Service manual

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8 Maintenance
8.1 Routine maintenance
When you use EDS1000 series you must assemble and operate it according to
demand listed in this《service manual》strictly. During run state, temperature,
humidity, vibration and aging parts may affect it. To avoid this, it is recommended
to perform routine inspections.
Table 8-1 Daily inspection items
Period
Inspection
item
Inspection content Criterion
daily periodic
√
Run state
parameter
(1)output current (1)within range of rated value
(2)output voltage (2)within range of rated value
(3)inside temp. (3)temp. increment < 35℃
√
Cooling
system
(1)installing ambient (1)good ventilation, unblocked air-path
(2)local fan (2)rotate normally without abnormal noise
√ Motor
(1)heating (1)no abnormality
(2)noise (2)even
√ Inverter
(1) vibration, heating (1)vibration balanced, proper wind temp.
(2)noise (2) without abnormal sound
(3)fixation of lead, terminal (3)fixed screw don’t loose
√
Run
ambient
(1)temperature, humidity
(1)-10℃~+40℃
40℃~50℃used in lower volume or
execute compulsory heat dissipating
(2)dust, water and leakage (2)no water leakage imprint, no dust
(3)gas (3)no peculiar smell
Recommend to inspect with following instrument:
Input voltage: electric voltmeter； output voltage: rectifying voltmeter；
inputoutput current: pincers ammeter.
8.2 Inspection and replacement of damageable parts
Some component parts in the inverter will be abraded or bear descending
performance for long-term usage，to assure that the inverter can run stably and
reliably, it is recommended to perform defending maintenance and replace
corresponding parts if necessary.
(1) cooling fan
Abnormal noise, even oscillation may take place if the fan have wearingbearing,
aging blade, here replacement of the fan should be considered.