Siemens TV Converter Box 611 사용자 설명서
Motor components of the built-in motor and options
3.2 Thermal motor protection
Table 3- 1
Cooling method
Size
Cooling jacket
Integrated cooling
1FW609
X
1FW613
X
1FW615
X
1FW616
X
1FW619
X
1FW623
X
1FW629
X
3.2
Thermal motor protection
3.2.1
Description of the temperature sensors
Temperature sensor
1FW6 stators are equipped with the two temperature monitoring circuits described below
(Temp-S and Temp-F) to protect the stator against excessive thermal stressing and to
monitor the temperature during commissioning and operation:
Temp–S
Two temperature shutdown circuits consisting of PTC thermistor detectors (PTC elements)
are provided for monitoring the motor winding:
● 1 x PTC 130 °C element per phase winding (U, V, and W), i.e. switching threshold at
● 1 x PTC 130 °C element per phase winding (U, V, and W), i.e. switching threshold at
130 °C and
● 1 x PTC 150 °C element per phase winding (U, V, and W), i.e. switching threshold at
150 °C.
The PTC elements of the two temperature shutdown circuits are each connected in series
with a triplet.
The characteristics of the PTC elements comply with DIN VDE 0660 Part 303, DIN 44081,
The characteristics of the PTC elements comply with DIN VDE 0660 Part 303, DIN 44081,
and DIN 44082 (also refer to the subsequent table).
The cable connection is also monitored with PTCs 80 °C on the housing. A PTC 80 °C is
The cable connection is also monitored with PTCs 80 °C on the housing. A PTC 80 °C is
connected to the PTC 130 °C triplet and a PTC 80 °C is connected to the PTC 150 °C triplet
in series.
Function:
Each PTC element has a "quasi-switching" characteristic; i.e. in the vicinity of the rated
Function:
Each PTC element has a "quasi-switching" characteristic; i.e. in the vicinity of the rated
response temperature ϑ
NAT
(switching threshold) the resistance changes suddenly (step
function). As a result of the low thermal capacity and the good thermal contact between the
PTC element and the motor winding, the sensors - and therefore also the system - quickly
respond to inadmissibly high stator temperatures.
1FW6 Built-in torque motors
44
Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7