List of Parameters
Parameters
1-61
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
Description: Defines reaction when motor temperature reaches warning threshold.
Values: 0: No reaction, warning only
1: Warning and Imax reduction (results in reduced output frequency
2: Warning and trip (F0011)
Dependency: Trip level = P0604 (motor temperature threshold) * 110 %
Note: The purpose of motor I2t is to calculate or measure (KTY84) the motor temperature and disable the inverter if the
motor is in danger of overheating.
I2t operation:
The measured motor current is displayed in r0027. The motor temperature in °C is displayed in r0035.
This temperature is derived either from a KTY84 temperature sensor mounted in the motor, or from a calculated
value. The value from the KTY84 is used only when P0601 = 2; in all other cases (including motor temperature sig-
nal lost) the calculated value is used.
The reaction to the warning can be changed from this default using P0610.
Parameter r0035 is particularly useful to monitor if the calculated motor temperature is rising excessively.
Description: Starts the motor temperature identification after power on or start up.
Values: 0: No identification
1: Temperature identification only after power on
2: Temperature identification after every power on
Note: It is necessary to run the motor data identification before using the motor temperature identification. If that wasn't
done the results of the motor temperature identifications are wrong.
Description: Specifies the magnetization time for stator resistance identification.
Note: This parameter will be set as a result of the motor data identification according to the identified rotor time constant
r1913.
Description: Display of the actual identified stator resistance after temperature identification.
p0610[0...2] Motor I2t temperature reaction / I2t temp. reaction
Access level: 3 P-Group: Motor Data type: Unsigned16
Quick comm. NO Active: NO Data set: DDS
Can be changed: T
Min Max Factory setting
0 2 2
p0621[0...2] Motor temp. ident after restart / Mot.temp ident.
Access level: 2 P-Group: Motor Data type: Unsigned16
Quick comm. NO Active: NO Data set: DDS
Can be changed: U, T
Min Max Factory setting
0 2 0
p0622[0...2] Magnetizing time for temp id after start up / Magnet. t temp id
Access level: 3 P-Group: Motor Data type: Floating Point
Quick comm. NO Active: YES Data set: DDS
Can be changed: U, T
Min Max Factory setting
0.000 [ms] 20000.000 [ms] 0.000 [ms]
r0623[0...2] CO: Display for the identified stator resistance / Act. stator resist
Access level: 4 P-Group: Motor Data type: Floating Point
Unit: [Ohm] Data set: DDS
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