Lenze E84DGFCP - Manual (Page 27)

EDS84DMOTPBUS EN 3.0 - 11/2011
L
27
Communication manual 8400 motec PROFIBUS
Installation
Electrical installation
5.2.5 External voltage supply
 By means of the external voltage supply, PROFIBUS communication for commissioning
can be established, and the data of the digital and analog inputs can be queried.
 Furthermore the external voltage supply serves to maintain PROFIBUS communication
if the main supply fails.
 The digital inputs RFR, DI1 ... DI5 and the analog input can continue to be evaluated.
 The external voltage supply is done via the terminals 24E and GND of the terminal strip
X3.
 Permissible voltage (DC) / max. current:
– U = 24 V DC (20 V - 0 % ... 29 V + 0 %)
– I
max
= 400 mA
 Access to parameters of a device that is disconnected from the mains is not possible.

Hardware manual "Inverter Drives 8400 motec"
Here you can find detailed information on how to wire the communication unit.