7-4
Trips and Fault Finding
650S AC Drive
ID
Trip Name
Possible Reason for Trip
5 EXTERNAL
TRIP
The external trip input is high:
•
Check configuration to identify the source of the signal (non-standard
configuration)
6 INVERSE
TIME
A prolonged overload condition, exceeding the Inverse Time allowance, has
caused the trip:
•
Remove the overload condition - refer to Chapter 5:
P
12
7 CURRENT
LOOP
A current of less than 1mA is present when 4-20mA setpoint is selected:
•
Look for a wire break
8 MOTOR
STALLED
The motor has stalled (not rotating)
•
SV trip validated, and speed lower than 5% of the maximum motor speed
•
Too much friction to start rotating the motor
9 ANIN
FAULT
AIN2 overload on terminal 3:
•
Overcurrent applied in Current mode to terminal 3
10 BRAKE RESISTOR
External dynamic brake resistor has been overloaded:
•
Trying to decelerate a large inertia too quickly or too often
11 BRAKE SWITCH
Internal dynamic braking switch has been overloaded:
•
Trying to decelerate a large inertia too quickly or too often
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)
