Inovance MD290 Series, Advanced User'S Manual

Page: 73 / 350

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 3-18 Wiring for analog input 1
+10V
AI1
GND
Potentiometer
PE
< 20 m
MD290
In applications where analog signals suffer from effects of severe external interference,
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the shield must be connected to the PE terminal on the drive.
Figure 3-19 Connect shield to the PE terminal of the drive
Grounding clamp
Grounding
bar
a a
a
b
Press it to open the
grounding clamp.
Ƶ
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 3-20 Wiring for analog input 2
AI2
GND
Current flow in
MD290
Ferrite magnetic core
Cross or wind two or three turns in
the same direction
I V
J9