13
Appendix
13.1 Function block list
Co1: Boiler K1
Fb Function
WE
Anl
Function block parameter
/ Range of values (default setting)
00 Release of boiler K1
OFF 1 to 7 Co1 -> Fb00 = ON: Release K1 depending on position of
mode selector switch and state of BE17 (Frg_K1)
Co1 -> Fb00 = OFF: Release K1 only depending on position
of mode selector switch
01 Operational alarm
K1
ON 1 to 7 Co1 -> Fb01 = ON: Operational alarm over BE2 BM_K1
Co1 -> Fb01 = OFF: Operational alarm after start-up
Function block parameter:
Start-up time for boiler K1 / 0 to 5400 s (0 s)
02 Operating hours
counter K1
OFF 1 to 7 Co1 -> Fb02 = ON: Operating hours counter active
Function block parameter:
Initial value / 0 to 99999 (0 h)
Option:
count: Counting the operating hours
rESEt: Reset operating hours to initial value
Note:
Can only be changed after entering the key number.
03 Boiler sensor KF1
ON 1 to 6 Co1 -> Fb03 = ON: Monitoring with sensor
Co1 -> Fb03 = OFF: Monitoring with thermostat (BE7),
Option:
StEiG: Thermostat closes
FALL: Thermostat opens
Note:
Cannot be deactivated in system Anl 7.
04 Return flow sensor
RüF1
ON 1 to 7 Co1 -> Fb04 = ON: Monitoring with sensor
Co1 -> Fb04 = OFF: Monitoring with thermostat (BE9),
Option:
StEiG: Thermostat closes
FALL: Thermostat opens
05 RüL-RK1
ON
OFF
3, 6, 7
1, 2,
4, 5
Co1 -> Fb05 = ON: Return flow boost continuous control,
Modulation three-step control
Co1 -> Fb05 = OFF: Return flow boost three-step control
Modulation continuous control,
systems Anl 3, 6 and 7 only
Function block parameters:
K
P
(proportional gain) / 0.1 to 99.9 (6)
T
N
(reset time) / 0 to 999 s (120 s)
T
V
(derivative-action time) / 0 to 999 s (0 s)
With Co1 -> Fb05 = OFF additionally:
T
Y
(valve transit time) / 5 to 240 s (120 s)
82
EB 5474 EN
Appendix
