VAT 642 GP Series Installation, Operating, & Maintenance Instructions page 86

Failure
Remote operation (DeviceNet
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 - movement of valve
plate limited during power up)
Display shows «E 22» or «E 23»
and position is 009999
(fatal error - movement of valve
plate limited during operation)
Display shows «E 40»
(fatal error - motor driver failure
detected)
Display shows «D999»
CLOSE VALVE does not work
OPEN VALVE does not work
POSITION CONTROL does not
work
86/113
TROUBLE SHOOTING
Check
®
) - Local operation via
service port active
- Safety mode active, check
for D on display?
Internal mechanical valve
problem?
- Valve unit heavy
contaminated?
- Valve plate mechanically
obstructed?
- Check differential
pressure on gate
- Valve unit heavy
contaminated?
- Valve plate mechanically
obstructed?
- Check differential
pressure on gate
- Motor power supplied?
- Safety mode active, check
for D on display?
- Safety mode active, check
for D on display?
- Safety mode active, check
for D on display?
- POSITION CONTROL
selected, check for V on
display?
Edition 2017-11-24
Action
- Switch to remote operation.
- Provide power to motor to allow for operation.
- Refer to «Electrical connection» for details.
- Open valve bonnet. Check all mechanical parts
are correct installed?
- Solve mechanical problem.
- 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
- 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 procedures».
- Provide power to motor to allow for operation.
- Refer to «Electrical connection» for details.
- Provide power to motor to allow for operation.
- Refer to «Electrical connection» for details.
- Provide power to motor to allow for operation.
- Refer to «Electrical connection» for details.
- Provide power to motor to allow for operation.
- Refer to «Electrical connection» for details.
- Select POSITION CONTROL mode.
Refer to «Position control» for details.
Series 642
605593EC