APC - 224650 Issue 1.pdf - 第28页
ALL PURPOSE CLAMPING (APC) APC CONTROL 1.16 All Purpose Clamping (APC) Manual Chapter Issue 1 Nov 16 Sof tware Controlled Air Regulator The software co ntrolled air regulator ta kes electrical input s and converts them t…
ALL PURPOSE CLAMPING (APC)
APC CONTROL
Chapter Issue 1 Nov 16 All Purpose Clamping (APC) Manual 1.15
The over top plate valve (3) controls a pair of double acting slide tables which
cause the top plate to extend or retract. A pressure regulator controls each
action; the regulators are factory set and must not be adjusted. A speed
controller is employed to control the speed of the over top clamp retract
movement; this prevents board movement at the end of the clamp sequence. If
a clamping problem persists escalate it to Customer Support Group. Air lines
to and from the over top clamp cylinders are coloured red.
Figure 1-5 Over The Top Pneumatics - Valve 3
The Z clamp valve (6) controls a pair of pneumatic clamps. When on, the clamps
are activated and are used to hold and maintain the mid plate position during
printing, when off the clamps are open.
Figure 1-6 Z Clamp Pneumatics - Valve 6
Pressure
Regulator
Over Top Cylinders
Speed
Controller
To Rear
APC module
To Rear
APC module
Front
APC module
Valve 3
Over Top Clamp
Extend / Retract
Pressure
Regulator
Z Clamps
To Rear
APC module
Front APC module
Valve 6
Z Clamps
To Rear
APC module
ALL PURPOSE CLAMPING (APC)
APC CONTROL
1.16 All Purpose Clamping (APC) Manual Chapter Issue 1 Nov 16
Software
Controlled Air
Regulator
The software controlled air regulator takes electrical inputs and converts them
to a proportional pressure output. The output is dependent upon the upper level
set at the machine input supply solenoid.
The valve comprises a control circuit which performs the voltage/pressure
conversion, an exhaust valve which discharges excess air pressure, an air
supply valve which controls the output pressure for the specific function and a
pressure sensor which provides feedback to the control circuit.
In the APC system, the clamp pressure function is programmable; for details on
how to set these, refer to the APC Software chapter of this manual.
Pneumatic
Regulators
Three pneumatic regulators are employed to regulate the pressure for the
following functionality:
• Top clamp extend pressure
• Top clamp retract pressure
• Mid plate balance
-
Control Circuit
Air Supply
Valve
Out
Out
Exhaust Supply
Valve
Discharge
Input Signal
Output Pressure
Pressure Sensor
+
Top Clamp Extend
Pressure Regulator
Top Clamp Retract
Pressure Regulator
Mid Plate Balance Regulator
0
0.1
0.2
0.3
0.4
MPa
0
0.1
0.2
0.3
0.4
MPa
MPa
0
0.5
View on Pneumatic Manifold
ALL PURPOSE CLAMPING (APC)
APC CONTROL
Chapter Issue 1 Nov 16 All Purpose Clamping (APC) Manual 1.17
The amount of pressure used to clamp (top plate lowering onto PCB board) is
controlled by a pneumatic regulator via the machine software parameters, refer
to the APC Software chapter of this manual. The mid plate balance regulator
provides sufficient upward lift to hold the mid plate weight.
NOTE
All three regulators are factory set to achieve the optimum response for the
operation, but the settings are also included in the Adjustments and Settings
section of this chapter for reference.
IO Node 5 Node 5 provides the electrical connection to the solenoids, CAN Bus and the
ITV valve.
Figure 1-7 Node 5
Connector Description
N5PL1 +12/+24V Power Input
N5PL2 CAN In
N5PL3 CAN Out
N5SK6 Digital Out 0-4 ~ APC Solenoid Bank
N5SK7 Top Plate Retract Front (Inductive Proximity Sensor)
N5SK8 Top Plate Retract Rear (Inductive Proximity Sensor)
N5SK10 Analogue ~ Clamp Pressure Regulator
NODE 5 OTS & HTC BOARD
198769 ISSUE
N5SK9
N5SK11
N5SK7
N5PL2
N5PL3
N5SK6
N5SK10
N5SK8
N5SK5
N5SK3
N5PL14
N5SK2
N5SK1
N5SK12
N5PL1
N5SK4