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1. INTRODUCTION
The Alpha2 Series Controllers provides supervisory control for use in
the home, office, factory, or wherever you need it. The Alpha2 Series
Controllers offers flexible I/O control for varied applications including:
• Automation of lights, air-conditioning, or watering systems
• The opening and shutting of gates
• Easy security systems
• Domestic animal and pet food distribution systems
• Control of stockyards and greenhouses
However, the Alpha2 Series Controllers is not designed to be used in
the following applications:
• Applications where high reliabilities such as nuclear power control,
railway facilities, airline facilities, vehicles, combustion equipment
and medical equipment are required.
• Applications in life critical situations
1.1 AVAILABLE MODELS
AL2-
AL2-
Model No
10MR-A
10MR-D
Power
100-240V
24VDC
Supply
AC~
100 -
24VDC
Input Type
240V
Sink/
AC~
Source
No. Inputs
6
6
Output Type Relay
No. Outputs 4
4
Dimensions
71.2 x 90 x 52
mm (in)
(2.8 x 3.54 x 2.05)
Weight
0.21
0.20
kg (lbs)
(0.47)
(0.44)
1.2 CAUTION
CAUTION:
Persons trained in the local and national electrical
standards must perform all tasks associated with wiring the Alpha2
Series Controller.
• Disconnect all terminals from power supply before removing the
cover.
• Turn off the power before performing any wiring operations.
• Input and output cables should not be run through the same
multicore cable or share the same wire.
• Input and output cable length must be less than 30m (98' 5").
• The wire should be used a single cable, used a crimp terminal, or
carefully twist stranded wires together. Do not connect a soldered
wire end to the Alpha2 Series Controller.
• To avoid damaging the wire, tighten to a torque of 0.5 - 0.6 N•m.
• Do not install in areas with: excessive or conductive dust, corrosive
or flammable gas, moisture or rain, excessive heat, regular impact
shocks or excessive vibration.
• The connectors must be covered to prevent contact with "live" wires.
• The Alpha2 Series Controller must be installed in distribution box or
a control cabinet.
• Leave a minimum of 10mm of space for ventilation between the top and
bottom edges of the Alpha2 Series Controller and the enclosure walls.
Mitsubishi Electric Automation, Inc.
AL2-
AL2-
AL2-
AL2-
14MR-A
14MR-D
24MR-A
24MR-D
100-240V
100-240V
24VDC
24VDC
AC~
AC~
100 -
24VDC
100 -
24VDC
240V
Sink/
240V
Sink/
AC~
Source
AC~
Source
8
8
15
15
6
6
9
9
124.6 x 90 x 52
(4.91 x 3.54 x 2.05)
0.35
0.30
0.30 (0.66)
(0.77)
(0.66)
• The Alpha2 Series is not designed to be used in life critical or fail
safe applications.
• Under no circumstances will Mitsubishi Electric be liable or
responsible for any consequential damage that may arise as a result
of the installation or use of this equipment.
• Please read this entire manual for further information.
2. DIMENSIONS
Unit of Measure: mm (inch)
AL2-14MR-_, AL2-24MR-_
6(0.24")
6(0.24")
DC INPUT
+ -
) A
(
(
) B
9
1
0
8
1
1
1
7
2
1
3
6
14
15
5
4
3
2
1
DC INPUT
+ -
(
) A
(
) B
9
1
0
8
1
1
1
7
2
1
3
6
14
15
5
4
3
2
1
POWER
24V DC
POWER
24V DC
ESC
+
ESC
-
+
OK
-
AL2-24MR-D
OK
AL2-24MR-D
RELAY
OUTPUT
6
7
5
8
9
OUT1
OUT2
OUT3
OUT4
OUT
RELAY
OUTPUT
6(0.24")
6
7
5
8
9
OUT1
OUT2
OUT3
OUT4
OUT
124.6(4.91")
6(0.24")
124.6(4.91")
AL2-10MR-_
6(0.24")
6(0.24")
DC INPUT
+
-
(
) A
(
) B
1 2
3
4
5
6
DC INPUT
+
-
(
) A
(
) B
1 2
3
4
5
6
POWER
24V DC
POWER
ESC
24V DC
+
ESC
+
-
-
OK
RELAY OUTPUT
AL2-10MR-D
OK
AL2-10MR-D
RELAY OUTPUT
OUT1
OUT2
OUT3
OUT4
6(0.24")
OUT1
OUT2
OUT3
OUT4
71.2(2.8")
6(0.24")
71.2(2.8")
3 INSTALLATION
n MOUNTING NOTES
The Alpha2 Series' safe design means the user can install it almost
anywhere but please take the following points into consideration.
• Do not install in areas with excessive or conductive dust, corrosive
or flammable gas, moisture or rain, excessive heat, regular impact
shocks or excessive vibration. Do not place in water or let water leak
onto the controller.
• Do not allow debris to fall inside the unit during installation.
• Keep as far as possible from high-voltage cables and power
equipment.
• The Alpha2 Series Controller must be installed in a distribution box
or a control cabinet.
ALPHA2 QUICK START MANUAL
+
-
E01 E02
+
-
E01 E02
+
-
E
0
3
E
0
4
+
-
E
0
3
E
0
4
52(2.05")
52(2.05")
52(2.05")
52(2.05")
3
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