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4614
4615
4610
Open Loop
4611
Slip Control
4612
2. Use the motor name plate data and the self characterization routine provided by Gen4 and
DVT (described below).
The flux vector variant of software includes motor temperature compensation which can be used
to adjust rotor resistance (4641
Self characterization
WARNING: The self characterization function will cause the motor to operate. Always
ensure the vehicle is jacked up, with the driving wheels off the ground and free to turn
before starting the test.
The motor self-characterisation process allows a user to determine the electrical parameters
required for efficient control of AC induction motors using a Gen4 controller connected to a PC
or laptop running characterisation software. For further information, please contact your local
Sevcon representative.
Doc. # 177/52701
Rev. 3.3
Saturation map showing magnetising current versus
h
inductance.
Second motor power limit map. Overrides map in 4611
h
on trigger defined in 4652
Motor flux factor map showing slip versus magnetising current
h
factor. Used to give additional torque at low speed.
Motor power limit map showing maximum slip versus speed.
h
Voltage cutback map showing voltage versus torque reduction
h
factor.
,8) with motor temperature. This is set at 4621
h
Configuration
.
h
,4 to 7.
h
based
h
6-9
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