12-14
SP600 AC Drive User Manual
Heatsink
OvrTemp
8
➀
Heatsink temperature
exceeds a predefined
value of 90
°
C (195
°
F).
1. Check for blocked or
dirty heat sink fins.
Verify that ambient
temperature has not
exceeded 40
°
C (104
°
F)
NEMA Type 1 installations
or 50°C (122°F) for Open
type installations.
2. Check fan.
HW
OverCurrent
12
➀
The drive output current
has exceeded the
hardware current limit.
Check programming.
Check for excess load,
improper DC boost setting,
DC brake volts set too
high or other causes of
excess current.
Motor dynamics cannot be
accommodated by
autotuning. Manual tuning
of the current loop
required. Consult technical
support.
Check motor lead wiring.
Incompat
MCB-PB
106
➁
Drive rating information
stored on the power
board is incompatible
with the Main Control
board.
Load compatible version
files into drive.
I/O Comm
Loss
121
➁
Loss of communication
to I/O board.
Cycle power.
I/O Board Fail
122
Board failure.
1. Cycle power.
2. If fault repeats, replace
I/O board
I/O Mismatch
120
Incorrect I/O board
identified.
Restore I/O board to
original configuration, or If
new configuration is
desired, reset fault.
IR Volts
Range
77
The drive autotuning
default is Calculate and
the value calculated for
IR Drop Volts is not in
the range of acceptable
values.
Re-enter motor nameplate
data.
Table 12.7 – Fault Descriptions and Corrective Actions (Continued)
Fault
No.
Ty
p
e
Description
Action
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