Rockwell Automation SB3000 Configuration and Programming - Manual (Page 98)

B-2 SB3000 Drive Configuration and Programming
L_E6% Inductance
The value stored in this variable sets the
inductance of the Power Module. The value is
scaled in microhenries. Units: µH
Default Value: 500
Low Limit: 167
High Limit: 500
Step: 1
For a single power unit, assign a value of 500. For two parallel power units, 250. For
three parallel units, 167.
OVT_E0% Overvoltage Warning Threshold
A warning is generated (register 203/1203,
bit 0) if the DC bus voltage exceeds the value
stored in this variable. The value is scaled in
volts. Units: Volts
Default Value: 850
Low Limit: 600
High Limit: 925
Step: 1
This value should be set above the normal operating voltage (displayed in the DC
Bus Voltage Feedback register, 206/1206).
UVT_E0% Undervoltage Warning Threshold
A drive warning is generated (register 203/
1203, bit 1) if DC bus voltage is less than the
value stored in this variable. The value is scaled
in volts. Units: Volts
Default Value: 750
Low Limit: 600
High Limit: 925
Step: 1
VDC_A% Voltage Loop Damping Factor
The value in this variable selects the desired
response of the voltage loop. This value is used
by the PMI Processor to determine the integral
gain (Ki) of the voltage loop:
Ki = VDC_WCO% ÷ VDC_A% Units: None
Default Value: 120
Low Limit: 40
High Limit: 200
Step: 1
The higher the value, the smaller the integral gain and the overshoot in the voltage
loop. The lower the value, the larger the integral gain and the overshoot in the
voltage loop. Ideally, the value should be set equal to 0.4 * VDC_WCO%.
VDC_FF% Voltage Loop Feed Forward
The value in this variable selects the feed
forward gain in the voltage loop. This value
should normally be set to 1000. Units: None
Default Value: 1000
Low Limit: 0
High Limit: 1400
Step: 1