MICRONOR
automation components
5. Troubleshooting
The following are potential issues and recommended solutions when troubleshooting the
MR361 Fiber Optic Encoder Link system. For issues not listed, please contact Micronor Sales.
5.1.
Potential Issues & Solutions
5.1.1. XMTR Power Green LED not ON when controller powered
•
Verify solid electrical connection between wires and screw terminal for both +Uin/+Vin
and GND.
•
Verify that external power supply is rated correctly for the encoder being used and
connected
•
Contact Micronor Sales for further assistance.
5.1.2. RCVR Link Status LED not ON when controller powered
•
Verify solid electrical connection between wires and screw terminal for both +Uin/+Vin
and GND.
•
Verify that external power supply is rated correctly for the drive inputs.
•
Contact Micronor Sales for further assistance.
5.1.3. RCVR Link Status LED Blinks
•
Verify optical link cabling is properly connected and undamaged. A visual fault finder
is an inexpensive tool for verifying continuity.
•
Measure RCVR end of link with an optical power meter. Should read at least -24 dBm.
•
Verify that the entire fiber optic system does not exceed system loss margin
specifications. Use either an optical power meter or OTDR to trace the link.
•
Clean all fiber optic connector surfaces using appropriate cleaning materials.
•
Contact Micronor Sales for further assistance.
5.1.4. RCVR Encoder Outputs not working but both LEDs On
•
If accessible, verify outputs of Encoder using oscilloscope
•
Verify A/B/C/D inputs to XMTR module using oscilloscope
•
Verify A/B/C/D outputs of RCVR module using oscilloscope
•
Contact Micronor Sales for further assistance.
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