Siemens CU240B-2 - Page 172

Advanced commissioning
6.2 Inverter control
Converter with the CU240B-2 and CU240E-2 Control Units
172 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
The abbreviations S1 … S5b to identify the converter states are defined in the PROFIdrive
profile.
Converter
status
Explanation
S1 In this state, the converter does not respond to the ON command. The converter goes
into this state under the following conditions:
• ON was active when switching on the converter.
Exception: When the automatic start function is active, ON must be active after
switching on the power supply.
• OFF2 or OFF3 is selected.
S2
This state is required to switch on the motor.
S3
The converter waits for the operating enable.
S4 The motor is switched on.
S51 The motor was switched off with OFF1 and brakes with the ramp-down time of the
ramp-function generator.
S52 The motor was switched off with OFF3 and brakes with the OFF3 ramp-down time, or
at the current limit.