ABB i-bus EIB Product Manual page 44

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ABB i-bus EIB / KNX
© 2004 ABB STOTZ-KONTAKT GmbH
Project design and programming
Parameter: "Transmit status response"
This parameter switches the object "Status switch" and defines its function.
The object can have various functions depending on whether the actuator is
controlled via a 1-bit or 1-byte object. The following table provides an
overview:
1-bit (PWM or 2-step)
1-byte (continuous)
Parameter: "PWM cycle time for continuous control"
The interpulse period of the pulse width modulation for continuous-action
control is set here (corresponds to t
For 2-step control (1-bit control), the pulse width modulation is only used in
fault mode, during forced operation and directly after bus voltage recovery.
Parameter: "Position of the valve drive on bus voltage failure"
This parameter sets how the valve drive is triggered on failure of the bus
voltage. The parameterised value is set as the PWM cycle time.
Parameter: "Position of the valve drive on bus voltage recovery"
This parameter sets how the valve drive is triggered after bus voltage
recovery until the first switching or positioning command is received from the
room thermostat. The parameterised value is set as the PWM cycle time.
Object value is identical to the value of the object "Switch".
Setting "0% = OFF, otherwise = ON":
If the valve is fully closed, the object has the value "0",
otherwise it has the value "1".
Setting "current status of the output":
The object value corresponds to the current control of the
valve. If the value is "ON", the valve is open. If the value is
"OFF", the valve is closed.
Please note that this setting may result in an
increased bus load!
in Figure 1).
CYC
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