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Specification of high-performance vector convertor
Potentiometer
External analog source
b) Digital input terminal: wiring method of DI terminal
Shield cable is commonly used and wiring distance is as short as possible, which should not exceed
20m. If using active way to drive, necessary smoothing measures should be adopted for crosstalk of power.
It's suggested to use contactor control way.
Leak-type wiring way
Less than 20 meters
Figure 3-7 Wiring diagram of analog input terminal
same direction
C
0.022uF 、 50V
Figure 3-8 Treatment wiring diagram of analog input terminal
+VCC
+24V
OP
Signal
DI1
NPN
3.3Ω
DI5
0V
COM
External controller
Figure 3-9 Leak-type wiring way
+10V
AI1
GND
PE
cross or wind
2~3 turns in
AI1
GND
Ferrite core
+24V
3.3k
3.3k
Control panel of frequency convertor
- 32 -
Mechanical and electrical installation
VFD
VFD
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