Commissioning; Control Devices - Munters EM Serie Manual De Uso Y Mantenimiento

Do not operate the fan with the safety
!
protections removed: safety meshes can
be removed only with specific tools by
qualified technicians when the fan reaches a
complete standstill. The fixing sytems of the safety
protections are not interchangeable with other
devices. Therefore, if for maintenance reasons the
user damages or loses any component, this must
be definetely ordered from the manufacturer as
spare parts and it cannot just be replaced with
other components, even similar, not supplied
by the constructor itself. In this particular event
the manufacturer refuses all responsibility on
consequent damages caused to things and people
and considers any kind of warranty lost.

6. Commissioning

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 'Connection to the
electrical system'.
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.
10
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.
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
'Control devices'.
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);
© Munters AB, 2013