Filter
Top Products
3 - 3 3 - 3
MELSEC-Q
3 SPECIFICATIONS
(3) QD62D (differential input sinking output type) performance
specifications
Model name
Item
QD62D
Counting speed switch settings 1
500 k
(200 k to 500 kPPS)
200 k
(100 k to 200 kPPS)
100 k
(10 k to 100 kPPS)
10 k
(10 kPPS or less)
I/O occupied points 16 points (I/O assignment: Intelligent 16 points)
Number of channels 2 channels
Phase
1-phase input (1 multiple/2 multiples), 2-phase input (1 multiple/2 multiples/4 multiples),
CW/CCW input
Count input
signal
Signal level (
φ
A,
φ
B)
EIA Standard RS-422-A
Differential line driver level (AM26LS31 [manufactured by Texas Instruments] or equivalent)
Counting speed (max)
2
500 kPPS 200 kPPS 100 kPPS 10 kPPS
Counting range 32-bit signed binary values (-2147483648 to 2147483647)
Model UP/DOWN Preset counter + Ring counter function
Counter
Minimum count pulse
width (Duty ratio 50 %)
1 1
2
(Unit: s)
(Min. phase
differential for 2-phase
input: 0.5
μ s)
2.5 2.5
5
(Unit: s)
(Min. phase
differential for 2-phase
input: 1.25
μ s)
5 5
10
(Unit: s)
(Min. phase
differential for 2-phase
input: 2.5
μ s)
50 50
100
(Unit: s)
(Min. phase
differential for 2-phase
input: 25
μ s)
Comparison range 32-bit signed binary values
Coincidence
output
Comparison result
Set value < Count value
Set value = Count value
Set value > Count value
Preset External
input
Function start
5/12/24 V DC 2 to 5 mA
(EIA Standard RS-422-A Differential Line Driver may be connected)
External
output
Coincidence output
Transistor (sinking type) output: 2 points/channel
12/24 V DC 0.5 A/point 2 A/common
5 V DC internal current consumption 0.38 A
Weight 0.12 kg
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 500 k 200 k 100 k 10 k
Rise/fall time Both 1 and 2 phase input
t = 0.5 μ s or less 500 kPPS 200 kPPS 100 kPPS 10 kPPS
t = 1.25 μ s or less 200 kPPS 200 kPPS 100 kPPS 10 kPPS
t = 2.5 μ s or less
—
100 kPPS 100 kPPS 10 kPPS
t = 25 μ s or less
— —
10 kPPS 10 kPPS
t = 500 μ s
— — —
500 PPS
tt