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34
The minimum pulse widths for inputs IN00000 (A-phase input) and IN00001 (B-
phase input) are as follows:
100
µ
s min.
T
1
T
2
T
3
T
4
: 12.5
µ
s min.
Phase A
Phase B
50
µ
s min.
12.5
µ
s
min.
Pulse plus direction input mode, Up/down input
mode, Increment mode
Differential phase mode
12.5
µ
s
min.
T
1
T
2
T
3
T
4
The minimum pulse width for input IN00002 (Z-phase input) is as follows:
50
µ
s min.
500
µ
s
min.
Phase Z
Interrupt Inputs
Inputs IN00003 through IN00006 can be used as interrupt inputs (interrupt input
mode or counter mode) and quick-response inputs. The minimum pulse width
for these inputs is 50
µ
s.
Expansion I/O Unit Input Specifications
Item
Specification
Input voltage
24 VDC
+10%
/
–15%
Input impedance
4.7 k
Ω
Input current
5 mA typical
ON voltage
14.4 VDC min.
OFF voltage
5.0 VDC max.
ON delay
1 to 80 ms max. Default: 10 ms (See note.)
OFF delay
1 to 80 ms max. Default: 10 ms (See note.)
Circuit configuration
IN
IN
COM
4.7 k
Ω
Internal
circuits
Input LED
750
Ω
Note
The input time constant can be set to 1, 2, 3, 5, 10, 20, 40, or 80 ms in the PC
Setup.
Caution
Do not apply voltage in excess of the rated voltage to the input terminal. It may
result in damage to the product or fire.
Specifications
Section 2-1
