Lenze E94A - Manual (Page 641)

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5 Function blocks
5.207 L_WndFrictionCompensation - friction compensation
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5.207.3 Identifying the friction characteristic automatically
Select the memory location for the characteristic
Define the memory location (1 ... 4) on which the characteristic is to be saved after a successful iden-
tification via input dwSelectCurve.
Starting the identification
By setting the input bStartIdent from FALSE to TRUE, you start the identification.
Identification procedure
1. The basic function "Speed follower" is activated.
• Output bBusy changes to TRUE.
2. If the drive is still coasting it is waited until the motor stops coasting first.
3. With the acceleration/deceleration time set in C04846 , the drive is accelerated to the maxi-
mum speed set in C04845.
4. When the drive has reached the maximum speed, it is braked to standstill again with the acce-
leration/deceleration time set in C04846.
5. The friction characteristic is saved in the memory area selected via the input dwSelectCurve.
6. After the identification has been completed successfully, the output bBusy is reset to FALSE, and
the output bDone is set to TRUE.

Danger!
For the identification of the friction characteristic, the drive is accelerated to the maxi-
mum speed set in C04845 and braked to standstill again with the acceleration/decelera-
tion time set in C04846.