Epson EM07ZS1647F User Manual page 108

4. Troubleshooting (DeviceNet)
4.1.2.6 Uninitialized Network
Master Unit LED
Light OFF Light OFF Uninitialized network
♦ Process Flowchart
Check
No Problem
No Problem
No Problem
No Problem
96
MS NS
Absent slave
9
Measure voltage of
communications power supply
at the master unit.
No problem
Check the following:
- Unconnected terminating resistor
- Unconnected or loose connector/signal wire
- Cable disconnection
No problem
Check that power is supplied to all slaves.
No problem
Check for master unit configuration.
No problem
Replace the master unit.
Error
- Master unit start-up error
- No slave (Error detection before
communication establishment)
- Communications power supply OFF
Problem exists. (Fix it.)
Problem exists. (Fix it.)
See 4.1.3.1 and 4.1.3.2.
Problem exists. (Fix it.)
Problem exists. (Fix it.)
Description
Finish
Fieldbus I/O Rev.6