650 Series AC Drive
ID
Trip Name
3
OVERCURRENT
4
HEATSINK
5
EXTERNAL TRIP
6
INVERSE TIME
7
CURRENT LOOP
8
MOTOR STALLED
9
ANIN FAULT
12
DISPLAY/KEYPAD
13
LOST COMMS
14
CONTACTOR FBK
17
MOTOR
OVERTEMP
Trips and Fault Finding
Possible Reason for Trip
The motor current being drawn from the drive is too high:
Trying to accelerate a large inertia load too quickly;
ACCEL TIME time too short
Trying to decelerate a large inertia load too quickly;
DECEL TIME time too short
Application of shock load to motor
Short circuit between motor phases
Short circuit between motor phase and earth
Motor output cables too long or too many parallel
motors connected to the drive
FIXED BOOST level set too high
Drive heatsink temperature > 100ºC:
The ambient air temperature is too high
Poor ventilation or spacing between drives
The external trip input is high:
Check configuration to identify the source of the signal
(non-standard configuration)
A prolonged overload condition, exceeding the Inverse Time
allowance, has caused the trip:
Remove the overload condition - refer to Chapter 5:
A current of less than 1mA is present when 4-20mA setpoint
is selected:
Look for a wire break
The motor has stalled (not rotating) Drive in current limit
>200 seconds:
Motor loading too great
FIXED BOOST level set too high
AIN2 overload on terminal 3:
Overcurrent applied in Current mode to terminal 3
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)
Lost communications:
COMMS TIMEOUT parameter set too short
Master device failed
Wiring broken
Incorrect Comms setup
Contactor feedback signal lost:
Check connection to the terminal wired to "contactor
closed" parameter in Sequencing Logic (non-standard
configuration)
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
7-2
P
12