6 10
KEB COMBIVERT F4-C
4
Name: Basis
19.11.98
Chapter Section Page Date
© KEB Antriebstechnik, 1997
All Rights reserved
Functional Description Encoder Interface
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Rt
150R
A+
B+
A-
B-
6.10.2 Encoder Inter-
face with 2nd
Encoder
Fig. 6.10.2.a Incremental encoder inputs
Channel 1 (X4)
Channel 2 (X5)
Pin Description and Specification
Signal X4 X5 Description Specification
Uext 11 5 ext. supply see below
+5 V 12 4 Supply 5V encoder 5 V max. 100mA (*1)
0 V 13 9 Reference potential
A+ 8 1 Signal input A+ 2 .. 5 V Terminating resistor
A- 3 6 Signal input A- 2 .. 5 V Rt = 150 Ohm
B+ 9 2 Signal input B+ 2 .. 5 V Terminating resistor
B- 4 7 Signal input B- 2 .. 5 V Rt = 150 Ohm
Shield Housing Housing PE
*1 The supply voltage for 5V encoder is generated from Uext. At that the load on Uext
amounts to approx. 1/3 of the encoder current.
Uext is a voltage needed for the supply of the control. The terminal Uext at the incremental
encoder sockets is directly connected with terminal X1.14 (Uext) of the ocntrol. After
deducting the current required by the control, following currents/voltages are available at
terminal Uext for the supply of the incremental encoders
Housing D 21,5V ±3V 100mA
Housing E 25,5V ±3V 100mA
from housing G 18V ±1V 200mA
If larger currents are needed for the supply of the incremental encoders, an external voltage
supply must be used. The external voltage is fed into terminal X1.14 and must be 24V
±25%. On disconnecting the power circuit the control is still supplied with energy.
The Terminal Uext
Input Wiring
Fig. 6.10.2.b Input wiring of encoder inputs
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