Installation manual

Publication 1394-IN002B-EN-P — February 2004
Troubleshooting Status Indicators 4-7
SERCOSFault
(SERCOS Same Addr)
Duplicate node address detected on SERCOS ring.
Verify that each SERCOS drive is assigned a
unique node address.
DriveOvervoltage
Fault
(Shunt Time Out)
Shunt resistor continuous
rating exceeded.
The regenerative energy produced by the motor
exceeded the limit of the shunt resistor.
• Use a properly sized shunt or modify duty
cycle of the application.
• System uses internal shunt and requires
external shunt for additional capacity.
DriveOvertemp
Fault
(Sys Overtemp)
The 1394 thermal sensor
tripped when internal
ambient temperature
exceeded rating.
The fan on the system module or an axis module
failed.
Replace the system or axis module.
The cabinet ambient temperature is above rating. Check the cabinet temperature.
The machine duty cycle requires an RMS current
exceeding the continuous rating of the controller.
Change the command profile to reduce speed
or increase time.
Changes in mechanics have occurred causing an
increased torque output for the application move
profiles.
• Check mechanics for improper operation.
• Verify operating torque.
The airflow access to the 1394 is limited or
blocked.
Check airflow and re-route cables away from
the 1394.
DriveHardFault
(Sys Mod Unknown)
Active when serial ring
detects unknown system
module.
Unknown system module. Replace the system module.
DriveHardFault
(Task Init)
Software initialization fault
detected.
Control board hardware failure.
• Cycle all input power.
• If fault persists, replace system module.
DriveHardFault
(Unknown Fault)
Fault is detected but source
is unknown.
Wrong version of software for the hardware or
loose internal or external connection.
• Check system terminator.
• Reset drive.
Fault Message
RSLogix (HIM):
Description: Potential Cause is: Possible Resolution is: