Galaxy EX Safety Features.pdf - 第9页
SA FETY FEA TU RES GENERAL Ch apte r Is sue 6, Jun 18 Tech ni cal Ref erenc e Manual 2.9 The EMO swi tch, once p ressed, is a l atching switc h and re quires r esetti ng. Recov ery T o reset the EMO, turn the bu tton cl …
SAFETY FEATURES
GENERAL
2.8 Technical Reference Manual Chapter Issue 6, Jun 18
Two Button
Control Switches
The two button control switches or jog switches are positioned such as to
maintain maximum safety for the operator whilst solvent priming or paper
feeding with the printhead cover open. This requires both buttons to be
depressed simultaneously for the function to become active. The use of these
buttons is dependent on the function selected on the machine monitor. During
normal operation these buttons control paper feed and solvent prime
operations. When in maintenance mode, the two button control switches
control the following diagnostics:
• Print Carriage
• Squeegee Assembly/ProFlow Assembly
• Camera Axes
• Rail System
• Screen Alignment
• Rising Table
Only one button is required to drive the selected mechanism, the two buttons
are used to drive the mechanism in opposite directions, ie jog forward or jog
back.
Emergency
Shutdown
If an emergency stop is initiated via the EMO, all power and pneumatics to the
machine are removed. Electrical power remains to the M39 EMO enclosure
via the mains isolator but is removed from there to the M37 power supply unit.
Switching mains isolator to OFF removes electrical power from the M39 EMO
enclosure. Pneumatic supply is also closed off and any pressurised air
remaining within the machine’s system is vented via the pneumatic dump
valve.
Figure 2-1 Mains Electrical Supply
From Factory
Mains Supply
Mains Isolator
Switch
M37 Power Supply Enclosure
M39 EMO Enclosure
SAFETY FEATURES
GENERAL
Chapter Issue 6, Jun 18 Technical Reference Manual 2.9
The EMO switch, once pressed, is a latching switch and requires resetting.
Recovery To reset the EMO, turn the button clockwise until it unlatches.
Press the Start button, to restore electrical and pneumatic power to the
machine. When prompted by a screen message press the System button.
SAFETY FEATURES
PRINTHEAD COVER
2.10 Technical Reference Manual Chapter Issue 6, Jun 18
PRINTHEAD COVER
Raising the printhead cover allows access to the following areas:
• Printhead
• Paste Dispenser
• Squeegee/ProFlow
• Stencil/Screen
• Under Screen Cleaner
•Tooling
The printhead cover is accessible to the operator and a cam interlock safety
switch protects personnel from the mechanisms during normal line operations.
Raising the printhead cover renders the following areas of the machine
inactive:
• Lid Bolt
• Moving Rail Stepper
• Print Carriage Servo (axis stopped before power is removed)
• Paste Cartridge Tilt Up/Tilt Down Pneumatic Actuator
• Paste Dispense Solenoid and Stepper Motor
• Rail System Front and Rear Belt Motor Drives
• Rising Table Brake (brake engages when power is cut)
• Rising Table Servo
• Squeegee/ProFlow Stepper Motor(s)
• System Lamp
• Underscreen Cleaner Paper Feed Motor
• Underscreen Cleaner Solvent Pump
• Underscreen Cleaner Squeegee Solenoid
• Vacuum Tooling Solenoid
• X Camera Motor (axis stopped before power is removed)
• X Forward, X Rear and Y Chase Alignment Stepper Motors
• Y Camera Motor (axis stopped before power is removed)
Recovery Close the printhead cover. When prompted by a screen message press the
System button. This enables resumption of operations, where allowed by the
control system.