Fb Function
WE
Anl
Comment
Function block parameter/Range of values (default)
12 BA4 dependent on Y3 or
controlling the chiller
OFF
1,
4 to 9
for 7
only
SEQ
Fb12 = ON:
Select:
SEQ
(operation in sequence) /
PAr
(operation in parallel)
Function block parameters with SEQ:
START
(Activation value)/
STOP
up to 100 % (30 %)
STOP
(Deactivation value)/0 % up to
START
(10 %)
Function block parameters with PA:
START MIN
(Minimum activation time)/0, 60 to
3600 sec; (600 sec)
STOP MIN
(Minimim deactivation time) /0, 60 to
3600 sec (600 sec)
STOP
(Deactivate cooling when Y1 >)/0 to 100 %
(50 %)
13 External request for
operation with BE1 and BE4
OFF 0 to 9 Fb13 = ON and operating mode switch at
BE1 = ON, BE4 = OFF: System ON; with start-up
mode, if needed
BE1 = BE4 = OFF: Operation acc. to times-of-use
BE4 = ON: System out of operation
Fb13 = ON and ooperating mode switch at
:
BE1 = ON: Operation according to times-of-use
BE1 = OFF: System out of operation
14 Fan operation feedback to
BE2
OFF 0 to 9 Fb14 = ON:
Function block parameters:
START
(Delay time)/0 to 180 sec (180 sec)
15 System frost protection with
BE3
OFF 0 to 9 Fb 15 = ON: Standard operation or frost protection
dependent on BE3:
BE3 = OFF: Frost protection mode
BE3 = ON: Standard operation
16 Automatic switchover
between summer and winter
ON 0 to 9 Fb16 = OFF: Automatic switchover between summer
time and winter time
17 Selecting sensor type
OFF 0 to 9 Fb17 = ON:Pt100 and Pt1000 sensors, mixed
possible
Fb17 = OFF: Pt100 and PTC sensors, mixed
possible
EB 5477 EN
91
Appendix