Installation manual

Connecting the control-wire cables > Connecting the UPS units in parallel
34020846EN/AE - Page 49
1. Installation
Connecting parallel UPSs with SSC (static-switch cabinet)
This operation must be carried out by qualified personnel.
The door must be open.
The supplied cables are 10 m or 20 m long; the maximum total length must not exceed 180 m.
Auxiliary wires (exchange, CAN) and power cables must be separated to ensure sufficient insulation for the auxiliary
wires.
Once outside the cabinet, the cables must run along the earthing and connection cables between cabinets.
UPS cabinet
Key:
(1) Connectors
(2) Cable ties
(3) Exchange-current and CAN cables
SSC
Key:
(1) Connectors
(2) Cable ties
(3) Exchange-current and CAN cables
Exchange current:
1 - Create a loop between XM2 and
XM3 connectors in the four UPS units
and the SSC.
All the connectors must be used.
CAN:
2 - Fit a blue plug on connector XM6 in
UPS 1.
3 - Interconnect the XM6 and XM7
connectors in the four UPS units and
the SSC.
4 - Fit a red plug on connector XM7 in
the SSC.
3
2
2
2
1
XM2
XM3
XM4
XM5
XM6
XM7
3
2
2
2
2
1
XM2
XM3
XM4
XM5
XM6
XM7
XM7
XM6
XM3
XM2
XM5
XM6
XM3
XM2
XM7
XM7
XM5
1 1 1 1
1
2
3 3 3 3
XM4 XM4
4
UPS 1 UPS 2 UPS 3 UPS 4
Cabinet
SSC