Epson EM07ZS1647F - Manual (Page 135)

4. Troubleshooting (PROFIBUS DP)
4.2. 2.1.4 Slave: Physical Error
BF ST
Master LED Condition Light OFF Red Light Blinking
Absent Slave LED Condition
(Physical error)
Red Light ON No Matter
♦ Process Flowchart
5
† No Problem
Check
Finish
Measure voltage of all
slave power supplies.
† No
Problem exists. (Fix it.)
No problem
Replace the unit.
Yes
No
Consult the PROFIBUS manufacturer.
Normal Communication?
♦ Causes of Error
Possible Cause Examination Method Countermeasure
{ Electrical surges
of device power
supply
Measure voltage of device
power supply at the trouble
unit.
→ It should be within the
range of sufficient voltage
for device operation. Check voltage of the
device power supply.
{ Broken unit Replace the trouble unit with
a new one.
→ Verify whether the
problem is fixed. Replace the unit with a
new one.
Fieldbus I/O Rev.6 123