UPS 30-300kVA User Manual
Installation
31
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Tighten the connections terminals to enough torque moment, refer to Table 2-3, and please
ensure correct phase rotation.
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The grounding cable and neutral cable must be connected in accordance with local and national
codes.
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Load must be connected to the same ground as that of UPS system
2.7 Control and Communication Cables
The front panel of the bypass module provides dry contact interface (J2-J11) and communication
interface (RS232,RS485,SNMP,Intelligent card interface and USB port), as it is shown in
Figure2-10.
USB
485
232
Parallel Interface
Dry Contact
Battery Cold Start
SNMP
Intelligent Slot
(a)
Dry contact &communication interface
of 60kVA-300kVA
Dry contact
Intelligent Slot
SNMP
USB
RS232
RS485
Parallel interface
(a)
Dry contact &communication interface
of 400kVA and 500kVA
Figure2-10
Dry contact &communication interface