ABB i-bus KNX Product Manual page 26

ABB i-bus KNX
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
Commissioning
Control mode
Options: - 2-step
- PWM
- Continuous
- FanCoil
This function allows you to specify the mode of control. You can select
"2-step control", "PWM control", "Continuous control" or "FanCoil actuation"
(see also page 87 and following).
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set.
Note: the fan can be set with a push-switch in Fan Coil only. The push-
switch has no function with other control types and fan stage display is
hidden.
Hysteresis
Options: - 0.0 K
- 0.1 K
- 0.2 K
- 0.3 K
- 0.4 K
...
- 1.0 K
...
- 2.0 K
Set a hysteresis value to ensure that the valve does not constantly switch
with each minor under and overshoot when using 2-step control of the
actuator. The hysteresis value lies around the setpoint. For example, if
the setpoint is 21 °C and the hysteresis is 1 K, the room thermostat only
sends an "on" signal at 21.5 °C and an "off" signal at 20.5 °C.
This parameter is only available if "2-step control" is set as the control type.
Invert heating
Options: - Yes
- No
"Invert heating" is used to adjust the direction of control action of the control
value to "de-energised open" or "de-energised closed" valves.
This parameter is only available if "2-step control" is set as the control type.
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