INVT CHV Series - Page 115

Maintenance
107
Main inspections Criteria
Items to be hecked
Inspection
content
Frequency Means/methods
Inverter
vibration ⑴
cooling and ⑵
heating
noise ⑶
point ⑴
thermometer
comprehensive
observation
listening ⑵
smooth operation ⑴
without vibration. fa⑵ n
is working in good
condition. Speed and air
flow are normal. No
abnormal heat.
No abnormal noise ⑶
Motor
vibration ⑴
heat⑵
noise ⑶
comprehensiv⑴
e observation
Listening
point ⑵
thermometer
listening ⑶
No abnormal vibration ⑴
and no abnormal noise.
No ab⑵ normal heat.
No abnormal noise. ⑶
Operation status
parameters
power input ⑴
voltage
inverter ⑵
output voltage
inverter ⑶
output current
internal ⑷
temperature
voltmeter ⑴
rectifying ⑵
voltmeter
ammeter ⑶
point ⑷
thermometer
satisfying the ⑴
specification
satis⑵ fying the
specification
satisfying the ⑶
specification
temperature rise is ⑷
lower than 40 ℃