![background image](http://html1.mh-extra.com/html/smc-networks/idf190d-3-cw/idf190d-3-cw_operation-manual_1299708031.webp)
IDX-OM-Y002
Chapter 6
Troubleshooting
IDF60/70/80/90 Series
6.1
Troubleshooting
6-1
Chapter 6 Troubleshooting
6.1 Troubleshooting
Refer to the table below if any abnormality is found. If there is something that is not clear, please turn off the power
supply and contact our service office.
Problem
Possible causes
Action
Air dryer does not
operate and the
running lamp does
not turn on, even
when the switch is
ON.
Power cable is loose or not
connected.
- Connect the cable correctly.
The earth leakage breaker is OFF.
- Please check the earth leakage breaker capacity.
-
- Turn on the earth leakage breaker.
If the earth leakage breaker keeps tripping, please
shut off the power supply and contact our service
office. Insulation failure is possible.
[Option with earth leakage breaker is available (Option
R)]
- The earth leakage breaker is OFF at the time of
shipment. Turn on before starting operation.
- Be sure to solve the problem causing the breaker to
trip before restarting. Restarting without solving the
problem can cause serious incidents.
Incorrect connection of 3-phase
power supply.
- Exchange the order of 2 wires out of the 3 wires (R
phase and T phase) and reconnect them.
External switch for remote
operation has not been turned ON.
- Turn on the switch.
Wiring for remote operation is
loose or keeps coming out.
- Connect the wiring correctly.
The lamp goes off
and the
compressor stops.
Water-cooled condenser is
contaminated.
- Clean the air-cooled condenser.
Facility water supply decreased
because foreign matter has
accumulated in the strainer.
- Inspect the strainer once a month. Remove foreign
matter when it has accumulated.
Facility water temperature is high.
- Decrease facility water temperature by increasing the
cooling capacity of the facility water system.
Compressed air temperature is too
high.
- Improve the ventilation condition of the air
compressor or lower the ambient temperature to
decrease the discharge air temperature of the air
compressor.
- Install an aftercooler after the air compressor to
reduce the temperature.
Large voltage fluctuation.
- Install the power transformer or revise the power
supply for correct voltage.
(Temporarily allowable fluctuation of the power
supply voltage is /-10% of rated voltage)