Invertek Optidrive E3
Variable frequency drive for pumps, fans and conveyors, with speed control, motor data and trip status.
The Invertek Optidrive E3 is a compact variable frequency drive that controls the speed of motors on pumps, fans, compressors and conveyors. This Modbus RTU template reads frequency, current, power, temperatures, status and trip codes, and lets you start, stop and reset the drive and write the speed setpoint and parameters from ModbusCloud.
- Protocol
- Modbus RTU
- Connection
- RS485, 115200 baud
- Registers
- 116, read and write
- Brand
- Invertek
- Key readings
- Output frequency · Motor current · Motor power · DC bus voltage · Heatsink temperature · Drive status · Trip code · Energy meter
- Available commands
- Run and stop · Fault reset · Speed setpoint · Ramp time · Drive parameters
- Compatible models
- Optidrive E3 IP20 (ODE-3-...) · Optidrive E3 IP66 indoor · Optidrive E3 IP66 outdoor · Optidrive Compact 2 Basic (OPC-2-...E)
- Last updated
Registers (116)
116 read, 65 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| Output Frequency | Hz | Read | |||
| Motor Current | A | Read | |||
| Motor Torque | Read | ||||
| Motor Power | kW | Read | |||
| DC Bus Voltage | V | Read | |||
| Drive Power Stage Temperature | °C | Read | |||
| Output Voltage | V | Read | |||
| Drive Status and Error Code | Read | ||||
| Trip Code | Read | ||||
| Status Word 2 | Read | ||||
| Motor Output Speed | Hz | Read | |||
| Motor Output Current | A | Read | |||
| Motor Output Power | kW | Read | |||
| IO Status Word | Read | ||||
| Motor Output Torque | Read | ||||
| DC Bus Voltage (Extended) | V | Read | |||
| Heatsink Temperature | °C | Read | |||
| Analog Input 1 (Extended) | % | Read | |||
| Analog Input 2 (Extended) | % | Read | |||
| Analog Output | % | Read | |||
| PI Output | % | Read | |||
| Internal Temperature | °C | Read | |||
| Motor Output Voltage | V | Read | |||
| IP66 Pot Input Value | % | Read | |||
| Digital Input Status | Read | ||||
| Relay Output Status | Read | ||||
| Analog Input 1 | % | Read | |||
| Analog Input 2 | % | Read | |||
| Pre-Ramp Speed Reference | Hz | Read | |||
| Internal Drive Temperature | °C | Read | |||
| Speed Reference (Internal Format) | Read | ||||
| Digital Pot / Keypad Reference | Read | ||||
| Scope Channel 1 Data | Read | ||||
| Scope Channel 2 Data | Read | ||||
| Control Word | Read and write | ||||
| Frequency Setpoint | Hz | Read and write | |||
| PI Setpoint / Analog Output Control | Read and write | ||||
| Ramp Time | s | Read and write | |||
| High Resolution Frequency Setpoint | Read and write | ||||
| Parameter Access Index | Read and write | ||||
| Parameter Access Value | Read and write | ||||
| Energy Meter kWh | kWh | Read | |||
| Energy Meter MWh | MWh | Read | |||
| Running Time Hours | h | Read | |||
| Running Time Minutes and Seconds | s | Read | |||
| Run Time Since Last Enable Hours | h | Read | |||
| Run Time Since Last Enable Seconds | s | Read | |||
| Parameter Checksum | Read | ||||
| Rating ID | Read | ||||
| Power Rating | kW | Read | |||
| Voltage Rating | Read | ||||
| IO Processor Software Version | Read | ||||
| Motor Control Processor Software Version | Read | ||||
| Drive Type | Read | ||||
| Drive Serial Number 4 | Read | ||||
| Drive Serial Number 3 | Read | ||||
| Drive Serial Number 2 | Read | ||||
| Drive Serial Number 1 | Read | ||||
| P-04 Deceleration Ramp Time | Read and write | ||||
| P-05 Stopping Mode / Mains Loss Response | Read and write | ||||
| P-06 Energy Optimiser | Read and write | ||||
| P-07 Motor Rated Voltage | Read and write | ||||
| P-08 Motor Rated Current | Read and write | ||||
| P-09 Motor Rated Frequency | Read and write | ||||
| P-10 Motor Rated Speed | Read and write | ||||
| P-11 Low Frequency Torque Boost | Read and write | ||||
| P-12 Primary Command Source | Read and write | ||||
| P-13 Operating Mode Select | Read and write | ||||
| P-14 Extended Menu Access Code | Read and write | ||||
| P-15 Digital Input Function Select | Read and write | ||||
| P-16 Analog Input 1 Signal Format | Read and write | ||||
| P-17 Maximum Effective Switching Frequency | Read and write | ||||
| P-18 Output Relay Function Select | Read and write | ||||
| P-19 Relay Threshold Level | Read and write | ||||
| P-20 Preset Speed 1 | Read and write | ||||
| P-21 Preset Speed 2 | Read and write | ||||
| P-22 Preset Speed 3 | Read and write | ||||
| P-23 Preset Speed 4 | Read and write | ||||
| P-24 2nd Ramp Time (Fast Stop) | Read and write | ||||
| P-25 Analog Output Function Select | Read and write | ||||
| P-26 Skip Frequency Hysteresis Band | Read and write | ||||
