98 ACS550 User’s Manual
Parameters
Complete parameter descriptions
This section describes the actual signals and parameters for ACS550. 
Group 99: START-UP DATA
This group defines special start-up data required to:
• set up the drive 
• enter motor information.
Code Description
9901 LANGUAGE
Selects the display language. There are two different Assistant Control Panels, each supporting a different language 
set. (Panel ACS-CP-L supporting languages 0, 2, 11…15 will be integrated into ACS-CP-A.) 
9902 APPLIC MACRO 
Selects an application macro. Application macros automatically edit parameters to configure the ACS550 for a 
particular application. 
31 = 
LOAD FD SET – FlashDrop parameter values as defined by the FlashDrop file. Parameter view is selected by 
parameter 1611 
PARAMETER VIEW.
• FlashDrop is an optional device for fast copying of parameters to unpowered drives. FlashDrop allows easy 
customization of the parameter list, e.g. selected parameters can be hidden. For more information, see MFDT-01 
FlashDrop User’s Manual [3AFE68591074 (English)].
-1 = 
USER S1 SAVE, -3 = USER S2 SAVE – With these it is possible to save two different user parameter sets into the 
drive permanent memory for later use. Each set contains parameter settings, including Group 99: START-UP 
DATA, and the results of the motor identification run. 
0 = 
USER S1 LOAD, -2 = USER S2 LOAD – With these the user parameter sets can be taken back in use.
9904 MOTOR CTRL MODE
Selects the motor control mode.
1 = 
VECTOR:SPEED – sensorless vector control mode.
• Reference 1 is speed reference in rpm.
• Reference 2 is speed reference in % (100% is absolute maximum speed, equal to the value of parameter 2002 
MAXIMUM SPEED, or 2001 MINIMUM SPEED if the absolute value of the minimum speed is greater than the maximum 
speed). 
2 = 
VECTOR:TORQ.
• Reference 1 is speed reference in rpm. 
• Reference 2 is torque reference in % (100% is nominal torque.)
3 = 
SCALAR:FREQ – scalar control mode.
• Reference 1 is frequency reference in Hz. 
• Reference 2 is frequency reference in % (100% is absolute maximum frequency, equal to the value of parameter 
2008 
MAXIMUM FREQ, or 2007 MINIMUM FREQ if the absolute value of the minimum speed is greater than the 
maximum speed).
9905 MOTOR NOM VOLT
Defines the nominal motor voltage. 
• Must equal the value on the motor rating plate. 
• The ACS550 cannot supply the motor with a voltage greater than the input power (mains) voltage.
Assistant Control Panel ACS-CP-A:
Assistant Control Panel ACS-CP-D (Asia):
0 = 
ENGLISH 1 = ENGLISH (AM)2 = DEUTSCH 3 = ITALIANO 4 = ESPAÑOL
5 = PORTUGUES 6 = NEDERLANDS 7 = FRANÇAIS 8 = DANSK 9 = SUOMI
10 = SVENSKA 11 = RUSSKI 12 = POLSKI 13 = TÜRKÇE 14 = CZECH
15 = MAGYAR
0 = ENGLISH 1 = CHINESE 2 = KOREAN 3 = JAPANESE
1 = ABB STANDARD 2 = 3-WIRE 3 = ALTERNATE 4 = MOTOR POT 5 = HAND/AUTO
6 = PID CONTROL 7 = PFC CONTROL 8 = TORQUE CTRL 31 = LOAD FD SET
0 = USER S1 LOAD -1 = USER S1 SAVE -2 = USER S2 LOAD -3 = USER S2 SAVE