Lenze 8400 - Manual (Page 135)

Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
135
5 Motor control (MCTRL)
5.1 Motor selection/Motor data
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• Care must be taken that the constant mass inertia of the drive (mass inertia of motor, gearbox,
shaft and constant load) is entered as exactly as possible in C00273 to calculate the speed
controller parameters as dynamically as possible.
• Mass inertias that are not constant (e.g. changing loads of reels or different loads of hoists)
must be entered in C00919/1 .
• If the mass inertia set in C00273 is too low, the speed controller parameters are calculated
less dynamically.
• If the mass inertia set in C00273 is too high, speed controller operation is unstable.
• If the mass inertia in C00273 is set to "0", the setting of bit 5 in C02865/1 has no effect on the
speed controller parameter calculation. In this case, the speed controller parameters will not be
calculated automatically after motor parameter identification.
Automatic calculation of other controller parameters
From version 12.00.00 onwards: Following successful motor parameter identification, the controller
parameters listed in the below table can also be calculated automatically.
• If these parameters are to be calculated, bit 6 of C02865/1 must be set to "6".
Selection of the identification mode
From version 12.00.00 onwards , two identification modes are available in C02867/1 :
• "1: Basic identification" (previous mode)
• Only for asynchronous motors
• Duration approx. 30 s
• "2: extended identification"
• Stands out due to increased accuracy of the determined motor parameters.
• Also supports synchronous motors and asynchronous motors with a power of more than 11
kW.
• Duration approx. 80 s

Tip!
In the Lenze setting, a setting of "0: automatic" is selected in
C02867/1 . This setting ensures
that the controller automatically selects the optimum procedure for motor parameter
identification.
Parameter Info ASM PSM
C00011 Appl.: Reference speed  
C00022 Imax in motor mode  
C00497 Nact filter time constant  
C00966 VFC: Time const. slip comp. 
C00982 VFC-ECO: Voltage reduction ramp 