KEB COMBIVERT F4-F Applications Manual page 200

Functional Description
Input signals
6.9.4.a Input signals
TTL-voltage differential levels according
to TIA/EIA-RS422-B
0° 90° 360°
A
A
B
B
N
N
Chapter Section Page
6 9 8
The max. signal frequency, which is given out by the encoder, is calculated as follows:
f [kHz] =
max
The following condition must be met:
f < max. operating frequency of encoder < max. operating frequency of interface
max
The encoder interfaces support following input signals:
Encoder interface 1 (X4)
Rectangular signal with 2...5 V
sine-wave signal with 1 Vss
The two, by 90° electrical out of phase signals, A and B as well as their inverted signals are
generally evaluated. The zero track is needed for the reference point approach in the
positioning module. Zero track (also reference marking channel) gives out 1 signal per
revolution.
Date Name: Basis
KEB COMBIVERT F4-F
09.08.00
f
n [min -1 ] x z
max
n
60000
z:
Rectangular signal with 2...5 V
Sine-wave signal U
A
U
0
A
U
0
B
U
0
B
U
0
N
U
0
N
U
0
Encoder Interface
: max. signal frequency
max
: max. speed
max
encoder line number
Encoder interface 2 (X5)
=1 Vss; U =2,5 V;
ss 0
(only for X4)
90°
U
U
© KEB Antriebstechnik, 1999
All Rights reserved
U
ss
U
ss
ss
ss
0,5 V
ss
0,5 V
ss