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Chapter 6
Error indication and Countermeasure
6.6
Troubleshooting
The procedure about troubleshooting is shown by the following flow chart.
(1) POW LED : as turning off (5V DC power abnormality).
a) Connection between the remote module and base
unit.
b) Check connecter of remote module for base.
(2) HERR LED lights (hardware abnormality).
It is thought the temporary error by the
noise. Please investigate, and confirm the
noise source.
POW LED lit
POW LED
of the power module is lit
Y
Check the remote module
HERR LED lights
Setting of rotary switch
is correct
Y
It occurs even if turning on
power supply again
N
N
Check the power supply module
a) AC power supply voltage (at the input terminal)
b) Capacity of power supply module
c) DC power supply voltage (at the output terminal)
d) Supply power only for the power supply module
e) Connection between the power module and base
unit
N
Set rotary switch correctly.
Refer to Chapter 3 for details.
Y
Please exchange the remote module.
6 – 6
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