NI 9502 Operating Instructions and Specifications
|
© National Instruments
|
19
mode, the system consumes minimal power and may dissipate less
heat than it does in normal mode. Refer to the
Specifications
section for more information about power consumption and
thermal dissipation.
Cable Re
q
uirements for EMC Compliance
Select and install cables for the NI 9502 in accordance with the
following requirements:
•
Use only shielded cables to connect the NI 9502 to a motor and
a power supply.
•
Terminate the motor and power supply cable shields to the
COM terminal of the NI 9502. In addition, terminate the cable
shields at the other end to either earth ground or the chassis of
the connected motor and/or power supply.
•
Install snap-on, ferrite beads to the cables as follows:
–
Install a snap-on ferrite bead from Table 2 on each phase
wire of the motor cable within one (1) centimeter of the
NI 9502 (marked as Ferrite 1 in Figures and ). All other
wires, including the cable shields, should bypass these
ferrites as shown in Figures and . Select the ferrite with the
smallest aperture that will fit the actual wires used.
