S&P PDS CONTROL MD M Manual De Instrucciones página 28

5.3. VSD SET-UP
The VSD includes a specifi c programming for pressure differential systems, with a target value of 50Pa, a minimum
speed of 15Hz and a maximum speed of 50Hz, for a 50Hz supply input frequency. The menu structure of the unit is sum-
EN
marized in Fig. 5. Use the front wheel of the VSD to navigate.
If a different pressure differential is required (e.g. 45Pa for lobbies), modify the rPI parameter to the corresponding
value.
The output frequencies for manual control (ON & MIN/MAX) will be determined by the minimum and maximum neces-
sary airfl ows on site, to accomplish the different defi ned criteria.
Simulate a fi re scenario and check the frequencies at which the targets for pressure differential and air velocity are rea-
ched, for the closed and open door scenarios. Modify the LSP parameter for MIN speed and the HSP parameter for MAX
speed as necessary. The ON mode will force the fan to operate at those speeds ignoring the pressure sensor. This way,
fi refi ghters will be able to carry out their tasks without the automatic system fl uctuations, if required. The MIN speed
will also be the one the fan will run at for daily ventilation, in case a weekly schedule is used, for example.
Note: to compensate potential misalignments in the building as time passes, it is important to verify during maintenan-
ce operations that the registered frequencies are still adequate to ensure a good operation of the manual control (ON).
Note: In case a frequency lower than 30% (15Hz for nominal 50Hz, and 18Hz for nominal 60Hz) is required for MIN speed,
the overpressure relief dampers described in the EN 12101-6 will become more relevant, and they must be sized to
release excess pressure that may build-up in the protected space.
A high frequency for MIN speed could result from open doors or windows, or leakage higher than expected, and there-
fore the requirement linked to the higher airfl ow might not be met.
Tabl.9 shows the MYMn menu parameters and recommended values for each base frequency.
Note: in countries with a nominal frequency of 60Hz, pay attention to the fan nameplate. If it is designed to operate at
50Hz, only the supply input frequency (bFr) should be changed to 60Hz. The fan must never operate at a frequency hi-
gher than the nominal frequency indicated on its nameplate. If the fan is designed to operate at 60Hz, some additional
parameters will have to be modifi ed to be within the values defi ned in the settings table (Tabl.9).
It is recommended not to manipulate the equipment beyond what is indicated for the manual operating frequencies
(MIN / MAX), input / output frequencies and pressure differential target (these are marked with an asterisk "*" for
each input frequency in Tabl.9) or to set values outside those defi ned. However, some parameters of the VSD could be
modifi ed to try to help correct possible misalignments on site. This would be done under the responsibility of the insta-
ller. Failure to adhere to these conditions will invalidate the S&P warranty.
To modify the parameters in bold in the settings table, it will be necessary to access the MYMn menu, and change the
FbCd parameter from Start to Stop. Once the modifi cations are fi nished, it must be set back to Start. Otherwise, the
PDS CONTROL MD will remain in a FAULT state.
5.4. VSD FAULT SUMMARY
Tabl.10 details a list of possible VSD error codes. Parameter M008 is read-only and is the reference of the last fault re-
gistered by the VSD. For information, it is important to review this parameter in case of system fault.
In the event of a VSD fault, please contact S&P after-sales service, indicating the error that is displayed.
6. PUTTING OUT OF SERVICE AND RECYCLING
Dismantling and recycling must be carried out by qualifi ed personnel and in compliance with the applicable local and
international regulations in each country.
Disconnect the fan from the power supply network and all associated electrical equipment ensuring that nobody can
start it in the process.
Separate the fan from the network of ventilation ducts and protect the openings to prevent the entry of dirt or other
materials.
Disassemble and eliminate the parts to be replaced according to current national and international standards.
The EC regulations and the commitment that we must acquire in future generations make us recycle materials;
Please do not forget to deposit all the remaining packaging elements in the corresponding recycling containers.
If your device is also labelled with this symbol, do not forget to take the replaced one to the nearest Waste Ma-
nager.
The unit is mainly made up of steel, copper, ferrite, aluminium and plastic. The components must be separated for re-
cycling into the following categories:
• Steel and iron
• Aluminium
• Non-ferrous materials
• Plastics
• Isolating materials
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