Omron GX-AD0471, Руководство пользователя, Страница: 222 / 394

9 Encoder Input Slave Unit
9 - 16 GX-series EtherCAT Slave Unit User’s Manual
 Pulse input timing specifications
Precautions for Correct Use
In order to satisfy the counter input specifications, it is necessary to pay attention to the type of
output driver of the encoder to be used, the length of encoder cable, and frequency of count
pulse.
Timing condition
A B C D E F G
<0.3
μ
s >1
μ
s >2
μ
s >4
μ
s >8
μ
s >2
μ
s >4
μ
s
C
B B
A A
ON
voltage
OFF
voltage
Terminal
input
G
A A
E
D
A A
Phase A
E
D
A A
Phase B
F F F
F
Counter input phase A/B
Input pulse duty: 50%
Counter input phase Z
Relationship between phase A and phase B at phase difference pulse input
Terminal
input
OFF
voltage
OFF
voltage
ON
voltage
ON
voltage
Terminal
input
OFF
voltage