Technical information

20
230V FX Series Positioning Drive Reference Manual
Figure 12: Typical Three-Phase Connection (FX-6200 through FX-8400)
An uninterruptable power supply of 220VAC at 1 Amp is adequate for power to the Auxiliary
Input on the FX-6200 through FX-8400.
Power Considerations
The most significant AC power problem occurs when the secondary of the AC distribution
transformer is not electrically referenced to earth ground (i.e., left floating). In this case, the
voltages that develop between the AC power lines and earth ground can continuously exceed
the rated voltage of 264VAC. If this happens, the protection circuit in the FX amplifier will
try to suppress this excess voltage. If the condition is prolonged the FX amplifier protection
circuits will fail.
The FX amplifiers were designed to protect against load switching transients, lightning
strikes and various system faults that can cause short duration voltage surges. The protection
devices were chosen to meet the requirements of the International Electrotechnical
Commission specification, IEC-801, Part 5 and the American National Standards Institute/
Institute of Electrical and Electronics Engineers specification, ANSI/IEEE C62.41 surge
testing standards. These standards specify applying line-line and line-ground voltage surges.
Failure to follow safe installation guidelines can cause death or serious injury. Limit the
continuous input AC voltages between the input AC lines with respect to each other and
with respect to earth ground to 264VAC or less.
You can limit continuous voltage between lines by providing a connection between the
secondary of the AC power transformer and earth ground.
Installation of FX amplifiers in Canada and the USA that comply with local electrical codes
should not have problems.
THREE PHASE
196-264 VAC
50/60 Hz
GND
L1
L2
L3
L1
L2
L1
L2
L1
L3
L2
AC POWER
INPUT
AUX AC
POWER
INPUT
FX DRIVE
SINGLE PHASE
196-264 VAC