SMC Networks EX600-ED Series, Руководство по эксплуатации

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No.EX##-OMN0030-A
No. Problem Presumed cause Troubleshooting
MS: Green LED is ON
NS: OFF
(1)Node address
duplicated.
(2)Communication error.
(1)Restart after setting so that the node address is not
duplicated.
(2)The communication speed of PLC and SI unit are
different. Match the communication speed of PLC
and SI unit, and restart.
MS: Green LED is ON
NS: Green LED is flashing
Waiting for connection.
Check PLC is operating properly. Refer to the PLC
operation manual for details.
If the network is using a scan list, check that the slave is
registered correctly into the scan list.
MS: Red LED is ON SI unit failure. Stop the operation and contact SMC.
11
MS: Green LED is ON
NS: Red LED is ON or
Flashing
DeviceNet™
communication error.
Check the following, or reset then restart.
•Ensure that the node address is not duplicated.
•Match the communication speed of PLC and SI unit.
•Use a cable of appropriate length.
•Check the communication cable is not disconnected or
loose.
•Connect terminal resistors to both ends of the network.
•Keep noise sources away from the communication line.
The number of connected
valves is larger than the
number of occupied valve
outputs. When the number of occupied valves of the V_SEL
switch is smaller than the number of connected valves,
set the switch so that the number of occupied valves is
not smaller than the number of valves to be used.
Abnormality with program,
etc.
Check if the ladder program of PLC, etc. is correct.
Abnormal power supply
for output.
Check if the green PWR(V) LED of the SI unit is ON. If
the LED is OFF, or the red LED is ON, supply 24V DC
+10/-5% to the power supply for output.
Connection between SI
unit and manifold valve is
defective. Check the connectors between the SI unit and manifold
valve are not damaged, such as bent pins, and connect
them correctly.
Polarity of output does not
match.
IF the polarity of the SI unit and the valve are different,
replace one of them to make the combination match.
•EX600-SDN1A (PNP output)
⇒
-common type valve
•EX600-SDN2A (NPN output)
⇒
+common type valve
SI unit has failed.
Replace the SI unit with a normal one, and check the
operation.
12 Abnormal valve operation
Valve failure.
Replace the valve with a normal one, and check the
operation. Or refer to the troubleshooting of the valve
used.