Siemens Sinamics G120 CU240E Operating Instructions Manual page 119

Temperature measurement using a temperature sensor (PTC or KTY 84 sensor)
Parameter
P0003 = 2
P0335 = 0
P0601 = 0
P0604 = ...
P0610 = 2
P0640
Temperature measurement without temperature sensor
This temperature calculation is only possible in the vector control mode (P1300 =
20/21/22/23) and functions by calculating a thermal motor model.
Parameter
P0621 = 1
P0622 = ...
P0625 = 20
Frequency inverter
Operating Instructions, 08.10. 2008, t.b.d.
Description
User access level
2: Advanced
Specify the motor cooling
0: Self-cooling with shaft-mounted fan attached to the motor (factory setting)
1: Separate cooling by means of a separately-driven cooling fan
2: Self-cooling and internal fan
3: Separate cooling and internal fan
Specify the motor temperature sensor
0: No encoder (factory setting; → P0610)
1: PTC thermistor (→ P0604)
2: KTY84 (→ P0604)
Motor overtemperature alarm threshold (0°C ... 220°C, factory setting 130°C)
Enter the alarm threshold for motor overtemperature protection. The shutdown
temperature threshold (alarm threshold + 10 %) is the value at which either the
converter is shut down or I
Response for motor overtemperature I
Defines the behavior as soon as the motor temperature reaches the alarm threshold.
0: No response, alarm only
1: Alarm and reduction of I
2: Fault and shutdown (F0011) (factory setting)
Motor overload factor (entered in % referred to P0305: rated motor current)
Description
Motor temperature measurement after restarting
0: No identification (factory setting)
1: Temperature measurement after the first "motor ON"
2: Temperature measurement after each "motor ON".
Magnetization time of the motor for temperature measurement after starting
automatically as the result of motor data identification)
Ambient motor temperature
Enter the ambient motor temperature in°C at the instant that the motor data is
acquired (factory setting: 20°C).
The difference between the motor temperature and motor environment (P0625) must
lie within a tolerance range of approx. ± 5 °C.
5.8 Motor and inverter protection
is reduced (P0610).
max
t
2
(reduces the output frequency)
max
Functions
(set
119