Phase Converter Unit (Pcu); Table 2 Pcu Rectifier Types - ABB ACS5000 User Manual

3.3. Phase converter unit (PCU)

PCUs are available as 6-pulse and 12-pulse rectifiers (Table 2). All drive configurations (FS 1, FS 2,
FS 3, and FS 4, Fig. 8) have three primary PCUs, where each PCU supplies a different motor
phase.
A complete functional PCU assembly is:
– One primary PCU in FS 1 and FS 2 drives
– One primary and one secondary PCU (connected via DC link) in FS 3 and FS 4 drive

TABLE 2 PCU rectifier types

Converter Frame size
1
rectifier type
2
18-pulse
3
36-pulse
3
36-pulse
1
The rectifier type is determined by the number of input phases, which is on the rating plate on the door of
the drive.
2
An 18-pulse rectifier has 3 × 3 input phases.
3
A 36-pulse rectifier has 6 × 3 input phases.
NOTE – Transformer cables are connected to terminals at the back of each primary PCU (see
Section 6.7.2.2, "Connecting the cables", page 102).
PRODUCT
ACS5000W gen. 2
PCU type
FS 1
PCU primary, 6-pulse
FS 2
FS 1
PCU primary, 12-pulse
FS 2
FS 3 PCU primary, 12-pulse
FS4 PCU secondary, 12-pulse
DOCUMENT KIND
User manual
POWER ELECTRONICS AND CABINET FEATURES
No. of
PCUs
3 ×
3 ×
3 ×
3 ×
DOCUMENT ID.
3BHS799208 E01
Input phases/PCU
3-phase system
2 × 3-phase system
0
REV. LANG. PAGE
J en 34/186