Service Settings At The Electrical Components - Duerkopp Adler 550-12-12 Service Instructions Manual

13. Service Settings at the Electrical Components

Overview Class 550-12-12
Monitor controls with 2
30-pin plug connections
3
Controls concept for the Class 550-12-12
The following explanations and setting notes are important as a basis
for the understanding of the unit.
Service work on the electrical components is not possible without this
knowledge.
Individual controls are coupled with one another.
The chain stitch machine head cl. 935-940-6 is powered by an Efka se-
wing drive 1 of the newest type.
This drive generates, per stitch, a count signal, which is directed, via
an intermediate control (= interface) 2 to the monitor control 3 .
At the same time this interface serves as distributor for all electrical si-
gnals.
In the monitor control a program procedure has been entered which si-
multaneously with the individual steps switches the solenoid valves for
crimping values or controls a tape feed unit 4 with tape pull-off unit 5 .
The successive switching of the steps occurs via the count signal of
the Efka sewing drive.
Coupled current supplies:
The monitor controls require, for the CPU and the screen, a 5V or 12V
current, both of which are generated by the built-in 230V mains con-
nection.
The tape pull-off unit 5 , the interface 2 and the inputs/outputs of the
monitor controls 3 (and thus the tape feed unit 4 ) are all supplied by
the 24V current of the Efka drive.
Tape Feed Device
1
Tape Pull-off Device
5
Cl. 935-940-6
4
2
Only for programming
43