92
CASCADE CONNECTION
Menu Par.
No.
Nr. dis-
played
Display
Description
Range
Factory
setting
UM
Access
type
Category
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 Pro-
tection
Defines the temperature (detected by the
primary sensor) below which the thermal
module circulator and the system circula-
tor (with cascade configuration) 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 increased 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 manner with which the thermal
module is addressed.
Managing,
Stand-alone,
Dependent
Stand-
alone
I
Cascade
M3
169
Max.
Setp.
Offset
Down
Defines the maximum decrease in the prima-
ry circuit'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
circuit's cascade set-point. Is based on the
secondary circuit's probe reading.
0…40
5
°C
I
Cascade
M3
171
Start
Mod. De-
lay Fact.
Defines the time in minutes from the mo-
ment the request is triggered until the acti-
vation 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 secondary 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 in-
creased 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 de-
creased 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
97
Model
Allow to set the values of Par. from 116 to 128
through some pre-set values which define
the configuration of the inlets and outlets of
the module.
1...2/8...9
I
General
M2
205
Dep.
Zone
Control
Enables the control of the additional heating
zone managed by the thermal module.
0 = Disabled
1 = Enabled
0…1
0
U
General
