WEG CFW500
Variable speed drive for pumps, fans, conveyors and machines, with motor data, faults and full parameter access.
The WEG CFW500 is a modular variable speed drive that controls induction and permanent magnet motors on pumps, fans, conveyors and machines. This Modbus RTU template reads frequency, current, voltage, power, status and faults, and lets you start, stop and reset the drive and write the speed reference and every parameter from ModbusCloud.
- Protocol
- Modbus RTU
- Connection
- RS485, 19200 baud
- Registers
- 420, read and write
- Brand
- WEG
- Key readings
- Output frequency · Motor current · DC link voltage · Output power · Motor torque · Inverter status · Present fault
- Available commands
- Run and stop · Fault reset · Speed reference · Ramp times · Drive parameters
- Compatible models
- CFW500 (all power ratings) · CFW500 with plug-in CFW500-IOS, IOD, IOAD, IOR, CRS485, CUSB or CRS232
- Last updated
Registers (420)
420 read, 339 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| P0005 Output Frequency (Motor) | Hz | Read | |||
| P0003 Motor Current | A | Read | |||
| P0004 DC Link Voltage (Ud) | V | Read | |||
| P0007 Output Voltage | V | Read | |||
| P0009 Motor Torque | % | Read | |||
| P0010 Output Power | kW | Read | |||
| P0011 Power Factor | Read | ||||
| P0002 Output Speed (Motor) | Read | ||||
| P0001 Speed Reference | Read | ||||
| P0006 Inverter Status | Read | ||||
| P0030 Module Temperature | °C | Read | |||
| P0037 Motor Overload Ixt | % | Read | |||
| P0048 Present Alarm | Read | ||||
| P0049 Present Fault | Read | ||||
| P0680 Logical Status | Read | ||||
| P0681 Speed at 13 bits | Read | ||||
| P0682 Serial/USB Control | Read and write | ||||
| P0683 Serial/USB Speed Ref. | Read and write | ||||
| P0012 DI8 to DI1 Status | Read | ||||
| P0013 DO5 to DO1 Status | Read | ||||
| P0018 AI1 Value | % | Read | |||
| P0019 AI2 Value | % | Read | |||
| P0020 AI3 Value | % | Read | |||
| P0014 AO1 Value | % | Read | |||
| P0015 AO2 Value | % | Read | |||
| P0000 Access to Parameters | Read and write | ||||
| P0016 FO Value in % | % | Read | |||
| P0017 FO Value in Hz | Hz | Read | |||
| P0021 FI Value in % | % | Read | |||
| P0022 FI Value in Hz | Hz | Read | |||
| P0023 Main SW Version | Read | ||||
| P0024 Secondary SW Version | Read | ||||
| P0027 Plug-in Module Configuration | Read | ||||
| P0028 Safety Functions Module | Read | ||||
| P0029 Power HW Configuration | Read | ||||
| P0038 Encoder Speed | rpm | Read | |||
| P0039 Encoder Pulse Counter | Read | ||||
| P0040 PID Process Variable | Read | ||||
| P0041 PID Setpoint Value | Read | ||||
| P0047 CONFIG Status | Read | ||||
| P0050 Last Fault | Read | ||||
| P0051 Last Fault Current | A | Read | |||
| P0052 Last Fault DC Link | V | Read | |||
| P0053 Last Fault Frequency | Hz | Read | |||
| P0054 Last Fault Temperature | °C | Read | |||
| P0055 Last Fault Logical Status | Read | ||||
| P0060 Second Fault | Read | ||||
| P0061 Second Fault Current | A | Read | |||
| P0062 Second Fault DC Link | V | Read | |||
| P0063 Second Fault Frequency | Hz | Read | |||
| P0064 Second Fault Temperature | °C | Read | |||
| P0065 Second Fault Logical Status | Read | ||||
| P0070 Third Fault | Read | ||||
| P0071 Third Fault Current | A | Read | |||
| P0072 Third Fault DC Link | V | Read | |||
| P0073 Third Fault Frequency | Hz | Read | |||
| P0074 Third Fault Temperature | °C | Read | |||
| P0075 Third Fault Logical Status | Read | ||||
| P0100 Acceleration Time | s | Read and write | |||
| P0101 Deceleration Time | s | Read and write | |||
