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*1 The value can be configured in intelligent function module switch setting.
*2 The counting speed is affected by the pulse rise/fall time.
The number of pulses that can be counted depending on the counting speed is as follows. Note that the count may be
incorrect when pulses with long rise/fall time are counted.
(2) LD62D (differential input sink output type)
Counting speed switch
setting
200k 100k 10k
Rise/fall time Both 1- and 2-phase inputs
t = 1.25s or less 200kPPS 100kPPS 10kPPS
t = 2.5s or less 100kPPS 100kPPS 10kPPS
t = 25s or less 10kPPS 10kPPS
t = 500s 500PPS
Item Specifications
Counting speed switch setting
*1
500k (200k to
500kPPS)
200k (100k to
200kPPS)
100k (10k to
100kPPS)
10k (10kPPS or less)
Number of occupied I/O points 16 points (I/O assignment: Intelligent, 16 points)
Number of channels 2 channels
Count input signal
Phase
1-phase input (1 multiple/2 multiples), 2-phase input (1 multiple/2 multiples/4 multiples),
CW/CCW input
Signal level
(A, B)
EIA Standard RS-422-A
Differential line driver level
(AM26LS31 (manufactured by Texas Instruments Incorporated) or equivalent)
Counter
Counting speed
(maximum)
*2
500kPPS 200kPPS 100kPPS 10kPPS
Counting range 32-bit signed binary (-2147483648 to 2147483647)
Type UP/DOWN preset counter + Ring counter functions
Minimum count pulse
width
(duty ratio 50%)
(Minimum phase
difference in 2-phase
input 0.5s)
(Minimum phase
difference in 2-phase
input 1.25s)
(Minimum phase
difference in 2-phase
input 2.5s)
(Minimum phase
difference in 2-phase
input 25s)
Coincidence
output
Comparison range 32-bit signed binary
Comparison result
Setting value < Count value
Setting value = Count value
Setting value > Count value
External input
Preset
5/12/24VDC 2 to 5mA
(EIA Standard RS-422-A differential line driver can be connected.)
Function start
External output Coincidence output
Transistor (sink type) output, 2 points/channel
12/24VDC 0.5A/point, 2A/common
Internal current consumption (5VDC) 0.36A
Weight 0.13kg
tt
11
2
(Unit : s)
2.5 2.5
5
(Unit : s)
55
10
(Unit : s)
50 50
100
(Unit : s)