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90
Menu Par.
No.
Display visualis-
ation
Description
Range Factory
setting
UM
Access
type
Cate-
gory
M2 80
Max. Setp. Offset
Up
Defines the maximum increase in the primary cir-
cuit's cascade set-point. Is based on the primary
circuit's probe reading.
0…40
5
°C
I
Cas-
cade
M2 81
Start Mod. Delay
Fact.
Defines the time in minutes from the moment the
demand is triggered until the activation of the
set-point increases or decreases provided for by
Par. 79 e 80.
0…60
60
Min.
I
Cas-
cade
M2 82
Next Module Start
Rate
It defines the minimum power for at least one of
the modules in the cascade in order for the next
module to be switched on (if the other conditions
linked to Par. 75 and 77 are met).
10…100
80
%
I
Cas-
cade
M2 83
Next Module Stop
Rate
It defines the maximum power for all the modules
in the cascade in order for the last module on to
be switched off (if the other conditions linked to
Par. 76 and 78 are met).
10…100
25
%
I
Cas-
cade
M2 84
Module Rotation
Interval
It defines the time interval (in days) after which
modules are rotated.
0…30
1
Days
I
Cas-
cade
M2 149
First Module to
Start
Establishes the number of the next module to be
rotated (this value is automatically updated at
each rotation).
1..16
1
I
Cas-
cade
M2 86
PID P
Defines the proportional term to change the
setpoint of the cascade module.
0…1275
50
O
Cas-
cade
M2 87
PID I
Defines the integral term to change the setpoint of
the cascade module.
0…1275
500
O
Cas-
cade
M2 150
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 primary circuit's set-point is not
achieved (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
Cas-
cade
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 and 87 without
restrictions).
0…25.5
1
O
Cas-
cade
M2 152
PwrMode2 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
Cas-
cade
M2 153
PwrMode2 Hys-
teresis
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
Cas-
cade
M2 154
Post-Pump Period Defines overrun time in seconds at the end of the
cascade heat demand.
0…255
60
Sec.
I
Cas-
cade
M2 155
Frost Protection
Defines the temperature (detected by the
primary sensor) below which the thermal module
circulator and the system circulator (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
Cas-
cade
Содержание 20141085
Страница 1: ...Installation Manual Modular system Power Max Box Installation Manual EN...
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