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ALPHA2 Simple Application Controllers - Main Units and Specifications

(12/30/2016)

Sequence Controllers - Alpha2 Series

Controllable I/O: 14 - 28 points
Main Unit I/O: 14/24 points

The Alpha Class

The Alpha2 is a controller designed to address simple control applications at the lower end of the industrial and commercial control markets. With simple analog processing integrated, a straightforward programming style and a built-in display, the Alpha2 is a highly affordable control solution

  • Integrated analog processing
  • Simple programming style
  • Relay and Transistor output options
  • Analog input and output options
  • High-speed counters up to 1 kHz
  • Language support for 7 different languages
  • Display area for messages and function block data
  • Built-in LCD screen for programming panel or operator
    interface functions
  • Programming with Alpha VLS

Product Details

All-in-one CPU, power supply, display and I/O. Expansion options include expansion boards for communication, high-speed counting or extra I/O.

Programming

Graphical “function block” style programming with drag and drop icons creates an intuitive environment for the user. The programming software also includes a simulation mode to allow off-line program testing without any hardware connected

Full Featured calendar and clock

The Alpha family has a calendar and clock with automatic summer and winter time switching.

Expansion
Four expansion boards are currently available 4 digital 24V DC inputs with two integrated counters, 4 digital 240V AC/DC inputs, 4 relay outputs and 4 transistor outputs.

Applications

The Alpha2 can be fitted to a range of lower end of the industrial and commercial control markets. Typical applications are listed below.

  • Lighting control
  • Heating ventilation and air conditioning (HVAC)
  • Lighting
  • Pump controllers
  • Building automation
  • Alarms and security systems

Alpha2 Main Units

Model Number

AL2-10MR-A

AL2-10MR-D

AL2-14MR-A

AL2-14MR-D

AL2-24MR-A

AL2-24MR-D

Stocked Item

S

S

S

S

S

S

Rating

UL • cUL • CE (EMC)

Integrated Inputs/Outputs

10

10

14

14

24

24

Digital Inputs

6

6

8

8

15

15

Analog Inputs

-

6

-

8

-

8

Channels

-

6

-

8

-

8

Integrated Outputs

4

4

6

6

9

9

Max. Power Consumption (W)

4.9

4.0

5.5

7.5

7.0

9.0

Typical Power Consumption

All I/O (W)

3.5 / 1.85 240VAC

2.5/0.75

4.5 / 2.0 240VAC

4.0 / 1.0

5.5 / 2.5 240VAC

5.0 / 1.0

ON / OFF (W)

3.0 / 1.55 120VAC

3.5 / 1.5 120VAC

4.5 / 2.0 120VAC

Weight (kg)

0.2

0.2

0.3

0.3

0.35

0.3

Dimensions (W x D x H) mm

71.2 x 90 x 52

71.2 x 90 x 52

124.6 x 90 x 52

124.6 x 90 x 52

124.6 x 90 x 52

124.6 x 90 x 52


Environmental Specifications

General Specifications

Alpha2

Ambient Temperature

Display: -10 to 55°C, Hardware: -25 to 55°C (storage temperature: -30 to +70°C)

Protection Rating

IP20

Noise Immunity

1000 Vpp with noise generator; 1µs at 30 - 100 Hz, tested by noise simulator

Dielectric Withstand Voltage

3750VAC, >1 min. according to EN60730

Allowable Relative Humidity

35 - 85% (no condensation)

Shock Resistance

Complies to IEC 68-2-27: 147 m/s² acceleration, 11 ms 3 x 3 directions

Vibration Resistance

Direct Mounting

Complies to IEC-2-6: 19.6 m/s² acceleration, 80 min. in each direction

DIN Rail Mounting

Complies to IEC-2-6: 9.8 m/s² acceleration, 80 min. in each direction

Insulation Resistance

500VDC, 7 MΩ Complies to EN60730-1

Ambient Conditions

No corrosive gasses, no dust


Electrical Specifications

Power Supply Specifications

DC Powered Models
(AL2-_MR-D)

AC Powered Models
(AL2-_MR-A)

Power Supply

24VDC
(+20% / -15%)

100-240VAC
(+10% / -15%), 50/60 Hz

Inrush Current at ON

7.0A (at 24VDC)

6.5A (at 240VAC)

Allowable Momentary Power Failure Time

5 ms

10 ms

Digital Inputs

Input Voltage

24VDC
(+20% / -15%)

100-240VAC
(+10% / -15%), 50/60 Hz

Input Current

Sink: 5.5mA, 24VDC
AL2-10MR-D (I01 - I06)
AL2-14MR-D/AL2-24MR-D (I01 - I08/ I09 - I15)

Source: 6.0mA, 24VDC
AL2-10MR-D (I01 - I06)
AL2-14MR-D/AL2-24MR-D (I01 - I08)

Source: 5.5mA, 24VDC
AL2-14MR-D/AL2-24MR-D (I09 - I15)

I01-I08
0.13mA / 120VAC (*1)
0.25mA / 240VAC (*1)

I09 - I15
0.15mA / 120VAC (*1)
0.29mA / 240VAC (*1)

Response Time

OFF - ON

10 - 20 ms

35-85 ms, 120VAC
25-55 ms, 240VAC

ON - OFF

10 - 20 ms

35-85 ms, 120VAC
50-130 ms, 240VAC

Analog Inputs

6 (10MR-D); 8 (14 & 24MR-D)

-

Analog Input Range

0-500

-

Resolution

9 bit, (10 V/500)

-

Conversion Speed

8

-

Input Voltage

0-10VDC

-

Input Impedance

142 ±5%

-

Accuracy

±5% (0.5VDC)

-

Note:

  1. Current leakage from sensors connected to the inputs might provide enough current to turn the controller ON. Do not use 2-wire sensors.

Output Specifications

Alpha2

Type

Relay

Switching Voltage (Max.)

250VAC, 30VDC

Rated Current

10M, 14M: 8A/com

24M (001-004): 8A/com

24M (005-009): 2A/point

Max. Switching Load - Inductive Load

14M, 24M: 249 VA/250VAC, 373 VA/250

24M: 93 VA/125VAC, 93 VA/250VAC

Minimum Load

10mA, 5 V DC

Response Time

<10 ms


Programming Specifications

System Specifications

Alpha2

Programming Method

Function block

Program Capacity

200 function blocks or 5000 bytes

Program Processing

Cyclic processing of the stored program

Number of Available Instructions

38 different function blocks

Program Storage

Integrated EEPROM and optional additional EEPROM cassette

Data Storage

At voltage loss the current status of values, running time meters, and real-time data are stored for up to 20 days
(at temperatures of 0 to 25 °C) using capacitors

Processing Time

1 ms + 20µs /logic instruction (complex commands 500/µs instruction)

Real-Time Clock

Seconds, minutes, hours, day of week, month, year (4-digit); accuracy: 5 s / day; automatic daylight savings time adjustment

Program Protection

3 levels using program and keys