| P-27 Skip Frequency Centre Point | Read and write | ||||
| P-28 V/F Adjustment Voltage | Read and write | ||||
| P-29 V/F Adjustment Frequency | Read and write | ||||
| P-30 Start Mode, Restart and Fire Mode | Read and write | ||||
| P-31 Keypad Start Mode Select | Read and write | ||||
| P-32 DC Injection Configuration | Read and write | ||||
| P-33 Spin Start | Read and write | ||||
| P-34 Brake Chopper Enable | Read and write | ||||
| P-35 Analog Input 1 Scaling | Read and write | ||||
| P-36 Serial Communications Configuration | Read and write | ||||
| P-37 Access Code Definition | Read and write | ||||
| P-38 Parameter Access Lock | Read and write | ||||
| P-39 Analog Input 1 Offset | Read and write | ||||
| P-40 Display Scaling | Read and write | ||||
| P-41 PI Proportional Gain | Read and write | ||||
| P-42 PI Integral Time | Read and write | ||||
| P-43 PI Operating Mode | Read and write | ||||
| P-44 PI Setpoint Source | Read and write | ||||
| P-45 PI Digital Setpoint | Read and write | ||||
| P-46 PI Feedback Source | Read and write | ||||
| P-47 Analog Input 2 Signal Format | Read and write | ||||
| P-48 Standby Mode Timer | Read and write | ||||
| P-49 PI Wake Up Error Level | Read and write | ||||
| P-50 Output Relay Hysteresis | Read and write | ||||
| P-51 Motor Control Mode | Read and write | ||||
| P-52 Motor Parameter Autotune | Read and write | ||||
| P-53 Vector Mode Gain | Read and write | ||||
| P-54 Maximum Current Limit | Read and write | ||||
| P-55 Motor Stator Resistance | Read and write | ||||
| P-56 Motor Stator d-axis Inductance | Read and write | ||||
| P-57 Motor Stator q-axis Inductance | Read and write | ||||
| P-58 DC Injection Speed | Read and write | ||||
| P-59 DC Injection Current | Read and write | ||||
| P-60 Motor Overload Management | Read and write | ||||
| P-63 Modbus Mode Selection | Read and write |
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Use cases
- Show frequency, motor current and power of every pump or fan drive on one dashboard.
- Send an e-mail when the trip code changes from No fault, for example on over current or DC bus over voltage.
- Keep a history of motor current and heatsink temperature to spot a pump or bearing that starts to wear.
- Change the speed setpoint of a fan or pump from ModbusCloud without a visit on site.
- Read the kWh meter and run hours per drive to report energy use and plan maintenance.
Installation
Connect pin 7 (RS485-), pin 8 (RS485+) and pin 3 (0 V) of the RJ45 port on the drive to the RS485 port of the ModbusCloud Gateway. Terminate both ends of the bus.
Set the drive address and baud rate in P-36 (default address 1, 115200 baud). For control over Modbus also set P-12 to 3 or 4.
In ModbusCloud, add a Modbus device with the same address and serial settings (8 data bits, no parity, 1 stop bit) and import this template.
Check that output frequency, DC bus voltage and drive status show plausible values.
Things to watch for
The drive does not answer. What should I check?
Compare address and baud rate in P-36 with the settings in ModbusCloud; the factory speed is 115200 baud, 8 data bits, no parity, 1 stop bit. Check that you use pins 7 and 8 of the RJ45 port, not 4 and 5, which are for the keypad and PC. Plug the cable into the drive only, never into an Ethernet port.
I write the control word but the motor does not start.
The drive only takes run commands over Modbus when P-12 is 3 or 4, and digital input 1 must be closed as hardware enable. With P-31 set to a terminal start option the keypad and fieldbus start commands are ignored. Bit 0 is run, bit 2 resets a fault.
The drive trips with a Modbus comms loss fault.
P-36 index 3 sets a watchdog: when no valid message arrives within that time the drive trips or coasts to stop. Poll at least one register faster than the timeout, or set the watchdog to 0 when the drive does not need it. P-63 decides whether messages for other addresses also count.
Several drives on one bus answer at the same time.
Every drive leaves the factory with address 1. Give each drive its own address in P-36 index 1 before you connect them to the same RS485 line, and add each one in ModbusCloud as a separate device.
What should I keep in mind when writing parameters?
Parameter values go straight into the drive and change how the motor runs. Some parameters use an internal scaling, so read the current value first and compare it with the drive display before you write. Some cannot be changed while the drive is running, and P-52 starts an autotune at once.
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