Delta DPS-400K - Page 24

2-12
Ultron DPS Series
O OFF
ON I
O OFF
ON I
O OFF
ON I
O OFF
ON I
Isolate Uninterruptible Power System (UPS)
Then check for Hazardous Voltage between all
terminals including the protective earth
See installation instructions before connecting to the supply
Apparatet er egnet for tilkopling til et IT forsyningsnett
RISK OF VOLTAGE BACKFEED
BEFORE WORKING ON THIS CIRCUIT
T
SR
N
UPS O UTP UT
TSRN
AC INPUT
R
S
T
BYPASS IN PUT
240VD C240VDC
BATTERY INPUT
N
Connects the
main AC source
Connects the
critical loads
Connects an
external battery
cabinet
Connects the
bypass AC source
For the critical
loads’ grounding ()
5
6
3 4
1
2
For the UPS
grounding ()
(Figure 2-12: Wiring Terminal Block)
No. Item Function Description
1
AC Input
Block
Connects the main
AC source
Includes three phases (R, S, T) and one
neutral (N) terminals.
2
For the critical loads’
grounding
Includes one grounding terminal.
3
Bypass Input
Block
Connects the bypass
AC source
Includes three phases (R, S, T) terminals.
4
For the UPS
grounding (safety)
Includes one grounding terminal.
5
UPS Output
Block
Connects the critical
loads
Includes three phases (R, S, T) and one
neutral (N) terminals.
6
Battery Input
Block
Connects an external
battery cabinet
Includes positive (
+
), negative (
-
) and
neutral (N) terminals.
NOTE:
1. For dual input, please connect the bypass source’s neutral to the neutral (N)
terminal of the AC Input Block.
2. Only authorized Delta engineers or service personnel can remove the panel
of the wiring terminal block and perform wiring. If you want to remove the
panel and perform wiring by yourself, you must do it under the supervision of
authorized Delta engineers or service personnel.