Lenze 9400 Manual de usuario descargar pdf (Pagina 421)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06 421

11 Basic drive functions

11.6 Homing

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11.6.2.1 Behaviour of the home position after mains switching

If the home position/information is also to be available after mains switching, the setting

C02652

= "1: Received" is required.

Another condition for keeping the home position/information after mains switching is the

compliance with the maximum permissible angle of rotation of the encoder.

• The maximally permissible angle of rotation can be set in C02653

in angular degree [°] with

regard to the encoder shaft (360° ≡ one encoder shaft rotation).

 Note!

Due to the internal numerical format and the resolution of one encoder revolution

according to C00100

, the position may not be reconstructed over the complete encoder

range!

• The possible number of revolutions can be calculated as follows:

Number of revolutions = 2

(31 - C00100)

• Example: For a standard multiturn absolute value encoder with an absolute display

area of 4096 revolutions (±2048), a maximum position resolution of 20 bits per

revolution can be used!

When resolvers or single-turn absolute value encoders are used and the mains is

switched off (24 V supply off), the encoder may only be moved by ½ revolution since

otherwise the home position will get lost due to the ambiguity of the encoder

information.

When multipole resolvers (C00080

> 1) are used, a renewed homing is required after

mains switching due to the ambiguity of the evaluated position.

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