Daily And Periodic Inspection - Mitsubishi Electric FR-E500 Instruction Manual
Fr-e500 series transistorized inverter
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Also See for FR-E500:
- Instruction manual (218 pages) ,
- Technical manual (303 pages) ,
- Instruction manual (208 pages)
Table of Contents
5.3.6 Daily and Periodic Inspection
Inspection
Item
Check ambient
Surrounding
temperature, humidity,
environment
dust, dirt, etc.
Check for unusual
Overall unit
vibration and noise.
Power
Check that main
supply
circuit voltage is
voltage
normal.
(1) Check with megger
(2) Check for loose
General
(3) Check for overheat
(4) Clean.
(1) Check conductors
Conductors,
cables
(2) C heck cable sheaths
Terminal
Check for damage.
block
Inverter
module
Check resistance
Converter
across terminals.
module
(1) Check for liquid
(2) Check for safety
Smoothing
capacitor
(3) Measure
Interval
Description
{
{
{
(across main
circuit terminals
and ground
terminal).
screws and bolts.
on each part.
for distortion.
for breakage.
{
leakage.
{
valve projection
and bulge.
electrostatic
capacity.
PROTECTIVE FUNCTIONS
Periodic*
Method
Refer to page 12.
Visual and auditory
checks.
Measure voltage
across inverter
terminals R-S-T (L
L
-L
).
2
3
{
{
(1) Disconnect all
cables from
inverter and
measure across
terminals R (L
{
S (L
), T (L
2
V, W and ground
{
terminal with
megger.
(2) Retighten.
(3) Visual check.
{
(1), (2) Visual
check.
{
{
Visual check
D isconnect cables
from inverter and
m easure across
{
term inals R , S, T-P, N
- +, −), and
(L
, L
, L
1
2
3
across U , V, W -P (+),
N (−) w ith a m eter w ith
a 100 Ω range.
(1), (2) Visual
check.
(3) Measure with
{
capacity meter.
177
Criterion
Ambient
temperature:
-10°C to +50°C
(14°F to 122°F),
non-freezing.
Ambient
humidity: 90%
or less, non-
condensing.
No fault.
Within
permissible AC
(DC) voltage
-
1
fluctuation (Refer
to page 188).
(1) 5MΩ or
more.
),
1
(2), (3) No
), U,
3
fault.
(1), (2) No
fault.
No fault
R efer to page
179.
(1), (2) No
fault.
(3) 85% or more
of rated
capacity.
Instrum ent
Therm om eter,
hygrom eter,
recorder
Meter,
digital
multimeter
500VDC
class
megger
Analog
meter
Capacity
meter
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