HNC Electric HV590 Series, Руководство пользователя

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Section II. Installation &Wiring
21
2.6.3 Description of wiring of control terminals
1
）
Analoginput terminal
Because the weak analog signal will be easily affected by the external interference,
generally shielded cable shall be used, the cable length shall be as short as possible and no
longer than 20 meters, as shown in Fig. 2-6.1. In case the analog signal is subject to severe
interference, analog signal source side shall be installed with filter capacitor or ferrite magnetic
ring, as shown in Fig.2-6.2.
Fig. 2-6.1 Analog input terminal wiring diagram
Fig.2-6.2Analog input terminal processing wiring diagram
Less then 20 meters
+10V
AI1
GND
PE
HV590
AI1
GND
HV590
Ferriter magnetic ring
0.022uF
C
Go through in the same direction or
wind 2~3 rounds in the same direction
External analog source