Delta DPS-400K - Function Keys; Internal Mechanisms; Input & Output Switches

2-9
2
Introduction
2.5.4 Function Keys
There are no symbols on the function keys. The functions of keys depend on symbols ap-
pearing on the LCD. Please see the table below.
No. Symbol Function
1
Goes back to previous screen or cancels current selection.
2
Moves up.
3
Moves down.
4
Moves left.
5
Moves right.
6
Increases number.
7
Decreases number.
8
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2.6 Internal Mechanisms
2.6.1 Input & Output Switches
The input and output switches include Input Switch (Q1), Bypass Switch (Q2), Manual
Bypass Switch (Q3) and Output Switch (Q4). Each switch has a switch and fuses.
(Figure 2-7: Input & Output Switches)
P.S.
FUSE
AC OUTLET
FUSE
AC OUTLET
220/230/240Vac,8A
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
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RISK OF VOLTAGE BACKFEED
BEFORE WORKING ON THIS CIRCUIT
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SR
N
UPS O UTP UT
TSRN
AC INPUT
R
S
T
BYPASS IN PUT
240VD C240VD C
BATTERY INPU T
N
BYPASS SWITCH
INPUT SWITCH
MANUAL BYPASS SWITCH
OUTPUT SWITCH
Bypass
Switch (Q2)
Input
Switch (Q1)
Output
Switch (Q4)
Manual Bypass
Switch (Q3)