Functional Description 1-17
7000-TD002A-EN-P – September 2007
Mtr Trq
Current (339 )
Rotor Angle
V
sd
V
sq
3
3
3
3
L
otal Leakage
(130)
Lm Rated
(131)
R Stator
(129)
LTotal Leakage
(130)
Motor Currents
Motor Voltages
VOLTAGE FLUX
MODEL
CURRENT FLUX
MODEL
Tach Feedback (349)
Speed Reference (278)
T Rotor (132)
MtrFlux Current
(338)
FluxAngle
Motor Voltages
VECTOR
ROTATOR
Motor Currents
Stator Current (340)
MOTOR
OPERATING
VARIABLES
MtrFlux
CurCmd
(310)
MtrTorque
CurCmd
(292)
Stator Voltage (344)
Mtr AirGap Power (346)
Mtr Power Factor (692)
MtrAirGapTrq (345)
Slip Frequency (343)
FlxFbk CurModel (341)
StatFrq CurModel (486)
Stator Freq (448)
FluxAngle
Flux Angle C
StatFrq VoltModel (485)
Flux Feedback (306)
FlxFbk VoltModel (342)
FluxAngle V
Flux Reference
(305)
FLUX
SELECTOR
Figure 1.8 – Motor Model
Except for the dc link overcurrent, rectifier over voltage and inverter
over voltage, the entire drive protection is realized in the software.
Adjustable parameters specifying the trip level and time delay are
provided for each fault. A detailed list of all the faults and warnings
(alarms) is provided in Chapter 3 – Troubleshooting.
The response to a drive alarm falls into three categories:
Drive/Motor Protection
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