Delta Ultron DPM Series, User Manual

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5 - 3 5
5 Installation and Wiring
No. Item*
1
Description Function
3
AC Input
Terminals Include L1/ L2/ L3
terminals.
The terminals connect to the external
maintenance bypass cabinet’s input
breaker.
4
UPS Output
Terminals Include L1/ L2/ L3
terminals.
The terminals connect to the external
maintenance bypass cabinet’s output
breaker.
5 /
6
Battery Input
Terminals I/ -
terminals. The terminals connect to the external
battery cabinet.
NOTE:
*
1
The terminals listed in the above ' Item ' column are all located at the
front of the UPS system cabinet. Please refer to Figure 5-30 .
5
For the user-supplied external maintenance bypass cabinet’s wiring information,
please refer to Table 5-7 .
Table 5-7: External Maintenance Bypass Cabinet Wiring Information
No. Item*
2
Description Function
1
Input Breaker
(Q1) Includes L1/ L2/ L3
terminals. The breaker connects to the
main AC power.
2
Bypass Breaker
(Q2) (only for dual
input application)
Includes L1/ L2/ L3
terminals. The breaker connects to the
bypass power.
3
Manual Bypass
Breaker (Q3) Includes L1/ L2/ L3
terminals.
The breaker connects to the
bypass power and the critical
loads.
4
Output Breaker
(Q4) Includes L1/ L2/ L3
terminals. The breaker connects to the
critical loads.
5
Includes one
grounding
terminal. For the external maintenance
bypass cabinet’s protective
earthing.
6
Includes at least
two grounding
terminals.
The two grounding terminals
shall connect to
1. the UPS system cabinet’s
grounding terminal ( ),
2. the connected critical loads’
grounding terminal ( ).
Please refer to Figure 5-32 &
Figure 5-40 .