4.3.6 VAC Valve Firing Voltage
Firing Voltage
Source
Trigger Signal
Source
Optional Timer
Adaptor Relay *
Pattern Control
Jumpers
Melt unit
any VAC
trigger
no relay
present
External
customer
VAC trigger
no relay
not present
External
customer
VAC trigger
AC relay
present
External
customer
VDC trigger
DC relay
present
* Timer adaptor relay isolates melt unit power from an external
power source
4.3.7 VDC Valve Firing Voltage
Firing Voltage
Source
Trigger Signal
Source
Head Driver
Required
Pattern Control
Jumpers
DC Head
Driver
any 3–32
VDC trigger
DC Head Driver
not present
4.3.8 Foot Switch Trigger for Semi-automatic Systems
A manually operated foot switch allows operator to control
adhesive deposition through automatic applicators while keeping
hands free. The foot switch assembly may be factory installed or
added later. See Section 9.7: Accessories.
12
LS10 and LS20 19600-121
Copyright 2010 Astro Packaging
