Epson EM07ZS1647F User Manual page 135

4.2. 2.1.4 Slave: Physical Error
♦ Process Flowchart
Check
No Problem
No
♦ Causes of Error
Possible Cause
Electrical surges
of device power
supply
Broken unit
Fieldbus I/O Rev.6
Master LED Condition
Absent Slave LED Condition
(Physical error)
5
Measure voltage of all
slave power supplies.
No problem
Replace the unit.
Normal Communication?
No
Consult the PROFIBUS manufacturer.
Measure voltage of device
power supply at the trouble
unit.
→ It should be within the
range of sufficient voltage
for device operation.
Replace the trouble unit with
a new one.
→ Verify whether the
problem is fixed.
4. Troubleshooting (PROFIBUS DP)
Light OFF
Red Light ON
Problem exists. (Fix it.)
Yes
Examination Method
BF ST
Red Light Blinking
No Matter
Finish
Countermeasure
Check voltage of the
device power supply.
Replace the unit with a
new one.
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