47
INSTALLATION
Menu Par.
No.
Nr. dis-
played
Display
Description
Range
Default
setting
UM
Access
type
Category
M2
151
PID Slew
Rate Dn
Defines the speed (in °C/100 ms) with which the
set-point of individual modules is decreased in the
event the primary circuit's set-point is exceeded (if
the value is set to zero, the change is controlled by
the PI of Par. 86 and87 without restrictions).
0…25.5
1
O
Cascade
M2
152
Pwr-
Mode2
Min
Power
Defines the power value (in percentage terms)
against which the average power of all on modules
in cascade operation mode must be compared (Par.
148 = 2).
0…100
20
%
I
Cascade
M2
153
Pwr-
Mode2
Hyster-
esis
Defines the extra power value (in percentage terms)
compared to the average power of all on modules
in cascade operation mode (Par. 148 = 2).
0…100
40
%
I
Cascade
M2
154
Post-
Pump
Period
Defines overrun time in seconds at the end of the
cascade heat demand.
0…255
60
Sec.
I
Cascade
M2
155
Frost
Protec-
tion
Defines the temperature (detected by the primary
sensor) below which the thermal module circulator
and the system circulator (with cascade configu-
ration) activate. If the temperature of the primary
sensor falls another 5 degrees below the value set
by Par. 155, then a request to activate the cascade
is generated. When the temperature of the primary
sensor reaches the value defined by Par. 155 in-
creased by 5 degrees, then the request ceases and
the cascade returns to stand-by mode.
10...30
15
°C
I
Cascade
M3
73
Boiler
Address
Defines the way in which the boiler is managed.
Managing,
Stand-alone,
Dependent
Stand-
alone
I
Cascade
M3
169
Max.
Setp.
Offset
Down
Defines the maximum decrease in the primary cir-
cuit's cascade set-point. Is based on the secondary
circuit's probe reading.
0…40
2
°C
I
Cascade
M3
170
Max.
Setp.
Offset Up
Defines the maximum increase in the primary cir-
cuit's cascade set-point. Is based on the secondary
circuit's probe reading.
0…40
5
°C
I
Cascade
M3
171
Start
Mod.
Delay
Fact.
Defines the time in minutes from the moment the
request is triggered until the activation of the set-
point increases or decreases provided for by Par.169
e 170.
0…60
40
Min.
I
Cascade
M3
176
PID P
Defines the proportional term to change the set-
point of the cascade module based on the second-
ary circuit's temperature.
0…1275
25
O
Cascade
M3
177
PID I
Defines the integral term to change the set-point
of the cascade module based on the secondary
circuit's temperature.
0…1275
1000
O
Cascade
M3
178
PID Slew
Rate Up
Defines the speed (in °C/100 ms) with which the
set-point of individual modules is increased in the
event the secondary circuit's set-point not reached
(if the value is set to zero, the change is controlled
by the PI of Par. 176 and 177 without restrictions).
0…25.5
1
O
Cascade
M3
179
PID Slew
Rate Dn
Defines the speed (in °C/100 ms) with which the
set-point of individual modules is decreased in the
event the primary circuit's set-point is exceeded (if
the value is set to zero, the change is controlled by
the PI of Par. 176 and 177 without restrictions).
0…25.5
1
O
Cascade
M4
98
Appli-
ance
Settings
Supports uploading the values of Par. 92, 93 and 94
from a set of pre-defined rpm values that identi-
fies the boiler type.
1...12
19...22
I
General
M4
97
IO Con-
figura-
tion
Supports uploading the values of Par. from 116
to 128 from a set of pre-defined rpm values that
defines the configuration of the boiler's inputs and
outputs.
1…37
I
General
