KE600 Inverter Mechanical and Electric Installation
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3) Description of connection of control terminals
a) Analog input terminal
Since the weak analog voltage signal is easy to suffer external interferences, it needs to employ shielded
cable generally and the length should be no longer than 20 meters, as shown in Figure 3-10. In case the
analog signal is subject to severe interference, and filter capacitor or ferrite magnetic core should be
installed at analog signal source side, as shown in Figure 3-11
less than 20 meters
Potentiometer
PE
GND
AI1
+10V
Figure 3-10 Connection of analog input
0.022
uF,50V
C
External analog source
Cross in the same direction or wind 2
or 3 coils in the same direction
Ferrite bead
AI1
GND
Figure 3-11 Connection of analog Input
b) Digital input terminal
It needs to employ shielded cable generally, with cable length of no more than 20 meters. When active
driving is adopted, necessary filtering measures should be taken to prevent the interference to the power
supply.
It is recommended to use the contact control mode.
D1~D10 (D8~D10 on the I/O extension card) terminals connection:
NPN type
