2. Set all the parameters specific to the fieldbus using the DIP switches on the fieldbus option pcb.
For this example, configure the process data length to “3PD”. For the option FFI 31..
(INTERBUS-S), for example, this can be done via the DIP switches on the option pcb. In the case
of PROFIBUS-DP (option FFP 31..), the process data length is configured in the master module.
Please see the user manuals on the relevant fieldbus option pcb for further information.
3. Switch on the external 24 V supply. As the inverter has not yet had parameters for fieldbus
operation, do not yet switch on the mains voltage for safety reasons.
4. Activate the factory setting.
5. Set the inverter Control Mode parameter at Fieldbus.
6. As the description of process data PO1, PI1, PO2 and PI2 corresponds to the factory setting, you
only have to change the process data description parameters for the third process data word to
the setting specified.
7. As you have changed the setpoint description for the process input data, the inverter has
automatically locked with
Enable Fieldbus Setpoints = NO. Enable the fieldbus setpoints with P570
Enable Fieldbus Setpoints = YES.
830 YES
FACTORY SETTING
00342ADE
Fig. 44: Activating the factory setting from the keypad
841 FIELDBUS
CONTROL MODE
00343AEN
Fig. 45: Switching to fieldbus control mode via the keypad
565 APPARENT CURRENT
PI3 ACT. VALUE DESCRIPT.
564 RAMP
PO3 SETP. DESCRIPT.
00351AEN
Fig. 46: Setpoint and actual value description of the third process data word via the keypad
570 YES
ENABLE SETPOINTS
00352AEN
Fig. 47: Enabling the fieldbus setpoints from the keypad
7
Application Examples
MOVITRAC
®
31.. Fieldbus Unit Profile
63
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