Advertisement
1
42
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
Read-out is also under rhe control of P5 through
P8 except that read-out pulses are index line pulses.
Also, read-out is under further control if RlBL
(die card lever relay), R19B (product summary
relay), and R29AL ( group multiplier relay).
If
any of these three relay points are open, the pro-
duct cannot be read from the electronic unit to
the punch.
Read-out is further controlled by the P14 cam
contact (Section 4B), which applies anode poten-
tial to the read-out power tubes only during ,the
9 through O punching time of the cycle. The elec-
tronic portion of the read-out circuit is reserved
for the section on ,the electronic computing cir-
cuits; only the portion on the punch unit will be
covered. Read-out pulses from the electronic unit
come to the punch under the control of P7 and
P8 through the cable and to the hubs labelled
PRODUCT
(Section 15B).
Normal wiring for
punching the result is from the
PRODUCT
hubs
to the
PUNCH
hubs. The circuit for energizing a
punch magnet from the product counter is as fol-
lows: post 3 (Section YB), through R12B (Section
1 FB), punch magnet common, through punch
magnet, hub, wire, to hub marked
PRODUCT,
to
cable connector, through cable to electronic unit,
back through cable to CNp28 (Section 4A), P14,
to +I40 volt terminal.
Punch Suppression
If it is desired to suppress punching in a card,
the card is either X-punched or punched with a
control digit in a specified column.
The control
punching then causes
he
pickup of R12 to sup-
press punching on the cycle following.
R15 (Section 9B) is the
X
relay which picks up
from 0.3 through 1 1.3 of each cycle under control
of P37. Points of R1T are used in the
X
pickup
circuits of various relays.
For example, RIYAU
is in the X pickup circuit of R11 (Section 8B), so
that R11 can pickup only on X's if the
X
pickup
is wired from rhe first set of brushes (read for en-
try and control). If it is desired to pick R11 on
other digits, the
D
pickup hub is wired from the
first set of brushes.
The sequence of operations for punch suppres-
sion is shown in Figure 49. When R I 1 picks, the
R
1 1
A points close to hold R11 energized through
P21 until 14.5 of the next cycle. The R I 1B points
establish a circuit to pick R12 under control of
P22. If the punch suppression device is wired to
suppress on X's, R12 will pick up at 13.6, pro-
vided R11 is already energized. R12A points close
to hold R12 through the R12H coil until P23
breaks at 13.4 of the same cycle. R12B is in the
punch magnet common circuit so that no punch-
ing can occur as long as R12 is energized.
X Cord Pamsrm
X Card Possrs D i r
Entry Brushas
k
--I+--
(Punching Suppressed)
Figure 49. Sequence o f Operations on Punch Suppression
Advertisement
