304 Parameters
98
98 User motor parameters
Motor values supplied by the user that are used in the
motor model.
These parameters are useful for non-standard motors, or
to just get more accurate motor control of the motor on
site. A better motor model always improves the shaft
performance.
98.01 User motor model
mode
Activates the motor model parameters 98.02…98.12 and
98.14.
Notes:
• Parameter value is automatically set to zero when ID
run is selected by parameter 99.13 ID run requested.
The values of parameters 98.02…98.12 are then
updated according to the motor characteristics
identified during the ID run.
• Measurements made directly from the motor terminals
during the ID run are likely to produce slightly different
values than those on a data sheet from a motor
manufacturer.
• This parameter cannot be changed while the drive is
running.
Not selected
Not selected Parameters 98.02…98.12 inactive. 0
Motor parameters The values of parameters 98.02…98.12are used as the
motor model.
1
98.02 Rs user Defines the stator resistance R
S
of the motor model.
With a star-connected motor, R
S
is the resistance of one
winding. With a delta-connected motor, R
S
is one-third of
the resistance of one winding.
0.00000 p.u.
0.00000…0.50000
p.u.
Stator resistance in per unit. -
98.03 Rr user Defines the rotor resistance R
R
of the motor model.
Note: This parameter is valid only for asynchronous
motors.
0.00000 p.u.
0.00000…0.50000
p.u.
Rotor resistance in per unit. -
98.04 Lm user Defines the main inductance L
M
of the motor model.
Note: This parameter is valid only for asynchronous
motors.
0.00000 p.u.
0.00000… 10.00000
p.u.
Main inductance in per unit. -
98.05 SigmaL user Defines the leakage inductance
σL
S
.
Note: This parameter is valid only for asynchronous
motors.
0.00000 p.u.
0.00000…1.00000
p.u.
Leakage inductance in per unit. -
98.06 Ld user Defines the direct axis (synchronous) inductance.
Note: This parameter is valid only for permanent magnet
motors.
0.00000 p.u.
0.00000 … 10.00000
p.u
Direct axis inductance in per unit. -
No. Name/Value Description Default
FbEq 16
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