DAYLIFF SUNVERTER 3, Инструкция по установке и эксплуатации

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6. SERVICE AND MAINTENANCE
6.1 Routine Inspection and Maintenance
Sunverter is affected by ambient temperature, humidity, dust, vibration and internal
device aging. To ensure long term operation a yearly inspection is recommended.
6.2 Requirement of Inspection and Maintenance
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The inspection must be performed by a qualified technician.
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Ensure to cut off power supply of the inverter before carrying out any repair.
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Avoid leaving the metal components in the inverter as they may cause damage to
the equipment.
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Electric insulation test is already carried out on the inverter before leaving the
factory. If it is however necessary to conduct insulation test on the inverter, all the
input and output terminals must be reliably grounded. It is not advisable to
conduct insulation test on single terminal.
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It is not advisable to use the megohmmeter to test the control circuit.
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When conducting insulation test on the motor, dismantle the connection between
motor and inverter.
6.3 Main Points for Inspection and Maintenance
Inspect and maintain as per the table below.
Inspect Frequency Inspection
on Item
Inspection
Parameter
Allowable Standard
Routine
Operating
Environment
Cooling
System
Inverter
Body
Motor
Input & Output
Parameter
1. Temperature
2. Humidity
3. Dust, gas
1.Installation
Environment
2. Radiator
1. Vibration,
Temperature rise
2. Noise
3. Wire, terminal
1. Vibration,
Temperature rise
2. Noise
1. Input voltage
2. Output current
0
1. Temperature<50 C
2. Humidity<90% No dew condensation.
3. No peculiar smell, flammable, explosive
gas
1. Installation environment with good
ventilation
2. Radiator air duct should not been blocked
1. Stable vibration, normal temperature of the
housing
2. No abnormal noise and peculiar smell
3. Fastening screws not loose
1. Steady running and normal temperature
2. No abnormal and non uniform noise
1. Input voltage in the specialized range
2. Output current should be below rated value
√
√
√
√
√
Regular