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© Munters AB, 2020
6. COMMISSIONING
WARNING
The fan must not be used without first reading and understanding the user manual and becoming
completely familiar with the controls.
6.1 Control devices
This chapter gives instructions on the control devices with which the electrical control panel must be fitted, which shall be
done at the installation stage. At the fitting stage, the installer must set up a control panel complying with the requirements
of standard IEC EN 60439-1 and arrange the wiring of the fan in accordance with the instructions in standards IEC EN
60204-1 and IEC 60364. The electrical circuit of the fan must generally be fitted with the devices indicated in
section 5.3
.
6.2 Instructions for machine use
Switching on and starting up
Before starting the machine:
•
check that all the guards for the hazardous areas are in their correct positions;
•
check that all the electrical safety components are in place and check their effectiveness by activating them;
•
check the presence of the electricity supply.
To start the fan, go through the following procedure:
•
turn the isolator switch to position On;
•
press the fan starter button.
Normal stopping
In the event of necessity the fan can be stopped by operating the relative control device (stop), which shall be installed on
the electrical panel.
Activating this control must cause the fan blade to stop rotating, but does not cause isolation of the power supply: the fan
can be started again by pressing the start button.
In the event that the fan does not need to be used for an extended period of time, the following stop procedure must be
used:
•
operate the stop button
•
operate the emergency stop button;
•
open the main isolator switch (position “0”) on the electrical panel and attach a padlock to the actuator.
WARNING
Interrupting the electricity supply, equivalent to isolating by the operator with the main switch, causes
complete fan shutdown: restoring the electricity supply will not cause any movement in the machine.
Emergency stop
Operating the main emergency stop button causes the fan to stop moving.
The function is controlled by a red mushroom type button on a yellow background, provided with mechanical locking and
release by turning. Operating it causes the instantaneous interruption of the power supply to the electric motor which makes
the rotor turn (uncontrolled shutdown category 0 according to IEC EN 60204-1).
Resetting after stopping
1. Resetting after normal stopping
After normal stopping the operating cycle must be reset by following the procedure described in
section 6.1
.
2. Resetting after emergency stop
After an emergency stop, the operating cycle must be reset by following the procedure described below:
• reset the actuator by which the emergency stop command was given (by turning the relative mushroom
button);
• for an exact reset sequence, refer to the instructions given in section 6.2.
