Voltage Supply - Lenze PROFIBUS-DP EMF2133IB Instructions De Montage

4 Electrical installation

Voltage supply

Voltage supply
External voltage supply
)
Note!
With external voltage supply of the communication module, the active bus
terminating resistor is fed independently of the operation of the basic device.
Thus the bus system remains active even if the basic device is switched off or
fails.
If required, feed the communication module with a separate supply voltage via the
two−pole plug connector.
Use a separate supply unit in every control cabinet if the distance between the control
cabinets is larger than normal.
Plug connector
"+"
"−"
Controller
820X
821X / 822X / 824X /
93XX / 9300 servo
PLC / Drive PLC / ECS
servo system
8200 vector
50
Explanation
V = 24 V DC (21.6 V − 0% ... 26.4 V + 0 %)
I = 120 mA
Reference potential for external voltage supply
External voltage supply
Always required.
Only necessary, if the mains which supplies the corresponding controllers is
to be switched off but the communication must not be interrupted.
You can use the internal power supply for these controllers.
See information under Internal DC voltage supply" ^ 51
l
EDKMF2133 DE/EN/FR 6.1