Appendix 5. – Bridges in controller as delivered from factory
Bridges are factory inserted to allow test of fan without connecting control cables.
In case of using the fan for smoke and heat extraction,
remove the red bridge 16-17 (fire mode) and connect
controller to fire central up to wiring scheme (10-11 at 3~ controller).
Warning
: removing this bridge without
connecting to fire central and running the fan in fire mode causes no protection is active. Running in fire
mode is allowed only in case of fire or during periodical tests.
For fan speed setting with potentiometer replace bridge 9-10 (6-7 at 3~ controller) and connect potentiometer
(R >= 1kΩ) according to wiring scheme.
For fan speed setting using AN1 input (0-10V): remove bridge 9-10 (6-7 at 3~ controller) and connect 0-10V
input according to wiring scheme.
Replace bridge 18-19 (11-12 at 3~ controller) with start – stop switch.
Controller default setup controls the fan speed with potentiometer or AN1 input.
Using internal regulator for fan speed control requires change of controller setting via MODBUS (see controller
instructions). Using MODBUS for fan speed control requires change of controller setting via MODBUS (see
controller instructions).
Minimum fan speed can be increased in setup via MODBUS.
Maximum fan speed can be decreased in setup via MODBUS.
More about settings please see controller instructions.
1~ controller
3~ controller
