Siemens SINAMICS G115D Operating Instructions Manual page 289

Pt1000 sensor
Using a Pt1000 sensor, the converter monitors the motor temperature and the sensor itself
for wire breakage and/or short-circuit:
• Temperature monitoring:
Using a Pt1000 sensor, the converter evaluates the motor temperature in the range from -
48 °C ... +248 °C.
You set the temperature for the alarm and fault thresholds using parameters p0604 and
p0605.
– Overtemperature alarm (A07910):
– Overtemperature fault (F07011):
• Sensor monitoring (A07015 or F07016):
– Wire-break:
– Short-circuit:
Setting parameters for the temperature monitoring
Parameter
p0335[0...n]
p0601[0...n]
p0604[0...n]
p0605[0...n]
SINAMICS G115D distributed drive
Operating Instructions, 12/2020, FW V4.7 SP13, A5E48681219B-002
6.22 Motor temperature monitoring using a temperature sensor
- motor temperature > p0604 and p0610 = 0
The converter responds with a fault in the following cases:
- motor temperature > p0605
- motor temperature > p0604 and p0610 ≠ 0
The converter interprets a resistance > 2120 Ω as a wire-break and outputs the alarm
A07015. After 100 milliseconds, the converter changes to the fault state with F07016.
The converter interprets a resistance < 603 Ω as a short-circuit and outputs the alarm
A07015. After 100 milliseconds, the converter changes to the fault state with F07016.
Description
Motor-cooling method
Motor temperature sensor type
Mot_temp_mod 2/KTY alarm
threshold [°C]
Mot_temp_mod 1/2/sensor
threshold and temperature value
[°C]
Advanced commissioning
Setting
Sets the motor cooling system used.
0: Natural cooling - with fan on the motor shaft
(factory setting)
1: Forced ventilation - with a separately driven fan
2: Liquid cooling
128: No fan
Sets the sensor type for the motor temperature
monitoring.
0: No sensor (factory setting)
1: PTC
2: KTY84
4: Temperature switch
6: Pt1000
Sets the alarm threshold for monitoring the motor
temperature of motor temperature model 2 or
KTY/Pt1000.
Factory setting: 130
Sets the threshold and temperature value to mon-
itor the motor temperature.
Factory setting: 145
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