After an operation command in direction CLOSE, the actuator continues to run, even
if the operation command is cancelled (self-retaining). The actuator is either stopped
by the CLOSE command or if end position CLOSED or an intermediate position
CLOSED has been reached.
OPEN and CLOSE
In directions OPEN and CLOSE = self-retaining:
After an operation command, the actuator continues to run in directions OPEN or
CLOSE, even if the operation command is cancelled (self-retaining). The actuator
is either stopped by the STOP command or if an end position or intermediate position
has been reached.
Direct reversal of operation is not possible. Operation commands in directions OPEN
or CLOSE must be stopped first by STOP command. Only then is an operation
command into the opposite direction allowed.
OPEN & CL w/o STOP
In directions OPEN and CLOSE = self-retaining without stop:
Direct reversal of operation is also possible without the STOP command. However,
operation can be stopped at any time by the STOP command.
6.3.
Operation mode remote
Selector switch is in position Remote control (REMOTE).
Properties
The indication in the top row of the display shows the set source of the operation
commands:
●
Remote
(parallel interface)
●
Remote II
(parallel interface, service box)
●
Fieldbus
(channel 1 or channel 2)
Depending on the control, a distinction is made between:
●
OPEN-CLOSE control (operation mode Remote OPEN-CLOSE):
Control is made via binary operation commands OPEN, STOP, CLOSE.
●
Setpoint control (operation mode Remote SETPOINT):
Control via analogue operation commands, e.g. 4 – 20 mA.
Information
●
Binary signals (e.g. +24 V DC) via digital inputs are only recognised as valid
operation commands if the signal is present for at least 10 ms.
●
If a positioner or process controller is available, change-over between OPEN-
CLOSE control (operation mode Remote OPEN-CLOSE) and setpoint control
(operation mode Remote SETPOINT) is possible. Refer to chapter <Change-
over between OPEN-CLOSE control and setpoint control>.
6.3.1.
Push-to-run operation or self-retaining Remote
Parameters
Self-retaining Remote M0100
,
Self-retaining M01193
and
Self-retaining
Remote II M0101
determine the operation behaviour of the actuator to binary
operation commands (OPEN, STOP, CLOSE ), controlling the actuator “from Remote”
via the I/O interface.
“Self-retaining” parameters have no impact on operation commands transmitted via
fieldbus. When equipped with fieldbus interface, setting of these parameters is only
required if digital inputs (OPEN, STOP, CLOSE ) are available in addition to the
fieldbus interface.
Customer settings M0041
I/O interface M0015
Self-retaining Remote M0100
Self-retaining Remote II M0101
Default values:
33
Actuator controls
ACV 01.2/ACVExC 01.2 Profibus DP
Operation