IBM Selectric - Page 133

ELECTRICAL SPECI FICATIONS
f---.
Component
Voltage 1
Current
2
D.C.
Resistance (o.~
Motor
115 1.0 amp
K/B Lock Solenoid
48
160 329 to 397
Ribbon
Shift Maanet (lMaanet) 48
160 345 to 455
.--
Red Ribbon Shift (2 Magnet)
and U.C. Shift Maanets
48
250 221 to 259
.-
All Other MaQnets
48
125
432
to 518
--
Ail Contacts
Shall operate with 10 volts at 40 mao or 48 volts
with 300 ma.
1.
Machine must perform all functions at ± 10% of specified voltages.
2.
Maximum currents at (in
mao )
specified operating voltages.
Magnet and Solenoid Operating Speeds
Component
Maximum Pick Time (48 V DC)
K/B lock Soienoid
55 ms.
Red Ribbon Shift Mq'gnet
(lor 2 maQnet me¢hanism)
12 ms.
All
Other' Magnets
10 ms.
10 MSAU M-rX
:8 MS DO
INITIAL PRINT CYCLE
REPEAT PRINT CYCLE
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SELECTION AND
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N/C
CHECKING CONTACTS
N/O
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PRINT fEEDBACK
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N/O
__ N/O
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81"
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PRINT fEEDBACK I
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-- ----
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--
32.0 MS MIN
40.0 MS MAX
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N/C
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N/C
N/C
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20° t 3
D
N/O
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------
---
-
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PRINT SELECTION
TIMING CHART
I I
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""-~
--
DEGREES
0'
10' 20'
40' 60' 80'
100' 120' 140'
160' 180'
200'
220'
240' 260' 280' 300' 320'
340'
360'
SELECTION CAM SHAfT
• MILL! SEC
3.587.17
14.3 21.5
2B.6
35.8
42.9
50.1
57.3 64.5 71.6
78.8
85.9
93.1 100.3 107.5 114.6
121.8
129.0
-
4-1