Delta ASDA-B3 Series User Manual page 315

Parameters
Logic
type
8
Z = 0
Note: pin definition of the communication type models is different from that of the L model. Communication type model
pins: SIGN (23), /SIGN (24), PULSE (25), and /PULSE (26).
Differential
signa
Pulse
High speed
pulse
Low speed
pulse Note
Note:
When the low speed pulse is used (U = 2), parameter Y has to be 0 (no filter function).
1.
It is suggested that you use the low speed pulse function when there is high frequency interference.
2.
Contact Delta for the production week of the servo drives that support the low speed pulse function.
3.
 UY: filter width setting
If the pulse frequency is too high, causing a pulse width smaller than the filter width, then this pulse
gets filtered out as noise. Therefore, set the filter width smaller than the actual pulse width. You should
set the filter width as 4 times smaller than the actual pulse width.
8-30
Pulse
type
Forward
Sign = low
X = 2
Maximum input
Pulse type
(single-phase)
Pulse train + sign
Forward and reverse
pulse trains
AB phase pulse train
Open-collector
Parameter
settings
Refer to the
Differential
U & Y
signal
settings in
the following
table
U = 2 and
Y = 0
Y
Unit: μs (kHz)
0 No filter function
1
2
3
4
5
6
7
Pulse input
(43)
PULSE
(41)
(39)
SIGN
(37)
frequency
T1
4 Mpps 62.5 ns 125 ns
2 Mpps 125 ns 250 ns
200 Kpps 1.25 μs 2.5 μs
Type
Pulse train + sign
Forward and reverse
pulse trains
AB phase pulse train
Open-collector
Differential signal
Open-collector
U = 0
2 (250)
3 (166)
4 (125)
5 (100)
6 (83)
7 (71)
8 (62)
Reverse
Sign = high
T4 T5 T6 T5 T6
Minimum allowed time width
T2 T3 T4
250 ns 200 ns 125 ns
250 ns 200 ns 250 ns
5 μs 5 μs 2.5 μs
Maximum
input
Voltage
frequency
(single-phase)
4 Mpps
5V
2 Mpps
200 Kpps 24V (Max.)
200 Kpps 5V
200 Kpps 24V (Max.)
U = 1
Unit: μs (kHz)
No filter function
0.2 (2500)
0.3 (1666)
0.4 (1250)
0.5 (1000)
0.6 (833)
0.7 (714)
0.8 (625)
ASDA-B3
TH
T5 T4
T5 T6
125 ns
250 ns
2.5 μs
Forward
current
< 25 mA
< 25 mA
< 25 mA
< 25 mA