Parameters
The parameters differ depending on the motor control mode.
Table 6-106 Parameters for U/f control
Number
Name
Factory setting
p0210
Device supply voltage
400 V
p1280[D]
Vdc controller configuration (U/f)
1
r1282
Vdc_max controller, switch-on level (U/f)
- V
p1283[D]
Vdc_max controller, dynamic factor (U/f)
100%
p1284[D]
Vdc_max controller, time threshold (U/f)
4 s
p1290[D]
Vdc controller proportional gain (U/f)
1
p1291[D]
Vdc controller integral time (U/f)
40 ms
p1292[D]
Vdc controller derivative-action time (U/f)
10 ms
p1294
Vdc_max controller ON level for automatic detection (U/f)
0
Table 6-107 Parameters for vector control
Number
Name
Factory setting
p0210
Device supply voltage
400 V
p1240[D]
Vdc controller configuration (vector control)
1
r1242
Vdc_max controller, switch-on level
- V
p1243[D]
Vdc_max controller, dynamic factor
100%
p1250[D]
Vdc controller proportional gain
1
p1251[D]
Vdc controller integral time
0 ms
p1252[D]
Vdc controller derivative-action time
0 ms
p1254
Vdc_max controller ON level for automatic detection
0
Further information is provided in the parameter list.
6.8.6
Monitoring the driven load
In many applications, the speed and the torque of the motor can be used to determine whether
the driven load is in an impermissible operating state. The use of an appropriate monitoring
function in the converter prevents failures and damage to the machine or plant.
Examples:
● For fans, an excessively low torque indicates a torn drive belt.
● For pumps, insufficient torque can indicate a leakage or dry-running.
● The motor can be blocked by an excessively high torque at a low speed.
Advanced commissioning
6.8 Drive protection
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
415
