EFKA SM210A5710
25
7.3.2
Timing Diagram “Expander Feeding/Synchronous Stepping Motor Operation“ (Pa.290=3)
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
= Input for reset (FF)
in6
= Pushbutton for expander feeding
M7 (SML)
= Signal “stepping motor running”
M2 (FF)
= Signal “flip-flop”
M8 (BM)
= Tape cutter
M3 (BL)
= Signal “blowing”
M9 (DR)
= Signal “direction of rotation”
Parameter setting of stepping motor control for above timing diagram:
Sign
Function
Parameter
Mode of operation “expander feeding“
290 = 3
Expander feeding by means of number of steps c3
131 = 0
*9
Synchronous operation according to d.c. drive speed. The transmision ratios are selected by means of
pushbuttons 1...3 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/ 2 0
DC
-
+
- 1
n
- 2
0
1/2
1
n2
n1
n2
n7
POS.2
ST2/ 3 5
FL
ST2/ 2 1
t3
t x
0262/MODE-3c
ST1/ 2 8
ST1/ 2 4
M9 (DR)
ST1/ 2 5
SM
ST1/ 2 3
M8
M3
M7
ST1/ 2 7
(SML)
(BM)
(BL)
ST1/ 1 1
SM
ST1/ 1 2
in6
M2 (FF)
in2
SM
SM
ST1/ 7
in1
9
SM
10
0262/MODE-3d
Содержание SM210A5710
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