12. Function Sequences Service
Manual
12 Type Edition Page
13 9010 4
Power supply and start, machine with coin meter
Some control circuits do not receive voltage until the door and lock switch
S3 (3) are closed (point B ). Others receive voltage even when the door is
open (point A ). These feed points recur in other function diagrams.
The same conditions apply for feed points C and D . Point C does not
receive voltage until a switch S4 (9) in the safety lock delay unit is closed
(i.e. door is locked). Point D receives voltage even when the door is open.
Start
When a program is completed, the machine stops at program stage 51 and
the door can be opened.
The door must be closed for the machine to start. It is only when the door is
closed that the row 11a (5) receives voltage. When correct number of coins
have been inserted into the coin-meter, a contact (7) in the coin-meter is
closed and the coil for rapid advance (8) recieves voltage (row 11a (5) is
closed in stage 51).
At stage 52 row 11a is released but the timer advances to stage 1 since
row 15a (6) is closed at stage 52. This design always feeds the timer to
stage 1 and directly start the wash program when correct number of coins
have been inserted.
Sequence diagram
1581
4a. Rapid advance
11a. Start
15a. Rapid advance