Nederman E-PAK 150 DX Manual De Instrucciones página 46

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E-PAK 150 DX/300 DX/500 DX
Error
Unit starts without any valve at
any workstation being opened.
Control filter pressure switch is
triggered.
No dust is collected in the
collector bin.
Low vacuum or air flow.
Filter cleaning does not work.
Explosion relief panel sensor
was triggered.
46
Table 12-1: Trouble shooting guide
Possible cause
The PS cable is short-circuited.
The control filter is blocked.
The Ø 6 mm hoses to the pressure switch are
blocked or damaged.
The pressure switch and/or filter are not
connected properly.
The pressure switch is set too low.
The pressure switch is broken.
Filter cleaning does not work.
Insignificant flow on the way to the unit.
Deposits or blockage in ducts on the way to the
unit.
The duct system is not properly dimensioned.
Valves in the duct system are not working.
The filter cleaning does not work or is
insufficient.
The compressed air pressure or flow is too low.
The solenoid valve is not connected properly.
The air lines, valve and/or cylinder are blocked.
The cylinder and/or valve does not work.
Dust is hard to clean, normal cleaning does not
work.
The cleaning interval is too short.
The explosion relief panel has opened due to a
dust explosion in the filter.
The sensor is not positioned correctly.
The sensor is not connected properly.
The sensor is broken.
Solution
Disconnect the cable from the starter and use an ohmmeter
across the leads in turn to locate the fault.
Turn off the fan and check that the yellow fault indicator light
goes out. If not, the pressure sensor is broken or the air lines
blocked.
Replace the control filter.
Check the main filter for damage.
Clean or replace the hoses.
Check the connections.
Increase the setting (default: 4 kPa (0.58 PSI)).
Replace.
See Chapter 10 Maintenance.
See 'Low vacuum or air flow'.
Clean the ducts.
Check the transport velocity.
Re-dimension the duct system or add an extra suction source.
Check the duct system valves.
Check the function of the filter cleaning.
Adjust the pressure.
Check the hose dimension.
Check the valve and air pressure.
Clean or replace the air lines, valve and/or cylinder.
Filter incoming compressed air.
Replace the cylinder and/or valve.
Contact your nearest authorized distributor or Nederman for
technical advice.
Extend the cleaning interval.
Follow dust explosion and fire procedures.
Test and position it correctly.
Check the connections.
Replace.
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E-pak 300 dxE-pak 500 dx

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