7-3
Trips and Fault Finding
650G AC Drive
ID
Trip Name
Possible Reason for Trip
14 CONTACTOR
FBK
Contactor feedback signal lost:
Check connection to the terminal wired to "contactor
closed" parameter in Sequencing Logic (non-standard
configuration)
15 SPEED
FEEDBACK
Speed feedback:
SPEED ERROR > 50.00% for 10 seconds
17 MOTOR
OVERTEMP
The motor temperature is too high:
Excessive load
Motor voltage rating incorrect
FIXED BOOST level set too high
Prolonged operation of the motor at low speed without
forced cooling
Break in motor thermistor connection
18 CURRENT LIMIT
Software overcurrent trip:
If the current exceeds 180% of stack rated current for a
period of 1 second, the drive will trip. This is caused by
shock loads. Remove the shock load.
ACCEL TIME and/or FIXED BOOSTset too high
DECEL TIME set too low
21 LOW SPEED OVER I
The motor is drawing too much current (>100%) at zero
output frequency:
FIXED BOOST level set too high
22 10V FAULT
10V fault:
+10V REF overload warning (terminal 4) -
10mA maximum
25 DC LINK RIPPLE
The dc link ripple voltage is too high:
Check for a missing input phase
27 OVERSPEED
Overspeed:
>150% base speed when in Sensorless Vector mode
28 ANOUT FAULT
AOUT overload on terminal 5:
10mA maximum
29 DIGIO 1 (T9)
FAULT
DIN3 overload on terminal 9:
20mA maximum
30 DIGIO 2 (T10)
FAULT
DOUT2 overload on terminal 10:
50mA maximum
31 UNKNOWN
Unknown trip
32 OTHER
"OTHER" trip is active (Trip ID 34 to 44 inclusive)
34 MAX SPEED LOW
During Autotune the motor is required to run at the
nameplate speed of the motor. If MAX SPEED RPM limits the
speed to less than this value, an error will be reported.
Increase the value of MAX SPEED RPM up to the nameplate
rpm of the motor (as a minimum). It may be reduced, if
required, after the Autotune is complete.
