Siemens SINAMICS G120 - Page 49

Commissioning
4.2 Commissioning
Converter with Control Units CU230P-2; CU240B-2; CU240E-2
Getting Started, 11/2013, A5E32885834B AA
49
Table 4- 5 Set the USS interface
Parameter
Description
p2020
Set the baud rate
Value
4
5
6
7
Baud rate
2400
4800
9600
19200
Value
8
9
10
11
Baud rate
38400
57600
76800
93750
Value
12
13
Baud rate
115200
187500
p2022
Fieldbus interface USS PZD number
Sets the number of 16-bit words in the PZD part of the USS telegram
Setting range: 0… 8 (0 … 8 words)
p2023
Fieldbus interface USS PKW number
Sets the number of 16-bit words in the PKW part of the USS telegram
Setting range:
• 0, 3, 4: 0, 3 or 4 words
• 127: variable length
Table 4- 6 Setting the ramp-function generator
Parameter
Description
p1080
Minimum speed in [rpm]
p1082
Maximum speed in [rpm]
p1120
Ramp-up time of the motor after switching on in [s]
p1121
Ramp-down time of the motor after switching off in [s]
Table 4- 7 Setting the control mode
Parameter
Possible settings
p1300
Setting the open-loop and closed-loop control mode of a drive
0: V/f control with linear characteristic
1: Linear V/f characteristic with Flux Current Control (FCC)
2: V/f control with square-law characteristic
3: Freely selectable V/f characteristic
4: Linear V/f characteristic ECO
5: Linear V/f characteristic for applications requiring a precise frequency in textile systems
6: Linear V/f characteristic with FCC for applications requiring a precise frequency in textile systems
7: Square-law V/f characteristic with ECO
19: V/f control without characteristic
20: Vector control without speed encoder
22: Torque control without speed encoder