Remote
Stepping mode is active in the operation modes: Remote, Remote II, Fieldbus
Local
Stepping mode is active in the operation modes: Local, Service
Remote and local
Stepping mode is active in the operation modes: Remote, Remote II, Fieldbus, Local,
Service
Information
The timer cannot be by-passed in <Operation mode EMERGENCY>.
8.7.3. Start and end of stepping mode
Start and end of stepping mode can be individually set for both directions.
Customer settings M0041
Timer M0142
End stepping CLOSE M0152
Start stepping CLOSE M0153
Start stepping OPEN M0154
End stepping OPEN M0155
Default values:
End stepping CLOSE = 0.0 %
Start stepping CLOSE = 100.0 %
Start stepping OPEN = 0.0 %
End stepping OPEN = 100.0 %
Setting ranges:
End stepping CLOSE = 0.0 – 99.9 %
Start stepping CLOSE = 0.1 – 100.0 %
Start stepping OPEN = 0.0 – 99.9 %
End stepping OPEN = 0.1 – 100.0 %
8.7.4. On times and off times
On or off times can be set individually for directions OPEN and CLOSE.
Customer settings M0041
Timer M0142
On time CLOSE M0163
Off time CLOSE M0164
On time OPEN M0165
Off time OPEN M0166
Default values: 00:05.0 min : s (= 5 seconds; for all on and off times)
Setting ranges: 00:01.0 ... 00:05.00.0 min : s (= 1 second up to 30 minutes; for all
on and off times)
8.8. By-pass function
Application
The by-pass function is used, e.g. for district heating pipelines. Under high pipeline
pressure, the gate valve of the main valve cannot be used, pressure compensation
via by-pass valve is therefore required.
Function
Two MOVs – one main valve and a by-pass valve – are linked via enable signals
Bypass Sync In and By-pass Sync Out. Operation commands can only be executed
if one of the two actuators sends the enable signal to the other. Release depends
on the end position.This ensures that only the following operation commands may
be executed:
●
The main valve can only be operated in directions OPEN or CLOSE if the by-
pass valve is in end position OPEN.
65
Actuator controls
ACV 01.2/ACVExC 01.2 Application functions