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7-3
Section
Counter Units
135
Characteristics
Item
Specification
Number of counters
1
Operating modes
Linear counter
Count
inputs
Input sig-
nals
Encoder input (A, B, Z)
p s
Signal lev-
els
24 VDC
Types of
inputs
Differential phase pulse inputs
Pulse and direction inputs
Counting
rate
50 kHz (kcps)
Counting
range
--8,388,608 to 8,388,607 (24 bit binary)
Others
The multiple function (
×
1,
×
4) can be selected for differ-
ential phase pulse input
External
inputs
Input sig-
nals
External input (IN)
p s
Signal lev-
els
24 VDC
External
Outputs
External outputs (OUT1, OUT 2)
outputs
Switching
capacity
0.5 A/point at 24 VDC
Note
When connecting an encoder, use an incremental encoder that has a power
supply voltage of 24 VDC and open-collector output. The following OMRON
Encoders are recommended:
E6B2-CWZ6C
E6H-CWZ6C
Input Specifications (Encoder Input: A, B, Z, External Input: IN)
Item
Specification
Encoder input (A, B, Z)
External input (IN)
ON voltage
19.2 VDC min. (between each
input terminal and V)
15 VDC min. (between each
input terminal and V)
OFF voltage
4 VDC max. (between each
input terminal and V)
5 VDC max. (between each
input terminal and V)
OFF current
1.0 mA max.
1.0 mA max.
Input current
18 mA max./point at 24 VDC
(between each input terminal
and V)
6 mA max./point at 24 VDC
(between each input terminal
and V)
ON response
time
---
1.0 ms max.
OFF response
time
---
1.0 ms max.
Insulation
resistance
20 M
Ω
min. at 250 VDC (between isolated circuits)
Isolation
method
Photocoupler