Siemens SINAMICS G120P Function Manual

Communication via RS485
5.3 Communication via USS
Fieldbuses
Function Manual, 04/2018, FW V4.7 SP10, A5E34229197B AE
113
5.3.1.2
Parameters to set communication via USS
Fieldbus protocol selection p2030 = 1 (USS)
Baud rate p2020 = 8, 38400 bit/s
Setting range: 2400 bit/s … 187500 bit/s
Fieldbus analog outputs p0791[0 … 1]
Parameter to interconnect the analog outputs for control via the fieldbus
Fieldbus interface USS PZD number p2022 = 2
Setting the number of 16-bit words in the PZD part of the USS telegram
Setting range: 0… 8 (0 … 8 words)
Fieldbus interface USS PKW number, p2023 = 127
Setting the number of 16-bit words in the PKW part of the USS telegram
Setting range:
● 0, 3, 4: fixed length with 0, 3 or 4 words
● 127: variable lengths
Fieldbus error statistics r2029
Displaying receive errors at the fieldbus interface
Fieldbus monitoring time p2040 = 100 ms
Setting range: 0 ms … 1999999 ms
The more slaves that are connected in the network, the longer the fieldbus monitoring time
must be.
If process data is not transferred within one cycle of the fieldbus monitoring time, then the
inverter shuts down with fault F01910.
p2040 = 0 ⇒ bus monitoring deactivated.

Siemens SINAMICS G120P Specifications

General

Frequency Range	0 Hz to 550 Hz
Ambient Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C
Relative Humidity	5% to 95% (non-condensing)
Voltage Range	200 V to 240 V, 380 V to 480 V, 500 V to 690 V
Output Voltage	0V to input voltage
Control Type	Vector control, V/f control
Protection Class	IP20, IP55
Communication Interfaces	PROFIBUS, PROFINET, Modbus RTU
Cooling Method	Air cooling
Altitude	Up to 2000 m without derating
Power Range	0.37 to 630 kW