SIPOS SEVEN 2SA7 - Binary Control Mode; Analog Control Mode

Operation instructions
SIPOS SEVEN: PROFITRON, HiMod
Page 68 Y070.302/EN
8 Parameters and possible parameter values
8.3 Parameters for the DCS
8
Parameters and possible parameter values
Binary control mode
Permanent contact
Permanent contact via binary inputs OPEN and CLOSE.
The actuator moves as long as an OPEN or CLOSE signal is present. The actuator stops, if the
signal is deactivated, the end position has been reached or the OPEN and CLOSE commands
are present simultaneously. Default setting unless ordered with positioner.
Pulse contact
Pulse contact signal via binary inputs OPEN, CLOSE, and STOP.
After an OPEN/CLOSE pulse, the actuator operates until a STOP command is present or the
end position has been reached. A signal for the opposite direction leads to a direct change of
the direction of operation.
Only possible if the "Alternative control mode" parameter is set to "non-active".
Proportional move
Even for very short control times, the actua-
tor is operated proportionally to the length of
the control time on the OPEN/CLOSE binary
inputs. The ratio of the actuator travel to the
total travel is identical to the ratio of the con-
trol time to the total positioning time, refer to
formula on the right.
The entire positioning time (run time) has to be parameterized to this end. It will be automati-
cally determined by the actuator once end position setting is complete. Refer also to „8.5.3
Proportional move“ on page 81.
Only adjustable for enabled positioner function.
Analog control mode
Positioner AI1
Positioner with setpoint via analog setpoint input AI1.
The positioner within the actuator is activated and the actuator moves proportionally to the
analog signal 0/4 – 20 mA.
Only adjustable for enabled positioner function.
Default setting if ordered with positioner.
Process controller AI1
The process controller within this actuator is activated. Setpoint is recorded via analog input AI1
(0/4 –20 mA). The actual process value is recorded via AI2 (0/4 – 20 mA).
Only adjustable with enabled process controller.
Process controller AI2
Only if analog setpoint input AI2 is available.
As for positioner AI1, however, only setpoint input AI2 is used.
(If an analog setpoint input AI2 is available, you may decide at your own discretion whether the
setpointofthepositioneristobedenedviaAI1orAI2.)
Process controller AI2
AsforprocesscontrollerAI1,howeversetpointdenitionviaanaloginputAI2andactualpro-
cess value via analog input AI1. Only possible, it AI2 is available (generally valid for process
controller).
(If an analog setpoint input AI2 is available, you may decide at your own discretion whether the
setpointistobedenedviaAI1orAI2.)
Permanent contact
Binary
Pulse contact
Proportional move
∆Travel   Controltime
Total travel Total positioning time
=
Process controller AI1
Process controller AI2
Process controller AI2
Analog
Positioner AI1
Formula: Travel positioning time ratio