®
MCS Series
Master Power Supply
Installation/
Operation Manual
C653M-D (9/03)
In North America and Canada: Tel (800) 289-9100 or FAX (800) 289-9150
International Customers: Tel +1 (559) 292-1981 or FAX +1 (559) 348-1120
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DESCRIPTION
The MCS Series consists of multi-output 24 VAC indoor power supplies. These power
supplies provide output for 4, 8, or 16 cameras from a single source and come in 2, 5, 10,
and 20 amp capacities. To compensate for voltage losses over long wire runs, 28 VAC
outputs are also available on most models. The power supplies allow for 120 or 240 VAC
line input. Higher capacity models can handle pan and tilt and receiver operation in addition
to the camera when they are used with integrated systems such as the Spectra® dome and
Esprit® Integrated Positioning System.
Each output on the MCS “S” and “SB” (switched) Series models features its own LED
power indicator and three-position switch (up = 24 VAC, center = off, down = 28 VAC). The
switch lets you individually turn each output off or quickly select between 24 and 28 VAC
without reconnecting wires.
All MCS Series models are available with either glass fuses or self-resetting circuit
breakers (poly switches). The following bullets explain the advantages and disadvantages
of each type:
•
Glass fuses provide more protection than circuit breakers because they act faster and
are more precise. However, they are designed for one-time use and must be replaced
when they blow.
•
Circuit breakers reset themselves when the fault is corrected, which eliminates the
need to replace fuses. However, they react more slowly, are affected by temperature,
and are not nearly as accurate—the amount of current required to trip one can vary as
much as 100 percent.
Since circuit breaker models do not require fuses and automatically reset themselves after
the fault is corrected, the breakers are not accessible.
MODELS
Model Number
MCS4-2
4
4
8
8
2
2
5
5
1
1
3
3
3
3
3
3
3
3
3
3
120/240
120/240
24
24
0.44
0.44
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
MCS4-2B
MCS8-5
X
X
X
X
X
X
X
X
X
X
X
X
120/240 24, 28 1.10/0.57
120/240 24, 28 1.10/0.57
120/240 24, 28 2.20/1.15
120/240 24, 28 2.20/1.15
120/240 24, 28 2.20/1.15
120/240 24, 28 2.20/1.15
120/240 24, 28 4.40/2.30
120/240 24, 28 4.40/2.30
120/240 24, 28 4.40/2.30
120/240 24, 28 4.40/2.30
MCS8-5B
MCS16-10
MCS16-10B
MCS16-10S
16 10
16 10
16 10
16 16
16 16
MCS16-10SB 16 10
MCS16-20
MCS16-20B
MCS16-20S
16 20
16 20
16 20
X
X
X
X
16 16
16 16
MCS16-20SB 16 20
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APPLICATION EXAMPLES
Table A contains examples of products and the number of units that can be powered by
each power supply, and is based on the vA rating of each product.
Table A. Product Capacity
Power Supply Model
MCS16-10/
MCS16-10B/
MCS16-10S/
MCS16-20/
MCS16-20B/
MCS16-20S/
MCS4-2/ MCS8-5/
Product
MCS4-2B MCS8-5B MCS16-10SB MCS16-20SB
CCD Camera (12 vA maximum)
DF5/DF5S with camera (3 vA)
DF8A/PDF8 (12 vA maximum)
Indoor Spectra® (30 vA)
4
4
4
1
8
8
8
4
16
16
16
8
16
16
16
16
Esprit® without wiper or
IOC/IOP (50 vA)
—
2
4
8
INSTALLATION
To install an MCS Series Power Supply, perform the following steps:
1. Punch out the necessary knockouts. (Two knockout holes are provided on the bottom
for either 1/2-inch (1.27 cm) or 3/4-inch (1.91 cm) conduit fittings for the incoming
(main) power. Six knockout holes are provided on the top for either 1/2-inch (1.27 cm)
or 3/4-inch (1.91 cm) conduit fittings for the output (24-28V) power.
