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2.2.1
KHS CoolFlow valve (Fig. 615 0G)
2.3
Bus system overview
Bus cables for the wiring of CAN bus systems (controller area network) in accordance with ISO 11898
must be used for bus systems with 120 Ω nominal impedance. Only when such cables are used can a high
level of data transfer security be guaranteed.
Recommended properties for the CAN bus cable
Cable type
Conductor material
Conductor cross-section and
number of wire
Shielding
Impedance at f ≥ 1Hz
100 /265 – K410068602008-00 / 10.2023 – © www.kemper-group.com
Connection of the components
[1] br (BN)
[2] gr (GY)
[3] bl (BU)
The servo drive of the KHS CoolFlow cold water regulating valve au-
tomatically carries out an initialisation run when the „KHS CoolFlow
230V" valve is selected in the device settings. This run covers the
complete path of the servo drive. For correct initialisation, the servo
drive must be mounted on the valve. The valve and the servo drive
must be installed.
CAN bus cable
copper
Cross-section
1 x 2 x 0,34 mm²
1 x 2 x 0,50 mm²
1 x 2 x 0,75 mm²
Braiding of tinned copper wires
120 Ω ± 15 %
2.3.1
CAN bus cable
Length
300 m
500 m
1000 m
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