7-3
Trips and Fault Finding
650G AC Drive
ID
Trip Name
Possible Reason for Trip
12 DISPLAY/KEYPAD
Keypad has been disconnected from drive whilst drive is
running in Local Control:
Keypad accidentally disconnected from drive (indicated
over Comms, or by second keypad)
13 LOST COMMS
Lost communications:
COMMS TIMEOUT parameter set too short
Master device failed
Wiring broken
Incorrect Comms setup
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
16 AMBIENT
TEMP
Ambient temperature:
The ambient temperature in the drive is too high
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
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