Securitron BPSM_Series User Manual

Page 4

PN# 500-19400

Page 4

Rev. E, 02/11

FIG. 1: POWER SUPPLY WIRING WITH CCS8M BOARD

DC
FUSE

AC
FUSE

GREEN
LED

FIRE ALARM
N.C. CONTACTS
OPEN WHEN
ALARM ACTIVE

“H” TERMINAL IS SINGLE, HIGH
CURRENT OUTPUT (UPSTREAM
OF POLYSWITCHES)

SLIDE SWITCHES POWER AND DE-POWER EACH
“P” OUTPUT. LED’S SHOW OUTPUT STATUS

OPERATION OF AC AND DC
FUSES IS DESCRIBED IN
SECTION 3.6

TERMINALS R1-R8
COMMON NEGATIVE
DC RETURN (0 VOLT)

CLASS 2 TERMINALS P1-P8
SUPPLY +V OUT.
EACH TERMINAL IS ON
A SEPARATE POLYSWITCH
WHICH IS APPROPRIATE
FOR INSTALLATIONS
WITH MULTIPLE LOADS

NC C NO

BATTERY
PACK
(OPTIONAL)

B-

B+

BLACK

RED

LOW
BATT

AC
FAIL

11
5 V
A

INPUT

HO
T

NEU

OF
F

3.7 BATTERY CHARGING CAPABILITY
A resistor and diode are present on the CCS8M board which, together with the power supply,

constitute a battery charging circuit appropriate for standby rated sealed lead acid or gel cell
batteries. Dry cell or NICAD batteries must not be used. Batteries are an option. The
power supply can be used with or without them. The battery pack of the appropriate voltage is
connected to the red and black flying leads following correct polarity. In the event of a line
voltage power failure, the batteries will automatically drive the load at the same DC voltage. If

the emergency release terminals are opened, battery power will, however, be blocked just as
normal power from the power supply would be.

The components utilized on the CCS8M board for battery charging function for battery packs up
to 20 amp hours in capacity whether 12 or 24 volts. Larger battery packs can be handled but

Securitron must be informed so that the board may be modified. Consult (Figure 2) to calculate
the correct battery pack based on desired backup time and the current drawn by the load. For
proper battery charging, the power supply must be set at 27 volts for a 24 volt system,
and 13.5 volts for a 12 volt system. Securitron power supplies are factory set to this level
and if it is not maintained, the batteries will not hold their full capacity, and may even be
damaged.

VOLTAGE SUPERVISION DIAGNOSTIC TABLE

AC FAIL TERMINALS

LOW BATT TERMINALS

DESCRIPTION

Continuity between C and NO Continuity between C and NO

Normal Operation

Continuity between C and NO Continuity between C and NC

AC present, no DC output

Continuity between C and NC Continuity between C and NO

No AC, battery is powering unit

Continuity between C and NC Continuity between C and NC

No AC, no battery or discharged

battery