Installation CDHD
20 Servotronix
Motor Line Filtering
Motor filtering may not be necessary for CE compliance of CDHD systems.
However, this additional filtering increases the reliability of the system. Poor
non-metallic enclosure surfaces and lengthy, unbonded (or unshielded) motor
cables that couple noise line-to-line (differential) are just some of the factors
that lead to the necessity of motor lead filtering.
Motor lead noise may be either common-mode or differential. The common-
mode conducted currents occur between each motor lead and ground (line-to-
ground). Differential radiated currents exist from one motor lead to another
(line-to-line). The filtering of the lines feeding the motor provides additional
attenuation of noise currents that enter surrounding cables and equipment I/O
ports in close proximity.
3.3 Mechanical Installation
3.3.1 Mount the CDHD
Using the bracket on the back of the CDHD, mount the CDHD on a grounded
conductive metal panel.
For mounting dimensions, refer to Figure 2-1.
3.4 Electrical Installation
3.4.1 Connect Motor (P2)
Using the supplied mating connector, connect the motor interface.
Figure 3-2. Motor Interface
Table 3-2. Motor Interface
Pin Pin Label Function
1 PE Protective ground (motor housing)
2 U Motor Phase U
3 V Motor Phase V
4 W Motor Phase W
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