
1-4
Installation/Wiring
PowerFlex 700S Phase II AC Drive User Manual -
Publication 20D-UM006G-EN-P – July 2008
Unbalanced, Ungrounded or Resistive Grounded Distribution Systems
If phase to ground voltage will exceed 125% of normal or the supply system
is ungrounded, refer to Wiring and Grounding Guidelines for Pulse Width
Modulated (PWM) AC Drives, publication DRIVES-IN001…, for more
information.
Input Power Conditioning
Certain events on the power system supplying a drive can cause component
damage or shortened product life. These conditions are divided into 2 basic
categories:
1. All Drives
– The power system has power factor correction capacitors switched in
and out of the system, either by the user or by the power company.
– The power source has intermittent voltage spikes in excess of 6000
volts. These spikes could be caused by other equipment on the line or
by events such as lightning strikes.
– The power source has frequent interruptions.
2. 5 HP or Less Drives (in addition to “1” above)
– The nearest supply transformer is larger than 100kVA or the available
short circuit (fault) current is greater than 100,000A.
– The impedance in front of the drive is less than 0.5%.
If any or all of these conditions exist, it is recommended that the user install
a minimum amount of impedance between the drive and the source. This
impedance could come from the supply transformer itself, the cable
between the transformer and drive or an additional transformer or reactor.
The impedance can be calculated using the information supplied in the
technical document Wiring and Grounding Guidelines for Pulse Width
Modulated (PWM) AC Drives, publication DRIVES-IN001….
!
ATTENTION: PowerFlex 700S drives contain protective MOVs
and common mode capacitors that are referenced to ground.
These devices must be disconnected if the drive is installed on a
resistive grounded distribution system or an ungrounded
distribution system. See page
for jumper locations.
Содержание PowerFlex 700S
Страница 1: ...USER MANUAL Firmware Versions 1 xxx 4 002 PowerFlex 700S High Performance AC Drive Phase II Control ...
Страница 58: ...2 8 Start Up PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 Notes ...
Страница 147: ...Programming and Parameters 3 89 PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 ...
Страница 278: ...D 8 HIM Overview PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 Notes ...
Страница 316: ...Index 6 PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 ...
Страница 317: ......