5motor control (mctrl) – Lenze E84DSxxx User Manual
Page 106
5
Motor control (MCTRL)
5.1
Motor selection/Motor data
106
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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How to carry out automatic motor parameter identification:
1. Inhibit the controller if it is enabled, e.g. via the
2. Wait until the drive is at standstill.
3. Transfer the nameplate data to the following codes:
•
: Rated motor power
•
: Rated motor speed
•
: Rated motor current*
•
: Rated motor frequency*
•
: Rated motor voltage*
•
: Motor cos ϕ
* According to the star/delta connection method.
4. Defining the motor cable length and motor cable cross-section:
•
: Motor cable length
•
: Motor cable cross-section
The resulting motor cable resistance is displayed in
.
5. Start motor parameter identification:
• Device command
= "1: On / start"
6. Enable the controller again.
• Motor parameter identification starts.
• The progress of the identification run can be seen in
• The identification is completed if the "0: Off / ready" message is displayed in
7. Inhibit controller again.
Note!
Motor parameter identification may be aborted if a special motor (e.g. mid-frequency
motor) is used or if there is a large deviation between inverter and motor power.
In this case we recommend
• to reduce the P component Vp of the current controller (
) e.g. by halving.
• to increase the time constant Ti of the current controller (
) e.g. by doubling.
Another cause for the abort of the motor parameter identification could be the
implausibility of the entered nameplate data, e.g. the entry P = 0 kW for the motor
power.