Modbus/TCP – Start-up  71
The start sequence for the parameter example above is given 
below.
Control word:
• Reset the fieldbus communication fault (if active).
• Enter 47Eh (1150 decimal) –> READY TO SWITCH ON.
• Enter 47Fh (1151 decimal) –> OPERATING (Speed mode)
or
C7Fh (3199 decimal) –> OPERATING (Torque mode).
32.02 TORQ REF ADD 
SEL
FBA REF2 Selects the fieldbus reference 2 
as the source for torque 
reference 1.
34.01 EXT1/EXT2 SEL P.FBA MAIN CW.15 Enables external control location 
1/2 selection through the fieldbus 
only (bit 15 in the fieldbus 
Control word).
34.03 EXT1 CTRL MODE1 Speed Selects speed control as the 
control mode 1 for external 
control location 1.
34.05 EXT2 CTRL MODE1 Torque Selects torque control as the 
control mode 1 for external 
control location 2.
1)
 Read-only or automatically detected/set
2)
 Example
Drive parameter Setting for ACSM1 
drives
Description