Connecting Mains To The Power Supply Pcb - C-TEC CAST XFP Engineering Manual

CAST XFP 32 ZONE ANALOGUE ADDRESSABLE FIRE ALARM PANEL

Connecting Mains to the Power Supply PCB

The panel's PSU combines the functions of a power supply unit, battery charging unit, battery
monitoring unit and earth fault monitoring unit. It is positioned in the panel's enclosure as shown in
Fig.3 below.
CAUTION: DO NOT CONNECT MAINS TO THE POWER SUPPLY PCB UNTIL THE INSTALLATION
IS COMPLETE AND ALL RELEVANT PCBs ARE CORRECTLY FITTED IN THE PANEL.
Fig.3 : Power Supply PCB layout and mains connection details (Full Protective Cover & Cable Cover
shown fitted)
PSU Earth Distribution Strap
The strap MUST be connected
to the spade on the base earth
distribution post before operation.
Base Earth Distribution Post
spring
nut
washer
3 x plain
washer
Do not untighten lower nut
10-way PSU loom
(connects to the
Main Control PCB).
DO NOT REMOVE
WHEN PANEL IS
POWERED!
Battery Fuse (F3)
Battery Connector (BAT1)
(Leads supplied in the panel's
accessory pack.) See page 12
for connection details.
ENGINEERING MANUAL • Approved Document No. DFU5010020 Rev 4 • Page 8 of 48
PSU Earth
Distribution
Strap
PL1
F3
BAT
FUSE F
3.15 A H
_
+
BAT1
Incoming Mains Cable
This cable MUST be segregated
from other cables. Good quality
cable glands MUST always be fitted.
L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L N N
C C C C C C C C C CONN C C ONN1 ON ON ON O N ON O ON ON ON ON O N1 N 1 N1 N1 N1 N1 N N N N1 N1 N1 N1 N1 N1 N1 N1 N1 N1 N1 N1 N1 N1 N 1 N1 1 1 1 1 1 1
WHEN THE RED 'HAZARDOUS VOLTAGES
PRESENT' LED IS LIT HAZARDOUS
VOLTAGES ARE PRESENT UNDER THE
COVER. ALLOW TO DISCHARGE FOR AT LEAST 5
MINUTES BEFORE REMOVAL & HANDLING.
THIS
WAY UP
Cable cover removed
Primary Fuse (F1)
Exposed Live parts
under fuse cover.
Isolate before
removal.
The incoming mains
earth wire MUST be
connected to the
terminal marked
and NOT to the base
earth
post.
L N
CONN1
distribution