Parker AC890PX Series, Engineering Reference

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C h a p t e r 8 : T r i p s & F a u l t F i n d i n g
8-5
AC890PX AC Drive
Keypad
Display
Description Possible Reason for Trip
INPUT 2 BREAK
I/O TRIPS:: INPUT 2
BREAK has gone True
Check configuration to determine source of signal
MOTOR STALLED
The motor has stalled
(not rotating)
Motor loading too great
Current limit level is set too low
Stall trip duration is set too low
Fixed or auto boost levels are set too high
INVERSE TIME
The inverse time current limit is active: motor loading is too great;
fixed or autoboost levels are too high (Full Load Current = 150%
for 60 seconds)
BRAKE RESISTOR
External dynamic
braking resistor has been
overloaded
Trying to decelerate a large inertia load too quickly or too often
BRAKE SWITCH
Internal dynamic braking
switch has been
overloaded
Trying to decelerate a large inertia load too quickly or too often
OP STATION
Keypad has been
disconnected from drive
whilst drive is running in
local control
Keypad accidentally disconnected from drive
COMMS BREAK
COMMS BREAK parameter set to True (refer to I/O TRIPS menu
at level 3)
CONTACTOR FBK
The CONTACTOR CLOSED input in the SEQUENCING LOGIC
function block remained FALSE after a run command was issued
SPEED FEEDBACK SPEED ERROR > 50.00% for 10 seconds
AMBIENT TEMP The ambient temperature in the drive is too high