SEW-Eurodrive DFE24B EtherCAT - Setting the MOVITRAC B Frequency Inverter

Manual – Fieldbus Interface DFE24B EtherCAT®
39
5
Setting the MOVITRAC
®
B frequency inverter
Project Planning and Startup
5.5 Setting the MOVITRAC
®
B frequency inverter
To control the MOVITRAC
®
B frequency inverter via EtherCAT
®
, you must set the pa-
rameters P100 Setpoint source and P101 Control signal source to "SBus". With the set-
ting "SBus", the MOVITRAC
®
B frequency inverter is parameterized for receiving the
setpoints from the DFE24B. The MOVITRAC
®
B frequency inverter now responds to the
process output data transmitted from the master programmable controller. It is neces-
sary to set the SBus1 timeout interval (P883) to a value other than 0 ms for the
MOVITRAC
®
B inverter to stop if faulty SBus communication occurs.
SEW-EURODRIVE recommends a value in the range between 50 and 200 ms.
Activation of the control signal source and setpoint source SBus is signaled to the ma-
chine control using the "SBus mode active" bit in the status word.
For safety reasons, you must also enable the frequency inverter at the terminals for con-
trol via the fieldbus system. Consequently, you must wire and program the terminals in
such a way that the inverter is enabled via the input terminals. The simplest way of en-
abling the frequency inverter at the terminals is to connect the DIØ1 (function
CW/STOP) input terminal to a +24 V signal and to program the remaining input terminals
to NO FUNCTION.
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INFORMATION
• Configure the parameter P881 SBus address to values 1 – 8 in ascending order.
• SBus address 0 is used by the DFE24B gateway, and so cannot be used here.