Mitsubishi Electric QD62 User Manual page 19

3 SPECIFICATIONS
Model name
Item
Counting speed switch settings
I/O occupied points
Number of channels
Phase
Count input
Signal level ( φ A, φ B)
signal
Counting speed (max)
Counting range
Model
Counter
Minimum count pulse
width (µ s)
(Duty ratio 50 %)
Comparison range
Coincidence
output Comparison result
Preset
External
input
Function start
External
Coincidence output
output
5 V DC internal current consumption (A)
Weight (kg)
1: The counting speed switching can be set using the intelligent function module switch.
2: Counting speed is affected by pulse rise and fall time. Possible counting speeds are shown in the following
table. Note that if a pulse that has a large rise and/or fall time is counted, a miscount may occur.
Counting speed switch settings
Rise/fall time
t = 0.5 µ s or less
t = 1.25 µ s or less
t = 2.5 µ s or less
t = 25 µ s or less
t = 500 µ s
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(3) QD62D (differential input sinking output type) performance
specifications
500 k
1
(200 k to 500 kPPS)
Differential line driver level (Am26LS31 [manufactured by Texas Instruments] or equivalent)
2 500 kPPS
2
1 1
(Min. phase differential for
2-phase input: 0.5 µ s)
(EIA Standard RS-422-A Differential Line Driver may be connected)
500 k 200 k
Both 1 and 2 phase input
500 kPPS 200 kPPS
200 kPPS 200 kPPS
—
100 kPPS
— —
— —
QD62D
200 k
(100 k to 200 kPPS)
16 points (I/O assignment: Intelligent 16 points)
2 channels
1-phase input, 2-phase input
EIA Standard RS-422-A
200 kPPS
32-bit signed binary values (–2147483648 to 2147483647)
UP/DOWN Preset counter + Ring counter function
5
2.5 2.5
(Min. phase differential for
2-phase input: 1.25 µ s)
32-bit signed binary values
Set value < Count value
Set value = Count value
Set value > Count value
5/12/24 V DC 2 to 5 mA
Transistor (sinking type) output 2 points/channel
12/24 V DC 0.5 A/1 point 2 A/1 common
0.38
0.12
100 k 10 k
100 kPPS 10 kPPS
100 kPPS 10 kPPS
100 kPPS 10 kPPS
10 kPPS 10 kPPS
—
500 PPS
MELSEC-Q
100 k
(10 k to 100 kPPS) (10 kPPS or less)
100 kPPS
10
5 5
(Min. phase differential for (Min. phase differential for
2-phase input: 2.5 µ s) 2-phase input: 25 µ s)
t t
10 k
10 kPPS
100
50 50
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