Parameter Descriptions
2-3
7000-TD002A-EN-P – September 2007
Feedback Parameters
Line Voltage pu [Line Voltage pu]
Linear Number:
135
Minimum Value:
0.000 pu
Maximum Value: 2.000 pu
Access Level:
Service
Read/Write:
Read
Only
This parameter is the estimated value of the input line voltage in per unit. This is calculated from the
measured rectifier input voltage
Rect Input Volt
(696) and adding the voltage drop in the input impedance
due to the measured line current
Line Current pu
(122). The
Input Impedance
(140) is determined by
auto-tuning. For 18-pulse drives, the line voltage is the summation of the estimated voltage from each of
the three bridge voltages.
Rectifier Input Volt [Rec Input Volt]
Linear Number:
696
Minimum Value:
0.000 pu
Maximum Value: 2.000 pu
Access Level:
Service
Read/Write:
Read
Only
This parameter is the measured voltage at the input of the master rectifier bridge in per unit using the
Voltage Sensing Board. For 6-PWM drive this is also the voltage across the line filter capacitor. For 18-
pulse drives this value represents the voltage at the input of the master bridge and will be approximately
one third of the
Line Voltage pu
(135). This parameter is used for protection and also by the flux controller
to adjust the flux command during input voltage sag conditions.
Rectifier DCLink Volt [Rec DCLink Volt]
Linear Number:
645
Minimum Value:
-2.000 pu
Maximum Value: 2.000 pu
Access Level:
Service
Read/Write:
Read
Only
This parameter displays the measured DC Link voltage in per unit on the rectifier side using the Voltage
Sensing Board.
Inverter DCLink Volt [Inv DCLink Volt]
Linear Number:
643
Minimum Value:
-2.000 pu
Maximum Value: 2.000 pu
Access Level:
Service
Read/Write:
Read
Only
This parameter displays the measured DC Link voltage on the inverter side in per unit using the Voltage
Sensing Board.
Содержание PowerFlex 7000
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