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6. Troubleshooting and
Maintenance
Preventive Maintain
•
Periodic check for loose connection
ATTENTION: To avoid electircal shock or unintended operation of
the module, remove incoming power before checking connections.
Using the LED Indication
The LED provides status information on Modules operation. The
troubleshooting about shows LED indicator. It also shows how to
use the LED to detect and correct common operating problems.
LED
OFF
ON(RED)
Flashing
Other Malfunctions
Problem
Do not
function
What it Means:
1. Module is not receiving input
power by loosing wiring.
1. Normal receiving state.
1. Normal transmitting state.
What it Means:
1. Loose wiring
2. Incorrect DIP switch setting
What to do:
1. Check
cable connections, and
cable
terminal block.
1. No action required.
1. No action required.
What to do:
1. Check
cable connection
2. Check Baudrate and
data packet setting of
the DIP switch.
Troubleshooting and Maintenance 6-1
module
wiring,
connections
on
wiring
and
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