5.3 Group Control
This section to be considered only if there is more than one CoolChip CDU 600 unit installed pers system.
Groups of up to 16 CoolChip CDU 600s can be connected using a high speed, robust twisted pair CANbus network in order to
provide coordinated control in larger installations and N + X redundancy.
Figure 6.1 Group Control
5.3.1 Group Control—Network Cabling
CANbus is used for communication between CDU 600 units for group control. CANbus always requires at least 3 conductors:
2 signal wires (CAN Hand CAN L) and a 1 signal return path.
The CDU 600 provides 2 CAN H, 2 CAN L and 2 GND terminals on sockets SK9, 1, 2 and 3 for In and terminals 4, 5 and 6 for
Out.
Beldon 3106A, or equivalent (1 pair + 1 shielded 22AWG) is the recommended cable type to be used and pre-configured cable
assemblies are provided with each unit if required.
Figure 6.2 Group Control Wiring Configuration
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Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide
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