
INSTALLATION
Series 642
22/73
Edition 2013-08-22
603685EA
4.5.3
Power and sensor connection (+24 VDC sensors)
[642 . . - . .
G
. - . . . . / 642 . . - . .
H
. - . . . . versions recommended]
4.5.3.1
Sensor power wiring via controller
VAT fuse recommendation: (a) 5AF, (b) min. 3A
Use shielded sensor cable(s). Keep cable as short as possible, but locate it away
from noise sources.
Connect Power supply (+24 / GND) at power 5 pol. male connector and Sensors
(+24V / 0V / + / -) at DB
–15 female sensor connector exactly as shown in the
drawing above!
Pins 2 and 3 must be
bridged for operation.
An optional switch
would allow for motor
interlock to prevent
valve from moving.
S C 1083 A