Maintenance & Inspection; Precautions On Checking And Maintenance; Inspection Items; Periodic Inspection List - Sanken SVCO6 Instruction Manual

10. Maintenance & Inspection

Never touch the internal parts.
Failure to obey may result in electrical shock, personal injury and other dangers.
Careful checking and maintenance are essential to ensure that the general-purpose inverter SVC06 series can operate
correctly with a long service life.

10-1 Precautions on Checking and Maintenance


Capacitors retain a high voltage charge for a while after the power is turned off. Before carrying out
inspection, please firstly make sure that the CHARGE lamp is off, then make sure that the voltage across
terminals P and X is lower than DC30V using a circuit tester.

10-2 Inspection Items


The motor works as expected;

The cooling system is free from any problems (such as abnormal heating);

There is no abnormality at the location of installation; and

There is no abnormal vibration or noise.
Table 10-1 Inspection must be carried out following the periodic inspection list.
Inspection item
Ambient
environment
Power supply
voltage
Appearance
Structural parts
General
Connection
conductors
and wires
Main module
Table 10-1
Inspection details
 Ambient temperature, relative
humidity
 Confirm operating environment
 Power supply voltage of the
inverter is normal.
 No abnormal vibration or noise
 No loosening of bolts
 No deformation or breakage
 No adhesion of dust or dirt
 Megger check
 No loosening of bolts
 No adhesion of dust or dirt
 No deformation or dirt
 No discoloration because of
overheating
 Check resistance between
terminals

Periodic inspection list

Method & Instrument
 Visual inspection, measuring
instrument
 Thermometer & hygrometer
 Measure interphase voltage
of R, S and T input
terminals.
 Use tester and multimeter
 Tighten bolts
 Visual inspection
 Tighten bolts
 Visual inspection
 Visual inspection
 Disconnect the main wiring
of the inverter and measure
each terminal with tester (x1
range)
 Use analog tester
- 300 -
Criteria
 Satisfy standard
specifications
 Satisfy standard
specifications of input
 No abnormal
 No abnormal
 No abnormal
 Refer to Table 10-2 Main
circuit power module
checklist