Rockwell Automation 1397 DC Drive Firmware 2.xx User Manual

Page 214

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6–4

Troubleshooting

Publication 1397-5.0 — June, 2001

Fault No.

Fault Name

Description

Action

008

“Motor Over Temp”

The motor thermostat is indicating a high temperature, or
if no motor thermostat is installed, the customer terminal
board pins 13 and 14 have not been jumpered correctly to
inhibit this fault:
Other possible causes Include:
• Damaged thermostat or disconnected wiring

• Inadequate ventilation

• Blower Motor Malfunction

• Incorrect blower rotation

• Blocked ventilation slots

• Clogged filters

• Excessive armature current

• One or more thyristors inoperable

Check filters, blowers and thermostat,
repairing or replacing as necessary.
Replace thyristors if necessary.
Check motor ventilation and provide
additional air movement or cooling if
necessary.

009

“Cntlr Over Temp”

The Controller thermostat is indicating an overtemperature
condition possibly due to:
• Inadequate heat sink ventilation

• Inadequate cabinet ventilation

• Heat sink fan malfunction

• Damaged, disconnected or improperly connected
thermostat wiring

Check the fan and thermostat
repairing or replacing as necessary.
Check cabinet & heat sink ventilation
and provide additional air movement
or cooling as required.

010

“AC Line Sync Flt”

Three–phase AC line synchronization circuit malfunction
possibly due to:
• Blown AC line fuses (s)

• AC line frequency outside the required range of
48–62Hz
• Excessive AC line noise or distortion

• Unstable AC line frequency

• Disconnected, improperly connected or damaged J6
ribbon cable

Check all cables and connections.
Replace blown line fuses if necessary.
Line filters or a transformer may be
necessary to cure line frequency or
noise problems.

011

“Arm Over Voltage”

Armature voltage exceeded 130% of Motor Arm Volts
(Par 046) due to:
• Motor Arm Volts not set properly

• Improper voltage loop tuning

• [E–Fld Volts Adj] (Par 272) set too high
(Enhanced Field Supply only).

Reset Parameters 44 and 272 if
necessary. Rerun Voltage Loop
Tuning if required.

012

“CAN Comm Lost”

Drive to Drive or Drive to Control communication lost.

Check attached communication
peripherals for proper operation.
Replace if necessary.

015

“SCR #1 Open Flt”

Indicates SCR number 1 is non–operational