Precautions For Insulation Withstand Voltage; And Insulation Resistance Test - Panasonic YP-060PF Operating Instructions Manual

12 Maintenance (continue)
12.2.3 The inspection on overall and peripheral of the cutting machine
Focuse the confirmation on the below mentioned items.
·check if there is any trace of heat generation, such as discoloration, odor and loose connection inside
the machine. If it happens, please fasten them.
·Items which daily spot check cannot be covered.
12.2.4 The inspection on the cable and grounding wire
For output side, base metal side, input side cable and grounding wire, execute confirmation on
inspection for the key points mentioned on the routine inspection chapters and the items which are not
covered on routine inspection.
12.2.5 The inspection and maintenance for consumable parts
· The such part as printed circuit board etc. use relay, of which the "contact" switches the circuit. A certain
electrical and mechanical service life should be considered. The cooling fan and electrolytic capacitor
also have certain service life.
When conducting inspection or maintenance, treat the cooling fan and electrolytic capacitor as
consumable parts as they have a given electrical and mechanical life respectively.
For example, when they are used under the rated specifications, the life of the cooling fan is about 40000
hours, and that of the electrolytic capacitor of YP-100PF is about 102100 hours, YP-060PF electrolytic
capacitor about 68708 hours. Their actual duration depends on how those items are used by customers.
Therefore we cannot take the measurement with how many years and months and please take them as
consumable parts and execute inspection and maintenance.
12.2.6 The replacement of parts
·When replacing the parts inside cutting machine, please ask personnel of the Company's service
distributor to execute in consideration of safety.
·To maintain the performance and function of the product, please be sure to replace parts with genuine
parts of Panasonic cutting machine.
12.3 Precautions for insulation withstand voltage and insulation
resistance test
The withstand voltage test and the insulation resistance measurement shall be performed by service
engineers specified by Panasonic representatives, or educated and/or skilled persons who well
understand and/or who are familiar with cutters and electricity. Performing the withstand voltage test and
the insulation resistance measurement carelessly may damage this unit as the unit is equipped with
semiconductor parts including transistors.
●The matters need attention for sales and service distributor
Before executing insulation withstand voltage and insulation resistance test, you are requested to
execute below mentioned preparation and prepare jumper cables (cross section 1.25 mm
a clip to short-circuit each device.
Operation area
Input power source cable
Output terminal of cutting machine
Machine case grounding wire
Printed circuit board
Main circuit
Note:
After completion of the test, remove all the short-circuited cables for the test and return the disconnected
cables and grounding wire (printed circuit board connector grounding wire) as they were and confirm
again before the installation of machine case and outer cover.
Operation Instruction
Remove input power source cable of the
distribution box, connection terminal of short circuit
cable.
Remove cable connecting the output terminal of
the cutting main circuit exceptant
Use a wire to short circuit across the output
terminals.
Remove all grounding wires connecting with the
machine case inside machine case.
Remove all connectors.
Make the anode and cathode of secondary side
and secondary side diode in main circuit short
circuited, the collector and the emitter of IGBT/Q1
and IGBT/Q2 short circuited.
·Put cutting power switch of power source at "ON"
side.
58
2
approx.) With