Figure 17: Local controls
[2]
Operation mode LOCAL/REMOTE
[4]
Indication light for operation mode LOCAL (blue)
Activate operation mode Remote by means of local controls:
→
If indication light [4] is blinking in blue: Hold down push button [2] for approx. 3
seconds until the blue indication light goes out.
➥
Now, the actuator can be remote-controlled via fieldbus.
Change-over between OPEN - CLOSE control and setpoint control:
For actuators equipped with a positioner, it is possible to select between OPEN
CLOSE control (Fieldbus REMOTE/Fieldbus CLOSE ) and setpoint control
(Fieldbus SETPOINT).
●
Command bit
Fieldbus SETPOINT
= 1 = Remote SETPOINT
The actuator reacts to the setpoint E1 transmitted via the fieldbus.
●
Command bit
Fieldbus SETPOINT
= 0 = Remote OPEN-CLOSE
Actuator can be operated via command bits in
Fieldbus OPEN
/
Fieldbus CLOSE
in direction OPEN or CLOSE.
EMERGENCY operation:
●
An EMERGENCY operation is initiated by the Fieldbus EMERGENCY command
bit.
●
The actuator moves to a predefined EMERGENCY position (i.e. end position
OPEN or end position CLOSED).
●
During EMERGENCY operation, the actuator does not react to other operation
commands such as Fieldbus/OPEN/Fieldbus/CLOSE or Fieldbus SETPOINT.
24
SGM 04.1 – SGM 14.1 / SGMR 04.1 – SGMR 14.1
Operation
Profibus DP
