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Message
Message shown on the display
No.
PSU:DI21.5 Alarm fault power supply 24V
78
Alarm communication fault to Remote-IO
97
SYS
Alarm communication fault to Remote-IO
98
PSU
Alarm communication fault to MOCP
103
Alarm shutdown by MOCP
104
Manual_SMOevoPLUS_eng_01.2019.doc
Manual Ozone Generating System SMOevo
Description /
Possible Cause
PSU 24V internal fault message.
Automatic circuit breaker upstream
mains unit triggered.
PLC internal fault message.
Cable break,
Incorrect wiring.
24 V power supply to Remote-IO is
missing.
PLC internal fault message.
Cable break,
Incorrect wiring.
24 V power supply to Remote-IO is
missing.
Communication problems.
Communication processors
defective.
Cables defective.
Fault message from main control.
PLUS
Troubleshooting
Countermeasures
Refer to manufacturer's manual.
Check cables and connections.
Check automatic circuit breaker.
Check mains voltage.
Check cables and connections.
Check input voltage.
Contact Wedeco Service / Fault
rectification only by qualified staff.
Refer to Chapter Contact
Addresses.
Check cables and connections.
Check input voltage.
Contact Wedeco Service / Fault
rectification only by qualified staff.
Refer to Chapter Contact
Addresses.
Contact regional Wedeco Service.
Refer to Chapter Contact Addresses.
Investigate customer problem and
rectify.
Acknowledge fault.
page 148 of 179
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