Tabla de contenido
1.
DESCRIPTION
2.
OPERATING PRINCIPLE
2.1.
Piston compressors ............................................................................................................................ 2
2.2.
Air treatment unit .............................................................................................................................. 2
3.
MILLENIUM PLC
To ensure personal safety and to avoid any damage to equipment, it is essential to follow the
instructions contained in this document and any other documentation provided with the
device, and particularly the instructions on "Safe Practice".
Please ensure you are familiar with the operating instructions prior to commissioning your
equipment. Damage which may arise from incorrect siting or installation is not covered by our
guarantee.
1.
DESCRIPTION
The MILLENIUM M3 for AIRMIL'S piston is a PLC programmed to ensure the operation of a compressed air unit
composed of 2 piston compressors and if applicable 2 air treatment lines.
Schematic diagram: AIRMIL'S 2 or G2 compressed air unit with 2 air treatment systems
2.
OPERATING PRINCIPLE
2.1. Piston compressors
The two compressors start in sequence according to two pressure thresholds: mot.1 and mot.2.
They stop at the same threshold: Stop. The Stop and Hysteresis thresholds are user adjustable.
They are set to: Stop = 10 bar and Hysteresis = 2 bar
Motor 1 (priority motor) starts at 10 - 2 = 8 bar.
The mot.2 threshold is calculated from mot.1: Mot.2 = mot.1 - 0.5 bar = 7.5 bar factory setting.
The control mode is "on/off": When the control pressure reaches mot.1, the priority compressor starts; at the
Off pressure, it stops.
The priorities are reversed when the priority motor has accumulated 30 minutes of operation (adjustable
value).
520057-01
MILLENIUM M3 for AIRMIL'S with piston compressors
2.2. Air treatment unit
2
When the "ON/OFF" button of the air treatment unit [A] is "ON", the pneumatic valve [A] is open. When the
2
compressor [A] or [B] starts up, the air treatment unit [A] starts up too.
When the "ON/OFF" button of the air treatment unit [A] is "OFF", the pneumatic valve [A] is closed and the air
treatment unit [A] can't start up.
2
3.
MILLENIUM PLC
Parameter management
By pressing the
button several times, the fourth line will display successively:
STOP 0010.0:
Compressors' stop thresholds. This threshold can be set between 5 and 15 bar.
HYSTERESIS 0002.0: Hysteresis between the Stop threshold and the priority motor threshold (Mot.1).
MOTOR 2 0007.5:
Running threshold of the auxiliary motor.
This threshold is automatically modified by the Motor 1.
Motor 2 = Motor 1 – 0.5 bar.
H M A 00000:
Hour meter compressor A.
H M B 00000:
Hour meter compressor B.
PRIO TIME 00030:
Cumulated time of priority operation. This time is adjustable from 30 to ~ in minutes.
For AIRMIL'S 2 or G2 with 2 piston compressors without air treatment unit
M 3067 GB2:
Program Number, where GB2 is the version (here GB2 indicates version 2).
For AIRMIL'S 2 or G2 with 2 piston compressors and 2 air treatment units
M 3225 GB0:
Program Number, where GB0 is the version (here GB0 indicates version 0).
To change settings: press
during 5 seconds. Press
you have entered the new setting, press
Alarm management
DISJUNCT.A or DISJUNCT.B or DISJUNCT.A-B will appear flashing on the third line of the display if a
disjunction is detected.
Press the
key after having solved the disjunction.
A dry contact alarm synthesis exists, which is reversed when one of the alarms is present.
st
1
line: regulation pressure in bar.
nd
2
line: motors in operation
air treatment unit in operation
rd
3
line: disjunctions
th
4
line: display:
● thresholds
● hours meters
● program number.
or
to increase or decrease the value. When
to confirm
2
Tabla de contenido
