Start-Up - ABB ACS800 Application Manual

24

Start-up

• It is recommended to set parameter 99.04 MOTOR CTRL MODE to DTC and to
adjust parameters 20.11 P MOTORING LIM and 20.12 P GENERATING LIM to
limit the maximum power. The braking power given by equation 3 can also be
used as the parameter value of 20.12 P GENERATING LIM.
• When brake chopper is used, set parameter 27.08 BC CTRL MODE to COMMON
DC. This activates the chopper when the DC voltage is high. Also the parameter
20.05 OVERVOLTAGE CONTROL must be disabled from all of the converters
separately.
• All converters must be in the READY state before starting. See section
signals
• Switch on the possible DC contactors based on Table 1 after all of the DC links
are charged and the converters are in the READY state, i.e. when the power is on
and no faults appear.
Note: The parameter settings mentioned above apply to ACS800 Standard
Application Program.
Note: With ACS800-11, line-side converter parameter 16.15 I/O START MODE must
be set to DI2 LEVEL (= IGBT supply unit starts modulating always when the RMIO
control board is powered). If parameter 16.15 setting is other than DI2 LEVEL,
the charging resistor can be damaged.
Always check the setting of parameter 16.15 I/O START MODE after software
update, macro change or control board replacement!
See ACS800-11 Hardware Manual for information on how to change the line-side
converter parameters with control panel.
Start-up
for instuctions on how to connect the READY signals.
READY