Nederman E-PAK 500 - 12 Acronyms and Abbreviations

E-PAK 500EN
34
Table 11-1: Trouble shooting guide
Error Possible cause Solution
Unitstartswithoutanyvalveat
anyworkstationbeingopened.
The PS cable is short-circuited. Disconnect the cable from the starter and use an
ohmmeter across the leads in turn to locate the
fault.
No dust is collected in the
collector bin.
Filtercleaningdoesnotwork. See Chapter ‘9 Maintenance’.
Insignicantowonthewaytotheunit. See‘Lowvacuumorairow’.
Lowvacuumorairow. Depositsorblockageinductsontheway
to the unit.
• Clean the ducts.
• Check the transport velocity.
The duct system is not properly
dimensioned.
Re-dimension the duct system or add an extra
suction source.
Valvesintheductsystemarenotworking. Check the duct system valves.
Theltercleaningdoesnotworkoris
insucient.
Checkthefunctionoftheltercleaning.
Filtercleaningdoesnotwork. Thecompressedairpressureorowistoo
low.
• Adjust the pressure.
• Check the hose dimension.
The solenoid valve is not connected
properly.
Check the valve and air pressure.
The air lines, valve and/or cylinder are
blocked.
• Clean or replace the air lines, valve and/or
cylinder.
• Filter incoming compressed air.
Thecylinderand/orvalvedoesnotwork. Replace the cylinder and/or valve.
Dust is hard to clean, normal cleaning does
notwork.
Contact your nearest authorized distributor or
Nederman for technical advice.
The cleaning interval is too short. Extend the cleaning interval.
12 Acronyms and abbreviations
CAS
Compressed air switch
DIR
Duty/idle relay
DPS
Differential pressure switch
FCR
Filter cleaning relay
NL
Normal litres
PE
Protective earth
PS
Pilot signal
SSR
Start/stop relay
TS
Thermal switch
SSR
Start/stop relay