PROFINET IO – Start-up   279
Starting up fieldbus communication for ACS850 
and ACQ810 drives
1. Power up the drive.
2. Enable the communication between the adapter module and 
the drive with parameter 50.01 FBA enable.
3. With parameter 50.02 Comm loss func, select how the drive 
reacts to a fieldbus communication break. 
Notes: 
• This function monitors both communication between the 
fieldbus master and the adapter module and 
communication between the adapter module and the drive. 
• In ACQ810, you can select the control locations to be 
monitored with parameter 50.21 Comm loss enable. By 
default, the monitoring is enabled in both control locations 
(EXT1 and EXT2). 
4. With parameter 50.03 Comm loss t out, define the time 
between communication break detection and the selected 
action. 
5. Select application-specific values for parameters 
50.04…50.11. 
Examples of appropriate values are shown in the tables below.
6. Set the module configuration parameters in group 51. 
At the minimum, select the communication protocol and profile 
with parameter 51.02 and configure the network settings with 
parameters 51.03…51.13.