29
2KΩ
100Ω
100Ω
1
33
34
100Ω
100Ω
31
32
16
PULSE+
SIGN
-
COM
+24V
PULHIP
PULHIS
+24V
25
SIGN+
PULSE
-
2KΩ
100Ω
100Ω
1
33
34
100Ω
100Ω
31
32
16
PULSE
-
SIGN
-
+24V
PULHIP
PULHIS
25
+24V
PULSE+
SIGN+
Servo drive
Servo drive
PE
PE
NPN
PNP
Open collector pulse position
instruction. The maximum input
frequency is 200kpps. The
minimum pulse width is 2.5us
COM
external
external
2KΩ
2KΩ
Figure 4-15 (a) open collector pulse input command wiring diagram (using external power supply and internal limiting resistor)
2KΩ
100Ω
100Ω
1
33
34
100Ω
100Ω
31
32
16
PULSE+
SIGN
-
COM
+24V
PULHIP
PULHIS
25
SIGN+
PULSE
-
2KΩ
100Ω
100Ω
1
33
34
100Ω
100Ω
31
32
16
PULSE
-
SIGN
-
+24V
PULHIP
PULHIS
25
PULSE+
SIGN+
Servo drive
Servo drive
PE
PE
NPN
Open collector pulse position
instruction. The maximum input
frequency is 200kpps. The
minimum pulse width is 2.5us
COM
VCC
R1
R1
VCC
R1
R1
PNP
2KΩ
2KΩ
Figure 4-15 (b) open collector pulse input command wiring diagram (using external power supply and external limiting resistor)
Selection of limit resistor R1is as followed
:
The selection of resistor R1 is satisfied
:
1.5
10
1 200
CC
V
mA
R
Recommended resistance for R1
:
VCC voltage
R1 resistance
R1 power
24V
2.0K
0.5W
12V
0.8K
0.5W
Remark
:
1)
Make sure a pair of differential signals is connected with a twisted two cables
2)
Encoder cable routing must be separated from the power cable routing by at least 30cm or more.
3)
The pulse input interface is not shielded input interface. In order to reduce noise, we recommend the ground output signal of the upper
computer the ground output signal of the servo drive should be connected together.
Examples of typical wrong wiring
2KΩ
100Ω
100Ω
1
33
34
100Ω
100Ω
31
32
16
PULSE+
SIGN
-
COM
+24V
PULHIP
PULHIS
25
SIGN+
PULSE
-
Servo drive
PE
VCC
Missed limiting
resistor
2KΩ
100Ω
100Ω
1
33
34
100Ω
100Ω
31
32
16
PULSE+
SIGN
-
COM
+24V
PULHIP
PULHIS
25
SIGN+
PULSE
-
Servo drive
PE
VCC
Not using separate
current limiting resistor
Error 1: Missed limiting resistor,
the port will damage
Error 2: shared limiting resistor
for Multiple port, resulting in
pulse reception error
2KΩ
2KΩ