Chapter 15 CANopen Communication Module AH10COPM
15-35
15.6 Error Diagnostics and Troubleshooting
15.6.1 LED Indicators and Troubleshooting
AH10COPM-5A has two LED indicators—a RUN LED indicator and an ERROR LED indicator. The
LED indicators indicate the current states of the module.
RUN LED indicator
The light is OFF.
disconnected.
Check whether the AH500 system used is
powered.
The green light
flashes once.
AH10COPM-5A stops
running.
AH10COPM-5A is downloading a network
configuration, and waits to complete the
downloading of the network configuration.
The green light
blinks.
AH10COPM-5A is
ready to operate.
If the green light is blinking when the AH500
series CPU module is running, users have to
1. check whether the bus cable on the
CANopen network created is connected
correctly.
2. check whether the serial communication
speed of the master station selected is
the same as the serial communication
speeds of the other slave stations.
3. check whether the slave stations
configured are connected to the network
created.
4. check whether slave stations are offline.
ON.
operational.
No solution is required.
Difference between the green light which flashes once and the green light which blinks:
ON
OFF
The green light flashes once.
200 ms
200 ms
1000 ms
ON
OFF
The green light blinks.
200 ms
200 ms
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