Lenze 8400 - Manual (Page 235)

Electrical installation
HighLine C control terminals
Digital inputs and outputs
6

235 EDS84ASC552 EN 9.1
Example circuit

Note!
For stable digital output states, in particular during the starting phase of the
controller, you must use an external 24V supply for the digital outputs.

Note!
Digital inputs and digital outputs have separated reference potentials (GI and
GO). If you interconnect inputs and outputs, the reference potentials are
connected as well by an external bridge.
 
DC 24 V
(+19.2...+28.8 V)
S1
24 V int.
50
mA
24E DI1 DI2 DI3 DI4 RFR
2.7k 2.7k 3.3k 3.3k 3.3k
X5
GND-I
DI5 DI6 DI7 GI 24I
1.6k 1.6k 3.3k
E84AVHC...
24O
DC 24 V
(+19.2...+28.8 V)
X4 DO1 DO2 DO3 GO
GND-O
E84AVHC...
8400HLC045 8400HLC045

24 V int.
50
mA
24E DI1 DI2 DI3 DI4 RFR
DC 24 V
(+19.2...+28.8 V)
S1
3.3k 2.7k 2.7k 3.3k
X5
GND-I
DI5 DI6 DI7 GI 24I
3.3k 1.6k 1.6k 3.3k
"
E84AVHC...
8400xLC022
Fig. 6-44 Wiring examples of the digital inputs and outputs

Wiring with one (or several) digital input (here: DI1), e.g. a PLC; optional: external
24 V supply
 Digital control (relay, valve, ...) with external 24 V supply
 Connection of an HTL incremental encoder with a maximum input frequency of
200 kHz
DI1 track A
DI2 track B
X4 Terminal for the digital outputs
X5 Terminal for the digital inputs
GI GND-I Ground reference potential for the digital inputs
GO GND-O Ground reference potential for the digital outputs