Siemens SINAMICS G120 CU240B-2 Operating Instructions Manual page 177

Wire-break and short-circuit monitoring via KTY 84
● Wire break: Resistance value > 2120 Ω
● Short circuit: Resistance value < 50 Ω
As soon as a resistance outside this range is measured, A07015 "Alarm temperature sensor
fault" is activated and after the delay time expires, F07016 "Motor temperature sensor fault"
is initiated.
Temperature monitoring via ThermoClick sensor
The ThermoClick sensor responds at values ≥100 Ω. After the ThermoClick sensors has
responded, either alarm A07910 or shutdown with fault F07011 is initiated corresponding to
the setting in p0610.
Parameters to set the motor temperature monitoring with sensor
Table 7- 17
Parameter
P0335
P0601
P0604
P0605
P0610
P0640
*According to EN 60034-6
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Parameters for detecting the motor temperature via a temperature sensor
Description
Specify the motor cooling
0: Self-ventilated - with fan on the motor shaft (IC410* or IC411*) - (factory setting)
1: Forced ventilation - with a separately driven fan (IC416*)
2: Self-ventilated and inner cooling* (open-circuit air cooled)
3: Forced ventilated and inner cooling* (open-circuit air cooled)
Motor temperature sensor type
0: No sensor (factory setting)
1: PTC thermistor (→ P0604)
2: KTY84 (→ P0604)
4: ThermoClick sensor
Motor temperature alarm threshold (factory setting 130°C)
The alarm threshold is the value at which the inverter is either shut down or I
reduced (P0610)
Motor temperature fault threshold (Factory setting: 145℃)
Motor overtemperature response
Determines the response when the motor temperature reaches the alarm threshold.
0: No motor response, only an alarm
1: Alarm and reduction of I
reduces the output speed
2: Fault message and shutdown (F07011)
Current limit (input in A)
Terminal no.
14
15
(factory setting)
max
Functions
7.7 Protection functions
PTC+
KTY anode
ThermoClick
PTC-
KTY cathode
ThermoClick
max
is
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