Emerson E300 Series Design Manual page 215

Safety Product Mechanical
information information installation
R
Star connected equivalent circuit of a
permanent magnet
Stator Resistance (B34) = R
Transient Inductance Ld (B33) = L in the d (flux) axis
No Load Lq (B37) = L in the q (torque) axis with no current in the motor
Lq At The Defined Iq Test Current (B40) = L in the q axis with Id = 0 and Iq = Lq At The Defined Iq Test Current (B40)
Lq At The Defined Id Test Current (B42) = L in the q axis with Id = Lq At The Defined Id Test Current (B42) and Iq = 0.
B35
Mode
Minimum
Default
Type
Display Format
Coding
See Stator Resistance (B34).
B36
Mode
Minimum
Default
Type
Display Format
Coding
Value
0
1
2
Most permanent magnet motors include some saliency due to saturation and physical construction. Torque is normally produced by interaction
between the magnet flux and the stator current, but any saliency can be exploited to produce additional torque, which can increase the torque per
Amp produced by the motor. If Saliency Torque control (B36) = 0 (disabled) torque is only produced from the magnet flux. If Saliency Torque control
(B36) is set to a value of 1 or 2, and Rated Torque Angle is non-zero, the saliency of the motor will be used to produce additional torque. If the motor
has low saliency, i.e. Lq < Lq x 1.5 then Saliency Torque control (B36) should be set to 1 otherwise it should be set to 2.
See Rated Torque Angle (AS89) for a list of parameters that should be set up correctly for the motor to derive this value and allow saliency torque to
be exploited correctly.
Lq At The Defined Id Test Current (B42) = L in the q axis with Id = Lq At The Defined Id Test Current (B42) and Iq = 0.
E300 Design Guide
Issue Number: 1
Electrical Getting
User Menu A Commissioning
installation started
jwL
E
f
Stator Inductance
Open-loop: RFC-A
0.00
0.00
32 Bit User Save
Standard
RW, RA
Saliency Torque Control
RFC-S
0
0
8 Bit User Save
Standard
RW, TE
Text
Disabled
Low
High
Advanced
Diagnostics Optimization CT MODBUS RTU Technical Data
Parameters
Maximum 500.00
Units mH
Update Rate Background read
Decimal Places 2
Maximum 2
Units
Update Rate Background read
Decimal Places 0
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