| P0102 Acceleration Time 2 | s | Read and write | |||
| P0103 Deceleration Time 2 | s | Read and write | |||
| P0104 S Ramp | Read and write | ||||
| P0105 1 / 2 Ramp Selection | Read and write | ||||
| P0106 3rd Ramp Time | s | Read and write | |||
| P0108 SS1-t Time | s | Read and write | |||
| P0109 SS1-t Confirmation Time | s | Read | |||
| P0120 Speed Ref. Backup | Read and write | ||||
| P0121 Reference via HMI | Hz | Read and write | |||
| P0122 JOG Reference | Hz | Read and write | |||
| P0124 Multispeed Ref. 1 | Hz | Read and write | |||
| P0125 Multispeed Ref. 2 | Hz | Read and write | |||
| P0126 Multispeed Ref. 3 | Hz | Read and write | |||
| P0127 Multispeed Ref. 4 | Hz | Read and write | |||
| P0128 Multispeed Ref. 5 | Hz | Read and write | |||
| P0129 Multispeed Ref. 6 | Hz | Read and write | |||
| P0130 Multispeed Ref. 7 | Hz | Read and write | |||
| P0131 Multispeed Ref. 8 | Hz | Read and write | |||
| P0132 Maximum Overspeed Level | % | Read and write | |||
| P0133 Minimum Speed | Hz | Read and write | |||
| P0134 Maximum Speed | Hz | Read and write | |||
| P0135 Maximum Output Current | A | Read and write | |||
| P0136 Manual Torque Boost | % | Read and write | |||
| P0137 Automatic Torque Boost | % | Read and write | |||
| P0138 Slip Compensation | % | Read and write | |||
| P0139 Output Current Filter | ms | Read and write | |||
| P0140 Slip Com. Filter | ms | Read and write | |||
| P0142 Maximum Output Voltage | % | Read and write | |||
| P0143 Intermediate Output Voltage | % | Read and write | |||
| P0144 Minimum Output Voltage | % | Read and write | |||
| P0145 Field Weakening Start | Hz | Read and write | |||
| P0146 Intermediate Frequency | Hz | Read and write | |||
| P0147 Low Frequency | Hz | Read and write | |||
| P0150 Type DC V/f Link Regulator | Read and write | ||||
| P0151 DC Link Regul. Level | V | Read and write | |||
| P0152 DC Link Regul. Prop. Gain | Read and write | ||||
| P0153 Rheostatic Braking Level | V | Read and write | |||
| P0156 Overload Current 100 % | A | Read and write | |||
| P0157 Overload Current 50 % | A | Read and write | |||
| P0158 Overload Current 20 % | A | Read and write | |||
| P0161 Speed Proportional Gain | Read and write | ||||
| P0162 Speed Integral Gain | Read and write | ||||
| P0165 Speed Filter | s | Read and write | |||
| P0166 Speed Differential Gain | Read and write | ||||
| P0167 Current Proportional Gain | Read and write | ||||
| P0168 Current Integral Gain | Read and write | ||||
| P0169 Maximum + Torque Current | % | Read and write | |||
| P0170 Maximum - Torque Current | % | Read and write | |||
| P0175 Flux Proportional Gain | Read and write | ||||
| P0176 Flux Integral Gain | Read and write | ||||
| P0178 Rated Flux | % | Read and write | |||
| P0181 Magnetization Mode | Read and write | ||||
| P0182 Speed for I/f Activation | rpm | Read and write | |||
| P0183 Current in I/f Mode | % | Read and write | |||
| P0184 DC Link Regulation Mode | Read and write | ||||
| P0185 DC Link Regulation Level | V | Read and write | |||
| P0186 DC Link Proportional Gain | Read and write | ||||
| P0187 DC Link Integral Gain | Read and write | ||||
| P0188 Voltage Proport. Gain | Read and write | ||||
| P0189 Voltage Integral Gain | Read and write | ||||
| P0190 Maximum Output Voltage | V | Read and write | |||
| P0200 Password | Read and write | ||||
| P0202 Type of Control | Read and write | ||||
| P0203 Special Function Sel. | Read and write | ||||
| P0204 Load/Save Parameters | Read and write | ||||
| P0205 Main Display Parameter | Read and write | ||||
