Protection Functions; Inverter Temperature Monitoring - Siemens Sinamics G110M Original Instructions Manual

Functions

8.7 Protection functions

Commissioning the torque control
The torque control only functions error-free if, during the basic commissioning, you correctly
set the motor data and performed the motor data identification with the motor in the cold
state.
See also section: Basic commissioning with IOP (Page 98).
Table 8- 14
Parameter
p1300
p0300 ...
p0360
p1511
p1520
p1521
p1530
p1531
Additional information about this function is provided in the parameter list and in function
diagrams 6030 onwards in the List Manual.
8.7 Protection functions
The frequency inverter offers protective functions against overtemperature and overcurrent
for both the frequency inverter as well as the motor. Further, the frequency inverter protects
itself against an excessively high DC link voltage when the motor is regenerating.
8.7.1

Inverter temperature monitoring

The inverter temperature is essentially defined by the following effects:
● The ambient temperature
● The ohmic losses increasing with the output current
● Switching losses increasing with the pulse frequency
Monitoring types
The inverter monitors its temperature using the following monitoring types:
● I
● Measuring the chip temperature of the Power Module (alarm A05006, fault F30024)
● Measuring the heat sink temperature of the Power Module (alarm A05000, fault F30004)
200
The most important torque control parameters
Description
Control mode:
22: Torque control without speed encoder
Motor data is transferred from the rating plate during basic commissioning and calcu-
lated with the motor data identification
Additional torque
Upper torque limit
Lower torque limit
Motoring power limit
Regenerative power limit
t monitoring (alarm A07805, fault F30005)
2
SINAMICS G110M Operating Instructions
Operating Instructions, 04/2015, FW V4.7.3, A5E31298649B AD