Instruction manual

- DA321G5321
- 57 -
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
330/335 = 1
Coupling with sewing foot lifting
330/335 = 2
Coupling with backtacking
330/335 = 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.
6.33 Actuator
The commands for the sewing process are inputted using the actuator which is connected to the pedal. EFKA
offers two different functional variants.
1. Digital – works only in steps (e.g. EB301A).
2. Analog – Characteristic programmable, continuously variable, 12, 24, or 60 steps (e.g. EB401).
Which actuator type is connected is automatically detected by the control.
Instead of the built-on actuator another actuator can also be connected to socket B80.
6.33.1 Digital actuator
Table: Coding of the Pedal Steps
Pedal step
D
C
B
A
-2
H
H
L
L
Full heelback
(e. g. initiating the seam end)
-1
H
H
H
L
Slight heelback
(e. g. sewing foot lifting)
0
H
H
H
H
Pedal in pos. 0 (neutral)
½
H
H
L
H
Pedal slightly forward
(e. g. sewing foot lowering)
1
H
L
L
H
Speed stage
1
(n1)
2
H
L
L
L
Speed stage
2
3
H
L
H
L
Speed stage
3
4
H
L
H
H
Speed stage
4
5
L
L
H
H
Speed stage
5
6
L
L
H
L
Speed stage
6
7
L
L
L
L
Speed stage
7
8
L
L
L
H
Speed stage
8
9
L
H
L
H
Speed stage
9
10
L
H
L
L
Speed stage
10
11
L
H
H
L
Speed stage
11
12
L
H
H
H
Speed stage
12
(n2) Pedal completely
EB.. Actuator
2) Nominal voltage 5V, I
max
20 mA