2. Open the lid on the unit by removing the 8-32 Phillips screw.
3. Install conduit fittings (not provided).
4. Determine the location of the unit.
5. Refer to Figure 1. Drill holes in the mounting surface (two of the mounting holes are
inside the unit). Use the unit as a template.
6. Attach the unit securely with four fasteners (not supplied) of the appropriate length.
You can use fasteners up to 5/16-inch (0.80 cm) in diameter.
CONCRETE
WALL
WALLBOARD
WALL
MOUNTING
HARDWARE
(NOT SUPPLIED)
WOOD SCREW
(NOT SUPPLIED)
MOUNTING HARDWARE
WITH ANCHOR OR TOGGLE
BOLT (NOT SUPPLIED)
Figure 1. Power Supply Mounting
4
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INPUT CONNECTIONS
WARNING: Pelco
shall not be liable
1. Verify that the on/off switch inside the box is OFF. On MCS “S” and “SB” (switched)
models, verify that the switch for each output is at the center (OFF) position.
for any damages re-
sulting from incorrect wiring
or improper loading of an
MCS Series Power Supply.
2. Refer to Figure 2 or 3. Remove the high-voltage compartment panel inside the box.
Set the input voltage selector switch inside the compartment to the appropriate line
voltage. The switch is set at the factory for 120 VAC line voltage.
3. If you are using 120 VAC line voltage, go to step 4. If you have a fuse model and are using
240 VAC line voltage, remove the 120 VAC fuse from the fuse holder directly above the
power switch and install the appropriate fuse (refer to Table B). Find the fuse in the bag
located inside the high-voltage compartment. (Extra fuses are supplied for spares.)
WARNING: Units
are equipped for
120 VAC line volt-
age at the factory. If you are
using 240 VAC, you must
change the main fuse (fuse
models) and change the
voltage selector switch. If
240 VAC power is applied
with the selector switch set
to 120 VAC, the main fuse
will blow (fuse models) or
the thermal breaker will
open (breaker models).
4. Attach the 120/240 input wires to the flying leads in the compartment with the supplied
wire nuts. Connect the black wire to the AC line lead. Connect the white wire to the AC
neutral lead.
5. Attach the input ground wire to the stud inside the compartment with the supplied
washer and nut.
6. Replace the access panel.
Table B. Fuse Determination Table
Line Voltage
120 VAC
240 VAC
1 A
1 A
1.6 A
1 A
N/A
N/A
3 A
N/A
N/A
5 A
3 A
N/A
N/A
0.5 A
0.5 A
1.6 A
N/A - Model is not equipped with a primary input fuse; transformer is protected with thermal
breaker.
* -
MCS4-2B uses a fuse for the high-voltage line input and provides breakers for the
low-voltage output channels.
OUTPUT CONNECTIONS
CAUTION: Under
light load conditions
Perform the following steps to attach 24 VAC devices to the MCS Series Power Supply:
and high power line
1. Refer to Tables C and D in this manual or the wiring table on the unit’s lid to determine
the output wiring needed for your devices.
input voltage from the utility
company, output voltage from
the power supply (28 VAC taps
only) may reach 32 VAC. This
voltage can cause over-voltage
damage on 24 VAC devices.
Keep in mind, certain devices
produce variable loads (due to
heaters, blowers, and pan and
tilt motion) and during mini-
mum requirements may create
a light load condition, causing
excessive voltage. Therefore,
Pelco recommends using a 28
VAC tap only when the sup-
plied wire size for the given
load causes an unacceptable
output voltage on the 24 VAC
tap. Refer to Table D to deter-
mine acceptable situations for
the 28 VAC tap.
2. Refer to Figure 2 (or Figure 3 for “S” and “SB” models) for the proper connector strip
connections, and do one of the following:
•
•
Regular MCS Models: For each device, attach one output wire to the COM
(common) terminal. Attach the second wire to the appropriate 24V or 28V terminal.
