Riello Condexa PRO 100, Инструкция по установке, техническому обслуживанию и ремонту, Страница: 82 / 84

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COMMISSIONING AND MAINTENANCE
6.6.3 Par 148 = 2
In this mode the system manages the cascade so that the max-
imum number of modules is on.
This mode is similar to mode 0 apart from the start-up and
shutdown rules.
In this case the rules based on the information illustrated by the
previous graph are still valid, with the following differences (in
any case, always applicable to the "balancing" band only):
To add an additional depending module, the managing module
evaluates whether the sum of the power (calculated on the ba-
sis of the fan speed) of all the active thermal modules is greater
than the product between the number of the active depend-
ing modules increased by one and the minimum power value
(Par 152) increased by a hysteresis value (defined by Par 153). [
Σ
(
P1,P2,…Pn) > (n+1) * (Par 152) + (Par 153)].
To shutdown a depending access, the managing module eval-
uates whether the sum of the power (calculated on the basis of
the fan speed) of all the active thermal modules is less than the
product between the number of the active depending modules
and the minimum power value (Par 152). [
Σ
( P1,P2,…Pn) < (n) *
(Par 152)].
9
We must consider that the percentage of power varies from
a minimum of 1% and a maximum of 100% and therefore,
the parameter values 152 and 153 are not to be taken as the
percentage of absolute power.