Execute last CMD
The actuator executes the last operation command before it is stopped.
If the last operation command was a setpoint definition via analogue input (AIN 1/AIN
2), the lower limit of the setpoint position is used (parameter
Low limit AIN 1
/
Low
limit AIN 2
). The actuator is operated to the defined end position, usually end position
CLOSED.
Behaviour depending on the selector switch position
Once the failure operation is triggered, the defined position is approached. If the
actuator is then moved to another position (e.g. by manual operation), it will try to
perform the set failure operation while the selector switch is in position Remote
control (REMOTE).
Information
To prevent a new approach to the failure position during manual operation, the se-
lector switch must be set to position Local control (LOCAL) or 0 (OFF) prior to
operating the handwheel.
9.2.4.
Preset position: define
If the
Approach position
failure operation is set, the actuator runs to the preset failure
position indicated here.
Required access level:
Specialist (4)
or higher.
Customer settings M0041
Failure behaviour M0378
Fail.pos.OPEN CLOSE M0387
Default value:
50.0 %
Setting range:
0.0 ... 100.0 %
(from end position OPEN to CLOSED)
9.2.5.
Failure position MPV: define
This parameter is only available in multiport valve version.
If the
Approach position
failure operation is set, the actuator runs to the preset failure
position indicated here.
Required user level:
Specialist (4)
or higher.
Customer settings M0041
Failure behaviour M0378
Failure position MPV M1172
Default value:
0.0 °
Setting range:
0.0 ... 360 °
9.2.6.
Speed for safety operation: set
The speed during safety operation may be set individually for both direction
(OPEN/CLOSE).
Required user level:
Specialist (4)
or higher.
Customer settings M0041
Failure behaviour M0378
Failure speed OPEN M1935
Failure speed CLOSE M2042
Default value:
45 rpm
Setting ranges:
6 ... 240 rpm
The adjustable speed range is indicated on the actuator name plate.
86
Actuator controls
Failure functions
ACV 01.2/ACVExC 01.2 Profibus DP