“S” and “SB” (Switched) Models: For each device, attach one output wire
to the COM (common) terminal and the second wire to the 24/28V terminal.
3. When you finish the wiring connections, double-check the installation for safety
purposes.
4. Power up the unit with the on/off switch. On MCS “S” and “SB” (switched) models,
move the switch to the appropriate output voltage position (up = 24 VAC, down = 28
VAC) to provide power.
5. Use a voltmeter to verify that used outputs are at appropriate voltage levels.
6. Close the lid and secure it using the 8-32 Phillips screw.
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OUTPUT # 1
(24 VAC)
OUTPUT # 1
(28 VAC)
OUTPUT # 2
(24 VAC)
OUTPUT # 9
(28 VAC)
OUTPUT # 9
(24 VAC)
24V/28V
COM
24V
28V
1
2
3
4
5
6
7
8
9
10 11 12
13 14 15 16
1
2
3
4
5
6
7
8
9
10 11 12
13 14 15 16
Main Fuse
COM
ON
Main Fuse
OFF
Power
24V
OFF
28V
OUTPUT 1 THRU 8
OUTPUT 9 THRU 16
HIGH VOLTAGE
COMPARTMENT
PANEL
HIGH VOLTAGE
COMPARTMENT
PANEL
Figure 2. MCS Unit Wiring Connector Diagram
Figure 3. MCS “S” and “SB” Unit Wiring
Connector Diagram
Table C. Recommended Wiring Distances
The following are the recommended maximum distances (transformer to load) and are
calculated with a 10-percent voltage drop. (Ten percent is generally the maximum allowable
voltage drop for AC-powered devices.) Distances are calculated in feet; values in parenthe-
ses are meters.
Input
Voltage
Total VA
Consumed
Wire Gauge
18
20
16
24 VAC
10
20
30
50
283
141
94
(86)
(42)
(28)
(17)
451
(137)
716
358
238
143
(218)
(109)
(72)
225
150
90
(68)
(45)
(27)
56
(43)
28 VAC
10
20
30
50
386
193
128
77
(117)
(58)
(39)
(23)
614
307
204
122
(187)
(93)
(62)
(37)
975
487
325
195
(297)
(148)
(99)
(59)
You can use Table D as a guide to determine the necessary wire gauge (AWG) for various
cable distances that provide 24 VAC power. Or use it in a reverse fashion to determine the
maximum allowable cable distance for a particular wire gauge. Table D applies when using
2-conductor copper wire, with characteristics similar to West Penn 221-227 unshielded
cable. Calculations are based on a 10-percent voltage drop (generally the maximum
allowable drop for AC-powered devices).
The minimum acceptable voltage is calculated as follows:
24.0 VAC
- 02.4 (10%)
21.6 (Minimum Acceptable Voltage)
The minimum acceptable voltage used to create Table D was 21.6 volts. Therefore, the
24 volt output has an acceptable range from 24 volts down to 21.6 volts; the 28 volt
output’s acceptable range is from 28 volts down to 21.6 volts.
