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INTRODUCTION
Touchpoint Pro
Pt. No. 2400M2566_1_EN
22
Operating Manual
3.4.3
DC Uninterruptible Power Supply (DC-UPS) Module
The DC-UPS Module can be used with the separate and optional TPPR Battery Enclosure to provide continuous and
uninterrupted power to the TPPR in the event of an external power failure.
The DC-UPS is adjustable for buffer time and buffer voltage, and carries red, yellow and green status LEDs and descriptions
that show your backup battery status (see tables below).
Note
: The DC-UPS Module Buffer Voltage should be set at 26 VDC to ensure optimum battery charging, and the Buffer-time
Limiter should usually be set to
∞
(see circled area on the figure below).
Figure 29.
DC-UPS and Battery Configuration
The DC-UPS terminals are as follows:
DC-UPS Terminal
Purpose
Input +
+24 VDC input from UPS
Input –
–24 VDC input from UPS
Input –
–24 VDC input from UPS (spare)
+24 VDC output to 20 A (max) Load
Output –
–24 VDC output to 20 A (max) Load
B
+24 VDC Battery in/out
Battery –
+24 VDC Battery in/out
Table 4.
DC-UPS Primary Terminal Allocation
The DC-UPS also has Normally Open (NO) relay terminals that can be used for external repeaters such as a lamp stack or
alarm buzzer, as shown in the table below:
DC-UPS Terminal
Purpose
1 & 2
Ready relay: Closed when all is Ok (green)
3 & 4
Buffering relay: Closed when batteries are supplying power (yellow or buzzer)
5 & 6
Replace Battery relay: Closed when batteries fail load test (red or buzzer)
7 & 8
Do not use
as Inhibit belongs to the Controller only
11 – 13
Not normally used
Table 5.
DC-UPS Secondary Terminal Allocation
20 A
20 A max
Load
12 VDC
Battery
12 VDC
Battery
24 VDC
24 VDC
Isolator
Switch