Lifesafety Power Source (MPS-U)
Installation Instructions
I. Model Numbers
Item
Number
System
Voltage
Model Number
System
Current
Maximum
Maximum Maximum
XFMR
AC Input
Battery
Storage
Current Voltage Capacity Capacity
021-04 MPS-U12030-B04-UL
12VDC
3.0A
1.25A
17.5VAC
34Ah
34Ah
021-09 MPS-U24030-B04-UL
24VDC
3.0A
2.50A
28.2VAC
34Ah
17Ah
UL Listed:
UL294 - Access Control System Units - (ALVY)
UL603 - Power Supplies for use with Burglar Alarm Systems - (APHV)
UL1481 - Power Supplies for Fire Protective Signaling Systems - (UTRZ)
FCC Part 15 Class A Compliant
* MPS-UL Listed products comply with NFPA 72 - National Fire Alarm Code, and are CSFM Listed
#7315-1214:103.
II. Installation Instructions
1. Mount cabinet per mechanical dimensions and knockout locations given in Section IV.
2. Connect the black and white leads of the stepdown transformer to 120VAC 60Hz., single phase in
accordance with Article 725 and/or 760 of the National Electrical Code.
3. Battery Connection - Connect battery set to BATT "+" and "-" terminals
CAUTION: Observe Polarity; Incorrect polarity will destroy battery fuse.
{ Battery terminals are Supervised for Open or Short Circuit Conditions.
{ Fused at 10 Amps (Fuse type AGC-10)
WARNING: For continued protection against fire hazard,
replace only with the same type and rating of fuse.
v High / Low / No Output Voltage
v High / Low Battery Voltage
v Battery Presence / Blown Battery Fuse
6. Visual Indicators
Primary Power
Green Lamp
AC Presence (AC)
Green LED
Battery Voltage Fault (VBATT)
Yellow LED
Output Voltage Fault (VOUT)
Yellow LED
Common Fault (COM)
Yellow LED
Remote shutdown (REM)
Yellow LED
7. The power supply output can be remotely shutdown by shorting the F1 and F2 terminals together, rated
15VDC @ 1.5mA; 10Kohm max line resistance.
8. This unit is not intended for powering a mercantile bell in burglar applications.
Warning: Changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmfull interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
III. Mechanical Drawings
B04 Cabinet Dimensions:
{ Recommended Battery type - PowerSonic (PS-Series) or YUASA (NP-Series) sealed lead acid/gel cell 15"H x 18"W x 4"D (38.1cm x 45.8cm x 10.2cm)
{ Maximum Battery Charge Current - 2.25 Amp.
KEYLOCK
{ Refer to Section I for maximum battery size.
18.00
3.00
2PLCS
12.00
2PLCS
1.94TYP
24Hr. Standby*
60Hr. Standby*
4 Hr. Standby
7Ah
125mA
0mA
900mA
17Ah
425mA
125mA
2.00A
34Ah
900mA
325mA
3.00A
15.21
* 24 and 60 hour standby times also include a 5 minute ringoff of 3.00A
at the conclusion of the standby time.
{ Refer to chart below for Battery Standby times and current ratings
4. DC Output - Connect user system to LOAD "+" and "-" terminals
{ CAUTION: Observe Polarity; Incorrect polarity may destroy user system
{ Output terminals are REGULATED, CLASS 2 POWER LIMITED and Supervised for Short Circuit and
Abnormal voltage conditions
{ Line and Load Regulation: 5% typical
{ Output Ripple : 400mVpp Max.
5. Fault Output - Form "C" Relay contact transfer. Relay is fail-safe, active until a fault condition
{ Relay contacts are rated at 1A @ 24VDC; 0.5A @ 120VAC resistive.
{ Relay contacts can only be connected to devices that are placed in the same room as the power supply.
