2 maintenance inspection, Maintenance inspection – Yaskawa Varispeed-656 DC5 System Regen Converter User Manual

Page 20

Advertising
background image

VS-656DC5 Enclosure Installation Manual

18 - 23

6.2 Maintenance Inspection

Perform inspection according to the schedule shown in

Table 6.1

.

Table 6.1: Maintenance Inspection Items

Item

Name

Inspection

Item

Inspection Period

Content

Daily

Monthly

Yearly

Power

ON

Power

OFF

Gen

eral

Bolts/Screws

Electrical Con-
nection

–

Y

–

–

Y

Tighten with
wrench or
screwdriver

Cable

Insulation
Damage

–

Y

–

–

Y

Replace

Protective
Conduit

Electrical Con-
nection

–

Y

–

–

Y

Replace

Bushing,
Insulation
Cover

Damage,
minute Crack-
ing

–

Y

–

–

Y

Repair or
replace.

Mach

in

e

Cutoff
Switch

Smooth Open/
Close Action

–

Y

–

–

Y

Replace

Molding Dam-
age

–

Y

–

–

Y

Circuit
Breaker

Smooth Open/
Close Action

–

Y

–

–

Y

Molding Dam-
age

–

Y

–

–

Y

Convertor
Cooling Fan

Abnormal
Noise/Vibra-
tion

–

Y

–

Y

–

Replace fan.

Excessive
Cumulative
Run Time (20k
hours)

–

Y

–

Y

–

Exchange
Fan (Roof
Installed)

Abnormal
Noise/Vibra-
tion

–

Y

–

Y

–

Excessive
Cumulative
Run Time (20k
hours)

–

Y

–

Y

–

Bu

s

Vertical Bus
Horizontal
Bus

Temperature
Rise

–

Y

–

Y

–

Discover cause.

Insulation
Cover Damage

–

Y

–

–

Y

Repair or
replace.

Loose Bolts

–

–

Y

–

Y

Tighten

Advertising
Popular Brands
Popular manuals