EFKA SM210A5710
15
7.1.1
Timing Diagram “Synchronous Stepping Motor Operation“ (Pa. 290=0)
Abbreviations for d.c. drive:
POS1
= Position 1 on the sewing machine
POS2
= Position 2 on the sewing machine
FL
= Sewing foot lift
Abbreviations for stepping motor:
SM>>
= Direction of rotation of stepping motor: cw (speed synchronous with d.c. drive)
SM<<
= Direction of rotation of stepping motor: ccw (speed synchronous with d.c. drive)
in1
= Pushbutton for tape cutter
in2
= Pushbutton for metering device
M3 (BL)
= Signal “blowing”
M7 (SML)
= Signal “stepping motor running”
M8 (BM)
= Tape cutter
M9 (DR)
= Signal “direction of rotation”
*9
Synchronous operation according to d.c. drive speed. The transmission ratios are selected by means of pushbuttons 1...4
on V810 and pushbuttons 1...9 on V820.
*10
Signal “direction of rotation remains On until the direction of rotation is reversed.
POS.1
ST2/ 20
DC
-
+
- 1
n
- 2
0
1/ 2
1
n2
n1
n2
n7
MODE- 0a
POS.2
ST2/ 35
FL
ST2/ 21
t3
t x
ST1/ 23
ST1/ 24
ST1/ 25
M9
M8 (BM)
(DR)
SM
SM
ST1/ 12
ST1/ 27
ST1/ 28
(SML)
ST1/ 11
SM
ST1/ 7
SM
in1
M3
M7
M2
SM
in6
in2
(FF)
(BL)
9
MODE- 0b
10
Содержание SM210A5710
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Страница 46: ...EFKA SM210A5710 46 For your notes...