Trips and Fault Finding
7-4
650G AC Drive
ID
Trip Name
Possible Reason for Trip
35 MAIN VOLTS LOW
The mains input voltage is not sufficient to carry out the
Autotune. Re-try when the mains has recovered.
36 NOT AT SPEED
The motor was unable to reach the required speed to carry
out the Autotune. Possible reasons include:
motor shaft not free to turn
the motor data is incorrect
37 MAG CURRENT
FAIL
It was not possible to find a suitable value of magnetising
current to achieve the required operating condition for the
motor. Check the motor data is correct, especially
nameplate rpm and motor volts. Also check that the motor is
correctly rated for the drive.
38 NEGATIVE SLIP F
Autotune has calculated a negative slip frequency, which is
not valid. Nameplate rpm may have been set to a value
higher than the base speed of the motor. Check nameplate
rpm, base frequency, and pole pairs are correct.
39 TR TOO LARGE
The calculated value of rotor time constant is too large.
Check the value of nameplate rpm.
40 TR TOO SMALL
The calculated value of rotor time constant is too small.
Check the value of nameplate rpm.
41 MAX RPM DATA
ERR
This error is reported when the MAX SPEED RPM is set to a
value outside the range for which Autotune has gathered
data. Autotune gathers data on the motor characteristics up
to 30% beyond “max speed rpm”. If MAX SPEED RPM is later
increased beyond this range, the drive had no data for this
new operating area, and so will report an error. To run the
motor beyond this point it is necessary to re-autotune with
MAX SPEED RPM set to a higher value.
42 LEAKGE L
TIMEOUT
The motor must be stationary when starting the Autotune
43 MOTOR TURNING
ERR
The motor must be able to rotate during Autotune
44 MOTOR STALL ERR
The leakage inductance measurement requires a test current
to be inserted into the motor. It has not been possible to
achieve the required level of current. Check that the motor is
wired correctly.
- Product Code Error
Switch unit off/on. If persistent, return unit to factory
- Calibration
Data
Error
Switch unit off/on. If persistent, return unit to factory
- Configuration
Data
Error
Press the
key to accept the default configuration. If
persistent, return unit to factory