| P0206 Secondary Display Parameter | Read and write | ||||
| P0207 Parameter for Bar | Read and write | ||||
| P0208 Scale of Reference | Read and write | ||||
| P0209 Ref. Eng. Unit | Read and write | ||||
| P0210 Ref. Indication Form | Read and write | ||||
| P0213 Bar Scale Factor | Read and write | ||||
| P0216 HMI Backlight | Read and write | ||||
| P0217 Sleep Mode Frequency | Hz | Read and write | |||
| P0218 Sleep Mode Time | s | Read and write | |||
| P0220 LOC/REM Selection Source | Read and write | ||||
| P0221 LOC Reference Sel. | Read and write | ||||
| P0222 REM Reference Sel. | Read and write | ||||
| P0223 LOC Rotation Sel. | Read and write | ||||
| P0224 LOC Run/Stop Sel. | Read and write | ||||
| P0225 LOC JOG Selection | Read and write | ||||
| P0226 REM Rotation Selection | Read and write | ||||
| P0227 REM Run/Stop Selection | Read and write | ||||
| P0228 REM JOG Selection | Read and write | ||||
| P0229 Stop Mode Selection | Read and write | ||||
| P0230 Dead Zone (AIs) | Read and write | ||||
| P0231 AI1 Signal Function | Read and write | ||||
| P0232 AI1 Input Gain | Read and write | ||||
| P0233 AI1 Input Signal | Read and write | ||||
| P0234 AI1 Input Offset | % | Read and write | |||
| P0235 AI1 Input Filter | s | Read and write | |||
| P0236 AI2 Signal Function | Read and write | ||||
| P0237 AI2 Input Gain | Read and write | ||||
| P0238 AI2 Input Signal | Read and write | ||||
| P0239 AI2 Input Offset | % | Read and write | |||
| P0240 AI2 Input Filter | s | Read and write | |||
| P0241 AI3 Signal Function | Read and write | ||||
| P0242 AI3 Input Gain | Read and write | ||||
| P0243 AI3 Input Signal | Read and write | ||||
| P0244 AI3 Input Offset | % | Read and write | |||
| P0245 AI3 Input Filter | s | Read and write | |||
| P0246 FI Input in Freq. | Read and write | ||||
| P0247 FI Input Gain | Read and write | ||||
| P0248 FI Minimum Input | Hz | Read and write | |||
| P0249 FI Input Offset | % | Read and write | |||
| P0250 FI Maximum Input | Hz | Read and write | |||
| P0251 AO1 Output Function | Read and write | ||||
| P0252 AO1 Output Gain | Read and write | ||||
| P0253 AO1 Output Signal | Read and write | ||||
| P0254 AO2 Output Function | Read and write | ||||
| P0255 AO2 Output Gain | Read and write | ||||
| P0256 AO2 Output Signal | Read and write | ||||
| P0257 FO Output Function | Read and write | ||||
| P0258 FO Output Gain | Read and write | ||||
| P0259 FO Minimum Output | Hz | Read and write | |||
| P0260 FO Maximum Output | Hz | Read and write | |||
| P0263 DI1 Input Function | Read and write | ||||
| P0264 DI2 Input Function | Read and write | ||||
| P0265 DI3 Input Function | Read and write | ||||
| P0266 DI4 Input Function | Read and write | ||||
| P0267 DI5 Input Function | Read and write | ||||
| P0268 DI6 Input Function | Read and write | ||||
| P0269 DI7 Input Function | Read and write | ||||
| P0270 DI8 Input Function | Read and write | ||||
| P0271 DIs Signal | Read and write | ||||
| P0275 DO1 Output Function | Read and write | ||||
| P0276 DO2 Output Function | Read and write | ||||
| P0277 DO3 Output Function | Read and write | ||||
| P0278 DO4 Output Function | Read and write | ||||
| P0279 DO5 Output Function | Read and write | ||||
| P0287 Fx Hysteresis | Hz | Read and write | |||
| P0288 Fx Speed | Hz | Read and write | |||
| P0290 Ix Current | A | Read and write | |||
| P0293 Tx Torque | % | Read and write | |||
| P0295 Inv. Rated Current | A | Read | |||
| P0296 Line Rated Voltage | Read | ||||
