9.2.
Motor operation
9.2.1.
Actuator control from Remote
For operation commands from Remote, up to four digital inputs within the MEC 03.1
actuator controls are available. Wiring diagram designations:
REMOTE OPEN
, STOP,
REMOTE CLOSE
(Default)
Actuator without local controls (standard version) can only be controlled from Remote.
For actuators with local controls, operation mode Remote must be activated at local
controls.
Figure 32: Local controls (option)
[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, it is possible to operate the actuator via remote control, via operation
commands (OPEN, STOP, CLOSE) or analogue setpoints (e.g. 0/4 – 20 mA).
Change-over between OPEN - CLOSE control and setpoint control:
For actuators equipped with positioner, it is possible to select between OPEN -
CLOSE control (REMOTE OPEN-CLOSE) and setpoint control (REMOTE
SETPOINT).
Selection is made via MODE input, e.g. based on a 24 V DC signal (refer to wiring
diagram).
●
MODE input: + 24 V DC = REMOTE OPEN-CLOSE
Control is made via digital operation commands OPEN, STOP, CLOSE.
●
MODE input: 0 V (or input open-circuit) = REMOTE SETPOINT
Control takes place via an analogue signal (e.g. 0/4 – 20 mA).
EMERGENCY operation:
●
An EMERGENCY operation is initiated by a signal at the EMERGENCY input.
●
The actuator moves to a predefined EMERGENCY position (i.e. end position
OPEN or end position CLOSED).
●
During EMERGENCY operation, the actuator does not perform any operation
commands.
9.2.2.
Operation commands from Local
If local controls are provided, the actuator can be operated via the push buttons at
local controls.
35
SG 04.2 – SG 10.2
with actuator controls MEC 03.1
Operation and control of actuator
