User Instructions
MAN-02-04-60-0352-EN Rev. 3
February 2019
59
Section 8: Parameter Menu
Parameter Menu
8.12
Parameter Group: Positioner (option)
The positioner SR option is used to control the electric actuator by means of a set point
input 0/4-20 mA signal. The SR helps control the position of the actuator, i.e., the
positioner ensures that the actual value and thus the position of the actuator matches the
desired set point.
Table 22.
Positioner Table (1)
Menu Item
Sub Menu
Item
Position
Setting
Notes/Comments
P13.1
Positioner
Function
Off
Positioner disabled.
1: Position
mA input for the position setpoint.
2: Pos.
valvechar.
mAinput for the position setpoint, taking into
account the valve characteristic.
P13.2
Positioner
Begin (at 0%)
0 – 20.5 mA
{4, 0 mA}
mA value of the setpoint for the CLOSED
(0%) position.
P13.3
Positioner
End (at 100%)
0 – 20.5 mA
{20, 0 mA}
mA value of the setpoint for the OPEN
(100%) position.
P13.4
Positioner
Dead band
0,1 – 10,0%
{1,0%}
Tolerance range for the control deviation (set point
position - actual position) where no adjustment occurs.
The deadband should not be set too low to prevent
actuator oscillation.
P13.5
Positioner
Gain
1 – 100%
{100%}
The gain (gradient) affects the positioning close to
the target position. The smaller the gain selected (for
example, 20%), the earlier the actuator starts reducing
its speed in case of speed variable actuators on
approaching the target position. In case of actuators
with fixed speed (reversing starters) the speed
reduction is done by pulsing (also see parameters
P13.9 and P13.10). This provides a better positioning
(smaller reachable deadband). A 100% setting disables
this gradient.
Table 23.
Positioner Table (2)
Menu
Item
Sub Menu
Item
Position
Setting
Notes/Comments
P13.6
Positioner
Live zero
detect
Ignore
The setpoint monitoring (monitoring the setpoint to
below approximately 2mA = loss of signal) is disabled.
Stop
Actuator stops on signal failure.
Open
Actuator moves to OPEN position.
Close
Actuator moves to CLOSED position on signal failure.
Emergency
Position
On signal failure, the actuator moves to defined
emergency position (see parameter P13.7).
Emergency PID
Reserved for future use.
P13.7
Positioner
Emergency
position
0 – 100%
{50.%}
Determination of the emergency position.
(It can also be set in the menu P8.5)