{ Yellow "COM" LED illuminates on the following trouble conditions:
v Low AC / No AC
AlarmSaf
0
0
1.50
18.21
4.34
12.00
2PLCS
13.94
0 1.00
9.0
17.00
52-125B
122195
65A Industrial Way Wilmington, MA 01887-3499 (978) 658-6717 FAX: (978) 658-8638 Web Site: www.alarmsaf.com
Lifesafety Power Source (MPS-U)
Installation Instructions
V. Wiring Diagram
VIII.
MPS Board
AGC-10
BATT FUSE
Low Volt
AC Input
BATT LOAD
F1 F2 NC C NO
+ -
+ -
Troubleshooting Guide
Fault Output
{ Form "C" Relay Contacts rated 1 Amp @
24VDC; 0.5A @ 120VAC resistive
{ Relay Contacts labeled in the operational
(Non-fault) condition
{ Fail-safe; active until an actual fault condition.
Fault Contacts
Fault Conditions
{ "COM" Yellow LED illuminates on:
1. Low AC / No AC
2. High / Low / No Output Voltage
3. High / Low Battery Voltage
4. Battery Persence / Blown Battery Fuse
X Troubleshooting Chart
Symptoms
IV. Power Limited Wiring Requirements
Visual Indicators
{ Primary Power
Green Lamp
{ AC Presence (AC)
Green LED
{ Battery Fault (VBATT)
Yellow LED
{ Output Fault (VOUT)
Yellow LED
{ Common Fault (COM)
Yellow LED
{ Remote Shutdown (REM) Yellow LED
Possible Cause
Correction Procedure
1) Yellow "COM" LED is lit.
AC Fault.
Fault Relay transfers.
Output Voltage Fault See Symptom #3.
C
See Symptom #2.
Battery VoltageFault See Symptom #4.
A
Battery Missing
Check wiring connector, wiring configuration,
and polarity.
Blown Battery Fuse Remove primary power and batteries, then
replace fuse. CAUTION.
2) Green "AC" LED extinguishes Loss of AC power.
Blown AC fuse.
B
Check transformer AC primary supply.
Remove primary power and batteries, then
replace fuse. CAUTION.
Loss of transformer Check xfmr secondary voltage at PC board
(xfmr) power.
"AC Input". If voltage not present,replace xfmr
BATTERY SPACE
3) Yellow "VOUT" LED is lit.
Power supply is
Output voltage is out of tolerance remotely shutdown
4) Yellow "VBATT" LED is lit.
Wiring Instructions:
DC Output Terminals (LOAD + and -), F1, F2, and Fault Relay Contact Terminals are Power Limited
Terminals. The Battery Terminals (BATT + and -) and the Low Volt AC Input Terminals are Non-Power
Limited Terminals. All wire routing shall be in accordance with Article 725 and/or 760 of the National
Electrical Code. A separation of 1/4" must be maintained between power limited and non-power limited wiring.5) No battery backup
AC Line Voltage of 120VAC MUST be wired through knockouts marked "A". The barrier is provided to
guarantee the minimum separation between power wiring and power limited wiring.
Batteries capacities that do not fit in the enclosure must be housed in a separate enclosure Listed for the
intended purpose. Battery Cabinets must be located no further that 20 feet from the power supply enclosure.
All Power Limited wiring must be wired through knockouts marked "C".
AlarmSaf
Remove short from F1, F2 terminals
Power supply is in
power limiting.
Remove system load and batteries; check
system output voltage. If OK recheck system
requirements, and/or measure output current
draw with an ammeter. Reduce system load.
Battery is not
connected.
Connect battery and/or check wiring..
Incorrect battery
Check wiring configuration and battery ratings
Defective battery
Check battery condition and replace if needed
Blown Battery Fuse. Remove primary power and batteries, then
replace fuse. CAUTION.
Defective Battery
Check battery condition and replace if needed
For further assistance, please contact the AlarmSaf Technical Service Department.
65A Industrial Way Wilmington, MA 01887-3499 (978) 658-6717 FAX: (978) 658-8638 Web Site: www.alarmsaf.com