Selection Of Encoder - KEB COMBIVERT F4-F Applications Manual

Encoder Interface
Multiturn resolution
encoder 2 (dr.31)
Encoder 2 clock
frequency (dr.32)
Encoder 2 code (dr.33)
6.9.4 Selection of
Encoder
Max. operating
frequency
(max.sampling
frequency)
© KEB Antriebstechnik, 1999
All Rights reserved
When a SSI-multiturn-absolute value encoder is connected, the bits for the multiturn-
resolution can be adjusted. (12 bit)
The clock frequency of the SSI-encoder is adjusted with parameter dr.32. Selection between
two clock frequencies is possible 0 : 312,5 kHz or 1 : 156,25 kHz. The smaller clock frequency
should only be adjusted with long line lenghts, because malfunctions can occur with a
bigger clock frequency.
For SSI-encoder two codes are supported by the unit:
0 : Binary coded
1 : Gray code
Precondition for a good control behaviour of a drive is not least a question of the selection
and the correct connection of the encoder. This also includes the mechanical as well as
the electrical connection.
Depending on the max. operating frequency of the encoder input, the encoder and the
maximum speed of the drive the line number of the encoder can be selected.
6.9.4 Speed and line number in dependence on the max. operating frequency of the
encoder inputs
10000
1000
1000
Name: Basis
KEB COMBIVERT F4-F
Functional Desription
Line number z
Date
09.08.00
ANTRIEBSTECHNIK
200 kHz
300 kHz
Encoder input 2
Encoder input 1
10000
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