The power and control cables (except those that go from the AC power supply to the
filter) must be shielded. To minimize noise, it is recommended that they are
separated from each other at a distance greater than 200 mm.
Shielded power cables can be grounded with a copper bar using a clamp that
ensures an efficient electrical contact area with larger cross-section of the ground
wire.
Particular attention should be given to the use of appropriate cables.
The cables and the motor winding may interact with the drive output stage to create an oscillating
circuit that increases the maximum voltage of the system. The parameters that contribute to
determining this maximum voltage are: the capacity and the length of the cables, the motor
inductance, and the frequency and rising edges of the PWM modulation. An analysis of these
parameters is recommended to prevent excessive voltages for the application. For applications
assistance, contact Applications Engineering.
PN: L-MAM2-E-201
Moog Casella DM2020 Installation and Startup Guide
3.4 Cables
Cable cross-sections for power supply modules
Power supply model Type L50 (54 A) Type L150 (128 A)
Network 13 mm
2
(AWG6) 33 mm
2
(AWG2)
Brake resistor 13 mm
2
(AWG6) 33 mm
2
(AWG2)
24 V DC 0.8 mm
2
AWG 18
Earth 13 mm
2
(AWG6) 33 mm
2
(AWG2)
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