Technosoft IPS110, Technical Reference

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©
Technosoft 2007 18 IPS110 Technical Reference
3.2.5. Supply connection
J1
Power supply connection
+3.3V
DC
DC
GND
5V
+
+
+V
LOG
V
MOT
V
LOG +5V
GND
To motor
IPS110 v1.0
+V
MOT
M
o
ti
onC
h
ip
TM
Figure 3.6.
J1 – Supplies connection
3.2.5.1 Recommendations for Supply Wiring
1. Use short, thick wires between the IPS110 and the motor power supply. If the wires are
longer than 2 meters, use twisted wires for the supply and ground return. For wires longer
than 20 meters, add a capacitor of at least 1,000
μ F (rated at an appropriate voltage) right on
the terminals of the IPS110.
2. When the same motor power supply is used for multiple drives, do a “star” connection
centered (electrically) around the supply outputs. Connect each drive to the common motor
supply using separate wires for plus and return.
3.2.5.2 Recommendations to limit over-voltage during braking
During abrupt motion brakes or reversals the regenerative energy is injected into the motor power
supply. This may cause an increase of the motor supply voltage (depending on the power supply
characteristics). If the voltage bypasses the U
MAX
value, the drive over-voltage protection is
triggered and the drive power stage is disabled.