General; Atex; Pressure Control; Keypad - Nederman 14527837 Manual Del Usuario

EN Fan Inverter
2.1

General

WARNING!
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WARNING!
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CAUTION!
No parameters in the frequency converter may be adjusted without detailed
knowledge about the consequences.
NOTE! Fan Inverter is to be set to Monitor mode after it is installed to prevent
accidental changes to parameter settings during normal operation, see also
the 'Fan Inverter Installation and Service Manual'.
NOTE! It is important to read the Installation Manual that came with the
product. For more information see the Application Manual that came with the
product. See figure 1(A) and figure 1(B).
2.2

ATEX

WARNING!
An EX motor with a converter supply must be selected for such an application.
According to EN 60079-14, for EX d, EX n and EX tD motors, there shall be a
device for a direct temperature control by embedded temperature sensors
specified in the motor manufacturer's documentation for limiting the surface
temperature of the motor housing. The device electrically disconnects the
motor if the housing becomes overheated.
If the STO and ATEX optional board is installed, see the VACON 100 OPTBJ STO
and ATEX Option Board Safety Manual. See figure 1(C). Contact Nederman for
more information.
3

Pressure Control

Fan Inverter uses an integrated pressure sensor and pressure taps in the duct
work to make the system operate more efficiently by measuring the system
pressure, and adjust the fan speed in order to maintain a constant pressure,
see figures 2,3 and 4. If the system pressure is low, Fan Inverter can increase
its fan speed and vice versa.
4

Keypad

The table below shows the functions of the different Fan Inverter buttons,
see figure 5. Note that certain buttons have more than one function. The
10
Risk of electric shock.
Only a competent electrician may install Fan Inverter.
Dangerous voltages are present when mains supply is connected. Wait at
least 5 minutes after disconnecting the supply before removing the cover of
Fan Inverter or the fan motor.
Risk of personal injury.
The fan starts up automatically after an input voltage interruption if the
Fan Timer or external run command is active. Do not perform any service
without first disconnecting power to the system.
For Nederman fans, the maximum frequency is the fan nominal frequency,
which is either 50 or 60 Hz. Do not exceed the fan's nominal frequency since
it imposes too much mechanical stress on the impeller.
Risk of equipment damage.
Explosion risk.