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6. CONNECTION OF REMOTE I/O UNIT
6.5 Outline of Digital Signal Input Circuit
I - 60
Input conditions
The input signals must be used within the following condition ranges.
Sink type
Input voltage at external contact ON 6V or less
Input current at external contact ON 9mA or more
Input voltage at external contact OFF 20V or more, 25.2V or less
Input current at external contact OFF 2mA or less
Tolerable chattering time 3ms or less (Refer to T1 below)
Input signal holding time 40ms or more (Refer to T2 below)
Input circuit operation delay time
3ms ≤ T3
=
.
.
T4 ≤ 16ms
Machine side contact capacity 30V or more, 16mA or more
Source type
Input voltage at external contact ON 18V or more, 25.2V or less
Input current at external contact ON 9mA or more
Input voltage at external contact OFF 4V or less
Input current at external contact OFF 2mA or less
Tolerable chattering time 3ms or less (Refer to T1 below)
Input signal holding time 40ms or more (Refer to T2 below)
Input circuit operation delay time
3ms ≤ T3
=
.
.
T4 ≤ 16ms
Machine side contact capacity 30V or more, 16mA or more
T1 T1 T1T1
T2T2
T4 T4 T3T3