Connection Diagrams; Potentiometer Option; Potentiometer Option With 1K Ohm Potentiometer - Danfoss MCH19AM1649 Technical Information

Control handle
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Technical Information
MCHXXX

Connection diagrams

Potentiometer option

Potentiometer option with 1K Ohm potentiometer

14 |
©
Danfoss | February 2017
Direct EDC Control
Center-off switch assembly and wiring connections for the control handle.
+
A
B
-
NC
COM
NO
Ground
MCHXXX potentiometer models having either two or single 200 Ohm pots are configured to directly
control Danfoss variable pumps with electrical displacement controls (EDCs). Whether two or single pots,
both require the same electrical connection to the EDC and only one of the dual coils needs to be
connected to achieve forward and reverse pump flow.
Analog setpoint controller input
1 2 3
( + )
A
(
)
4
5
1.
5.
Red
5 Vdc supply
2.
6.
Green
PLUS+1
3.
Black
7.
Torque motor
4.
Ground
From Potentiometer +
From +
Torque Motor
12 or 24 Vdc
6
7
A
D
B
C
kwa1381515070607
®
controller
1224B
11022667 | BC00000033en-US0601

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