Delta Electronics DVP15MC11T, Operation Manual

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Chapter 12 Troubleshooting
12

CAN1 (CANopen) LED

RUN LED
LED state Explanation How to deal with
Green light
single flash
CAN1 (CANopen)
communication port is in
STOP state.
PC is downloading the network configuration data.
Wait till downloading is completed.
Green light
blinking
CAN1 (CANopen)
communication port is in
Preoperational state.
1. Check if CANopen network bus cable connection
is correct.
2. Check if the CANopen bus cable is Delta
standard CANopen cable.
3. Check if the two ends of the CANopen bus have
connected a terminal resistor respectively.
4. Check if the baud rate of the master is the same
as that of other slaves.
5. Check if configured slaves have been actually
connected to the network.
6. Check if some slave can not make the
connection with the master.
7. Check if some slave is offline.
Green light
ON
CAN1 (CANopen)
communication port is in
RUN state.
No correction

RUN LED: Green light is in single flash and blinks as below.

ERR LED
LED state Explanation How to deal with
LED OFF
PLC module is in the state of
normal work.
No correction
Red light double
flashes
Some slave is offline.
1. Check if the CANopen bus cable is Delta
standard cable.
2. Check if the two ends of CANopen bus have
connected a terminal resistor respectively.
3. Check if configured slaves have been
actually connected to the network.
O N
O FF
Gr ee n li gh t
sin gl e flash
200ms
2 00ms
1000 ms
O N
O F F
Gr ee n l ig ht
bl in ks
20 0ms
200 ms
12-3