Omron DEVICENET#05-2003 Operation Manual page 183

GT1-CT01 Counter Unit
Input Specifications (Encoder Input: A, B, Z, External Input: IN)
Item
Encoder input (A, B, Z)
ON voltage 19.2 VDC min. (between each
input terminal and V)
OFF voltage 4 VDC max. (between each input
terminal and V)
OFF current 1.0 mA max.
Input current 18 mA max./point at 24 VDC
(between each input terminal and
V)
ON response ---
time
OFF response ---
time
Insulation 20 M min. at 250 VDC (between isolated circuits)
resistance
Isolation Photocoupler
method
Number of cir- 1 count input point
cuits
Minimum
Encoder Inputs A and B
response
Waveform
pulse
Input rising time/falling time:
3 ms max. at 50 kHz with pulses
with a duty factor of 50%
Relationship between A and B
phases with offset phase input
Phase
A
Phase
B
Encoder Input Z
Specification
20 s min.
10 s min. 10 s min.
20 s min.
5 s 5 s 5 s 5 s
min. min. min. min.
0.1 ms min. 0.1 ms min.
Section 5-4
External input (IN)
15 VDC min. (between each
input terminal and V)
5 VDC max. (between each
input terminal and V)
1.0 mA max.
6 mA max./point at 24 VDC
(between each input terminal
and V)
1.0 ms max.
1.0 ms max.
1 point
1 ms min. 1 ms min.
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