Troubleshooting; Fault Messages - Invertek Drives Optidrive Plus 3GV User Manual

8. Troubleshooting
8.1. Fault messages
Fault Code Description
P-def
Factory Default parameters have
been loaded
O-I Instantaneous over current on drive
output.
hO-I
Excess load on the motor.
Over temperature on the drive
heatsink
I. t-trP Drive has tripped on overload after
delivering >100% of value in P1‐08 for
a period of time.
OI-b Brake channel over current
OL-br Brake resistor overload
PS-Trp Fast over current trip
O.Uo1t Over voltage on DC bus
U.Uo1t Under voltage on DC bus
O-t Heatsink over temperature
U-t
Under temperature
th-Flt Faulty thermistor on heatsink.
E-triP External trip (on digital Input 3)
SC-trP Comms loss trip
P-LOSS
Input phase loss trip
Ph-Ib Phase Imbalance
data-F Internal memory fault.
At-F01
At-F02
At-f03
Autotune Failed
At-F04
At-F05
Spin-F Spin Start Failure
Tor-OL
Over torque trip
4-20 F 4‐20mA Input Signal Loss
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Corrective Action
Press STOP key, drive is ready to configure for particular application
If the fault occurs immediately when enabling the drive, disconnect the motor cable from the output
terminals of the drive and restart the drive. If the fault re‐occurs with no motor connected, contact
your local Invertek Sales Partner. If the drive runs correctly with not motor connected, check the
motor, motor cable and any connections or junction boxes for phase – phase and phase – earth short
circuits. Wherever possible, motors and connection cables should be checked with a high voltage
insulation tester (Megga) prior to connection to the drive.
Ensure that no switching devices, such as contactors or local isolators are switching during operation of
the drive.
Check the motor cable length does not exceed the specified maximum
Ensure the motor nameplate parameters are correctly entered, P1‐07, P1‐08, P1‐09. If operating in
Vector mode (P4‐01 – 0 or 1), also check the motor power factor in P4‐05.
Ensure an autotune has been successfully completed for the connected motor.
Check the load mechanically for a jam or stalled condition, or shock loads.
Increase the ramp up time in P1‐03.
If operating in Vector mode (P4‐01 – 0 or 1), reduce the speed loop gain in P4‐03
Check to see when the decimal points are flashing (drive in overload) and either increase acceleration
rate or reduce the load. Check motor cable length is within spec. Ensure the motor nameplate
parameters are correctly entered, P1‐07, P1‐08, and P1‐09. If operating in Vector mode (P4‐01 – 0 or
1), also check the motor power factor in P4‐05. Ensure an autotune has been successfully completed
for the connected motor. Check the load mechanically to ensure it is free, and no jams, blockages or
other mechanical faults exist
Over current in the brake resistor circuit. Check the cabling to the brake resistor. Check the brake
resistor value. Ensure minimum resistance values form the rating tables are observed.
Brake resistor overload. Increase deceleration time, reduce load inertia or add further brake resistors
in parallel, observing the minimum resistance value for the drive in use.
Check wiring to motor, look for ph‐ph or ph‐Earth short circuit. Check drive ambient temp, additional
space or cooling needed?
Check drive is not forced into overload.
Supply problem, or increase decel ramp time P1‐04.
This occurs routinely when power is switched off. If it occurs during running, check power supply
voltage.
Check drive ambient temp. Additional space or cooling required.
Trip occurs when ambient temperature is less than ‐10°C. Temperature must be raised over ‐10°C in
order to start the drive.
Refer to your IDL Authorised Distributor.
E‐trip requested on digital input 3. Normally closed contact has opened for some reason.
If motor thermistor is connected check if the motor is too hot.
Check communication link between drive and external devices. Make sure each drive in the network
has its unique address.
Drive intended for use with a 3 phase supply has lost one input phase. Check incoming supply and
fuses.
Mains incoming supply voltage has an imbalance of >3% for over 30 seconds. Check incoming supply
and fuses
Parameters not saved, defaults reloaded.
Try again. If the problem re‐occurs, refer to your local Invertek Sales Partner.
Measured motor stator resistance varies between phases. Ensure the motor is correctly connected and
free from faults. Check the windings for correct resistance and balance.
Measured motor stator resistance is too large. Ensure the motor is correctly connected and free from
faults. Check that the power rating corresponds to the power rating of the connected drive.
Measured motor inductance is too low. Ensure the motor is correctly connected and free from faults.
Measured motor inductance is too large. Ensure the motor is correctly connected and free from faults.
Check that the power rating corresponds to the power rating of the connected drive.
Measured motor parameters are not convergent. Ensure the motor is correctly connected and free
from faults. Check that the power rating corresponds to the power rating of the connected drive.
Spin start function (P2‐18=1) failed to detect motor speed
Check motor and connections. Ensure motor speed is less than maximum speed (P1‐01). Make sure
motor base frequency (P1‐09) is <100Hz
The user programmable torque limit has been exceeded. Refer to the Optidrive Plus Advanced User
Guide for further information.
The level of the 4‐20mA signal applied to analog input 2 (Terminal 4) has dropped below the minimum
threshold of 3mA. Check for wiring or signal transducer faults
GV
Optidrive Plus 3 User Guide