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7-3
Section
Counter Units
136
Item
Specification
Item
External input (IN)
Encoder input (A, B, Z)
Number of
circuits
1 count input point
1 point
Minimum
response pulse
Encoder Inputs A and B
Waveform
Input rising time/falling time:
3
µ
s max. at 50 kHz with pulses
with a duty factor of 50%
20
µ
s min.
10
µ
s min.
10
µ
s min.
Relationship between A and B
phases with offset phase input
Phase
A
Phase
B
Encoder Input Z
0.1 ms min.
5
µ
s
min.
5
µ
s
min.
5
µ
s
min.
5
µ
s
min.
0.1 ms min.
20
µ
s min.
1 ms min. 1 ms min.
Output Specifications (External Output: OUT1, OUT2)
Item
Specification
Rated output current
0.5 A/point
Residual voltage
1.2 V max. at 0.5 A DC (between each output
terminal and V and each output terminal and G)
Leakage current
0.1 mA max. at 24 VDC (between each output
terminal and V and each output terminal and G)
ON response time
0.5 ms max.
OFF response time
1.5 ms max.
Insulation resistance
20 M
Ω
min. at 250 VDC (between isolated circuits)
Isolation method
Photocoupler
Number of circuits
2 points