© Technosoft 2011 24
IDMx40 Technical Reference
Connected
to case
V
LOG
+3.3V
J2
DC
DC
GND
IDMx40-xxI
J2 - Motor & Supply Connector
Earth
DSP Controller
GND
+V
LO G
12...48V
--------------- -----
12...80V
IDM640-8EI
IDM240-5EI
+
12...48V
+
+V
MOT
5
6
8
7
V
MOT
Q5
Q6
Q3
Q2
Q1
Q4
4-phase Inverter
Q8
Q7
V
MOT
To m ot or
- Supplies Connection -
Figure 3.7. J2 – Supplies connection
Remark: The EARTH signal is connected internally to the metal case and to all SHIELD signals.
It is completely insulated from all electric signals of IDMx40. This feature may facilitate avoiding
ground loops. It is recommended that Earth be connected to GND at only one point, preferably
close to the V
MOT
supply output.
IDMx40