Network Device Product Manual
Table Of Contents
- Preface
- Table of Contents
- Chapter 1 Introduction
- Chapter 2 Installation and Wiring
- Chapter 3 Start Up
- Chapter 4 Digital Keypad Operation
- Chapter 5 Parameters
- 5.1 Summary of Parameter Settings
- Group 0 User Parameters
- Group 1 Basic Parameters
- Group 2 Operation Method Parameters
- Group 3 Output Function Parameters
- Group 4 Input Function Parameters
- Group 5 Multi-Step Speed and PLC Parameters
- Group 6 Protection Parameters
- Group 7 Motor Parameters
- Group 8 Special Parameters
- Group 9 Communication Parameters
- Group A PID Parameters
- 5.2 Parameter Settings for Applications
- 5.3 Description of Parameter Settings
- Group 0: User Parameters
- Group 1: Basic Parameters
- Group 2: Operation Method Parameters
- Group 3: Output Function Parameters
- Group 4: Input Function Parameters
- Group 5: Multi-step Speeds and PLC (Process Logic Control) Parameters
- Group 6: Protection Parameters
- Group 7: Motor Parameters
- Group 8: Special Parameters
- Group 9: Communication Parameters
- Group A: PID Control
- 5.1 Summary of Parameter Settings
- Chapter 6 Fault Code Information
- Chapter 7 Troubleshooting
- 7.1 Over Current (OC)
- 7.2 Ground Fault
- 7.3 Over Voltage (OV)
- 7.4 Low Voltage (Lv)
- 7.5 Over Heat (OH)
- 7.6 Overload
- 7.7 Keypad Display is Abnormal
- 7.8 Phase Loss (PHL)
- 7.9 Motor cannot Run
- 7.10 Motor Speed cannot be Changed
- 7.11 Motor Stalls during Acceleration
- 7.12 The Motor does not Run as Expected
- 7.13 Electromagnetic/Induction Noise
- 7.14 Environmental Condition
- 7.15 Affecting Other Machines
- Chapter 8 Maintenance and Inspections
- Appendix A Specifications
- Appendix B Accessories
- Appendix C How to Select the Right AC Motor Drive

Chapter 8 Maintenance and Inspections|VFD-S Series
8-4 Revision August 2008, SE09, SW V2.61
DC capacity of main circuit
Maintenance
Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there is any leakage of liquid,
change of color, cracks or
deformation
Visual inspection
{
Measure static capacity when
required
Static capacity
≥
initial value X 0.85
{
Resistor of main circuit
Maintenance
Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there is any peculiar smell or
insulator cracks due to
overheating
Visual inspection, smell
{
If there is any disconnection
Visual inspection or measure with
multimeter after removing wiring
between +1/+2 ~ -
Resistor value should be within
±
10%
{
Transformer and reactor of main circuit
Maintenance
Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there is any abnormal vibration
or peculiar smell
Visual, aural inspection and smell
{
Magnetic contactor and relay of main circuit
Maintenance
Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there are any loose screws
Visual and aural inspection. Tighten
screw if necessary.
{
Check to see if contacts work
correctly
Visual inspection
{










