Owner's manual

1 Troubleshooting
A-5
GL-RHG-M-NOA-E
Appendix
*1 All indicators on the transmitter may turn OFF.


OSSD1 error
OSSD2 error
When the error is cleared by restarting the GL-RHG.
OSSD is affected by external noise.
Check for a noise source (inverter, servomotor,
etc.) around the GL-RHG installation location and
cables.
There is a voltage surge affecting the
OSSD due to an inductive load.
When the load is inductive such as relay, use a
load with a surge absorption device.
The power supply voltage has fallen
continuously or experienced a sudden
drop.
Take measures by replacing the power supply,
increasing the power capacity, or dedicating the
power supply to the GL-RHG.
When the error is not cleared by restarting the GL-RHG.
OSSD is short-circuited to 0 V or 24 V
of power supply.
OSSDs are short-circuited to each
other.
OSSD is short-circuited to other wires.
Rewire the OSSD correctly.
"Examples of Wiring" (page 4-7)
Too much current is flowing through
the OSSD.
Check that the load does not consume more
current than the OSSD can handle.
"Specifications" (page 7-3)
OSSD is broken. Replace the receiver.

Sub unit error
The sub unit is broken. Replace the sub unit.
When the error is cleared by restarting the GL-RHG.
The sub unit or series connection
cable is affected by external noise.
Check for a noise source (inverter, servomotor,
etc.) around the GL-RHG installation location and
cables.

Communication
error
*1
When the error is cleared by restarting the GL-RHG.
The synchronization wire is not wired
correctly or is disconnected.
Check the connection of the synchronization wire.
The synchronization lines in the cable
are affected by external noise.
Check for a noise source (inverter, servomotor,
etc.) around the GL-RHG installation location and
cables.
The power supply voltage has fallen
continuously or experienced a sudden
drop.
Take measures by replacing the power supply,
increasing the power capacity, or dedicating the
power supply to the GL-RHG.
When the error is not cleared by restarting the GL-RHG.
The synchronization wire or series
connection cable is not connected
correctly or is disconnected.
Check the connection of the synchronization wire.
The connection with the GL-RHG in
series is broken.
Replace the GL-RHG unit connected in series.
"Series connection" (page 2-3)
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:

System error
The power supply voltage has fallen
continuously or experienced a sudden
drop.
Take measures by replacing the power supply,
increasing the power capacity, or dedicating the
power supply to the GL-RHG.
The GL-RHG is broken. Replace the GL-RHG.
Indication Error name Cause Check and corrective action