Rockwell Automation 1336S Plus FRN 1.xx-5.xx - Manual (Page 138)

6–6 Troubleshooting
Name & Fault # Action Description
Reprogram Fault
48 The drive was commanded to
write default values to
EEPROM. 1. Clear the fault or cycle power to
the drive.
2. Program the drive parameters
as needed.
Important: If [Input Mode] has
been changed from its original
value, power must be cycled before
the new value will take affect.
ROM or RAM Flt
68 Internal power-up ROM or RAM
tests have not executed
properly. Check Language Module. Replace
Control Board or complete drive as
required.
Run Boost Fault
34 An attempt has been made to
set the [Run Boost] parameter
to a value greater than the
[Start Boost] parameter. Verify that parameter has been
programmed correctly.
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.”
Shear Pin Fault
63 Programmed [Current Limit]
amps has been exceeded and
[Shear Pin Fault] is enabled. Check load requirements and
[Current Limit] setting.
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.