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ABB i-bus KNX
3.2.4.3
Parameter window
Direct operation
© 2010 ABB STOTZ-KONTAKT GmbH
Commissioning
This parameter window is visible if in parameter window Fan the option yes
has been selected in the Enable direct operation parameter.
Enable communication objects
"Switch speed x" 1 bit
Options:
no
yes
yes: Three 1 bit communication objects Speed 1, Speed 2 and Speed 3
are enabled.
The Fan Coil Actuator receives a setting telegram via these communication
objects.
Telegram value
1 = fan speed x is switched on
0 = fan speed x is switched off
If several ON/OFF telegrams are received consecutively in a short period of
time at various Fan speed 1-3 communication objects, the value last
received by the fan control is the decisive value.
An OFF telegram to one of the three communication objects Fan speed 1-3,
switches off the fan completely.
Important
The forced operation remains valid and is considered.
The parameterised minimum dwell time in the fan speed for automatic
mode is ignored during manual operation. Accordingly, an immediate
reaction to the manual operation is detected.
The delay time with speed switch over remains active to protect the fan.
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