2-12
AFP-400 Installation
PN
50253
:
A2 03/12/96
Connecting the MPS-400
WARNING:
1) Remove all power sources to equipment while connecting
electrical components. Leave the main power breaker off
until installation of the entire system is complete.
2) Make sure to set the voltage selector to correct voltage.
Connecting the Primary Power
Source
Connect primary power to the MPS-400 as follows:
Connecting Primary Power
MPS-400 electrical connections include the following:
Primary power source
120 VAC, 50/60 Hz, 3.0 amps or 240 VAC,
50/60 Hz, 1.5 amps from line voltage source.
Secondary power source
24 VDC from batteries, installed in the
control panel, provides backup power the system loses primary
power. Secondary power (batteries) is required to support the
system during loss of primary power.
Connecting the Secondary
Power Source
Install batteries in the control panel cabinet or in a separate battery
cabinet which can be mounted up to 20 feet away from the control
panel. Connect the battery as follows:
MPS-400 Electrical Connections
Connecting Batteries
MPS-400 TB2 terminals 5 (+) and 6 () provide up to 1.25 A of
current for four-wire smoke detectors. A system reset removes the
24 VDC power from MPS-400 TB2. 24 VDC regulated four-wire
smoke detector power is power-limited but must be supervised. To
provide supervision, install an end-of-line listed power supervision
relay. Connect the power supervision relay in series with an Initiat-
ing Device Circuit. The four-wire power circuit energizes the power
supervision relay.
Four-Wire Smoke
Detector Power (24 VDC)
WARNING: Do not connect the Battery Interconnect Cable (part
number 71070) at this time. Make this connection after initial
system primary power-up.
Step
Action
1
Connect the battery positive terminal to TB1 terminal 6 (+).
2
Connect the battery negative terminal to TB1 terminal 7 ().
Continued on the next page...
Step Action
1
Turn off the breaker at the main power distribution panel
and remove the plastic insulating cover from TB1.
2
Connect the system primary power source.
3
Connect the service ground to TB1-3 (marked EARTH).
4
Connect the primary Neutral line to TB1 Terminal 2 and
the primary Hot line to TB1-4 (marked HOT).
5
When finished making connections, reinstall the plastic
insulating cover over TB1.
Make sure to set the voltage
selector to correct voltage.
