Agromatic ESR-NK Series, Installation And Operating Manual, Page: 68 / 98

6.2 Electrical connection 6 Electronic position controller ESR-NK (option)
62 Actuators NK and VK, Position Controller ESR-NK
6.2.6 Actual value output
The position controller ESR-NK has an actual value output for DC current
signals 0(4) D 20mA (standard) and/or DC voltage signals 0(2) D 10V (op-
tion) at terminals 54-55.
The actual value output is not electrically isolated from the setpoint input.
The output values are generated analogous to the setpoints:
−
If the actuator is in the specified position “4mA”, then the actual value is
also 4mA.
−
If the actuator is in the specified position “20mA”, then the actual value is
also 20mA.
6.2.7 Programming
The programming procedure is used to assign the setpoints 0(4)mA and
20mA (or 0(2)V and 10V) to the two end positions of the positioning range.
Important information!
If no setpoint is applied in automatic mode, the actuator moves to the end
position assigned to setpoint 0(4)mA.
For series NK, the positionig range can be between 90° and 308°, depending
on the potentiometer transmission ratio.
Important information!
The permissible positioning range for series VK is max. 180°!
(See section 5.3.2)
The positioning range limited by the programmed end positions of the posi-
tion controller should cover at least 50% of the nominal positioning range of
the actuator specified on the nameplate.
The cams of switches SL and SR must be set and the potentiometer must
be adjusted before the end positions of the positioning range of the posi-
tion controller can be programmed!
Before
–
the end positions are programmed,
–
the setpoint range is set,
–
the direction of action is set,
sliding switch Auto/Manu must be set to the
position OFF = manual mode !