Replacement Sequence - ABB Symphony Harmony Series Instructions Manual

Replacement Procedures
Introduction

Replacement Sequence

WBPEEUI210509A0
This section provides replacement procedures for the power
system. The power system components are not field replace-
able. If a component fails, it must be returned to the factory for
repair.
NOTE: Follow the procedures for working with static sensitive devices when
performing the replacement procedures.
Refer to Figure 6-1 for the replacement sequence.
Each block of the flow represents a single task that must be
completed before continuing with the sequence. In some cases,
more than one path can be taken during replacement proce-
dures. For paths that are in parallel, either complete all of the
tasks in all of the paths before continuing or complete all of
the tasks in only those paths that apply before continuing. At
least one path must be completed.
Some blocks contain alphanumeric codes. These codes identify
the procedure that describes the steps to complete an indi-
cated task. Complete all of the steps given in a procedure
before continuing to the next procedure. By treating each task
as a separate entity, the procedures provide an easy method
for finding the information needed for each task in the replace-
ment sequence.
The procedures have check boxes in the margin by each proce-
dural step. When performing a procedure, check each box as
each step is completed. Some procedures have numbered
warnings and /or cautions under Safety Considerations. A tri-
angle with a warning or caution reference number appears in
the margin by the part of the procedure to which the warning
or caution applies.
Section 6
6 - 1