SD500 Spindle Servo Drive Manual
17
◆
17 AI1
1 GND
16 AI2
Controller
Servo drive
FG
Please connect the
shielded cable as
required
twisted pair
18 GND
about
66k
Ω
about
20k
Ω
Figure 2-9
◆
Digital input terminal wiring:
The digital input terminals X1 to X7 support either drain or source wiring. The following is an example of X1, and interface circuit for X1
to X7 are all the same. The following is an example of wiring through a relay or transistor circuit (drain or source wiring). When using a relay
connection, select a relay for microcurrent. If there is no such a relay for microcurrent, it may cause poor contact.
a) Drain-type wiring
11 X1
External
power
24VDC
SD500 control
terminal CN1
27 SC
•
•
4.7K
Ω
Drain-type wiring method
12
42
+24V
COM
NPN
Figure 2-9
b) Source-type wiring
11 X1
External power
24VDC
SD500 control
terminal CN1
27 SC
•
•
4.7K
Ω
Source-type wiring
method
12
42
+24V
COM
PNP
Figure 2-10