Er ror ar chi ve re gis ter 70, Hol ding re gis ter 70, Tem pe ra tu re mo ni to ring 70 – Samson Trovis 5100 User Manual
Page 70: 3 temperature monitoring
8.3 Temperature monitoring
The flow temperature and the room temperature can be monitored for any deviations. This func-
tion is activated in Co5 -> Fb20. The controller issues an alarm when:
4
the flow temperature deviates from its set point by more than 10 °C for more than 30
minutes
4
the room temperature falls below its set point by 2 °C for more than 30 minutes
4
the return flow temperature limitation is active for more than 30 minutes.
When one of these conditions occurs, the bit for the associated sensor is set in holding regis-
ter 857. A set bit in holding register HR 857 causes the bit 4 to be set in the error status register
FSR2 (HR 61) and in the error archive register 2 (HR 63) and the error counter (HR 64) is incre-
mented.
Function
WE
Configuration
Temperature monitoring
OFF
Co5 -> Fb20 = ON
Holding register 857
(
appears on the right-hand side of the set bit number)
Number = Bit number in HR
0 1 2 3 4 5 6 7 8 9 10 11 12
VFprim:
Measured value (set point + 10 °C)
RüFprim:
Limitation active
(actual return flow blinks in InF5)
VF1:
Meas. value > (set point +10 °C)
RüF1:
Limitation active
RF1:
Meas. value < (set point – 2 °C)
VF2:
Meas. value > (set point + 10 °C)
RüF2:
Limitation active
RF2:
Meas. value < (set point – 2 °C)
VF3:
Meas. value > (set point + 10 °C)
RüF3:
Limitation active
RF3:
Meas. value < (set point – 2 °C)
VFTW:
Meas. value > (set point + 10 °C)
RüFTW:
Limitation active
(actual return flow blinks in InF4)
70
EB 5179 EN
Operational faults