| P0297 Switching Frequency | Hz | Read and write | |||
| P0298 Application | Read and write | ||||
| P0299 Start Braking Time | s | Read and write | |||
| P0300 Stop Braking Time | s | Read and write | |||
| P0301 Start Frequency | Hz | Read and write | |||
| P0302 DC Braking Voltage | % | Read and write | |||
| P0303 Skip Frequency 1 | Hz | Read and write | |||
| P0304 Skip Frequency 2 | Hz | Read and write | |||
| P0306 Skip Band | Hz | Read and write | |||
| P0308 Serial Address | Read and write | ||||
| P0310 Serial Baud Rate | Read and write | ||||
| P0311 Serial Bytes Config. | Read and write | ||||
| P0312 Serial Protocol (1) (2) | Read and write | ||||
| P0313 Communic. Error Action | Read and write | ||||
| P0314 Serial Watchdog | s | Read and write | |||
| P0316 Serial Interf. Status | Read | ||||
| P0317 Oriented Start-up | Read and write | ||||
| P0320 Flying Start/Ride-Through | Read and write | ||||
| P0321 DC Link Power Loss | V | Read and write | |||
| P0322 DC Link Ride-Through | V | Read and write | |||
| P0323 DC Link Power Back | V | Read and write | |||
| P0325 Ride-Through P Gain | Read and write | ||||
| P0326 Ride-Through I Gain | Read and write | ||||
| P0327 FS I/f Current Ramp | Read and write | ||||
| P0328 Flying Start Filter | Read and write | ||||
| P0329 FS I/f Frequency Ramp | Read and write | ||||
| P0331 Voltage Ramp | s | Read and write | |||
| P0340 Auto-Reset Time | s | Read and write | |||
| P0343 Fault/Alarm Mask | Read and write | ||||
| P0349 Ixt Alarm Level | % | Read and write | |||
| P0352 Sensorless DC Braking Level | Read and write | ||||
| P0360 Speed Hysteresis | % | Read and write | |||
| P0361 Time with Speed Different | s | Read and write | |||
| P0372 DC Braking Level (Sensorless) | % | Read and write | |||
| P0397 Control Configuration | Read and write | ||||
| P0398 Motor Service Factor | Read and write | ||||
| P0399 Motor Rated Efficiency | % | Read and write | |||
| P0400 Motor Rated Voltage | V | Read and write | |||
| P0401 Motor Rated Current | A | Read and write | |||
| P0402 Motor Rated Rotation | rpm | Read and write | |||
| P0403 Motor Rated Frequency | Hz | Read and write | |||
| P0404 Motor Rated Power | Read and write | ||||
| P0405 Encoder Pulse Number | Read and write | ||||
| P0406 Motor Ventilation | Read and write | ||||
| P0407 Motor Rated Power Factor | Read and write | ||||
| P0408 Self-Tuning | Read and write | ||||
| P0409 Stator Resistance | Ω | Read and write | |||
| P0410 Magnetization Current | A | Read and write | |||
| P0411 Leakage Inductance | Read and write | ||||
| P0412 Tr Time Constant | s | Read and write | |||
| P0413 Tm Time Constant | s | Read and write | |||
| P0431 Number of Poles | Read and write | ||||
| P0435 Electromotive Constant Ke | Read and write | ||||
| P0445 MTPA Setting | Read and write | ||||
| P0446 MTPA Proportional Gain | Read and write | ||||
| P0447 MTPA Integral Gain | Read and write | ||||
| P0448 Current Stabilizer | Read and write | ||||
| P0451 Initial Speed VVW PM | % | Read and write | |||
| P0452 DQ Current Filter | ms | Read and write | |||
| P0453 Aux. Ramp Time at Start | s | Read and write | |||
| P0454 MTPA Minimum Voltage | % | Read and write | |||
| P0510 SoftPLC Eng. Unit 1 | Read and write | ||||
| P0511 Decimal Point SoftPLC Eng. | Read and write | ||||
| P0512 SoftPLC Eng. Unit 2 | Read and write | ||||
| P0513 Decimal Point SoftPLC Eng. | Read and write | ||||
| P0520 PID Proportional Gain | Read and write | ||||
| P0521 PID Integral Gain | Read and write | ||||
| P0522 PID Differential Gain | Read and write | ||||
