ACQ550-U1 User’s Manual
265
Maintenance
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 section
on 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, ACS55, ACS150, ACS310, ACS320, ACS350, ACS550, ACH550 and
ACQ550
(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. Their life span
is from 35 000
…
90 000 hours depending on drive loading and ambient temperature.
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
a input power fuse failure or a fault trip. Contact ABB if capacitor failure is suspected.
Replacements for frame size R5 and R6 are available from ABB. Do not use other
than ABB specified spare parts.
Control panel
Cleaning
Use a soft damp cloth to clean the control panel. Avoid harsh cleaners which could
scratch the display window.
Battery
A battery is used for ACQ Control Panels. The battery keeps the clock operating in
memory during power interruptions.
The expected life for the battery is greater than ten years. To remove the battery, use
a coin to rotate the battery holder on the back of the control panel. Replace the
battery with type CR2032.
Note:
The battery is NOT required for any control panel or drive function, except the
clock.
Summary of Contents for ACQ550-U1-011A-6
Page 1: ...ACQ550 User s Manual ACQ550 U1 Drives 1 200 hp ...
Page 4: ......
Page 10: ...10 ACS550 U1 User s Manual Table of contents ...
Page 42: ...42 ACQ550 U1 User s Manual Start up control with I O and ID Run ...
Page 56: ...56 ACQ550 U1 User s Manual Control panel ...
Page 68: ...68 ACQ550 U1 User s Manual Application macros ...
Page 250: ...250 ACQ550 U1 User s Manual Fieldbus adapter ...
Page 266: ...266 ACQ550 U1 User s Manual Maintenance ...
Page 314: ...314 ACQ550 U1 User s Manual Index ...