Epson EM07ZS1647F User Manual page 133

4.2.2.1.3 Slave: Uninitialized Network
♦ Process Flowchart
Check
No Problem
No Problem
- Unconnected or loose connector/signal wire
No Change
No
Fieldbus I/O Rev.6
Master LED Condition
Absent Slave LED Condition
(Uninitialized Network)
4
Measure voltage of all
slave power supplies.
No problem
Check the following:
- Unconnected terminating resistor
- Cable disconnection
No problem
Replace moving cable.
(Replace deteriorated cable).
No change
Replace the unit.
Normal Communication?
No
Consult the PROFIBUS manufacturer.
4. Troubleshooting (PROFIBUS DP)
BF
Light OFF
Light OFF
Problem exists. (Fix it.)
Problem exists. (Fix it.)
See 4.2.3.1 and 4.2.3.2.
The problem is fixed.
Yes
ST
Red Light Blinking
Light OFF
Finish
121