| P0525 PID Setpoint by HMI | % | Read and write | |||
| P0526 PID Setpoint Filter | ms | Read and write | |||
| P0527 PID Action Type | Read and write | ||||
| P0528 Process Variable Scale | Read and write | ||||
| P0529 Process Variable Indication | Read and write | ||||
| P0533 X Process Variable Value | % | Read and write | |||
| P0535 Wake Up Band | % | Read and write | |||
| P0536 P0525 Automatic Setting | Read and write | ||||
| P0588 Maximum Torque Level | % | Read and write | |||
| P0589 Level of Minimum Applied | % | Read and write | |||
| P0590 Minimum Speed Level | rpm | Read and write | |||
| P0591 Hysteresis for the Maximum | % | Read and write | |||
| P0613 Software Revision | Read | ||||
| P0684 CO/DN/PB/Eth Control | Read | ||||
| P0685 CO/DN/PB/Eth Speed Ref. | Read | ||||
| P0690 Logical Status 2 | Read | ||||
| P0695 DOx Value | Read and write | ||||
| P0696 AOx Value 1 | Read and write | ||||
| P0697 AOx Value 2 | Read and write | ||||
| P0698 AOx Value 3 | Read and write | ||||
| P0700 CAN Protocol | Read and write | ||||
| P0701 CAN Address | Read and write | ||||
| P0702 CAN Baud Rate | Read and write | ||||
| P0703 Bus Off Reset | Read and write | ||||
| P0705 CAN Controller Status | Read | ||||
| P0706 CAN RX Telegrams | Read | ||||
| P0707 CAN TX Telegrams | Read | ||||
| P0708 Bus Off Counter | Read | ||||
| P0709 CAN Lost Messages | Read | ||||
| P0710 DeviceNet I/O Instances | Read and write | ||||
| P0711 DeviceNet Reading #3 | Read and write | ||||
| P0712 DeviceNet Reading #4 | Read and write | ||||
| P0713 DeviceNet Reading #5 | Read and write | ||||
| P0714 DeviceNet Reading #6 | Read and write | ||||
| P0715 DeviceNet Writing #3 | Read and write | ||||
| P0716 DeviceNet Writing #4 | Read and write | ||||
| P0717 DeviceNet Writing #5 | Read and write | ||||
| P0718 DeviceNet Writing #6 | Read and write | ||||
| P0719 DeviceNet Network Status | Read | ||||
| P0720 DNet Master Status | Read | ||||
| P0721 CANopen Com. Status | Read | ||||
| P0722 CANopen Node Status | Read | ||||
| P0740 Profibus Com. Status | Read | ||||
| P0741 Profibus Data Profile | Read and write | ||||
| P0742 Profibus Reading #3 | Read and write | ||||
| P0743 Profibus Reading #4 | Read and write | ||||
| P0744 Profibus Reading #5 | Read and write | ||||
| P0745 Profibus Reading #6 | Read and write | ||||
| P0746 Profibus Reading #7 | Read and write | ||||
| P0747 Profibus Reading #8 | Read and write | ||||
| P0750 Profibus Writing #3 | Read and write | ||||
| P0751 Profibus Writing #4 | Read and write | ||||
| P0752 Profibus Writing #5 | Read and write | ||||
| P0753 Profibus Writing #6 | Read and write | ||||
| P0754 Profibus Writing #7 | Read and write | ||||
| P0755 Profibus Writing #8 | Read and write | ||||
| P0800 Eth: Module Identification | Read | ||||
| P0801 Eth: Communication Status | Read | ||||
| P0803 Eth: Baud Rate | Read and write | ||||
| P0806 Eth: Modbus TCP Timeout | Read and write | ||||
| P0810 Eth: IP Address Config | Read and write | ||||
| P0811 Eth: IP Address 1 | Read and write | ||||
| P0812 Eth: IP Address 2 | Read and write | ||||
| P0813 Eth: IP Address 3 | Read and write | ||||
| P0814 Eth: IP Address 4 | Read and write | ||||
| P0815 Eth: CIDR Sub-net | Read and write | ||||
| P0816 Eth: Gateway 1 | Read and write | ||||
| P0817 Eth: Gateway 2 | Read and write | ||||
| P0818 Eth: Gateway 3 | Read and write | ||||
| P0819 Eth: Gateway 4 | Read and write | ||||
| P0820 Eth: Read Word #3 | Read and write | ||||
| P0821 Eth: Read Word #4 | Read and write | ||||
