 0 not used thermistor fault P Response to field 0 not used bus fault P Response to slot 0 Not used P Auto restart Not used fault minimum current limit no action not used Not Used Usually Not Required Required for commissioning Tel: +44 (0) YSP 2010 Version 1.0 MN2 enquiries@digital-advanced-control.co.uk Tel +44(0)