Galaxy EX Safety Features.pdf - 第8页
SA FETY FEA TUR ES GENERAL 2.8 Tech nical R efer enc e Manu al Ch apte r Issu e 6 , Jun 18 T wo Button Control Switches The two butto n control swit ches or jog swit ches are positi oned such as to mainta in maximum safe…
SAFETY FEATURES
GENERAL
Chapter Issue 6, Jun 18 Technical Reference Manual 2.7
Lid Bolt A pneumatically operated lid bolt is fitted to prevent the front printhead cover
from being raised during the print cycle.
• The lid bolt is withdrawn and the printhead cover may be raised:
• When Open Cover is requested by software
• When pause or stop is selected during a print cycle
• When the EMO is pressed
Safety Devices The safety features designed into this machine are for the protection of all
operator and maintenance personnel. ASM strongly recommend safety
devices are never overridden.
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.