| P0822 Eth: Read Word #5 | Read and write | ||||
| P0823 Eth: Read Word #6 | Read and write | ||||
| P0824 Eth: Read Word #7 | Read and write | ||||
| P0825 Eth: Read Word #8 | Read and write | ||||
| P0826 Eth: Read Word #9 | Read and write | ||||
| P0827 Eth: Read Word #10 | Read and write | ||||
| P0828 Eth: Read Word #11 | Read and write | ||||
| P0829 Eth: Read Word #12 | Read and write | ||||
| P0830 Eth: Read Word #13 | Read and write | ||||
| P0831 Eth: Read Word #14 | Read and write | ||||
| P0835 Eth: Write Word #3 | Read and write | ||||
| P0836 Eth: Write Word #4 | Read and write | ||||
| P0837 Eth: Write Word #5 | Read and write | ||||
| P0838 Eth: Write Word #6 | Read and write | ||||
| P0839 Eth: Write Word #7 | Read and write | ||||
| P0840 Eth: Write Word #8 | Read and write | ||||
| P0841 Eth: Write Word #9 | Read and write | ||||
| P0842 Eth: Write Word #10 | Read and write | ||||
| P0843 Eth: Write Word #11 | Read and write | ||||
| P0844 Eth: Write Word #12 | Read and write | ||||
| P0845 Eth: Write Word #13 | Read and write | ||||
| P0846 Eth: Write Word #14 | Read and write | ||||
| P0849 Eth: Configuration Update | Read and write | ||||
| P0918 Profibus Address | Read and write | ||||
| P0922 Profibus Teleg. Sel. | Read and write | ||||
| P0963 Profibus Baud Rate | Read | ||||
| P0967 Control Word 1 | Read | ||||
| P0968 Status Word 1 | Read | ||||
| P1000 SoftPLC Status | Read | ||||
| P1001 SoftPLC Command | Read and write | ||||
| P1002 Scan Cycle Time | ms | Read | |||
| P1004 Action for SoftPLC | Read and write | ||||
| P1008 Lag Error | Read | ||||
| P1009 Position Gain | Read and write | ||||
| P1010 SoftPLC Parameter 1 | Read and write | ||||
| P1011 SoftPLC Parameter 2 | Read and write | ||||
| P1012 SoftPLC Parameter 3 | Read and write | ||||
| P1013 SoftPLC Parameter 4 | Read and write | ||||
| P1014 SoftPLC Parameter 5 | Read and write | ||||
| P1015 SoftPLC Parameter 6 | Read and write | ||||
| P1016 SoftPLC Parameter 7 | Read and write | ||||
| P1017 SoftPLC Parameter 8 | Read and write | ||||
| P1018 SoftPLC Parameter 9 | Read and write | ||||
| P1019 SoftPLC Parameter 10 | Read and write | ||||
| P1020 SoftPLC Parameter 11 | Read and write | ||||
| P1021 SoftPLC Parameter 12 | Read and write | ||||
| P1022 SoftPLC Parameter 13 | Read and write | ||||
| P1023 SoftPLC Parameter 14 | Read and write | ||||
| P1024 SoftPLC Parameter 15 | Read and write | ||||
| P1025 SoftPLC Parameter 16 | Read and write | ||||
| P1026 SoftPLC Parameter 17 | Read and write | ||||
| P1027 SoftPLC Parameter 18 | Read and write | ||||
| P1028 SoftPLC Parameter 19 | Read and write | ||||
| P1029 SoftPLC Parameter 20 | Read and write | ||||
| P1030 SoftPLC Parameter 21 | Read and write | ||||
| P1031 SoftPLC Parameter 22 | Read and write | ||||
| P1032 SoftPLC Parameter 23 | Read and write | ||||
| P1033 SoftPLC Parameter 24 | Read and write | ||||
| P1034 SoftPLC Parameter 25 | Read and write | ||||
| P1035 SoftPLC Parameter 26 | Read and write | ||||
| P1036 SoftPLC Parameter 27 | Read and write | ||||
| P1037 SoftPLC Parameter 28 | Read and write | ||||
| P1038 SoftPLC Parameter 29 | Read and write | ||||
| P1039 SoftPLC Parameter 30 | Read and write | ||||
| P1040 SoftPLC Parameter 31 | Read and write | ||||
| P1041 SoftPLC Parameter 32 | Read and write | ||||
| P1042 SoftPLC Parameter 33 | Read and write | ||||
| P1043 SoftPLC Parameter 34 | Read and write | ||||
| P1044 SoftPLC Parameter 35 | Read and write | ||||
| P1045 SoftPLC Parameter 36 | Read and write | ||||
