Agromatic ESR-NK Series, Инструкция по установке и эксплуатации, Страница: 56 / 98

5.6 2-wire current output 4 D 20mA (option) 5 Assembly
50 Actuators NK and VK, Position Controller ESR-NK
5.6 2-wire current output 4 G 20mA (option)
Electrical connection
Fig. 5.20: Schematic diagram transmitter
Always connect the current output
with a shielded wire (minimum
cross-section 0.5mm², maximum
length 1000m) separated from the
mains voltage lines.
Adjusting procedure
–
The current output is pro-
grammed with the two buttons
4mA and 20mA .
–
The output currents 4mA and
20mA can be assigned to op-
tional positions.
–
The minimum and the maxi-
mum output current (4mA and
20mA) cannot be changed.
Fig. 5.21: Transmitter (top view)
End position 4mA
1. Move the actuator to the first end position.
2. Press button 4mA for more than 2s, then release it.
The first end position is now assigned to the 4mA output current.
End position 20mA
1. Move the actuator to the opposite end position.
2. Press button 20mA for more than 2s, then release it.
The second end position is now assigned to the 20mA output current.
NOTE
Observe the positioning range of the actuator and the potentiometer
transmission ratio!
The order-specific positioning range must not be exceeded , other-
wise the potentiometer adjustment would be cancelled when moving to
the end position. In this case, feedback of the correct position would no
longer be possible.
4mA 20mA