JUMO 14597 safetyM STB/STW Ex - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual - Manual (Page 98)

8 Configuration level
2013-04-01 92
8.3 Limiter/monitor
Parameter Comment
Value range
(factory setting in
bold)
8.3.1 Device function
Safety temperature limiter
(STB) initial startup:
Regardless of the switching status of the alarm relay
output prior to power failure, the STB remains locked
when power returns.
The purpose of this factory setting is to ensure that the
device will be in a safe switched-off state when the
voltage supply is switched on for the first time.
After this initial startup, the device function can be set
to STB or STW.
STB initial startup, STB,
STW
Safety temperature limiter
STB:
The device must be manually reset using the keypad or
the binary input as soon as the main measured value is
back within the valid range.
Safety temperature monitor
STW:
The device is automatically reset as soon as the main
measured value is back within the valid range.