Watt Drive V3000-015HF, Руководство пользователя

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Explanation of Function
Seite 170 / 180
5.2 Daily inspection and regular inspection
Inspection cycle
Regular
Inspec-ti
on
Parts
Inspection
item
Inspection item Inspection methods Decision standard Meter
Surroundings
Check temperature of
surrounding, humidity,
dust.
Refer to 2.1 Installing.
Temperature range is between
–10 and 40 degrees. No dew
present and humidity is below
90%.
Thermometer,
hygrometer,
recorder
Whole
equipment
Is there abnormal
vibration, abnormal
sound?
By watching, hearing. No trouble.
Whole
Power
voltage Is main circuit voltage
normal?
Measurement of inverter
terminal R, S, T phase
voltage
Within alternating voltage
allowable change. Tester, digital
multi-meter
Whole
(1)Megger check
Between circuit
terminal and earth
terminal
(2)Are all screws
terminals tight?
(3)Is there any sign of
over-voltage?
(4)cleaning
(1)After you remove connector
J61 from inside the inverter
Take out the wiring of
input/output of inverter
main circuit terminal and
control terminal, measure
beween parts shortened
terminal
R,S,T,U, V,W,P,PD,N,RB
and earth terminal with
megger.
(2)Incremental clamping.
(3)Watch. (1)To be over 5M ohm.
(2)(3) No abnormality . DC500V class
megger
Connection
conductor/
electric line
(1)Is there warp in
conductor?
(2)Is there any damage of
coating of wires? (1)(2) By watching (1)(2) No abnormality
Terminals Is there any damage? By watching. No abnormality.
Inverter parts
Converter parts
Resistance check
Between each
Terminal.
Take out connect of inverter,
measure terminal between
R,S,T and P,N, between
U,V,W and P,N with tester x 1
ohm range.
Refer to check method of 5.5
inverter, converter parts. Analog form
tester
Smoothing
capacitor
(1)Is there any liquid?
(2)Does relief valve
come out? Is there
any swell?
(3)Measure of allow-able
static-electricity.
(1),(2) By watching.
(3)Measure with capacity
measure. (1),(2) No abnormality
(3) Over 80% of rated
capacity. Capacity
meter
Relay
(1)Is there abnormal
sound in operation?
(2)Is there damage to
the contacts? (1)By hearing
(2)By watching
(1) No abnormality
(2) No abnormality
Main
circuit
Resistor
(1)Is there any crack,
discoloration of
resistance insulator.
(2)Confirm existance of
breaking of wire. (1)By watching.cementing
resistance. Curl type
resistance.
Take out connection to other
side, measure it with tester.
(1)No abnormality
Error to be within 10% of
Display resistance. Tester , Digital
multi-meter
Control
circuit
Protec-
tion
circuit
Operation
check
(1)Confirm balance of
each output phase
voltage with inverter
single operation.
(2)Operate sequence
protection moving
test. And no
abnormality. (1)Measure inverter output
terminal U,V,W phase
voltage.
(2)Short or open protection
circuit output of inverter.
(1)Phase voltage balance
200v/400v class is within
4V/8V.
(2)On sequence, to operate
abnormality. Digital
multi-meter,
rectification
type voltmeter
Cooling
system
Cooling fan
(1)Is there abnormal
vibration, abnormal
sound?
(2)Is there loosening of
connecting parts? (1)Revolve by hands in the
state of tone-on idle.
(2) By watching. (1)Revolving smooth.
(2)No abnormality.
Display
(1)Is the LED lamp
illuninated?
(2) Cleaning. (1)Lamp indicates lamp on
operator.
(2) Cleaning with cloth. (1)Confirm light.
Display
Meter
Is direction value
Normal? Confirm indication value of
board meter. Satisfy normal value, control
value. Voltage meter,
current meter
Whole
(1)Is there abnormal
signal,abnormal
sound?
(2)Is there any abnormal
odour?
(1)By hearing, feeling,
watching.
(2)Abnormal odour from
overheat, damage etc.
Confirmation. (1)(2) No abnormality.
Motor
Inslated
resistance
(1)Megger check
(terminal collection -
earth terminal)
Remove connection to U,V
and W and disconnect motor
wiring.
(1) To be over 5M ohm.
DC 500V
Megger
(Notes) Life time of the capacitors depends on the ambient temperature.
Da
ily
1
2