Lenze 8400 - Page 143

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 143
5 Motor control (MCTRL)
5.1 Motor selection/Motor data
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
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 C02864/1.
Principal sequence of the motor parameter identification
1. The motor stator resistance (C00084
) is measured.
2. The inverter error characteristic is measured.
3. The motor stator leakage inductance (C00085
) is measured.
4. The V/f base frequency (C00015
) is calculated.
5. The slip compensation (C00021
) is calculated.
6. The V
min
boost (C00016) is detected.
7. Only for asynchronous motors:
The motor magnetising inductance (C00092) and the motor rotor resistance (C00082) are
measured.
The motor magnetising current (C00095
) is measured.
From version 12.00.00:
8. If C02865/1
- bit 4 = "0" (Lenze setting):
The current controller and field controller parameters are calculated. (See table
.)
9. If C02865/1
- bit 5 = "1":
The speed controller parameters are calculated. (See table
.)
10. If C02865/1
- bit 6 = "1":
Other controller parameters are calculated. (See table
.)
From version 15.00.00:
11. If C02864/1
- bit 6 = "0" (Lenze setting):
The field weakening controller parameters are calculated and certain special functions of the
internal motor control are activated. (See table
.)
Parameters Info ASM PSM
C00577
SC: Vp field weakening controller 
C00578
SC: Tn field weakening controller 
Activation of special functions of the internal motor control
C02864/1
Bit 5 is set to "1"
 Field/field weakening controllers are called in a 500-μs cycle.*

Bit 7 is set to "1"
 In case of servo control for asynchronous motors, the rated motor
speed C00087
is assumed for the calculation of the slip from the
nameplate (C02879
/Bit 1 = "0" for a warm machine.*
Slip calculation from motor equivalent circuit diagram data
( 250)

* If bit 6 is set to "1" in C02864/1
, bit 5 and bit 7 are reset to "0".