Maintenance And Inspection Table - Panasonic AAD03011 Instruction Manual

4.Maintenance and inspection table Note) Symbols in the check frequency field have the following meanings
means daily,
Inspection
Inspection details
item
Ambient
Ambient temperature,
humidity, dust,ect.
environment
Whole system Is there any abnormal vibration or noise?
Power Is the main circuit
voltage voltage normal?
1) Check if all fastenings are tight
2) Any indication of overheating
General
on any part?
3) Clean
Connected
1) Are conductor crooked?
electrical
2) Is the cover broken?
conductors and wi r es
Transformer Strange smell?
Terminal blocks Is there any damage?
Transformer Check the resistance
and diode between terminals
1) Are there any liquid leaks?
Smoothing
2) Is the safety valve normal?
capacitor
3) Measure electrostatic capacity.
1) Is the operational noise normal?
Relay
2) Check the state of contact roughness.
1) Are the insulators cracked?
Resistor
2) Are any wires disconnected?
1) Check output voltage
balance between phases
during inverter operation
Operation
without application.
checks
2) Check the protection
and display circuits with
the sequence protection
operation test.
1) Any strange smells or discoloration?
All parts
2) Are any of the connections loose?
Capacitor Any trace of liquid leaks or deformation?
1) Is there any abnormal vibration
Cooling fan or abnormal noise?
2) Are any of the connections loose?
Display unit Are any LEDs not working?
Meter Are all readings correct?
1) Is there any abnormal
vibration or abnormal noise?
General
2) Strange smells?
94
means yearly and, means every two years.
Inspection Inspection
frequency method
See installation
precautions
Vi s ual i n specti o n and audi b l e check Normal
Measure the
input voltage
1) Tighten fastenings
2) Visual inspection
1), 2) Visual inspection
By smell
Visual inspection
Disconnect main circuit
wires and measure at
terminal
1), 2) Visual inspection
3) Using a capacitance
meter
1) Audible check
2) Visual inspection
1), 2) Visual inspection
1) Measure voltage
between output
terminals.
2) Simulate a short-
circuit between the
inverter warning
outputs.
1), 2) Visual inspection
and smell
Visual inspection
1) Audible check
2) Tighten fastenings
Visual inspection
Check indicated value
1),2) Visual, audible
and smell test
Test criteria Instrument
Ambient temperature:
Thermometer
-10 to 50
hygrometer
Humidity: 90% max.
200V
voltmeter
170 253 V AC
1), 2) Normal
1), 2) Normal
Normal
Normal
Ohm meter
1), 2) Normal
Capacitance
3) Minimum 85% of
meter
rated capacity
1), 2) Normal
1), 2) Normal
1) Line output balance
is 4V max.
(400V type is 8V max.)
Rectifier
type
voltmeter
2) The sequence
protection circuit
must function
correctly.
1), 2) Normal
Normal
1), 2) Normal
Normal
Must be within standard Voltmeter
value and control value. Ammeter
1), 2) Normal