The Alpha Class
Published on : Monday 30-11--0001
Features
-
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 |
AC Powered Models |
|
---|---|---|---|
Power Supply |
24VDC |
100-240VAC |
|
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 |
100-240VAC |
|
Input Current |
Sink: 5.5mA, 24VDC |
I01-I08 |
|
Response Time |
OFF - ON |
10 - 20 ms |
35-85 ms, 120VAC |
ON - OFF |
10 - 20 ms |
35-85 ms, 120VAC |
|
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:
-
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 |
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 |
It is used in offices , house for lighting, air conditioning, security, temperature, and pump/compressor control.
Mitsubishi Electric Corporation
Japan
TEL:+81-3-3218-1465.
E-mail: