52  Start-up       
The start sequence for the parameter example above is given 
below.
Control word:
•
Reset the fieldbus communication fault (if active).
•
Enter 7Eh (126 decimal) → SWITCH-ON DISABLED.
•
Enter 7Fh (127 decimal) → OPERATION ENABLED.
10.01 Ext1 start func FB Selects the fieldbus interface as 
the source of the start and stop 
commands for external control 
location 1.
12.03 Ext1 ctrl mode Speed Selects the speed control mode 
for external control location 
EXT1.
21.01 Speed ref1 sel FBA ref1
(Parameter 02.26)
Selects fieldbus reference 1 as 
the source for speed reference 1.
1) Read-only or automatically detected/set
2) Example
Drive parameter Setting for ACS850 
drives
Description