Setting Application Macros - Siemens SINAMICS V20 Operating Instructions Manual

Connection macro Cn011 - MODBUS RTU control
Connection macro settings:
Parameter Description
P0700[0] Selection of command source
P1000[0] Selection of frequency
P2023[0] RS485 protocol selection
P2010[0] USS/MODBUS baudrate
P2021[0] MODBUS address
P2022[0] MODBUS reply timeout
P2014[0] USS/MODBUS telegram off
time
P2034 MODBUS parity on RS485
P2035 MODBUS stop bits on RS485
5.5.1.4

Setting application macros

NOTICE
Application macro settings
When commissioning the inverter, the application macro setting is a one-off setting. Make
sure that you proceed as follows before you change the application macro setting to a value
different from your last setting:
1. Do a factory reset (P0010 = 30, P0970 = 1)
2. Repeat the quick commissioning and change the application macro
Failure to observe may cause the inverter to accept the parameter settings from both the
currently and the previously selected macros, which may lead to undefined and
unexplainable operation.
SINAMICS V20 Inverter
Operating Instructions, 11/2016, A5E34559884-006
Factory default Default for Cn011 Remarks
1 5
1 5
1 2
6 6
1 1
1000 1000
2000 100
2 2
1 1
Commissioning via the built-in BOP
5.5 Quick commissioning
RS485 as the command source
RS485 as the speed setpoint
MODBUS RTU protocol
Baudrate 9600 bps
MODBUS address for inverter
Maximum time to send reply back to
the master
Time to receive data
Parity of MODBUS telegrams on
RS485
Number of stop bits in MODBUS
telegrams on RS485
73