Johnson Controls MPS-24A User manual

jci-60152:a1 • 09/3/09 — Page 1 of 2
MPS-24A
Main Power Supply
jci-60152:a1
General
The MPS-24A is the main power supply for the IFC-2020/-1010,
XP Transponder or FC-2000 fire alarm control system. The
MPS-24A can also be used to power additional system equip-
ment such as the JNCA, JNCA-2, AMG and ACS series devices.
It provides all the necessary internal operating power plus addi-
tional power for operation of external alarm Notification Appli-
ance Circuits. A battery charging circuit is included.
Features
• Provides all internal operating power for the system.
• Up to 3.0 A of regulated, filtered alarm notification device
power available, compatible with any listed 24 VDC notifica-
tion appliance or any 24 VDC listed release solenoid.
• Recharges standby batteries up to 55 AH in size.
• Dual-rate charge capability.
• Regulated and filtered four-wire detector power available
(depending on the system configuration).
• Trouble LEDs for AC Power Fail, Battery, and Ground Fault
conditions.
• Circuit breaker and automatically-resetting PTC resistors pro-
tect against current overload.
• Power-limited on all external output power.
• High-efficiency DC/DC converter for FACP internal +5 V
power.
• High-efficiency switched regulator for notification appliance
power.
• True battery supervision.
• Optional battery backbox holds 55 AH batteries.
Applications
The MPS-24A Main Power Supply provides all of the required
internal system operating power, plus 3.0 A of regulated power
is available for external use.
Electrical Specifications
Primary Input Power: 120 volts, 50/60 Hz, 1.8 A maximum
(220 VAC option, model MPS-24AE).
Maximum Loading: of the 24 volt filtered regulated supply is
6.0 A (used for internal and external power where filtered regu-
lated power is required). Up to 3.0 A may be used to power Noti-
fication Appliance Circuits (NAC) or ACS Series annunciators.
Battery Charger: 24-volt float type, capable of charging 9 AH
to 55 AH batteries.
Brown-out and battery monitors
Trouble Indicators
• AC POWER FAIL (LED #2) Indicates the loss of AC power,
low AC line or open circuit breaker
• BATTERY (LED #3) Indicates battery failure
• GROUND FAULT (LEDs 4 & 5) indicates a ground fault condi-
tion.
Installation
The MPS-24A power supply is installed in the lower bottom-left
corner of the CAB-A3/-A4, CAB-B3/-B4, CAB-C3/-C4, or CAB-
D3/-D4 enclosures. Screw terminals are provided for Earth
Ground; 120 or 220 VAC; Battery positive and negative; +24
VDC filtered, regulated, resettable power. Plug-in connectors
are provided for the Power Ribbon, Power Harness, and AVPS-
24 Supervision connection.
Agency Listings and Approvals
These listings and approvals apply to the modules specified in
this document. In some cases, certain modules or applications
may not be listed by certain approval agencies, or listing may be
in process. Consult factory for latest listing status.
•UL Listed: S1570 (IFC-2020/-1010, FC-2000)
•ULC Listed: CS118/CS733/CBP696 Vol. VII (IFC-2020, FC-
2000)
•BSA: 578-81-SA
•FM Approved (IFC-2020/-1010, FC-2000)
•MEA: 289-91-E Vol VI (IFC-2020/-1010)
•City of Denver (IFC-2020/-1010)
Product Line Information
MPS-24A: Main Power Supply. Includes 3.0 A of filtered, reg-
ulated audible/visual power.
MPS-24AE: Same as MPS-24A, but requires 220 VAC.
MPS-TR: Optional Main Power Supply Trouble Relay for
remote mounting of a stand-alone power supply. UL Listed.
Check with factory for additional listings and approvals.
JCI-LBB: Battery backbox, holds up to two BAT-12550 (55
AH) batteries.
JCI-LBBR: Same as JCI-LBB but painted red.
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©2009. All rights reserved. Unauthorized use of this document is strictly pro-
hibited.
This document is not intended to be used for installation purposes.
We try to keep our product information up-to-date and accurate.
We cannot cover all specific applications or anticipate all requirements.
All specifications are subject to change without notice.
For more information, contact Johnson Controls Field Support Center.
507 East Michigan Street, Milwaukee, WI 53202 www.johnsoncontrols.com
Made in the U.S. A.
OPTIONAL EQUIPMENT
MPM-2: Main Power Meter for MPS-24A. Includes battery
voltage and charging current meters, mounting hardware,
and cable.
JCI-LBB(R) BATTERY BACKBOX
Dimensions: Box: 24.0" (61.0 cm) wide x 14.0" (35.6 cm)
high x 7.75" (19.7 cm) deep. Door: 24.125" (61.3 cm) wide
x 14.25" (36.2 cm) high x (door adds 0.063" [approx. 0.16
cm] to depth).
Four-Wire Smoke Detector/Annunciator Power
24 VDC (20.4-26.4, 200 mV ripple), 1 amp max. Filtered, regulated
and resettable. Power-limited but must be supervised via a UL
approved Power Supervision Relay.
Notification Appliance/Annunciator Power
Power-limited, filtered, regulated, non-resettable,
3 amps (in alarm) max. JP5 may be cut to
convert this notification appliance power (TB3
terminals 3 and 4) to a resettable, 2 A maximum
circuit. This output can also be used to power
ACS series annunciators (do not cut JP5).
Secondary Power
27.6 VDC, supervised and power-limited.
Fast charge = 2 amps, trickle charge = 20 mA.
Earth Ground
Connect to chassis via a
Grounding Cable Assembly.
Ground Fault
Battery Fail
AC Power Fail
High Charge LED
JP5: Cut to make
notification appliance power
on TB3 terminals 3 and 4 a
resettable,
2-amp maximum circuit.
JP2: must be cut otherwise
a short on the notification
appliance power circuit
(terminals 3 and 4) would
register incorrectly as loss of
primary (AC) power. (IFC-
2020/-1010 only)
MPM-2 Voltmeter/Ammeter Connector
Neutral In
Neutral Out Hot In
Hot Out
Battery +
Battery -
-
+
-
+
Cut R27 to disable
Earth Fault Detection.
Primary Power
120 VAC, 50/60 Hz, 1.8 A max.
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Earth Ground
Connect to chassis via a
Grounding Cable Assembly.
+
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