LNS QUICK LOAD SERVO III MI - Pneumatic Valve

CHAPTER 5: PNEUMATICS 5-5
QUICK LOAD SERVO III MI
3. PNEUMATIC VALVE
3.1. Description
The pneumatic battery includes the control and monitoring elements of the barfeed system pneumatic
circuit.
3.2. Layout of the elements
Designation Description
A Inlets
B Outlets
C Silencer
3.3. Manual operation
Directly controlled by the PLC, the electro-valves activate the pneumatic cylinders.
By pressing a key (B), the pneumatic cylinders can be activated manually. This manoeuvre may prove to
be useful during tests or maintenance.
When the (B) key is released, the pneumatic cylinder returns to its resting position (except for pneumatic
cylinders activated by 2 electro-valves).
Designation Description
A Air outlet
B Manual activation key
3.4. Air pressure switch
To guarantee an optimal work of the bar feed system, the service
pressure must be at least 5 bars (75 Psi). The pressure switch serves to
confirm that this pressure is present and adequate.
The air pressure switch is directly integrated into the pressure gauge.
Set up procedure for the pressure switch:
• Remove the glass of the pressure gauge
• With a screwdriver, turn the setting screw
• Place back the glass
A
B
VQC........-5
1
2
3
4
5
SMC
A
B
C
B
A