Rockwell Automation 1336 8A-48A Fiber Industry - Manual (Page 118)

6–6 Troubleshooting
Name & Fault # Action Description
Serial Fault
10 A SCANport adapter has been
disconnected and the [Logic
Mask] bit for that adapter is set
to “1.” 1. If no adapter was intentionally
disconnected, check wiring to
the SCANport adapters. Re-
place wiring, SCANport expan-
der, SCANport adapters, Main
Control Board or complete
drive as required.
2. If an adapter was intentionally
disconnected and the [Logic
Mask] bit for that adapter is set
to “1”, this fault will occur. To
guard against this fault occur-
ring, set the [Logic Mask] bit for
the adapter to “0.”
Sync Loss Fault
67 Synchronous motor pulled out
of sync. Replace the load. Check the
motor or process.
Temp Sense Open
55 Heat sink thermistor is open or
malfunctioning. Check thermistor and
connections.
Undervolt Fault
04 DC Bus voltage fell below the
minimum value (388V DC at
460V AC input). [Line Loss
Fault] and [Low Bus Fault] set
to “enabled.” Monitor the incoming AC line for
low voltage or line power
interruption.
UV Short Fault
41 Excessive current has been
detected between these two
output terminals. Check the motor and external
wiring to the drive output terminals
for a shorted condition.
UW Short Fault
42 Excessive current has been
detected between these two
output terminals. Check the motor and external
wiring to the drive output terminals
for a shorted condition.
VW Short Fault
43 Excessive current has been
detected between these two
output terminals. Check the motor and external
wiring to the drive output terminals
for a shorted condition.
Xsistr Desat Flt
47
(Frame Size C & Above)
One or more of the output
transistors were operating in
the active region instead of
desaturation. This can be
caused by excessive transistor
current or insufficient base
drive voltage. Check for damaged output
transistors. Replace output
transistors, Power Driver Board or
complete drive as needed.