HEIDENHAIN ERN 1323 Instructions De Montage page 21

see, vedi,
|t d | † 50 ns
U ‡ 2.5 V (–I = 20 mA)
H H
U † 0.5 V (I = 20 mA)
L L
U
a1
U
a2
U
a0
a ‡ 0.45 µs
U , U , U
a1 a2 a0
U , U , U , U
a1 a2 a0 aS
I, II, III
I, II, III
TTL: max. 300 kHz
TTL x 2: max. 600 kHz
U :
aS
Fault detection signal
Segnale di malfunzionamento
U = High:
aS
U = Low:
aS
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