Basic Documentation

10.3.4 Settings for 2-stage frost protection on the air side
Path: … > COMMIS > CONF > X..
Configuration
Display Name Range / comments
LABEL Input identifier Activation of function with assignment of
the FRST value (frost protection) to the
input.
Path: … > PARA > D2
Setting values
Display Name Range Factory setting
TYPE Identification 0-10 (air side, active
DC 0…10 V
= 0…15 °C)
DIG
SET-ON Risk of frost limit
−50…+50 °C
5 °C
XP P-band Xp 1…1000 K 5 K
ACK Fault
acknowledgement
YES (manual
acknowlegement)
YES3 (3x automatic
acknowledgement)
NO
NO
ACTING Control loop with
risk of frost
CTL1, CTL2 CTL1
Path: INFO
Display values
Display Name Comments
FROST Actual value frost
protection
Path: … > COMMIS > TEST
Wiring test
Display Name Positions
FROST Actual value frost
protection
141 / 174
Siemens Universal Controllers RLU2… CE1P3101en
Building Technologies Frost protection (FROST) 29.08.2008