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5. Parameter Description
Eaton Electric General Inverters DF1 Series
UMXXXXXXXXE February 2020 www.eaton.com
Adjuster parameter
•
When the setting value of 11-06 increases, the current adjuster response level improves. But when the setting value
is too large, the current loop shocks, and the electromagnetic noise becomes louder.
5.12.2 PM motor setting
•
The parameters setting below can improve the VC and SVC control characteristic of PM motor.
Parameter
Name
Factory
Value
Setting Range
Content
11-07
P.327
PM motor types
0
0
SPM
1
IPM
11-08
P.328
PM initial motor position
detection selection
0
0
Pull in.
1
High frequency pulse
11-09
P.329
PM motor acceleration id
80%
0~200%
PM motor acceleration id given, valid only when 00-21=6
11-10
P.330
PM motor constant speed id
0%
0~200%
PM motor constant speed id given, valid only when 00-21=6
11-11
P.331
PM motor estimatedrotation
speed filter time
2ms
0~1000ms
PM motor estimated rotation speed filter timecoefficient,
valid only when 00-21=6
PM motor control setting
•
11-08 is used to select how the rotor position is detected at PM motor start.In the mode of PM motor close-loop
vector control, the inverter performs a magnetic pole search the first time it starts the motor. After that, rotor posi-
tion is calculated from the PG encoder signal and saved until the inverter power is switched off.
When 11-08=0, detect the initial magnetic pole position of the rotor by using the pull-in method, at this point, the
motor cannot start with heavy duty, or it may fail to start.
When 11-08=1, detect the initial magnetic pole position of the rotor by using the high frequency pulse vibration
method, electromagnetic noise may be generated from the motor at start.
11-09 is the current for pulling in the pole when PM motor starts. 05-05(the motor rated current) is set to 100%,
setting the pull-in current during acceleration/deceleration, adjustments to this setting may help in the following situ-
ations:
Increase this setting when a large amount of starting torque is required.Lower this setting if there is excessive cur-
rent during acceleration.
•
11-10 is used to make the directionof pole position of PM motor during operation more effective, the current for pull-
ing in, 05-05(the motor rated current) is set to 100%, set the d-axis current during operation at a constant speed.
Please make adjustment in the following situations:
Increase this setting when hunting occurs or the motor speed is unstable while running at a constant speed.If there
is too much current when driving a normal load at a constant speed, then reduce this setting value.
•
11-11 is PM motor speed observerfilter time coefficient. Usually, it is not necessary to adjust.
