239-0273

Check PAE Module Status LEDs

Examine the PAE module status indicators. Green LED should be solid, red LED should be off during normal operation.

Ensure machine is in emergency stop before opening electrical cabinet

Verify EnDat Cable Connections

Check all EnDat encoder cables between PAE module and motor encoders for secure connections and proper shielding continuity.

Use a multimeter to verify shield continuity - resistance should be less than 1 ohm

Monitor Cycle Time in MOD Function

Access MOD > System Info > Communication and check PAE communication cycle times for values exceeding 4ms.

Normal cycle times should be 2-3ms consistently

Reset PAE Module

Power cycle the PAE module by removing 24V supply for 10 seconds, then restore power and monitor alarm status.

Access FS Communication Parameters

Navigate to MOD > Machine Parameters > Safety Parameters and verify MP7760.x (FS communication timeout) settings match PAE specifications.

Default timeout should be 8ms for standard PAE modules

Check Axis Assignment Parameters

Verify MP1010.x (axis assignment) parameters correctly map physical axes to PAE module channels.

Incorrect axis mapping can cause severe machine damage

Validate EnDat Configuration

Check MP6310.x (encoder type) and MP6320.x (encoder resolution) parameters match actual encoder specifications on each axis.

Perform Parameter Backup and Restore

Create parameter backup via MOD > Data Management, then restore known good configuration if available.

Check Encoder Signal Quality

Access MOD > Diagnosis > Encoder and monitor signal amplitude and error counters for each axis encoder.

Signal amplitude should be 0.6-1.2V differential, error count should remain at zero

Inspect Encoder Cable Routing

Verify encoder cables are routed away from power cables and through proper cable management with minimum bend radius of 10x cable diameter.

Test Encoder Cable Continuity

Disconnect encoder cables and test continuity of data lines (typically pins 1,2,3,4) and shield connection using multimeter.

Power off PAE module before disconnecting encoder cables

Clean Encoder Scale/Disk

For linear encoders, clean the glass scale with isopropyl alcohol. For rotary encoders, check for contamination on encoder disk.

Perform PAE Self-Diagnostic

Access MOD > Diagnosis > Drive Diagnosis and run comprehensive PAE module self-test routine.

Self-test should complete without errors in under 30 seconds

Check PAE Module Temperature

Monitor PAE module temperature via diagnostic display - should remain below 70°C during operation.

Verify Power Supply Voltages

Measure 24VDC supply to PAE module - should be 24V ±10% with less than 2V ripple under load.

Use proper PPE when measuring voltages in live electrical panels

Document Module Serial Numbers

Record PAE module part number and serial number from module label for replacement ordering.

Monitor System Resources

Check MOD > System Info > Performance for CPU utilization and memory usage - CPU should remain below 80%.

Review Active Background Tasks

Access MOD > System Info > Tasks to identify any high-priority processes consuming excessive resources.

Clear System Event Log

Navigate to MOD > System Info > Event Log and clear old entries that may be consuming memory resources.

Export log file before clearing for future reference

Restart TNC Control System

Perform controlled shutdown via MOD > System Shutdown, wait 30 seconds, then power on to clear memory leaks.