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6
Trouble shooting
Failure
No dots lighted on display
Remote operation does not work
Display shows «E 20»and position is
009999
(fatal error - limit stop of valve unit not
detected)
Display shows «E 21»and position is
009999
(fatal error - rotation angle of valve
plate limited during power up)
Display shows «E 22»and position is
009999
(fatal error - rotation angle of valve
plate limited during operation)
Display shows «E 40»and position is
009999
(fatal error - motor driver failure
detected)
Display shows «D 0»
Motor Interlock is open
Display shows «SR»
(Service Request)
58/83
TROUBLE SHOOTING
Check
24 V power supply ok?
- Local operation via service port active
- Safety mode active, check for D on
display?
Clamp coupling screw not fastened?
- Valve plate centric adjusted?
- Valve unit heavy contaminated?
- Valve plate mechanically obstructed?
- Valve unit heavy contaminated?
- Valve plate mechanically obstructed?
Motor power supplied?
Valve unit heavy contaminated? Or gate
seal is sticking.
Edition 2013-04-12
Action
Connect valve to power supply according
to «Electrical connection» and make sure
that power supply is working.
- Switch to remote operation.
- Provide power to motor to allow for
operation.
- Refer to «Electrical connection» for
details.
Tighten clamp coupling screw. Refer to
chapter «Maintenance» for details.
RESET or restart of valve is necessary.
- Adjust valve plate according to
«Maintenance procedure».
- Clean valve unit according to
«Maintenance procedure».
- Resolve obstruction.
- Reset control unit. Cycle power
(OFFàON)
or
- Send reset command: local via service
port with CV/CPA/Service Box2
- Clean valve unit according to
«Maintenance procedure».
- Resolve obstruction.
- Reset control unit. Cycle power
(OFFàON)
or
- Send reset command: local via service
port with CV/CPA/Service Box2
Replace control and actuating unit
according to «Maintenance procedure».
- Provide power to motor to allow for
operation.
- Refer to «Electrical connection» for
details.
- Clean valve unit according to
«Maintenance procedures».
- Reset control unit. Cycle power
(OFFàON)
or
- Send reset command: local via service
port with CV/CPA/Service Box2
Series 612
601894EA
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