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Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
143
5
Motor control (MCTRL)
5.1
Motor selection/Motor data
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Automatic calculation of the field weakening controller parameters for ASM servo control
From version 15.00.00
, the field weakening controller parameters are automatically calculated as
well after a successful motor parameter identification. Moreover, the special functions of the
internal motor control listed in the table are activated.
• If these parameters are not to be calculated/activated, bit 6 has to be set to "1" in
.
Principal sequence of the motor parameter identification
1. The motor stator resistance (
) is measured.
2. The inverter error characteristic is measured.
3. The motor stator leakage inductance (
) is measured.
4. The V/f base frequency (
) is calculated.
5. The slip compensation (
) is calculated.
6. The V
min
) is detected.
7. Only for asynchronous motors:
The motor magnetising inductance (
) and the motor rotor resistance (
) are
measured.
The motor magnetising current (
) is measured.
From version 12.00.00:
8. If
- bit 4 = "0" (Lenze setting):
The current controller and field controller parameters are calculated. (See
.)
9. If
- bit 5 = "1":
The speed controller parameters are calculated. (See
.)
10. If
- bit 6 = "1":
Other controller parameters are calculated. (See
.)
From version 15.00.00:
11. If
- bit 6 = "0" (Lenze setting):
The field weakening controller parameters are calculated and certain special functions of the
internal motor control are activated. (See
.)
Parameters
Info
ASM
PSM
SC: Vp field weakening controller
SC: Tn field weakening controller
Activation of special functions of the internal motor control
Bit 5 is set to "1"
Field/field weakening controllers are called in a 500-
μ
s cycle.*
Bit 7 is set to "1"
In case of servo control for asynchronous motors, the rated motor
is assumed for the calculation of the slip from the
nameplate (
/Bit 1 = "0" for a warm machine.*
Slip calculation from motor equivalent circuit diagram data
, bit 5 and bit 7 are reset to "0".