Parameter Descriptions 7-11
MN767S
7.4 Advanced Parameters
The VS1STS contains advanced parameters described in this section. These parameters are not visible to end users unless
P1-14 is set to a value of ‘702’. The parameters are list below.
7.4.1 Advanced Parameters - Parameter Group 5
Table 7-6 Advanced Parameters - Parameter Group 5
Par
No.
Description
Range
Units
Default
Explanation
P5-01
Motor Stator Resistance
(Rs)
Drive dependent
Ω
-
During an auto tune, the drive
measures / calculates these
parameters to optimize the
motor control performance.
The values can be adjusted
by the user, however this may
have a negative effect on
the motor behavior, or cause
unexpected results, and this is
not recommended.
P5-02
Motor Rotor resistance
(Rr)
Drive dependent
Ω
-
When set to 1, the drive
immediately carries out a non-
rotating auto tune to measure
the motor parameters for
optimum control and efficiency.
P5-03
Stator Inductance
(Ls)
Drive dependent
-
-
P5-04
Magnetizing Current
(Id rms)
10% to 80% of motor rated
current
A
-
P5-05
Leakage coefficient
(Sigma)
0.025 to 0.250
-
-
P5-06
Reserved
-
-
P5-07
Quick Rs Measurement
Enable
0: Disable
1: Enable
-
1
This parameter enables (1) or
disables (0) the motor stator
resistance measurement when
the drive run signal is given.
Since an auto-tune is usually
carried out during the
commissioning process, the
motor is cold. Temperature
dependent parameters (i.e.
stator resistance) can vary
significantly during operation.
Whenever the drive is enabled
from a stopped condition, the
drive will start from the Auto-
tuned (cold) parameters. To
adjust for variance in stator
resistance, the drive can perform
a measurement on enable.
A delay of one magnetization
time constant (typically 100 –
200 ms) can be added before
start up. This function is only
active when the drive is in vector
control mode.
Summary of Contents for VS1STS Series
Page 1: ...10 11 Installation Operating Manual MN767S VS1STS AC Microdrive ...
Page 6: ...iv MN767S ...
Page 28: ...5 8 Control Wiring MN767S ...
Page 50: ...8 2 Customizing Your Application MN767S ...
Page 54: ...9 4 Troubleshooting MN767S ...
Page 56: ...A 2 Technical Specifications MN767S ...
Page 68: ...D 2 Options and Kits MN767S ...