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MELSEC-
3 SPECIFICATIONS AND FUNCTIONS
Output specifications
Signal name
Rated load
voltage
Working load
voltage range
Max. load
current/rush
current
Max. voltage
drop at ON
Leakage
current at OFF
Response time
•
Differential driver/open collector equivalent to Am26LS31
•
Select the CW/CCW type, PULSE/SIGN type and A phase/B phase type using the parameter
(
Pr.5
Pulse output mode) according to the drive unit specifications.
•
The relation of the pulse output with the "
Pr.5
Pulse output mode" and "
Pr.24
Logic
selection for pulse output to drive unit " is as shown below.
Pr.24
Logic selection for pulse output to drive unit
Positive logic Negative logic
Pr.5
Pulse output
mode
Forward run Reverse run Forward run Reverse run
CW
CCW
PULSE
SIGN
High
Low
Low
High
A
B
When using the open collector, the rising edge/falling edge time and duty ratio will be as shown
below. *
tr
OFF
tf
ON
Pulse output
(CW/PULSE/A phase)
Pulse sign
(CCW/SIGN/B phase)
5 to 24VDC 4.75 to 30VDC
50mA/point/
200mA 10ms
or less
0.5VDC (TYP) 0.1mA or less –
Deviation counter
clear (CLEAR)
5 to 24VDC 4.25 to 30VDC
0.1A/point/
0.4A 10ms or
less
1VDC (TYP)
2.5VDC (MAX)
0.1mA or less
2ms or less
(resistance
load)
* Pulse rising edge/falling edge time in AD75 (unit tr, tf:
μ
s Duty: %) ... When ambient temperature is room temperature
Load voltage (V) 26.4 4.75
Cable length (m) 1 3 1 3
Load
current
(mA)
Pulse
speed
(kpps)
tr
(rising
edge)
tf
(falling
edge)
Duty
tr
(rising
edge)
tf
(falling
edge)
Duty
tr
(rising
edge)
tf
(falling
edge)
Duty
tr
(rising
edge)
tf
(falling
edge)
Duty
200 1.70 0.04 30
2.04 0.06
27 0.63
0.04
43 1.08
0.04
38
100 3.00 0.08 33
3.49 0.07
29 0.64
0.06
47 1.28
0.04
42
2
10 3.20 0.07 48
6.80 0.08
46 0.64
0.04
49 1.30
0.06
49
200 1.10 0.06 39
1.83 0.07
33 0.26
0.04
48 0.92
0.04
46
100 1.24 0.07 43
2.50 0.08
36 0.26
0.05
48 0.44
0.06
47
5
10 1.20 0.07 49
2.70 0.08
49 0.30
0.05
50 0.44
0.06
50
200 0.42 0.07 46
0.72 0.08
43 0.22
0.06
47 0.22
0.06
49
100 0.40 0.07 48
0.74 0.11
47 0.24
0.08
50 0.24
0.06
50
20
10 0.40 0.07 50
0.79 0.08
50 0.24
0.06
50 0.24
0.06
50
200 0.28 0.08 48
0.37 0.09
47 0.20
0.08
47 0.18
0.10
50
100 0.27 0.08 48
0.37 0.13
48 0.22
0.08
49 0.20
0.12
51
50
10 0.27 0.09 50
0.37 0.09
50 0.22
0.08
50 0.20
0.12
50
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