One of the auxiliary commands has to be set to AUTO / ON-OFF to operate remotely (see §18.2).
The actuator is on positioner control when this setting has been completed. The auxiliary command
must be switched for On-Off commands. This auxiliary command is used for selecting positioner or
on-off control remotely.
See §28 for further details, particularly regarding deadband settings.
18 COMMANDS
Standard remote command modes are described in §9 above. This section covers additional control
methods.
18.1 REMOTE CONTROL VIA SINGLE CONTACT
The actuator can be controlled via a single external contact.
- Contact closed: valve opens
- Contact open: valve closes
The actuator has to be configured for priority to open (see §18.6)
The command can be made the other way round:
- Contact closed: valve closes
- Contact open: valve opens
In this case, the actuator has to be configured for priority to close (see §18.6)
Opening by single
4
contact closing
5
6
7
8
9
OPEN
10
Configuration: priority to open
15.2 AUxILIARY REMOTE CONTROLS
Two further remote commands are available and can be configured for the installation.
4
5
6
7
STOP
8
CLOSE
9
OPEN
10
Aux. command 1
11
Aux. command 2
12
These commands can be assigned to specific functions.
16
Closing by single
4
contact closing
5
6
7
8
CLOSE
9
10
Configuration: priority to close
4
55 - 250V
5
10 - 55V
6
7
STOP
8
CLOSE
9
OPEN
10
Aux. command 1
11
Aux. command 2
12
Select change in the MENU and turn to OK to confirm.
Select commands in the CHANGE menu and turn to OK to confirm.
Select aux. command 1 or aux. command 2
in the COMMANDS menu and turn to OK to confirm. Select a
command with the blue selector.
By default, aux. command 1 is assigned to local command inhibit
and aux. command 2 to ESD close.
If aux. command 1 and aux. command 2 are set to emergency
functions, aux. command 2 has priority.
Description of the commands:
- local/remote replaces local/remote switch on the actuator for
enabling remote control or local control from a remote location.
Turn to OK to confirm and then select contact status for performing
this command:
Turn to OK to confirm.
If you just want to check settings without
making changes, select check instead
of change in the main menu.
- local + remote/remote: same as above, but this command allows local and remote modes
to be enabled at the same time.
- local command inhibit: local command inhibit is a remote command. This command overrides
any open or close commands made locally and enables remote commands, even if the local/re-
mote selector on the actuator is on local.
Turn to OK to confirm and then choose whether or not to maintain local stop capability.
The standard setting is for local stop and general shutdown to remain possible on the actuator.
Select local off (no) to inhibit local stop as well.
Turn to OK to confirm and then select contact status for performing
this command (as described above).
Turn to OK to confirm.
- open / close inhibit: this command is used to prevent
the actuator from opening or closing.
For example, a main valve has a by-pass valve and should not
open unless the by-pass valve is already open. In this case,
a limit switch on the by-pass valve could be used to prevent
the main valve from opening unless the limit switch has been
activated.
Turn to OK to confirm and then select contact status for perfor-
ming this command (as described above). Turn to OK to confirm.
AUX. COMMAND 1
(no assigned)
(local/remote)
(local+remote/remote)
(local command inhibit)
(open inhibit)
(close inhibit)
(auto / on-off)
ESD close
ESD open
ESD stop
partial stroke
LOCAL / REMOTE
contact (c) = remote
contact (o) = remote
Actuator
terminal
Aux. command 1
Selector local/remote
11
1rst choice: closed contact = remote commands.
2nd choice: open contact = remote commands
LOC CMD INHIBIT
local off (yes)
local off (no)
LOC CMD INHIBIT
contact (c) = inhibit
contact (o) = inhibit
OPEN INHIBIT
contact (c) = inhibit
contact (o) = inhibit
17