Selecting The Master - aldes DFE Série Manuel D'installation Et De Maintenance

3.3.3 Selecting the Master

« Selecting the master » means the determination of which module of the CBr and the RC will "control" the fans,
"controlling" the fans means:
•
If CA mode is chosen (see 4.1.1), to be the master means to control the start/stop of the fans as well as to
select the airflow
•
If LS or CPs mode (see 4.1.2 and 4.1.3), to be the master means to control the start/stop of the fans as well
as to activate/deactivate a different assignment (assignment multiplier).
CBr is master
Control
CBr module is « master »: contact between terminals IN1 and +12Vdc of CBr module is closed.
•
The CBr module allows control of the fans through its inputs.
•
The RC allows to configure and to de visualize all the parameters on the display and with the LEDs,
RC module is « master » contact between terminals IN1 and +12Vdc of CBr module is open.
•
The CBr module is reduced to being an only passive link between the RC and the fans.
•
The RC allows to configure and to visualize all the parameters on the display and with the LEDs
•
The RC controls the fans with the OFF / I / II / III keys
Wiring diagram
The use of this contact enables to switch automatically from RC master to CBr master.
Using this you can for instance:
• Work in RC master and switch in position CBr master to stop automatically the fans (attention, in this case the
inputs K1/K2/K3 on the CBr have to be disconnected from the +12V).
• Work in RC master and switch in position CBr master to activate automatically a sleep value (attention K1/K2/K3
on the CBr has to be properly connected to activate this value).
Visualization
Caution: Use goldplated contact only.
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RC is master
Control
Visualization