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Electrical Power Connection and Interfacing
MAN0984_Iss 4_01/19
Touchpoint Plus
Pt. No. 3011M5001
31
Technical Handbook
5.1.1
AC Power Supply
To confirm or alter the pre
-
set operating voltage, open the system front cover, locate the SMPS on the left side and, if
required, change the voltage selector using a screwdriver at the point shown at the top of the yellow and black label.
Switched Mode Power Supply (SMPS) Connections
Note:
Mains Earth (Ground) must only be connected to the protective earth (ground) rail, and not to the SMPS.
Regional power cable wires are coloured in accordance with the following code:
Wire
Europe
USA
CAN
India/Pakistan
Protective Earth
(Ground)
Green + Yellow
Green
Green
Green
Isolated Earth (Ground)
Green + Yellow
Green
Neutral
Blue
White
White
Black
Line
Brown
Blue, Red, or Black
Red or Black
Red, Yellow, or
Blue
Table 5.
Regional Power Cable Colours
Before making any electrical connections or changes ensure that:
•
the mains supply isolator switch is in the
Off
position
•
the system is set up to operate at the correct voltage
Refer to Ch.3.2.1 Power Requirements
for further information on system electrical specifications.
Note 1:
Input voltage of less than DC 23.5 V will fail to charge the backup battery, and it will generate a
Battery
unchargeable
warning message.
Note 2:
If
Field detectors exceed 20 W per channel or a combined total of 40 W they may need their own power
supplies. Refer to Table 6: mA Input Module Connections for further information.
AC Line
AC Common
F Ground (Not Used)
AC Input
DC Output
-Ve DC
-Ve DC
+24 VDC
+24 VDC
+2
4
V
DC
In
-Ve
DC
R
etu
rn
E
ar
th
(G
rou
n
d
)
Protective
Earth
(Ground)
System Ground Bus Bar