Description Of Wiring Of Control Terminals - HNC Electric HV590 Series User Manual

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.
Go through in the same direction or
wind 2~3 rounds in the same direction
External analog source
Fig.2-6.2Analog input terminal processing wiring diagram
Section II. Installation &Wiring
Less then 20 meters
Fig. 2-6.1 Analog input terminal wiring diagram
0.022uF
C
Ferriter magnetic ring
HV590
+10V
AI1
GND
PE
HV590
AI1
GND
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