What to do if GE AF-70 LP displays CANopen comms loss trip?
If the GE Inverter shows a CANopen comms loss trip, check the incoming CAN connection cable and ensure that cyclic communications take place within the timeout limit set in H-36 Index 3.
Why GE AF-70 LP Inverter shows Under voltage on DC bus?
An 'Under voltage on DC bus' error on your GE Inverter indicates that the incoming supply voltage is too low. This often occurs when power is removed from the drive. However, if it happens during operation, check the incoming power supply voltage and all components in the power feed line to the drive.
How to fix Power stage trip on GE Inverter?
To address a power stage trip on the GE Inverter, check for short circuits on the motor and connection cable.
What causes Motor Thermal Overload (I2t) on GE AF-70 LP?
The GE Inverter trips with a 'Motor Thermal Overload (I2t)' when it has delivered >100% of the value set in F-08 for an extended period, preventing motor damage.
How to resolve Output Fault on GE AF-70 LP?
An Output Fault on the GE Inverter suggests a problem on the drive's output, such as a missing phase or imbalanced motor phase currents. Inspect the motor and its connections.
Why GE Inverter shows Over voltage on DC bus?
If the GE Inverter displays an 'Over voltage on DC bus' error, verify that the supply voltage is within the drive's allowed tolerance. If the fault occurs during deceleration or stopping, increase the deceleration time in F-04 or install a suitable brake resistor and activate the dynamic braking function with H-34.
What to do if GE AF-70 LP reports 4-20mA Signal Lost?
If the GE Inverter indicates a 4-20mA Signal Lost, check the analog input connection(s).
What does Optibus comms loss mean on GE Inverter?
If the GE Inverter indicates an Optibus comms loss, check the communication link between the drive and external devices, and ensure each drive in the network has a unique address.
What to do if GE Inverter displays Modbus comms loss fault?
If the GE Inverter displays a Modbus comms loss fault, check the incoming Modbus RTU connection cable and ensure that at least one register is being polled cyclically within the timeout limit set in H-36 Index 3.
What to check if GE Inverter shows DC bus ripple too high?
If the GE Inverter indicates that the DC bus ripple is too high, check that all incoming supply phases are present and balanced.
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