11.
Corrective action
11.1.
Faults during commissioning
Table 23:
Faults during operation/commissioning
Remedy
Description/cause
Fault
Set gear stage of the reduction gearing.
The control unit might have to be exchanged.
Reduction gearing is not suitable for actuator swing
angle.
Mechanical position indicator cannot
be set.
●
Determine overrun: Overrun = travel covered
from switching off until complete standstill.
●
Set limit switching again considering the over-
run. (Turn handwheel back by the amount of
the overrun)
The overrun was not considered when setting the
limit switching.
The overrun is generated by the inertia of both the
actuator and the valve and the delay time of the
actuator controls.
In spite of correct setting of mechan-
ical limit switching, actuator operates
into the valve or actuator end position.
11.2.
Fault indications and warning indications
Faults interrupt or prevent the electrical actuator operation. In the event of a fault,
the display backlight is red.
Warnings have no influence on the electrical actuator operation. They only serve
for information purposes. The display remains white.
Collective signals include further indications. They can be displayed via the
Details
push button. The display remains white.
Table 24:
Faults and warnings via status indications in the display
Remedy
Description/cause
Indication on display
For a description of the status texts, refer to Manual
(Operation and setting).
Instead of the valve position, a status text is dis-
played.
S0001
For indicated value > 0: Press push button
De-
tails
.
For details, refer to <Warnings and Out of specific-
ation> table.
Collective signal 02:
Indicates the number of active warnings.
S0005
Warnings
For indicated value > 0: Press push button
De-
tails
.
For details, refer to <Not ready REMOTE and
Function check> table.
Collective signal 04:
Indicates the number of active signals.
S0006
Not ready REMOTE
For indicated value > 0: Press push button
Details
to display a list of detailed indications.
For details, refer to <Faults and Failure> table.
Collective signal 03:
Indicates the number of active faults.
The actuator cannot be operated.
S0007
Fault
For indicated value > 0: Press push button
De-
tails
.
For details, refer to <Warnings and Out of specific-
ation> table.
Collective signal 07:
Indication according to NAMUR recommendation
NE 107
Actuator is operated outside the normal operation
conditions.
S0008
Out of specification
For indicated value > 0: Press push button
De-
tails
.
For details, refer to <Not ready REMOTE and
Function check> table.
Collective signal 08:
Indication according to NAMUR recommendation
NE 107
The actuator is being worked on; output signals are
temporarily invalid.
S0009
Function check
For indicated value > 0: Press push button
Details
to display a list of detailed indications.
Collective signal 09:
Indication according to NAMUR recommendation
NE 107
Recommendation to perform maintenance.
S0010
Maintenance required
For indicated value > 0: Press push button
Details
to display a list of detailed indications.
For details, refer to <Faults and Failure> table.
Collective signal 10:
Indication according to NAMUR recommendation
NE 107
Actuator function failure, output signals are invalid
S0011
Failure
61
SQEx 05.2 – SQEx 14.2 / SQREx 05.2 – SQREx 14.2 Control unit: electronic (MWG)
ACExC 01.2 Non-Intrusive Modbus TCP/IP
Corrective action