7
Specifications
Section 2-1
2-1-3
I/O Electrical Specifications
Input Characteristics
Item
Counter inputs A, B, and Z
External
control inputs
IN1 and IN2
Input voltage 12 VDC
±
10%
24 VDC
±
10%
RS-422 line driver
12 to 24 VDC
±
10%
Input current
14 mA (typical) at each voltage (12.9 to
17.1 mA)
Conform to RS-422 line driver
(Am26LS31) specifications.
4 to 11 mA
ON voltage
(min.)
5.6 VDC
15.2 VDC
10.2 VDC
OFF voltage
(max.)
2.4 VDC
4.8 VDC
3.0 VDC
ON/OFF
response
time (max.)
---
---
0.1 ms
Minimum
response
pulse
Counter Inputs A and B
Waveform
Input rising time/calling time: 3
µ
s max. at
50 kHz with pulses with a duty factor of
50%
10
µ
s
min.
3
µ
s max.
3
µ
s max.
Relationship between A and B phases with
offset phase input
20
µ
s min.
Phase B
T1, T2, T3, and T4: 4.5
µ
s min.
The switching time between A and B
phases must be 4.5
µ
s min.
Counter Input Z
A pulse width of 100
µ
s min. is required.
100
µ
s
min.
100
µ
s
min.
20
µ
s min.
min.
10
µ
s
Phase A
Counter Inputs A and B
Waveform
At 75 kHz with pulses with a duty
factor of 50%
13.3
µ
s min.
6.7
µ
s
min.
6.7
µ
s
min.
0 V
Relationship between A and B
phases with offset phase input
Phase A
Phase B 0 V
0 V
T1 and T2: 3.2
µ
s min.
The switching time between A and B
phases must be 3.2
µ
s min.
Counter Input Z
A pulse width of 100
µ
s min. is
required.
100
µ
s min.
100
µ
s min.
0 V
When
accessing
these signals
from the PC,
the signals
must be ON
longer than the
PC's cycle time.
0.1 ms min.
0.1 ms min.
Summary of Contents for C200H-CT021
Page 1: ...C200H CT021 High speed Counter Unit Operation Manual Revised December 2000 ...
Page 2: ...iv ...
Page 4: ...vi ...