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Installation Instructions
Model MPS-6
Power Supply Module
OPERATION
The Model MPS-6 from Siemens Industry, Inc. is a
fully supervised power supply that provides the MXL
System with primary 24 VDC power. It is rated at 6.5
amps and is unfiltered and unregulated. The MPS-6
supplies the MXL Control Panel or PSR-1 and its
expansion modules with the power required for
normal operation. The module incorporates a 2 amp
resettable circuitbreaker on the primary input and
includes a built-in AC line filter for surge and noise
suppression. The MPS-6 mounts in an MXL enclosure backbox.
INSTALLATION
Always remove power before installation.
The installation kit for the MPS-6 includes the
following:
Four #10 nuts
Two #10 lockwashers
Two #10 flat washers
Two ¼" nuts
One 14 gauge green ground strap
The MPS-6 is designed to operate from a 120 VAC,
60 Hz power source. Use a separate or dedicated
circuitbreaker. Wire in accordance with local codes
and Article 760 of the NEC, NFPA 70, latest edition.
Run the earth ground from a suitable source to the
MPS-6. Check local requirements. Conduit is not
an acceptable conductor.
1. Make sure that the dedicated circuitbreaker
for the MPS-6 is turned off at the mains.
2. Place the mounting bracket for the MPS-6 over
the two studs provided in the enclosure. (Refer to
Figure 1.)
3. Secure the MPS-6 to the enclosure by slipping the
flat washers, then the lockwashers, and finally the
nuts over the two studs. Tighten them securely.
4. Connect the AC mains to the MPS-6:
Terminal
Black (hot) 1
White (neutral) 2
Green (earth ground) 3
5. Install the 14 gauge green ground strap spade lug
side to Terminal 3 (green, earth ground) of the
MPS-6. Secure the ring lug side of the ground
strap to the nearest available stud in the enclosure. The stud size may vary depending on the
actual system modules and enclosure used.
Because the stud may be either a #10 thread or
¼" thread, nuts for both have been provided. The
ground strap provided is long enough for all
applications and the ring lug is good for both #10
and ¼" studs. If possible, install the ring lug under
one of the lock-washers and nuts which secure
the MPS-6 itself.
6. When used with a PSR-1:
Connect the 3-wire cable coming from the MPS-6
to the PSR at P12.
When used with an MMB-1/-2/-3 or SMB-1/2:
Connect the 3-wire cable coming from the MPS-6
to the MMB-1/-2/-3 or the SMB-1/2 at P1.
Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
P/N 315-090334-8
Siemens Building Technologies, Ltd.
Fire Safety & Security Products
2 Kenview Boulevard
Brampton, Ontario
L6T 5E4 Canada
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Figure 1
MPS-6 in MXL Enclosure
POWER CABLE TO:
MMB-1/-2/-3, P1
SMB-1/-2, P1
PSR-1, P12
P/N 315-090334-8
Figure 2
Front of MPS-6
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