ABB i-bus FCC/S 1 1 Series Product Manual page 191

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ABB i-bus KNX
Parameters
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7.5.1.7.1.2.5.7.1 Dependent Parameter
Limit temperature
Options:
The value set here specifies the limit temperature that is not allowed to be exceeded (heating) or
dropped below (cooling). If the temperature reaches this value, the control value is immediately set
to 0.
The value set here is compared with the value received via a group object or via one of the physi-
cal device inputs (depending on the option selected, in the Input for temperature limit sensor pa-
rameter).
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7.5.1.7.1.2.5.7.2 Dependent Parameter
Limit temperature hysteresis
Options:
The hysteresis on the limit temperature specifies the value by which the limit temperature must be
dropped below again (heating) or exceeded (cooling) before the controller becomes active again.
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7.5.1.7.1.2.5.7.3 Dependent Parameter
I-proportion on limitation
This parameter is only visible if the PI continuous (0...100 %); PI PWM (On/Off) or PI continuous
(0...100 %) for Fan Coil option has been selected in the Additional-stage heating control value type
parameter.
Options:
This parameter decides what is to happen to the I-proportion on reaching the limit temperature.
• Freeze: The I-proportion is frozen at the actual value. As soon as the controller is active again,
it continues to operate with the same I-proportion as before reaching the limit.
• Reset: The I-proportion is reset to 0. Once the controller becomes active again, the I-proportion
starts at 0.
20...30...50
00.5...01.0...05.0
Freeze
Reset
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 191