Rockwell Automation SP600 AC Drive User Manual Version 1.0 User Manual
Page 248
 
13-16
SP600 AC Drive User Manual
SW 
OverCurrent
36
The drive output current 
has exceeded the 
software current.
Check for excess load, 
improper DC boost setting. 
DC brake volts set too 
high.
Trnsistr 
OvrTemp
9
Output transistors have 
exceeded their 
maximum operating 
temperature.
1. Check for blocked or
dirty heat sink fins. 
Verify that ambient 
temperature has not 
exceeded 40
°C (104°F)
for NEMA Type 1 
installations or 50°C 
(122°F) for Open type 
installations.
2. Check fan.
UnderVoltage
4
DC bus voltage fell 
below the minimum 
value of 375V DC at 
575V input, 300V DC at 
400/480V input or 160V 
DC at 200/240V input.
Enable/disable with 
Fault Config 1(233).
Monitor the incoming AC 
line for low voltage or 
power interruption.
UserSet1 
Chksum
101
The checksum read 
from the user set does 
not match the checksum 
calculated.
Re-save user set.
UserSet2 
Chksum
102
UserSet3 
Chksum
103
Table 13.6 – Fault Descriptions and Corrective Actions (Continued)
Fault
No.
Ty
p
e
Description
Action