Technosoft 2018
24
iMOT Intelligent Motors Line Technical Reference
3.8.5
Analog Inputs Connection Recommendations
3.8.5.1
0-5V Input Range
The connection diagrams show the 0-5V analogue connection recommendation.
Remarks:
1. Default input range for analog inputs is 0÷5 V for REF and FBDK. For a +/-10 V range, see Figure 3.7.
2. The length of the cables must be up to 30m, reducing the exposure to voltage surges in industrial environment.
3.8.5.2
+/- 10V to 0-5V Input Range Adapter
Figure 3.6.
+/-10V to 0-5V adapter
Remark:
The length of the cables must be up to 30m, reducing the exposure to voltage surges in industrial environment.
3.8.5.3
Recommendation for wiring
a) If the analogue signal source is single-ended, use a 2-wire twisted shielded cable as follows: 1
st
wire connects
the live signal to the drive input; 2
nd
wire connects the source ground to the drive ground; shield will be
connected to PE (protection earth, iMOT chassis), preferably at both ends.
b) If the analogue signal source is differential and the signal source ground is isolated from the drive GND, use a
2-wire twisted shielded cable as follows: 1
st
wire connects the source plus (positive, in-phase) to the drive
analogue input; 2
nd
wire connects the source minus (negative, out-of-phase) to the drive ground. Shield is
connected to PE (protection earth, iMOT chassis), preferably at both ends.
c) If the analogue signal source is differential and the signal source ground is common with the drive GND, use
a 2-wire shielded cable as follows: 1
st
wire connects the source plus (positive, in-phase) to the drive analogue
input; 2
nd
wire connects the source ground to the drive ground; shield is connected to PE (protection earth,
iMOT chassis), preferably at both ends. The source minus (negative, out-of-phase) output remains
unconnected.
