Chapter 11 - Acs 6000Sd Start-Up; Excitation Start-Up; Motor Idle Run; Absolute Encoder Positioning Routine - ABB ACS 6000 Commissioning Manual

ABB
11.1

Excitation Start-up

11.2

Motor Idle Run

11.2.1

Absolute Encoder Positioning Routine

11.2.2

First Start with No Load

ACS 6000 Commissioning Manual

Chapter 11 - ACS 6000sd Start-up

Before idle running the motor, all preparatory works such as
inspections, measurements and I/O signal tests must be done. That
means, all actions described in the previous chapters should be done
and possible defects found must be eliminated. No alarms are allowed
to be active, neither in the ACS 6000 nor in related switchgear feeders.
Check that the motor is ready for start (aligned, coupling is OK,
necessary lubrication is OK etc) and that starting the motor does not
cause any danger.
It is recommended that the driven equipment is discoupled from the
motor when the first start is performed if there is a risk of damage to the
driven equipment in case of incorrect rotation direction of the motor.
Excitation current control should be tested first. Constant excitation
current test can be used for that purpose. The excitation current control
can be activated when ARU is in MODULATING state (INU control at
READY RUN state).
Prior to the first start the absolute encoder has to be positioned. Using
following semi automatic procedure it is possible to measure the offset
of the encoder.
At the same time it is possible to check that current measurement chain
is operating correctly. It is also possible to measure the transient
inductances of the motor. Operation is done via AMC-table group 191
DIAGNOSTICS.
During positioning routine the operation of the excitation converter,
power stage modulation and phase order of the current measurement
was already checked. Drive should be now ready to first start.
When doing the first start, one should keep in mind that in order to
prevent the unnecessary rushing of the motor, all limits should be set to
safe values. If there is no certainty that phase order of the motor and
positive direction of rotation on the speed encoder coincides, there is
the possibility that first start ends to rushing of the motor (direction of
3BHS135824 ZAB E01Rev. D 53 (of 62)