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T Y P E
6 0 3
E L E C T R O N I C M U L T I P L I E R
is made in checking, or (4) when any card fails to
advance to the die or to the punch brushes 2 (read
for gang punching and checking).
Card lever contacts are provided to signal the
presence of cards in the magazine or at any of the
stations through the machine.
A stacker stop
switch signals a full hopper, while a relay is pro-
vided to signal an error when checking.
As soon as cards are placed in the hopper, R3
will pick up as follows: post 3, through fuse 6,
through R3 coil, hopper card lever contact, to post
1. The R3A contacts are in the R1O running hold
circuit.
The other card lever contact relays R1, R7, and
R8 are energized through their corresponding card
lever contacts when the contacts are closed by the
cards.
After the cards are placed in the hopper, it is
necessary to hold the start key depressed through
three complete cycles before the machine runs
continuously.
After the third cycle, the machine runs auto-
matically.
The card levers are designed so that
their contacts do not open between cards; there-
fore all card lever contacts remain closed once cards
start through the machine. As a safety precaution,
R1 is held by P33 between cards, and R8 is held
by P16 between cards. This insures the card lever
relays remaining energized even if the card lever
contacts open for an instant when corner cut cards
are used.
All that is necessary to keep the machine run-
ning continuously is to keep R10 energized. This
is done through the following circuits once cards
reach the second set of punch brushes: post 3,
through R10 coil, RlOAU, R7BL, R3A, RIAL,
stacker stop switch, stop key contact, RF7B, die
contact,
KO
bar contact, R6A, to R2A
O/P
and
post 1. This circuit is complete until any one of
the contacts is opened.
Reading Brush Circuits
R8B contact is used in the read for entry and
control brush reading circuit, while R7A contacts
are similarly used in read for gang punching and
checking brush reading circuit.
The purpose of
these contacts is to prevent readings from the
brushes when no cards are in position at the
brushes.
PI through P4 (Section 7A) serve as circuit
breakers for both sets of brushes. P1 and P2 con-
trol the making time at the line of index while P3
and P4 control the breaking time at three teeth
past the line and provide CB pulses of 3-tooth
duration.
The purpose of the first set of brushes is to read
the card for entering the factors in the various
counters and for
X
control, group multiplier con-
trol, sign control, while the purpose of the second
set of brushes is to read the card for checking or
for gang punching operations. The complete cir-
cuit for reading into a counter will be deferred un-
til the electronic circuits are discussed but the por-
tion shown on the punch unit diagram will be
traced.
To simplify the tracing of this circuit it
will be necessary to depart from the rule estab-
lished and start at the positive terminal. The cir-
cuit for reading into any one position of the mul-
tiplier counrer is as follows: post l , through P I ,
P2, P3, P4, R8B, common brush, contact roll,
through hole in card, individual brush, brush hub,
entry hub for multiplier counter (Section 1 FA),
through factor reversal relays, cable connector and
cable to electronic counter.
In gang punching, the punch hubs are con-
nected t o the second set of brushes, and a punch
magnet is energized when a hole is read in the col-
umn to which the punch magnet is wired.
The
circuit is as follows: post 3, through R12B (Sec-
tion lFB), punch magnet common connection,
punch magnet coil, punch hub, wire to hub, read
for gang punching brushes (Section 7 A ) , indi-
vidual brush, through hole in card, contact roll,
common brush, R7A contacts, P3, P4, PI, P2, to
post 1.
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