Siemens SIMOCODE pro

Safety and commissioning information for EEx areas
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03
F-5
F.2.2 SIMOCODE pro with thermistor input
For the 3UF70, you can use type A temperature sensors with a
characteristic curve according to IEC 60947-8 (DIN VDE 0660, Part 303), DIN
44081 and DIN 44082.
Depending on the number of sensors, this will result in the following
tripping and restart temperatures:
Fig. F-2: Typical characteristic curve of a type A sensor (logarithmic scale)
Depending on the number of sensors, the following tripping and restart
temperatures will result based on the TNF (rated response temperature of
the sensor):
Table F-1: Tripping and restart temperatures
The temperatures listed are limit values.
Notice
Set the response for the activated thermistor to "Tripping"!
Tripping temperature Restart temperature
3 sensors TNF + 4 K TNF - 7 K
6 sensors TNF - 5 K TNF - 20 K