Diagnostics and maintenance
369
ACH550 User's Manual
Capacitors
Reforming
The drive DC link capacitors need to be reformed (re-aged) if the
drive has been non-operational for more than one year. Without
reforming capacitors may be damaged when the drive starts to
operate. It is therefore recommended to reform the capacitors
once a year. See page
for how to check the date of
manufacture from the serial number shown on the drive labels.
For information on reforming the capacitors, refer to
Guide for
Capacitor Reforming in ACS50/150/350/550
[3AFE68735190
(English)], available on the Internet (go to
and enter the code in the Search field).
Replacement
The drive intermediate circuit employs several electrolytic
capacitors. Capacitor life can be prolonged by lowering the
ambient temperature.
It is not possible to predict a capacitor failure. Capacitor failure is
usually followed by an input power fuse failure or a fault trip.
Contact ABB if capacitor failure is suspected. Replacements for
frame sizes R5 and R6 are available from ABB. Do not use other
than ABB specified spare parts.
Summary of Contents for ACH550-01
Page 1: ...ACH550 User s Manual ACH550 01 Drives 0 75 110 kW ACH550 UH Drives 1 150 HP ABB ...
Page 10: ...Update Notice 8 ...
Page 12: ......
Page 18: ...6 ACH550 User s Manual ...
Page 50: ...38 Preparing for installation ACH550 User s Manual ...
Page 325: ...313 ACH550 User s Manual ...
Page 358: ...346 ACH550 User s Manual ...
Page 409: ...Technical data 397 ACH550 User s Manual Frame size R1 IP54 UL Type 12 ...
Page 410: ...398 Technical data ACH550 User s Manual Frame size R2 IP54 UL Type 12 ...
Page 411: ...Technical data 399 ACH550 User s Manual Frame size R3 IP54 UL Type 12 ...
Page 412: ...400 Technical data ACH550 User s Manual Frame size R4 IP54 UL Type 12 ...
Page 413: ...Technical data 401 ACH550 User s Manual Frame size R5 IP54 UL Type 12 ...
Page 414: ...402 Technical data ACH550 User s Manual Frame size R6 IP54 UL Type 12 ...
Page 415: ...Technical data 403 ACH550 User s Manual Frame size R1 IP21 UL Type 1 ...
Page 416: ...404 Technical data ACH550 User s Manual Frame size R2 IP21 UL Type 1 ...
Page 417: ...Technical data 405 ACH550 User s Manual Frame size R3 IP21 UL Type 1 ...
Page 418: ...406 Technical data ACH550 User s Manual Frame size R4 IP21 UL Type 1 ...
Page 419: ...Technical data 407 ACH550 User s Manual Frame size R5 IP21 UL Type 1 ...
Page 420: ...408 Technical data ACH550 User s Manual Frame size R6 IP21 UL Type 1 ...
Page 453: ......