6
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Table D. Required Wire Gauge
Required Wire Gauge Table (AWG)
WIRE
DIST
(feet)
Equipment Loads
(VA)
10VA
12-14
20VA
30VA
N/A
40VA
N/A
50VA
N/A
60VA
N/A
70VA
N/A
80VA
N/A
90VA
N/A
100VA
N/A
200VA
N/A
12
12
12
12
12
1000
900
800
700
600
500
400
300
200
100
16-18
16-18
16-18
18-20
18-20
18-20
20-22
20-22
22
12-14
12-14
12-14
12-14
12-14
14-16
14-16
14-18
12
N/A
N/A
N/A
N/A
N/A
N/A
N/A
12
N/A
N/A
N/A
N/A
N/A
12
N/A
N/A
12-14
12-14
12-16
12-16
12-16
12-18
12-18
12-20
12-22
12
12
12
12
12
12
N/A
N/A
12
N/A
N/A
N/A
N/A
12
N/A
N/A
N/A
N/A
N/A
12
N/A
N/A
N/A
N/A
N/A
12
N/A
N/A
N/A
N/A
N/A
N/A
12
N/A
N/A
N/A
N/A
N/A
N/A
12
N/A
N/A
N/A
N/A
N/A
N/A
N/A
12
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
12
14-16
14-16
14-16
14-18
12
12
N/A
N/A
N/A
N/A
12
12
12
N/A
N/A
N/A
12-14
12-14
12-14
14-16
14-18
12
12
N/A
N/A
N/A
12
12-14
12-14
12-14
14-16
12
12
N/A
N/A
12-14
16-18
12-14
16-18
12-16
18-20
12-18
20-22
12-20
12
12-14
12-14
14-16
14-16
12
12
N/A
N/A
12
12
12-14
12-14
14-16
12
12
12
N/A
12-14
16-18
12-16
18-20
12-18
20-22
12
12
12
12
12-14
14-16
12-14
14-16
12-14
12-14
N/A
12-14
16-18
12-18
20-22
12-14
16-18
12-16
18-20
12
12
12
12
12-14
12-14
12-16
18-20
12-16
18-20
12-14
16-18
12-14
16-18
12-14
16-18
N/A
22
Allowable Wire Gauge (AWG) Using 24 Volt Tap
XX-XX
XX-XX
Allowable Wire Gauge (AWG) Using 28 Volt Tap
N/A - Distance and Load Not Recommended For Any Wire Size Between 12-22 (AWG)
MAINTENANCE
There are no user-serviceable parts except for the fuses. If the transformer in the unit does
not work properly, contact the factory for return information. Refer to the Warranty and
Return Information section of this manual.
Clean the outer surface of the power supply with a nonabrasive cleaning cloth and anti-
static cleaner. Do not use kerosene or similar substances that may damage the surface.
SPECIFICATIONS
MECHANICAL
Cable Entry:
Knockouts for either 1/2-inch (1.27 cm) or 3/4-inch (1.91 cm)
conduit
Fuse Size
All Fuse Models:
All fuses are 5 x 20 mm
ELECTRICAL
Input Voltage
All Models:
120 or 240 VAC, 50/60 Hz
Output Voltage
MCS4-2:
All Other Models:
24 VAC
24/28 VAC
Required Input Current: See Models section
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Output Fuse Ratings
MCS4-2:
MCS8-5:
MCS16-10/16-10S:
MCS16-20/16-20S:
1 A
3 A
3 A
3 A
Output Circuit Breaker Ratings
MCS4-2B:
.9 A
3 A
MCS8-5B:
MCS16-10B/16-10SB:
MCS16-20B/16-20SB:
Input Connectors:
Output Connectors:
Input Wire Size:
Output Wire Size:
Recommended Wiring
Distances:
3 A
3 A
Wire nut
Screw-type barrier strips
12-16 gauge solid wire
12-22 gauge solid or stranded wire
See Table C
GENERAL
Construction:
Finish:
Steel
Black polyester powder coat
Environment:
Dimensions:
Approximate Unit Weight: 21.75 lb (9.87 cm)
Indoor
16.13 (H) x 10.86 (W) x 4.37 (D) inches (40.97 x 27.58 x 11.10 cm)
RATINGS
NEMA 1
(Design and product specifications subject to change without notice.)
PRODUCT WARRANTY AND RETURN INFORMATION
WARRANTY
Pelco will repair or replace, without charge, any merchandise proved defective in material or
workmanship for a period of one year after the date of shipment.
If
a
warranty repair is required, the Dealer must contact Pelco at (800) 289-9100 or
(559) 292-1981 to obtain a Repair Authorization number (RA), and provide the following
information:
1. Model and serial number
Exceptions to this warranty are as noted below:
2. Date of shipment, P.O. number, Sales Order number, or Pelco invoice number
3. Details of the defect or problem
•
•
•
Five years on FT/FR8000 Series fiber optic products.
Three years on Genex® Series products (multiplexers, server, and keyboard).
