ABB ACS880-204 - Single-Line Circuit Diagrams of the Supply Unit; Frames R1 I

Single-line circuit diagrams of the supply unit
The following figures are examples of possible IGBT supply unit configurations. The
connection is the same in both Rittal VX25 and generic enclosures. The tables give
explanations for the numbers and letters of the diagrams. They also indicate if the
components can be ordered from ABB or if the customer needs to acquire them separately.
For components, see the ordering information.
￭ Frames R1i…R4i
The following figure shows a connection example of a supply unit with a frame size R1i…R4i
module.
24 Operation principle and hardware description
Single-line circuit diagrams of the supply unit
The following figures are examples of possible IGBT supply unit configurations. The tables
give explanations for the numbers and letters of the diagrams. They also indicate if the
customer can order the components from ABB or if the customer needs to acquire them
separately. For components, see chapter Ordering information.
 Frames R1i…R4i
The following figure shows a connection example of a supply unit with a frame size
R1i…R4i module.
Cubicle No. Explanation Available through
1. AC supply network -
A IGBT supply
module cubicle
(ISU)
2a. Main switch-disconnector (OS type) with
main AC fuses (IEC)
ABB or third party
A ISU 2b. Main switch-disconnector (OT type) (UL,
CSA)
ABB or third party
A ISU 2c. Main AC fuses (UL, CSA) ABB or third party
A ISU 3. Main contactor ABB or third party
A ISU 4. LCL filter module (WFU-xx) ABB
A ISU 5. IGBT supply module (frame R1i…R4i) ABB
A ISU 6. DC fuses ABB or third party
7. DC link -
-AC supply network1.
ABB or third partyMain switch-disconnector (OS
type) with main AC fuses (IEC)
2a.IGBT supply module cubicle
(ISU)
A
ABB or third partyMain switch-disconnector (OT
type) (UL, CSA)
2b.ISUA
ABB or third partyMain AC fuses (UL, CSA)2c.ISUA
ABB or third partyMain contactor3.ISUA
ABBLCL filter module (WFU-xx)4.ISUA
ABBIGBT supply module (frame
R1i…R4i)
5.ISUA
ABB or third partyDC fuses6.ISUA
-DC link7.
22 Operation principle and hardware description