Yolico YD3000N Series, Инструкция по эксплуатации

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Maintenance and Inspection Maintenance and Inspection
The maintenance period of the Inverter is as follows:
Maintenance Period:Within 18 months of shipping from the factory or within 12 months of being delivered to
the final user, whichever comes first.
Daily Inspection Daily Inspection
Check the following items with the system in operation.
The motor should not be vibrating or making unusual noises.
There should be no abnormal heat generation.
The ambient temperature should not be too high.
The output current value shown on the monitor display should not be higher than normal.
The cooling fan on the bottom of theInverter should be operating normally.
Periodic Inspection Periodic Inspection
Check the following items during periodic maintenance.Always turn OFF the power supply before
beginning inspection. Confirm that the LED indicators on the
front cover have all turnedOFF, and
then wait until at least one minute (or at least three minutes for Invertersof 30kWor more) has elapsed
before beginning the inspection. Be sure not to touch terminals right after thepower has been turned
off. Doing so can result in electric shock.
Periodic Inspections Periodic Inspections
Item
Inspection
External terminals,
mounting bolts bolts,
connectors,
etc.
Cooling fins
PCBs
Cooling fan
Power elements
Smoothing capacitor
Are all screws and bolts tight?
Are connectors tight?
Are the fins dirty or dusty?
Is there any conductive dirt or oil mist on
the PCBs?
Is there any abnormal noise or vibration
or has the total operating time exceeded
20,000 hours?
Is there any conductive dirt or oil mist on
the elements?
Are there any irregularities, such as discoloration
or odor?
Tighten loose screws and bolts firmly.
Reconnect the loose connectors.
Clean off any dirt and dust with an air
gun using dry air at a pressure of 39.2 ×
104 to 58.8 × 104 Pa (4 to 6 kgScm2).
Clean off any dirt and dust with an airgun using
dry air at a pressure of 39.2 ×104 to 58.8 × 104 Pa
(4 to 6 kgScm2).Replace the boards if they cannot
bemade clean.
Replace the cooling fan.
Clean off any dirt and dust with an air
gun using dry air at a pressure of 39.2 ×
104 to 58.8 × 104 Pa (4 to 6 kgScm2).
Replace the capacitor or Inverter.
Periodic Maintenance of Parts Periodic Maintenance of Parts
The Inverter is configured of many parts, and these parts must be operating properly in order to make
full
use of the Inverter functions.Amongthe electronic components, there aresomethat require
maintenance dependingontheir usage conditions.In order to keep the Inverter operating normally
over a long period of time, it is necessary to performperiod inspections and replace parts according to
their service life.Periodic inspection standards vary depending the Inverter’s installation environment
and usage conditions.The Inverter’s maintenance periods are noted below. Keep them as reference.
Part Replacement Guidelines
Part
Cooling fan
Smoothing capacitor
Breaker relays
Fuses
Aluminum capacitors on
PCBs
5 years
5 years
5 years
5 years
Standard Replacement Period
Replacement Method
Replace with new part.
Replace with new part. (Determine need by
inspection.)
Determine need by inspection.
Replace with new part.
Replace with new board. (Determine need
by inspection.)
Note Usage conditions are as follows:
• Ambient temperature: Yearly average of 30°C
• Load factor: 80% max.
• Operating rate: 12 hours max. per day
-
Corrective Procedure
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