If there is a dispute regarding the warranty of a product which does not fall under the
warranty conditions stated above, please include a written explanation with the product
when returned.
Three years on Camclosure® and fixed camera models, except the CC3701H-2,
CC3701H-2X, CC3751H-2, CC3651H-2X, MC3651H-2, and MC3651H-2X camera models,
which have a five-year warranty.
Method of return shipment shall be the same or equal to the method by which the item was
received by Pelco.
•
•
Two years on standard motorized or fixed focal length lenses.
Two years on Legacy®, CM6700/CM6800/CM9700 Series matrix, and DF5/DF8 Series
fixed dome products.
RETURNS
In order to expedite parts returned to the factory for repair or credit, please call the factory at
(800) 289-9100 or (559) 292-1981 to obtain an authorization number (CA number if returned
for credit, and RA number if returned for repair).
•
Two years on Spectra®, Esprit®, ExSite™, and PS20 scanners, including when used in
continuous motion applications.
•
•
Two years on Esprit® and WW5700 Series window wiper (excluding wiper blades).
All merchandise returned for credit may be subject to a 20% restocking and refurbishing
charge.
Eighteen months on DX Series digital video recorders, NVR300 Series network video
recorders, and Endura™ Series distributed network-based video products.
Goods returned for repair or credit should be clearly identified with the assigned CA or RA
number and freight should be prepaid. Ship to the appropriate address below.
•
•
One year (except video heads) on video cassette recorders (VCRs). Video heads will be
covered for a period of six months.
If you are located within the continental U.S., Alaska, Hawaii or Puerto Rico, send goods to:
Service Department
Pelco
Six months on all pan and tilts, scanners or preset lenses used in continuous motion
applications (that is, preset scan, tour and auto scan modes).
3500 Pelco Way
Clovis, CA 93612-5699
Pelco will warrant all replacement parts and repairs for 90 days from the date of Pelco
shipment. All goods requiring warranty repair shall be sent freight prepaid to Pelco, Clovis,
California. Repairs made necessary by reason of misuse, alteration, normal wear, or accident
are not covered under this warranty.
If you are located outside the continental U.S., Alaska, Hawaii or Puerto Rico and are
instructed to return goods to the USA, you may do one of the following:
If the goods are to be sent by a COURIER SERVICE, send the goods to:
Pelco
Pelco assumes no risk and shall be subject to no liability for damages or loss resulting from
the specific use or application made of the Products. Pelco’s liability for any claim, whether
based on breach of contract, negligence, infringement of any rights of any party or product
liability, relating to the Products shall not exceed the price paid by the Dealer to Pelco for
such Products. In no event will Pelco be liable for any special, incidental or consequential
damages (including loss of use, loss of profit and claims of third parties) however caused,
whether by the negligence of Pelco or otherwise.
3500 Pelco Way
Clovis, CA 93612-5699 USA
If the goods are to be sent by a FREIGHT FORWARDER, send the goods to:
Pelco c/o Expeditors
473 Eccles Avenue
The above warranty provides the Dealer with specific legal rights. The Dealer may also have
additional rights, which are subject to variation from state to state.
South San Francisco, CA 94080 USA
Phone: 650-737-1700
Fax: 650-737-0933
REVISION HISTORY
Manual #
C653M
Date
3/99
5/99
8/99
6/00
8/02
9/03
Comments
Original version.
Revisions made because fuses are no longer in a bag but in holders. Added weight.
Added material on the four “S” and “SB” (switched) power supply models.
Changed fuse installation information. Updated compliance information.
Added CE certification. Revised Important Safeguards and Warnings.
Revised Important Safeguards and Warnings to advise against interconnecting outputs. Revised table of models to show which
ones have Class 2 outputs.
C653M-A
C653M-B
C653M-C
C653M-D
® Pelco, the Pelco logo, Spectra, Genex, Legacy, Esprit,
and Camclosure are registered trademarks of Pelco.
© Copyright 2003, Pelco.
All rights reserved.
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