Inovance MD500 Series - Wiring of AI1; Wiring of AI2

3. Electrical Installation
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3
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Wiring of AI1
Analog signals at low levels can suffer from effects of external interference. To reduce
this effect, it is important to use shielded cables shorter than 20 m long to carry analog
signals.
Figure 3-9 Wiring for analog input 1
+10V
AI1
GND
Potentiometer
PE
< 20 m
MD500
In applications where analog signals suffer from effects of severe external interference,
install a lter capacitor or a ferrite magnetic core at source of analog signal. The pig tail of
the shield must be connected to the PE terminal on the drive.
Figure 3-10 Connect shield to the PE terminal of the drive
Grounding clamp
Grounding
bar
a a
a
b
Press it to open the
grounding clamp.
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Wiring of AI2
When you select voltage input via AI2, use the same wiring method as AI1. When you
select current input via AI2, set jumper J9 to the I side.
Figure 3-11 Wiring for analog input 2
AI2
GND
Current flow in
MD500
Ferrite magnetic core
Cross or wind two or three
turns in the same direction
I
V
J9