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Page 15 GS-394-02 The rotary dispensing head has several unique features: • High operating speed of 25,000 cycle/hour. • Input tape class changeover requires 30 seconds by adjusting the input tape guides. • Only one cut …
Page 14 GS-394-02
Tool Kits
• A kit containing basic hand tools and common hardware items
is included with each machine.
• An optional Site Calibration Tool Kit contains special tools
required for machine calibration, only one kit is required per
customer site.
Add-On Sequencer Module
The capacity of each add-on module is 20 dispensing stations, for
processing 20 discrete component types or values. Each station must
be equipped with a dispensing head. An unused dispensing station
does not affect normal machine operation, but must contain a blank
dispensing head.
All add-on sequencer modules are identical. Interface cables and
pneumatic connections are “daisy-chained” from module to module.
This speeds installation and simplifies trouble-shooting.
When a head runs out of components, a “pop-up” screen is displayed
on the monitor, indicating which head needs to be reloaded.
Dispensing Heads with Optical Refire
The VCD/Sequencer 8 uses rotary dispensing heads to cut and drop
components on the sequencer chain. Rotary dispensing heads are
available in two models: 5mm (0.200") pitch and 10mm (0.400")
pitch, with optical refire for each of the pitch variables.
Dispensing heads are not included with add-on modules and must be
ordered separately to meet individual machine requirements.
Optional Features
Page 15GS-394-02
The rotary dispensing head has several unique features:
• High operating speed of 25,000 cycle/hour.
• Input tape class changeover requires 30 seconds by adjusting
the input tape guides.
• Only one cut component is staged during component load,
reducing scrap and simplifying changeover.
• Symmetrical cutter provides two cutting surfaces for an
increased life.
• Low friction assembly requires minimal lubrication.
• Tape guide setting with lead screw allows fine adjustment of
tape guides.
• Detent provides a method of determining component position.
The optical refire circuit in the dispensing head senses a missing
component from the input tape and recycles (refires) the dispensing
head index mechanism to bring a component into position for
programmed dispensing. Because of its ability to cycle through
blank areas of the input tape, it reduces the need for operator
attention, thus increasing the effective output rate. This refire
feature is most useful when processing pre-inspected component
reels, in which gaps are left because of the removal of defective
components.
Each refire dispensing head is equipped with a light source and an
optical sensor. As a taped component is indexed into position for
dispensing onto the conveyor chain, one of its leads interrupts the
light beam.
If the light beam is not interrupted, a “part missing” signal is
generated causing the dispensing head to automatically index on the
next machine cycle which requires a part from that head. This
“refire” action repeats until a component is detected at the dispens-
ing position or a programmed maximum count is reached. Any
missing components in the input tape will cause refiring of the
dispensing head, reducing effective machine cycle rate.
Page 16 GS-394-02
Expanded Range Component Verifier
The Expanded Range Component Verifier, Model 2864A, provides
for the on-line verification of component value and polarity. It is
capable of verifying most axial leaded components including capaci-
tors (value only), refer to GS-167, "Expanded Range Component
Verifier," for specific component values. The verifier station is
located on the insertion head assembly. Verification parameters are
entered as part of the pattern program commands. The verifier halts
the machine for components failing verification and allows them to
be replaced at the manual load/replace station of the insertion head
if the REPAIR function is selected.
Using the verifier option greatly reduces the possibility of inserting
defective, out-of-sequence, or incorrectly oriented components.
Jumper Wire Dispenser System
A jumper wire dispensing head and feeder assembly included in this
option processes jumper wires from a continuous spool of wire,
eliminating dispensing from reels of previously taped and reeled
jumper wires. It dispenses accurate lengths of cut wire and conve-
niently changes to various wire gages and lengths. It is available as
a factory installed option and as a retrofit kit. A maximum of two
Jumper Wire Dispenser Systems may be installed in any
machine configuration.
The Jumper Wire Dispenser System operates by drawing wire from
bulk input; a cardboard drum package works best. The wire feeder
assembly straightens and then feeds the wire to the dispensing head.
Pattern program control cycles the dispensing head, cutting a length
of wire from the continuous strand, and dispensing it onto the
sequencer chain.
Jumper Wire
Dispensing Head
Jumper
Wire
Feeder
Input
Jumper
Wire
Guide
Tube
Bulk
Wire
Input