PLANT CONTROL SYSTEMS
By making use of Plant control management system a very efficient solution can be achieved. The AIR CONTROL 4
can be incorporated as part of a Multicontrol system / management console
that will make compressors stop and start depending on demand, and create an efficient set-up.
This together with the use of variable speed compressors, means producing the exact amount of air requirements for the requirements needed.
By using the AIR CONTROL 4 in a Multicontrol
system:
- Up to 10 compressors can be managed together
- Any make of compressor (with suitable hardware)
// View plant control literature.
// Read more on
energy savings.
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AIR CONTROL 4 LAYOUT Front
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AIR CONTROL 4 LAYOUT Front
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AIR CONTROL 4 – Basic Functions |
- Configuration of the running mode from one single controller: load/unload or variable speed.
- Use of a weekly schedule with possible selection of two pressure bands.
- Every running parameters can be manually modified
- Auto restart (Security code protected)
- Remote control and default report.
- Calculation of the running time percentage at different load levels for ALLEGRO
- Dryer coordination for better dew point
- Dew point display or status (OK/WARNING)
- Choice of 3 languages amongst 23
- Full expansion capability, up to eight modules per compressor
- Master-Slave connection
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| AIR CONTROL 4 – SAFETY FunctionS |
- Rotation control (based on oil ΔT at start)
- Intelligent limitation of the number of motor start up
- High oil temperature limit
- Protection against start up at low temperatures
- Test of input / output
- History of malfunctions (5) with record of some running parameters that will help a technical diagnosis
- Prevent an auto restart after a long period of stop
- Time based setting
- ∞ is possible
- Delayed start is possible (for start up in cascade)
- Low and high dew point protection for PLUS version of the compressor.
- Features on LARGO 56/ALLEGRO 56 and bigger machines
- Pressure drop detection through the oil separator
- Protection against start up under pressure (minimum pressure setting)
- Protection against over pressure in the oil receiver (other safety before safety valve opening)
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| Additional FunctionS |
- Line Voltage Limits
- + 40 % to - 30 % of the nominal supply voltage.
- Supply drop-out
- The device will operate without disturbance with a supply voltage drop-out of 40 ms every second.
- Degree of Protection of Enclosure and Connectors
- Degree of protection at the front of IP 55 and at the back of IP 23, both according to IEC 529. Other devices have an overall protection of IP 23.
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Communication "Master-Slave" |
- Each AIR CONTROL 4 has a sequencer function built in
- Control from 2 to 4 compressors, 2 pressure sets possible
- The Master-Slave basic function is to maintain the air net pressure in a defined and narrow band while maintaining equal running hours on the machines attached.
- Integration of one ALLEGRO
- One master and up to three slaves
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Communication via optional modules |
- Measure of motor winding temperatures
- Measure of ΔP on network filters or integrated filters
- Optional module Input /Output
- Pressure
- Measure of network pressure
- Measure of pressure drop through duct work
- Temperature
- Measure of water temperature
- Measure of dew point on external dryer
- Measure of air temperature though duct work
- Humidity sensor
- Module of communication MODBUS
- Module of communication PROFIBUS
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