Mitsubishi MELSEC Q Series User Manual page 22

3 SPECIFICATIONS
Item
Counting speed switch settings
I/O occupied points
Number of channels
Phase
Count input
signal
Signal level (
Counting speed (max)
2
Counting range
Model
Counter
Minimum count pulse
width (Duty ratio 50 %)
Comparison range
Coincidence
output
Comparison result
External Preset
input
Function start
External
Coincidence output
output
5 V DC internal current consumption
Weight
1: The counting speed switch settings 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
3 - 3
(3) QD62D (differential input sinking output type) performance
specifications
Model name
500 k
1
(200 k to 500 kPPS)
φ φ
A, B)
Differential line driver level (Am26LS31 [manufactured by Texas Instruments] or equivalent)
500 kPPS
2
1 1
(Unit: s)
(Min. phase
differential for 2-phase
input: 0.5 μ s)
500 k 200 k
Both 1 and 2 phase input
500 kPPS 200 kPPS
200 kPPS 200 kPPS
—
100 kPPS
—
—
200 k
(100 k to 200 kPPS)
16 points (I/O assignment: Intelligent 16 points)
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
(Unit: s)
(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
(EIA Standard RS-422-A Differential Line Driver may be connected)
Transistor (sinking type) output: 2 points/channel
12/24 V DC 0.5 A/point 2 A/common
100 k
100 kPPS 10 kPPS
100 kPPS 10 kPPS
100 kPPS 10 kPPS
—
10 kPPS 10 kPPS
— —
500 PPS
QD62D
100 k
(10 k to 100 kPPS)
2 channels
100 kPPS
10
5 5
(Unit: s)
(Min. phase
differential for 2-phase
input: 2.5 μ s)
0.38 A
0.12 kg
10 k
t
MELSEC-Q
10 k
(10 kPPS or less)
10 kPPS
100
50 50
(Unit: s)
(Min. phase
differential for 2-phase
input: 25 μ s)
t
3 - 3