Mitsubishi MELSEC-Q Series User Manual page 51

3
SPECIFICATIONS AND FUNCTIONS
Signal name
5VDC
24VDC
Phase A pulse input
(CH A_5V/CH A_24V)
Phase B pulse input
(CH B_5V/CH B_24V)
(b) Input specifications for the counter function
Rated input Operating
voltage/ voltage
current range
5VDC/18mA 4.5 to 5.5V
24VDC/2 to
21.6 to 26.4V
6mA
•Input pulse can be selected from 1 multiple of 2 phases, 2 multiples of 2 phases, 4 multiples
of 2 phases, and CW/CCW.
Set it in pulse input mode of "Intelligent function module switch setting" (refer to Section 5.6).
Pulse input
For addition count
mode
CW/CCW
1 multiples of
2 phases
2 multiples of
2 phases
4 multiples of
2 phases
•The minimum count pulse width is as follows.
10 s
5 s 5 s
Duty ratio 50%
(Minimum phase difference for 2-phase input: 2.5 s)
•The rise/fall time is as follows.
t t
•Input pulse can be selected from 1 multiple of 2 phases, 2 multiples of 2 phases, 4 multiples
of 2 phases, and CW/CCW.
Set it in pulse input mode of "Intelligent function module switch setting" (refer to Section 5.6).
3.5 Specifications of I/O Interfaces with External Device
ON voltage/ OFF voltage/
current current
1.0VDC or
2.7VDC or more/
less/0.5mA or
5.5mA or more
less
21.6VDC or more/ 5VDC or less/
2mA or more 0.1mA or less
A
B
A
B
A
B
A
B
Rise/fall time
Both 1 and 2-phase input
t = 1.25 or less
t = 2.5 or less
t = 25 or less
t = 500
3.5.1 Electrical specifications of I/O signals
Input Response
resistance time
Approx.
1 s or less
390
Approx.
3900
1 s or less
+390
For subtraction count
A
B
A
B
A
B
A
B
100k
100kPPS
100kPPS
10kPPS
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