Output Units - Omron SYSMAC C200HS Installation Manual

Output Units

6-7

Output Units

Error
No outputs turn ON. p
Outputs all fail to turn OFF.
Indicators do not light, and the outputs
for particular Relay numbers do not
turn ON.
Indicators light, but the outputs for g ,
particular Relay numbers do not turn i l R l b d
ON ON.
Indicator lights are off, but the outputs g ,
for particular Relay numbers do not f i l R l b
turn OFF.
Indicators light, and the outputs for g ,
particular Relay numbers do not turn i l R l b d
OFF.
Outputs are turning ON and OFF
irregularly.
Malfunctioning Relays are in groups of g y
eight. i h
Operation is normal, but the output
indicator does not light.
Probable cause
A load power supply is not provided.
The load power supply voltage is low.
Terminal screws are loose.
Terminal block connectors are making
poor contact.
A fuse is blown.
I/O bus connectors are making poor
contact.
The output circuit is defective.
The output circuit is defective.
The output ON time is too short.
The output circuit is defective.
The program's OUT instruction bit
addresses overlap.
p An output device is defective.
Output wiring is disconnected.
Terminal screws are loose.
Terminal block connectors are making
poor contact.
Output Relays are defective.
The output circuit is defective.
p Output Relays are defective.
d
There is faulty restoration due to
leakage current or residual current.
p The output circuit is defective.
The program's OUT instruction bit
addresses overlap.
The load power supply voltage is low.
The program's OUT instruction bit
addresses overlap.
There is malfunctioning due to noise.
Terminal screws are loose.
Terminal block connectors are making
poor contact.
g p
Common terminal screws are loose.
Terminal block connectors are making
poor contact.
A fuse is blown.
The CPU is defective.
The LED is defective.
Section 6-7
Possible correction
Provide the power supply.
Provide the rated voltage.
Tighten the terminal screws.
Securely lock the connectors, or
replace them if necessary.
Replace the fuse.
Replace the Unit.
Replace the Unit.
Replace the Unit.
Correct the program.
Replace the Unit.
Correct the program.
Replace the output device.
Check the output wiring.
Tighten the terminal screws.
Securely lock the connectors, or
replace them if necessary.
Replace the Relays.
Replace the Unit.
Replace the Relays.
Replace the external load or add a
dummy resistor.
Replace the Unit.
Correct the program.
Supply the rated voltage.
Correct the program.
Apply noise countermeasures such as
installing a surge suppressor,
installing an isolation transformer, and
using shielded cables.
Tighten the terminal screws.
Securely lock the connectors, or
replace them if necessary.
Tighten the terminal screws.
Securely lock the connectors, or
replace them if necessary.
Replace the fuse.
Replace the CPU.
Replace the Unit.
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