ACA 635 IGBT Supply Sections
7-1
Chapter 7 – Fault Tracing
Overview
This chapter explains the ACA 635 fault tracing procedure with the
Control Panel. For Control Panel use and motor-side inverter fault
tracing, see the
Firmware Manual
of the application program.
All Warning and Fault messages of the ACA 635 are presented in
tables below with information on the cause and remedy for each case.
Most Warning and Fault conditions can be identified and cured with
that information. If not, contact an ABB service representative. For
specific instructions on when/how to change control boards or their
wiring or power plates refer to
ACS 600 Service Manual
(EN code:
64401131).
CAUTION!
Do not attempt any measurement, parts replacement or
other service procedure not described in this manual. Such action will
void guarantee, endanger correct operation, and increase downtime
and expense.
WARNING!
All electrical installation and maintenance work described
in this chapter should only be undertaken by a qualified electrician. The
Safety Instructions
on the first pages of this manual must be followed.
Fault Tracing
The ACA 635 is equipped with advanced protection features that
continuously guard the unit against damage and down time due to
incorrect operating conditions and electrical and mechanical
malfunctions.
The warning message disappears when any of the Control Panel keys
are pressed. The warning will reappear in one minute if conditions
remain unchanged. If the frequency converter is operated with the
Control Panel detached, the red LED in the Control Panel mounting
platform indicates fault condition.
For setting of programmable warning and fault messages and
functions, refer to
Chapter 8 – Parameters.
Fault Resetting
An active fault can be reset either by pressing the keypad
RESET
key,
by digital input or fieldbus, or switching the supply voltage off for a
while. When the fault has been removed, the ACA 635 can be started.
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