| P1046 SoftPLC Parameter 37 | Read and write | ||||
| P1047 SoftPLC Parameter 38 | Read and write | ||||
| P1048 SoftPLC Parameter 39 | Read and write | ||||
| P1049 SoftPLC Parameter 40 | Read and write | ||||
| P1050 SoftPLC Parameter 41 | Read and write | ||||
| P1051 SoftPLC Parameter 42 | Read and write | ||||
| P1052 SoftPLC Parameter 43 | Read and write | ||||
| P1053 SoftPLC Parameter 44 | Read and write | ||||
| P1054 SoftPLC Parameter 45 | Read and write | ||||
| P1055 SoftPLC Parameter 46 | Read and write | ||||
| P1056 SoftPLC Parameter 47 | Read and write | ||||
| P1057 SoftPLC Parameter 48 | Read and write | ||||
| P1058 SoftPLC Parameter 49 | Read and write | ||||
| P1059 SoftPLC Parameter 50 | Read and write |
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If a device is not in the library yet, we build the template for free as soon as we have the register data.
Use cases
- Show output frequency, motor current and power of every CFW500 on one dashboard per installation.
- Send an e-mail when the present fault code is no longer 0, so you know about a trip before the customer calls.
- Keep a history of motor current, DC link voltage and module temperature to find the cause of recurring trips.
- Change the speed reference or the PID setpoint of a pump or fan from ModbusCloud without going on site.
- Read the fault history with current and frequency at the moment of each fault after a service call.
Installation
Connect terminal 12 (A-line, -), 14 (B-line, +) and 16 (GND) of the plug-in module to the RS485 port of the ModbusCloud Gateway. Switch on the terminating resistor at both ends of the bus.
Set P0312 to 2 (Modbus RTU), address P0308, baud rate P0310 and byte format P0311 on the drive (default 1, 19200 baud, even parity, 1 stop bit).
In ModbusCloud, add a Modbus device with the same address and serial settings and import this template.
Check that output frequency, DC link voltage and inverter status come in with plausible values.
Things to watch for
The drive does not answer. What should I check?
Check that P0312 is set to Modbus RTU, and compare P0308, P0310 and P0311 with the settings in ModbusCloud; the default byte format is even parity, which is easy to miss. Check A and B on terminals 12 and 14 and the terminating resistor switches. P0316 shows whether the serial interface is active.
Why do I see 15 instead of 1.5 A when I read with another tool?
The CFW500 sends every value as a whole number without the decimal point, so 1.5 A arrives as 15 and 30.0 Hz as 300. The template applies the right factor per parameter. P0681 and P0683 use a 13-bit scale where 8192 equals the motor rated frequency.
The drive ignores the control word and speed reference.
The commands are only used when the drive takes them from the serial interface: set the LOC or REM sources in P0220 to P0228 to Serial, and P0221 or P0222 to Serial for the speed reference. Set bit 1 (general enable) and bit 0 (run) in P0682.
The drive goes to alarm A128 or fault F228.
That is a serial communication timeout set by P0314. Poll at least one register faster than this time, or set P0314 to 0.0 to switch the watchdog off. P0313 decides what the drive does when it happens.
What should I keep in mind when writing parameters?
Every parameter you write changes the drive at once. Read the current value first and write one parameter at a time. Parameters marked cfg can only be changed while the motor is stopped, and some motor and control settings start a new configuration routine.
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