Moog ACV with CANopen bus interface
8 Diagnostics
Troubleshooting
B99224-DV018-D-211, Rev. A, October 2018
289
8.4.1.36 0x43: Spool position control monitoring
8.4.1.37 0x45: Event handler exception
8.4.1.38 0x4A…0x4D: Local CAN RPDO1…RPDO4 time out
Error Code:
0x43
Error Name:
Spool position control monitoring
Description:
A spool position control monitoring fault is detected. The actual spool position control
deviation exceeds the adjusted limits (for example, due to particles or pollution).
Severity of error:
Application specific
Action:
• Check adjusted deviation limits
• Flush valve with clean oil at low pressure
• Switch to open loop operation and move spool end stop to end stop
• Shake the valve at low pressure with sweeping sine and/or square signal
For Pilot operated valves:
• Check pressure levels
For Pilot operated valve with external pilot pressure:
• Check external pilot pressure level
• Check external pilot pressure availability
In order to make a customer configured fault reaction working, the position monitoring must be
switched on.
On two stage valves, the main stage is monitored.
Chapter "7.15.1 Spool position control deviation monitoring", page 233
Error Code:
0x45
Error Name:
Event handler exception
Description:
A general event handler fault is detected.
Severity of error:
Minor
Action:
• Check the event handler expression for illegal operations
• Clear all event handler expressions
• Restart the valve
If the error still occurs after restarting the valve, send the valve back to factory for
service.
Error Code:
0x4A…0x4D
Error Name:
Local CAN RPDO1…RPDO4 time out
Description:
A timeout on Local CAN Receive PDO 1…4 occurred.
Chapter "6.9 Local CAN", page 102
Severity of error:
Minor
Action:
• Check cable and cable connection
• Check Local CAN communication interface settings
• Check Local CAN RPDO timeout settings
