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Geo Brick Drive User Manual
Pinouts and Software Setup
157
Motor Cable
Cable shield
Cable shield
Motor Side
Geo Brick Side
The motor cable should have a
separate conductor (drain wire) tying the motor frame to the
Geo Brick drive
.
Keep the motor cable as short as possible
to maintain lower capacitance (desirable). A
capacitance of up to 50 PicoFarads per foot (0.3048 m), and runs of up to 200 feet (60 m) are
acceptable with 240VAC. Exceeding these lengths requires the installation of a Snubber at the
motor end or an in-series inductor at the Geo Brick Drive end.
If the grounding/shielding techniques are insufficient, you may
install chokes in the motor
phases at the Geo Brick Drive end
such as wrapping individual motor leads several times
through a ferrite core ring. DigiKey, Micro-Metals (T400-26D), Fair Rite (2643540002), or
equivalent ferrite cores are recommended. This adds high-frequency impedance to the outgoing
motor cable thereby making it harder for high-frequency noise to leave the control area.
U
V
W
GND
Tie cable shield to
shield stud or chassis ground
Motor Cable
Note
Ferrite cores are also commonly used with lower inductance motors to
enhance compatibility with the Geo Brick Drive, which is specified to
a minimum of 2 mH.
Do not use a motor wire gauge less than 14 AWG for 5/10A or 8/16A axes, and 10 AWG for
15/30A axes
unless otherwise specified by the motor manufacturer. Refer to Motor manufacturer
and local code recommendations.
Avoid running sensitive signal cables (i.e. encoders, small signal transducers) in the same cable
bundle as the motor cable(s).
Install dv/dt filter, Trans-coil V1K series (Optional).
Содержание Geo Brick
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Страница 286: ...Geo Brick Drive User Manual Appendix A 286 APPENDIX A Schematic Samples Watchdog X15 Inputs J6 J7...
Страница 287: ...Geo Brick Drive User Manual Appendix A 287 Outputs J6 J7 603793 109 and earlier Outputs J6 J7 603793 10A and later...
Страница 288: ...Geo Brick Drive User Manual Appendix A 288 Limits Flags J4...