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Rockwell Automation Publication 20Y-UM001F-EN-P - April 2017
Chapter 1
AFE in IP20 2500 MCC Style Enclosure – Installation/Wiring
AC Supply Source
Considerations
The AFE Frame 10 or Frame 13 in an IP20 2500 MCC Style enclosure is
suitable for use on a circuit capable of delivering these ratings:
• 100,000 rms symmetrical amperes at 400/480V
• 65,000 rms symmetrical amperes at 600/690V
The AFE must not be used on undersized or high-impedance supply systems.
The supply system kVA must be equal to or greater than the drive-related kW,
and the system impedance must be less than 10%. Operation outside these
limits can cause instability that results in the shutdown of the AFE.
System Impedance = (PowerFlex 700AFE kVA ÷ Transformer kVA) x Transformer % Impedance
You must consider the kVA of all PowerFlex AFEs on the distribution system
and the system impedance of upstream transformers.
If a residual current detector (RCD) is used as a system ground fault monitor,
use only Type B (adjustable) devices to avoid nuisance tripping.
Unbalanced, Ungrounded, or Resistive Grounded Distribution
Systems
If phase-to-ground voltage exceeds 125% of normal, or the supply system is
ungrounded, see Wiring and Grounding Guidelines for Pulse Width
Modulated (PWM) AC Drives, publication
, for more
information.
ATTENTION:
To guard against personal injury and equipment damage that is
caused by improper fusing or circuit breaker selection, use only the
recommended line fuses or circuit breakers that are specified in
.
ATTENTION:
The PowerFlex Active Front End is not designed to be used on IT
(insulated tera) or corner-grounded power networks above 600V (phase-to-
phase voltage). Operation on such a network can cause a hazardous failure of
the insulation system of the AFE.
ATTENTION:
The LCL filter of the PowerFlex Active Front End contains
common mode capacitors that are referenced to ground. These devices
must
be disconnected
if the AFE is installed on a resistive grounded distribution
system or an ungrounded distribution system. See
or
for jumper locations.
Содержание Allen-Bradley PowerFlex 700AFE
Страница 8: ...8 Rockwell Automation Publication 20Y UM001F EN P April 2017 Table of Contents Notes ...
Страница 124: ...124 Rockwell Automation Publication 20Y UM001F EN P April 2017 Chapter 4 Programming and Parameters Notes ...
Страница 136: ...136 Rockwell Automation Publication 20Y UM001F EN P April 2017 Chapter 5 Troubleshooting Notes ...
Страница 158: ...158 Rockwell Automation Publication 20Y UM001F EN P April 2017 Appendix A Supplemental Information Notes ...
Страница 164: ...164 Rockwell Automation Publication 20Y UM001F EN P April 2017 Appendix B HIM Overview Notes ...
Страница 180: ...180 Rockwell Automation Publication 20Y UM001F EN P April 2017 Index by number 120 linear list 120 viewing 163 ...
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