Download Print this page

Circuits; Introduction; Functional Description - IBM 1627 Manual

Hide thumbs Also See for 1627:

Advertisement

INTRODUCTION
The circuits presented in this section describe the
theory of operation for the
1627.
DRUM
CONTROL
CIRCUIT
1=
D=--
--- --- -- -- --
MANUAL
DRUM
DOWN
PULSES
DRUM DOWN
ONE-
SHOT
01-02
DRUM
UP
PULSES
DRUM UP
ONE-
SHOT
012-013
I
I
DRUM UP-
MANUAl.
L
__
REVERSIBLE
__________
R_I_NG~E~
SECTION 3 CIRCUITS
FUNCTIONAL
DESCRIPTION
The detailed block diagram of Figure 3-1 illustrates
the operation
of
tee 1627 in terms of signal flow and
CHART
DRIVE
ON
- OFF
115VAC~
----
TAKEUP
SPOOL
--tEJ]
COIL
I
DRUM
STEP
MOTOR
M4
COIL
2
COIL 3
CARR IAGE
CARRIAGE
LEFT
PULSES
COIL
I
CARRIAGE
CARRIAGE
CON TROL
COIL 2
STEP
CARRIAGE
RIGHT
PULSES
CIRCUIT
COIL 3
MOTOR
M3
,
,
CARRIAGE
LEFT-
MANUAL
CARRIAGE
RIGHT-
MANUAL
--~
PEN
UP PULSES
'----
---:-
--
--
PEN
CONTROL
FLIP
-FLOP
019-Q20
CONTROL
STAGES
014-015
017
PEN
DOWN PULSES
+
3V
+
1.5V
GND
- 7.SV
-9V
-
24V
POWER
ON - OFF
I~>--_~
POWER
SUPPLY
Figure
3-1.
1627 Block
Diagram
PEN
SOLENOID
CONTROL
CIRCUIT
3.1

Advertisement

loading
Need help?

Need help?

Do you have a question about the 1627 and is the answer not in the manual?

Subscribe to Our Youtube Channel