117
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Description
Notes
P1.8.7.10
1553
Voltage stabilizer limit “VoltStabLimit”
This parameter sets the limits for the voltage stabilizer output. The maximum and the
minimum value for the correction term in FreqScale.
Code
ID
Description
Notes
P1.8.8.1
1610
Flying start options
B0 =+1= Disable movement to reverse direction
B1 = +2=Disable AC Scanning
B2 = +4=Reserved (No function).
B3 = +8=Use encoder information for frequency estimate
B4 = +16=Use frequency reference for initial guess
B5 = +32=Disable DC scanning for step-up application
P1.8.8.2
1740
Motor control options
B00 = +1 = Use switching frequency of 3,6 kHz during flying start if below.
B01 = +2 = Analog output selection 12; torque sign in open loop shows negative on
negative direction on motoring side.
B02 = +4 = Enable angle identification in open loop control for PM Motor
B03 = +8 = Reserved
B04 = +16 = Reserved
B05 = +32 = Reserved
P1.8.8.3
1760
Resonance damping select
Feature can be used to dampen the constant frequency torque oscillations in the drive
system.
0 Not in use Only monitoring if Resonance damping frequency > 0,0 Hz.
See FW: ResonanceFrequency and FW: ResonanceAmplitude.
1 Band pass, Speed Error.
Oscillation damping with band pass filter from speed error.
2 Band Stop + Band pass, Speed error.Oscillation damping with band stop and band
pass filter from speed error.
3 Band Pass. Iq Current. Oscillation damping with band pass filter from Iq actual.
P1.8.8.4
1763
Resonance damping frequency
Frequency of torque oscillations to be damped in Hz.
P1.8.8.5
1764
Resonance damping gain
The gain for the oscillation damping. This changes amplitude of the compensating
signal used for oscillation damping.
P1.8.8.6
1765
Resonance damping phase
The compensating signal used for oscillation damping can be phase shifted 0 to 360
degrees using this parameter.
P1.8.8.7
1770
Resonance damping activation frequency
Defines the frequency limit when resonance damping is started.
P1.8.8.8
1771
Resonance damping filtering TC
Filter TC for external feedback (Iq) signal
P1.8.8.9
1515
Over modulation limit
Output Voltage Limit for partial modulation in 1%. 100% means maximum sinusoidal
modulation. 113% is full six step.
If you have sini filter in use set this to 96 %.
P1.8.8.10
655
Modulation index limit
Modulation index in % for closed loop operation. Higher value of motor terminal
voltage can be achieved by increasing this value.
P1.8.8.11
1591
DC voltage filtering time
Cut off frequency in 0.1Hz for 2nd order butterwort filter used in DCV-compensation.
5.8.5 Tuning settings
Flux stabilizer is a first order high-pass filter for the
estimated flux producing current Id. The output of the filter
is correcting term dU added to the output voltage reference.