Minimizing 50/60 Hz Line Interference; I/O And Signal Wiring Requirements - Aerotech SOLOIST Hardware Manual

Soloist Hardware Manual

2.5.1 Minimizing 50/60 HZ Line Interference

If you are operating the Soloist from an off-line power source of 115 VAC or 230 VAC,
there is a potential problem of EMI (electromagnetic interference) generated from the
Soloist switching power stage propagating through the bridge rectifier and out through the
AC1 and AC2 input AC line connections. Use a line filter to minimize back-propagation
of noise into the AC lines. An example of a line filter and its proper connection to the
Soloist is shown in Figure 2-5.
Soloist
Ground
Ground
This configuration is especially important if the Soloist is operating at DC bus voltages of 100 VDC or 340 VDC
(e.g., 115 VAC to 230 VAC input power).
Figure 2-5

2.5.2 I/O and Signal Wiring Requirements

The I/O, communication, and encoder feedback connections are low power connections.
Wire and connectors used for signal wiring must be rated for at least 30 V and have a
current capacity of at least .25 Amp. Wires and connectors used for low voltage power
connections such as +5V must have a current capacity of at least 1 Amp (encoder
feedback +5V supply requires .6 Amps in some applications). In applications where there
are significant wire distances, a larger wire size is required to reduce the voltage drops
that occur along the wires. This increase is necessary to keep the voltage within tolerance
at a remote point.
When signal wiring is in close proximity to wiring operating at voltages above 60 Volts,
the insulation rating of the signal wiring must be rated for the higher voltage. Use signal
wiring with a voltage rating of at least 300 Volts when it is in proximity to AC power or
motor power wiring.
For additional information on connecting analog and digital I/O, see Chapter 3 and for
additional information about optional I/O, see Chapter 4.
www.aerotech.com
Torque to
5-7 in-lb
C
Schaffner FN2070-10-
B
06 includes common
A
mode choke and ferrite
AC2
AC1
TB102
Back-Propagation Line Filter Connection
Installation and Configuration
Use #14 AWG, 300V Copper Wire rated for
at least 80C
115/230 VAC
50/60Hz
Protective
Ground
2-9