Efka dc1550 - Puller Function Using Signal A1;A2; Edge Trimmer with Signal A1

Instruction Manual
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The speed mode can be set using parameter306/316. The speed limitation is effective only when the signal is
On.
306/316
0
Pedal controlled speed
1
Limitation to speed n9 (parameter 288)
2
Limitation to speed n11 (parameter 289)
The function for A1/A2 can be enabled or disabled separately using parameter 307/317.
Using parameter 308/318 it is possible to select if the signals shall be activated with or without delay stitch
count.
308/318
0
Without delay stitches
1
with delay stitches
Separate stitch counts can be selected using parameter 309/319.
The switch-off moment can be set using parameter 320.
320
0
Signals effective until seam end
1
Signals effective until pedal has been pressed to pos. 0 (neutral)
Using parameter 330 for signal A1 and parameter 335 for signal A2, it is possible to select if these signals and
sewing foot lifting shall be coupled or these signals and backtacking shall be coupled.
330/335
0
Coupling off
1
Coupling with sewing foot lifting
2
Coupling with backtacking
3
Coupling with sewing foot lifting and backtacking
Signals A1/A2 can be inverted using parameter 331/336.
Signals A1/A2 can be switched using the “F“ key on the V820/V850 control panel if parameter 008 is set
accordingly.
7.21.1 Puller Function Using Signal A1 and/or A2
Puller operation is possible using signals A1/A2. Use the following parameters:
 300/310 Selection of power transistor for the puller solenoid.
 301/311=4 Signals A1/A2 enable the puller function.
 Select the input for triggering the puller function using parameters 240...249=49/52. This way, the puller
can be lifted and lowered manually.
 302 + 303/312 + 313=0 The puller will be lifted at the start of the seam without delay.
 309/319 Number of stitches until the puller is lowered at the start of the seam.
 330/335 Coupling of the puller and sewing foot lifting or coupling of the puller and backtacking.
 307/317 Puller function On (puller up)/Off (puller down).
 If parameter 008=6/7 , the puller (signals A1/A2 ) can be lifted or lowered by pressing key 9 on the
V820/V850 control panel.
7.21.2 Edge trimmer with signal A1
Signal A1 can be used for the edge trimming function. Use the following parameters:
 246=49 Input in7 for initiation of the edge trimming function. For example, a knee switch could be
connected here.
 844=98 Key S5 on the multiple-function key bar can be used for turning the edge trimmer on and off.
 300=5 Selection of end stage M5 (ST2/32) for the edge trimmer.
 301=4 Signal A1 initiates the edge trimming function.
 302...306=0 The edge trimmer is turned on at the start of the seam, without delay.
 307=1 Edge trimmer On.
 308=0 No delay until activation of the edge trimmer.
 309=0 Stitch counting Off
 330=3 Coupling of the edge trimmer with sewing foot lifting and backtacking.
 331=1 Coupling of the edge trimmer with sewing foot lifting and backtacking.
 If the parameter 008=6 is set, pressing the 9 key on the V820/V850 control panel can turn the edge trimmer
on or off.