aldes TVEC II / VIK micro-watt Manual Del Operador página 14

Not TVEC II/VIK.qxd
PROBLEMS - ERROR MESSAGES
GB
Problems Diagnosis
The fan does Via the disconnecting switch
not start up
Via the thermal magnetic circuit breaker
The converter screen is extinguished (the switch
output voltage is correct)
The converter screen is lit
The fan starts up The converter screen is lit
then stops (from
several seconds
to several days)
The Fan Unit is The fan pressure is lower than 50 Pa
operating but does
not regulate
The fan pressure is greater than 50 Pa but does not
give the required pressure (e.g. 140 Pa)
The pressure passes from high to zero
(e.g. 150 to 0 Pa) by turning the potentiometer
The fan pressure - The converter displays between 10 and 20 Pa
- The fan pressure is high
cannot be changed.
The potentiometer
has no effect.
The converter displays a normal value (e.g. 125)
but this value can only be lowered.
The Fan is operating, Display differs by 000.0
regulates, but does
not display the
pressure
Reset following errors
11/04/06 15:38 Page 14
1.Press the 3 keys
4 2. Press the red button (whilst still pressing on the No 1 keys)
3. The figures flash for several seconds, then display returns to the initial
3
value. Error resetting is now carried out.
2
4. Switch off the fan via the proximity disconnecting switch. Wait till the
converter is discharged. Switch the fan back on via the proximity switch.
1
Solutions
- Check the electrical connections to the switch
Check the input and output voltages on the switch.
- Check the compatibility of the protection current ( I ) with max.
consumed current
- Check current differential greater than 300 mA
- Check the electrical cabling by a Frequency Converter
- Proceed with resetting the errors (see P. 14)
Check the compatibility of the protection current ( I ) with max.
consumed current
- Check current differential greater than 300 mA
- Check the motor wiring
- Proceed with resetting the errors (see P. 14)
- The fan operates in reverse. Switch over 2 of the 3 phases
(U,V,W) under the frequency converter.
- Check the state of and the correct connection of the glassine tube
(inside and outside the box)
- Inside the box, check the electrical connections, from
the pressure sensor to the converter.
- Check that the motor pulley is set to maximum
- The fan is at the end of the pressure curve, the flow rate
is greater than what the fan can supply
- In exhaust (mode) / For air exhaust : Check that the glassine tube
is connected to P2 on the pressure switch.
- In supply (mode) / For air supply : Check that the glassine tube
is connected to P1 on the pressure switch.
- Check the state of and the connections on the glassine tube
(from the retractable pressure terminal on the casing up
to the pressure sensor in the box + electrical connections
of the sensor or converter)
The fan is at the end of the pressure curve:
- Check the conformity of the motorised fan unit
- Check for any abnormal leakage airflows
- Press the high and low arrows on the converter's control
keyboard, and validate the D04 parameter. (permits the display of
the Pid loop return, i.e. the pressure read in the casing)
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