Electrolux EMP-800 Service Manual download pdf (Page 16)

Technical Manual EMP 8x0.00/04/13 v5 wh Münzprüfer Dietmar Trenner GmbH, Germany

Version 1.51

Page 16/42 subject to technical modification EMP8x0.00/04/13 v5

The signal is, however, of a very short duration relative to the normal acceptance

output signal (credit pulse).

This preceding coin output signal pulses before the coin selector magnet is

activated. The signal has a maximum width of 10 ms if the coin selector is blocked

(from accepting coins) via the general blocking input. The coin selector will only

accept the coin if the general blocking signal is changed to “accept coin” during this

10 ms interval. The coin selector will release the normal coin acceptance signal

(credit pulse) once the coin has passed the coin light barrier.

The following two diagrams illustrate the function and timing of the preceding

signal.

Figure 7 Preceding signal after the coin has been identified. The main blocking

input line does not go high.

Figure. 7 illustrates that the coin is rejected because the general blocking input line

was not changed after the coin was identified. The preceding coin output signal

pulse has a maximum duration of 10 ms.

Figure 8 Preceding signal after coin identification, followed by the acceptance of

the coin.

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Electrolux EMP-800 Service Manual Page 16