EKOM DK50 4x4VRT/M, User Manual

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TROUBLESHOOTING
03/2021 65 NP-DK50-Nx4VRTM-AD-A-EN-4_03-2021
TROUBLESHOOTING
Risk of electric shock.
Before interfering with the equipment, first disconnect it from the mains (remove
the power socket).
Working with pressurised pneumatic components poses a risk of injury.
Before interfering with the equipment, vent the air tank and the compressed air
system to zero pressure.
Troubleshooting may only be performed by a qualified service technician.
Damage to the safety valve could cause pressure to rise to hazardous levels.
Never adjust a safety valve.
Malfunction Possible cause Solution
Compressor does not
start
Problem with electrical power source Main breaker is off
Power loss
Check mains voltage
Loose terminal in switchboard
– tighten
Check the primary power connection -
replace if damaged
Pressure switch failed
Check terminals and operation of the
pressure switch - replace if damaged
Any of the air pumps
does not start up
(indicator is on)
Loss of power to motor
Check mains voltage
Check the function of the contactor, and
thermal relays - replace if damaged
Loose terminals at the motor terminal
strip - tighten or replace if damaged or
broken
Motor winding shorted, damaged /open
thermal protection/ high ambient
temperature
Replace the motor / decrease the
ambient temperature
Seized up piston or other moving
component (mechanical damage to a
moving part)
Replace damaged parts
Controller malfunction
Check controller operation, check to
ensure software is present - replace if
damaged or upload the correct program
RUN/STOP indicator
is not green
Loss of connection between controller
and expansion module
Check connection
– replace if damaged
Power loss
Check mains voltage
Loose terminal in switchboard
– tighten
Check the primary power connection -
replace if damaged
Problem with electrical power source Main breaker is off
Controller or expansion module
malfunction Replace failed controller or expansion
module
Air pumps switch Air leak in compressed air distribution Check compressed air distribution