Siemens SINAMICS G120D Series - Page 173

Advanced commissioning
7.6 Protection functions
Parameter
Description
p0610
Motor overtemperature response
(factory setting: 12)
Determines the behavior as soon as the motor temperature reaches the warning
threshold p0604.
0: Warning (A07910), no fault.
1: Warning (A07910); current limit will be reduced and timer started. Shutdown
with fault (F07011).
2: Warning (A07910); timer is started. Shutdown with fault (F07011).
12: As for 2 but the last shutdown temperature is used to calculate the motor
temperature (factory setting).
p0611
I2t motor model thermal time constant
(factory setting: 0 s)
The parameter is only effective for synchronous motors.
On selecting a motor from the motor list (p0301), the inverter sets up the parameter
value automatically.
p0612
Mot_temp_mod activation
.00 1 signal: Activate motor temperature model 1 (I2t) for permanently excited
synchronous motors
.01
1 signal: Activate motor temperature model 2 for asynchronous motors
.02 1 signal: Activate motor temperature model 3 for 1FK7 encoderless synchro-
nous motors
.09
1 signal: Activate motor temperature model 2 expansions
p0615
Mot_temp_mod 1 (I2t) Interference threshold
(factory setting: 180 °C)
Interference threshold for monitoring the motor temperature in motortemperature
model 1.
After exceeding the interference threshold, the inverter reports fault F07011.
p0621
Identification of stator resistance (Rs) when switched on again
(factory setting: 0)
The inverter measures the current stator resistance and from this calculates the cur-
rent motor temperature as the start value of the thermal motor model.
0:
No Rs identification
1:
Rs identification on first switching on the motor
2:
Rs identification each time the motor is switched on
p0622
Motor excitation time for Rs_ident on switching on again
The inverter sets the parameter value to the corresponding result of the motor data
identification.
p0625
Motor ambient temperature during commissioning
(factory setting: 20 °C)
Motor ambient temperature given in °C at the time of motor data identification.
More information on temperature calculation can be found in function plans 8016 and 8017
and the list manual.
Converter with control units CU240D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
173