Aerotech Automation1 iXR3, Hardware Manual

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2.1.2. Minimizing Noise for EMC/CE Compliance
IMPORTANT : The iXR3/XR3 is a component designed to be integrated with other
electronics. EMC testing must be conducted on the final product configuration.
To reduce electrical noise, observe the following motor feedback and input power wiring techniques.
1. Use shielded cable for motor and feedback connectors. Connect the shield to the backshell at
each end of the cable.
2. Separate motor and power wiring from encoder and I/O wiring.
3. Use the lowest motor voltage required by the application to reduce radiated emission.
The following additional changes could be required for EMC compliance and are recommended
during initial EMC system evaluation.
1. Add a clamp-on ferrite to the feedback cable close to the drive.
[Aerotech PN ECZ02348, Fair-rite PN 0446167281]
2.1.3. I/O and Signal Requirements
The I/O, communication, and encoder feedback connections are typically very low power
connections. In some applications, especially when there are significant wire distances, a larger wire
size may be required to reduce the voltage drop that occurs along the wire. This increase may be
necessary in order to keep the voltage within a specified range at a remote point.
Low voltage and high voltage wires should be kept physically separated so that they cannot contact
one another. This reduces the risk of electric shock and improves system performance.
Table 2-2: I/O and Signal Specifications
Connection Specification Value
Signal Wiring
Cable/Wire Rating
(1)
300 V
Minimum Current Capacity .25 A
Temperature Rating (Insulation) (2) 80°C
Low Voltage Power
Cable/Wire Rating
(1)
300 V
Minimum Current Capacity
(3)
1 A
Temperature Rating (Insulation)
(2)
80°C
1. ≥ 30 V if the wiring is not in close proximity to wiring operating at voltages above 60 V.
2. Insulation rating will need to be rated for the higher voltage if the wiring is in proximity to wiring operating at voltages
above 60 V.
3. Larger gauge wire may be required to minimize voltage drop due to voltage (IR) loss in the cable.
2.1.2. Minimizing Noise for EMC/CE Compliance iXR3/XR3 Hardware Manual
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