Siemens SINAMICS G120 CU240B-2 - Digital outputs

Configuring the terminal block
5.3 Digital outputs
Inverter with CU240B-2 and CU240E-2 Control Units
96 Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
5.3 Digital outputs
Up to three digital outputs are available that can be programmed to display different inverter
states, e.g. faults, alarms and upper limit violations.
Table 5- 5 Pre-assignment of the digital outputs
Terminal Digital output Pre-assignment Pre-assignment can
be changed via
18 NC
19 NO
20 COM
DO 0 Inverter fault active p0730
21 NO
22 COM
DO 1 Inverter alarm active
Not available with Control Units
CU240B-2 and bCU240B-2 DP
p0731
23 NC
24 NO
25 COM
DO 2 Motor is switched on
Not available with Control Units
CU240B-2 and bCU240B-2 DP
p0732
Table 5- 6 Changing the assignment of digital outputs to common signals
p0730, p0731 or p0732 = …
= 0 Deactivating digital output = 52.10 f_actual >= P1082 (f_max)
= 52.0 Drive ready = 52.11 Alarm: Motor current/torque limit
= 52.1 Drive ready for operation = 52.12 Brake active
= 52.2 Drive running = 52.13 Motor overload
= 52.3 Drive fault active = 52.14 Motor CW rotation
= 52.4 OFF2 active = 52.15 Inverter overload
= 52.5 OFF3 active = 53.0 DC brake active
= 52.6 Switching on inhibited active = 53.1 f_actual < P2167 (f_off)
= 52.7 Drive alarm active = 53.2 f_actual > P1080 (f_min)
= 52.8 Setpoint/actual value discrepancy = 53.3 Actual current value r0027 ≥ P2170
= 52.9 Process data control = 53.6 f_actual ≥ setpoint (f_setpoint)
If you wish to connect other inverter signals to a digital output, interconnect the
corresponding binector output to the output using BICO technology. For more information,
see the parameter list and the function block diagrams 2230 ff of the List Manual. A list of all
of the binector outputs is also provided in the List Manual.
If you wish to invert the digital outputs, set the corresponding index of the parameter P0748
to 1:
● p0748.0 = 1, signal of digital output 0 is inverted
● p0748.1 = 1, signal of digital output 1 is inverted
● p0748.2 = 1, signal of digital output 2 is inverted