Parker AC890 Product Manual page 212

6511 6901
Keypad Keypad
Display Display
CNTC CONTACTOR FBK
SPD SPEED FEEDBACK
AOT AMBIENT TEMP
OT MOTOR OVERTEMP
890SD Standalone Drive - Frames G, H & J
Description
The motor temperature is
too high
Trips and Fault Finding
Possible Reason for Trip
 The CONTACTOR CLOSED input in the
SEQUENCING LOGIC function block remained
FALSE after a run command was issued
 SPEED ERROR > 50.00% for 10 seconds
 The ambient temperature in the drive is too high
 Excessive load
 Motor voltage rating incorrect
 FIXED BOOST and/or AUTO BOOST set too high
 Prolonged operation of the motor at low speed
without forced cooling
 Check setting of INVERT THERMIST parameter in
I/O TRIPS menu at level 3.
 Break in motor thermistor connection
9-7
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