Sequence Control When Switching The Motor On And Off - Siemens SINAMICS G115D Operating Instructions Manual

The monitoring of the driven load prevents impermissible operating modes, e.g. dry-running
of a pump.
Energy saving
The converter can optimize the efficiency of the motor.
The converter calculates how much energy controlled converter operation saves when
compared to mechanical flow control (e.g. throttle).
7.2

Sequence control when switching the motor on and off

Overview
The sequence control defines the rules for switching the motor on and off.
After switching the supply voltage on, the converter normally goes into the "ready to start"
state. In this state, the converter waits for the command to switch on the motor.
The converter switches on the motor with the ON command. The converter changes to the
"Operation" state.
After the OFF1 command, the converter brakes the motor down to standstill. The converter
switches off the motor once standstill has been reached. The converter is again "ready to
start".
Requirement
Functions
In order to be able to respond to external commands, you must set the command interface
so that it fits your specific application.
Tools
To change the function settings, you can use a commissioning tool.
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA
Motor temperature monitoring using a temperature sensor (Page 320)
Motor protection by calculating the temperature (Page 323)
Motor and converter protection by limiting the voltage (Page 325)
Monitoring the driven load (Page 327)
Efficiency optimization (Page 334)
Calculating the energy saving for fluid flow machines (Page 337)
7.2 Sequence control when switching the motor on and off
Advanced commissioning
131