KEYENCE DL-CL1 - Manual (Page 70)

5-1 Troubleshooting
5-4 - CC-Link Compatible Network Unit DL-CL1 User’s Manual (FD-S) -
5
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Sensor communication indicator
This lamp indicates whether the DL-CL1 is connected correctly and communicating
with sensor amplifiers.
The cause of each error can be identified by reading the error information.
LED status Condition Corrective action
Not lit Power is not supplied to
the DL-CL1. Check that the DL-CL1 is cor-
rectly connected with the sensor
amplifiers.
Green Solid Communicating cor-
rectly. -
Flashing In process of power-on
reset. After elapse the power-on reset
time, the DL-CL1 goes back to
normal condition.
Red Flashing at
fixed inter-
vals Temporarily unable to
communicate with sen-
sor amplifiers. Check for any noise source
around the DL-CL1. (Normal
condition is automatically cor-
rected after the cause is
removed.)
Repeating
of 4 con-
secutive
flashes Model error (0003h) Connect a sensor amplifier of a
compatible model.
Mixed connection error
(0004h) Remove the foreign sensor
amplifier.
Number-of-units error
(0006h) Observe the number of connect-
able sensor amplifiers.
Solid Initialization error
(0001h/0002h/0005h) Check the number of connected
sensor amplifiers and the con-
nection to the sensor amplifiers,
and then cycle power. If the
error cannot restored, contact
your nearest sales office.
Sensor-to-sensor com-
munication error
(0007h) Check the connections of the
sensor amplifiers, and then
cycle power.