Afe System Using Dc Link Fed 740 Stacks: Connection Overview - Parker AC30P Hardware Installation Manual

AFE SYSTEM USING DC LINK FED 740 STACKS: CONNECTION OVERVIEW

An example of how to connect AC30 DC Link Fed drives in an AFE system configuration is shown below:
Note: VDR & Y-Cap disconnects need to be removed from ALL drives.
See 'Chapter 4: Installation - Power Stack' section for details.
AFE control sequence:
The default AFE macro in the AC30 - 'App_5_AFE Control' should be setup to perform this automated sequence:
1. Close the pre-charge contactor (C2) and charge the DC bus up to a minimum 340V level.
2. Close the main contactor (D).
3. With the main contactor (D) closed, synchronise the drive with the mains supply frequency.
4. When the inverter is enabled, the AFE will now be in operation with the DC link voltage boosted above the peak of the mains voltage.
See HA503711U003 'Appendix C: Parameter Reference' for details.
AC30 series Variable Speed Inverter
Associated Equipment - Power Stack
6-11
Key:
AC Line Fuses
EMC Filter (optional)
Pre-charge Circuit
1 Motor Starter
2 Contactor
3 Resistors
4 Motor Starter
Main Contactor
Harmonic Filter
1 AC Line Choke (3%)
2 AC Line Choke (5%)
3 Fuses
Resistor/Capacitor
4
Network
Line Synchronisation
1 Fuses
Line Sync Card
2
LA471892U001
AC30P or AC30D
(with Encoder Feedback
Option 7004-04-00)
DC Link Fuses
AC Motor Choke (optional)
Mandatory component
Optional component
System component
(not addressed in this Manual)