11-8 Trips & Fault Finding
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
Keypad
Keypad
Description Possible Reason for Trip
I HI CURRENT LIMIT V/Hz mode only: If the
current exceeds 180% of
induction stack rated
current for a period of 1
second, the drive will trip.
This is caused by shock
loads
♦ Remove the cause of the shock load
A24SC 24V FAILURE The 24V customer output
has fallen below 17V
♦ 24V customer output is short circuited
♦ Excessive loading
LSPD LOW SPEED OVER I The motor is drawing too
much current (>100%) at
zero output frequency
♦ FIXED BOOST and/or AUTO BOOST set too high
(refer to FLUXING menu at level 3)
PHAS PHASE FAIL
♦ One or more input phases not present
ENC 1 FBK ENCODER FAIL
SHRT DESAT (OVER I)
♦ Instantaneous overcurrent. Refer to
OVERCURRENT in this table
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