Chapter 8 Option CardsC2000 Plus
8-43
NS LED
LED status Indication Corrective Action
OFF
No power supply or CMC-DN01 does
not pass the MAC ID test.
1. Check the power of CMC-DN01 and see if the
connection is normal.
2. Make sure at least one or more nodes are on the
bus.
3. Check if the serial transmission speed of CMC-
DN01 is the same as that of other nodes.
Green light
flashes
CMC-DN01 is on-line but does not
connect to the master.
1. Configure CMC-DN01 to the scan list of the master.
2. Re-download the configured data to the master.
Green light
ON
CMC-DN01 is on-line and normally
connects to the master
--
Red light
flashes
CMC-DN01 is on-line, but I/O
connection is timed-out.
1. Check if the network connection is normal.
2. Check if the master operates normally.
Red light ON
1. The communication is down.
2. MAC ID test failure.
3. No network power supply.
4. CMC-DN01 is off-line.
1. Make sure all the MAC IDs on the network are not
repeated.
2. Check if the network installation is normal.
3. Check if the baud rate of CMC-DN01 the same as
that of other nodes.
4. Check if the node address of CMC-DN01 is illegal.
5. Check if the network power supply is normal.
MS LED
LED status Indication Corrective Action
OFF No power supply or being off-line
Check the power supply of CMC-DN01 and see if the
connection is normal.
Green light
flashes
Waiting for I/O data
Switch the master PLC to RUN status
Green light
ON
I/O data is normal
--
Red light
flashes
Mapping error
1. Reset CMC-DN01
2. Re-power the AC motor drive
Red light ON Hardware error
1. See the fault codes displayed on the AC motor
drive.
2. Send back to the factory for repair if necessary.
Orange light
flashes
CMC-DN01 is establishing connection
with the AC motor drive.
If the flashing lasts for a long time, turn off the power
and check if CMC-DN01 and the AC motor drive are
correctly installed and normally connected to each
other.
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