Siemens 611 configurationmanual Name Description

Motor components of the built-in motor and options 3.2 Thermal motor protection

Table 3- 2 Technical data for the PTC thermistor triplet (PTC triplet)

Name	Description
Type	PTC triplet (acc. to DIN 44082- M180)
Response temperature	130 °C ± 5 K
(rated response temperature ϑNAT)	150 °C ± 5 K
PTC resistance (20 °C) at the triplet	≤ 3 · 250 Ω (750 Ω), refer to the characteristic
from - 20 °C up to ϑNAT - 20K
Minimum triplet resistance when hot
at T = ϑNAT – 5 K	≤ 3 · 550 Ω (1650 Ω), refer to the characteristic
at T = ϑNAT + 5 K	≥ 3 · 1330 Ω (3990 Ω), refer to the characteristic
at T = ϑNAT + 15 K	≥ 3 · 4000 Ω (12000 Ω), refer to the characteristic
Connected via the SME9x module	Connect the signal cable with connector to the
	SME9x module
Connection via a thermistor motor protection	Signal cable: Connect conductor bk3 or gn and
device	conductor bk4 or ye to an external tripping device
(alternatively)	3RN1013-1GW10 and evaluate via the PLC.
Application	It is mandatory that a PTC triplet is connected in
	order to protect the motor
	against overtemperature. At the very least, the
	Temp-S must be connected with the rated
	response temperature of 130 °C.
Typical characteristic R(ϑ) of a PTC temperature
sensor
Temp-S comprises 3 PTC temperature sensors
connected in series!

37&

1FW6 Built-in torque motors	45
Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7