Delta Electronics VFD-EL manual Keypad

Chapter 6 Fault Code Information and Maintenance

Keypad

			Maintenance
	Check Items	Methods and Criterion		Period
Daily			Half	One
				Year	Year
	Is the display clear for reading?	Visual inspection	{
	Any missing characters?	Visual inspection	{
Mechanical parts
			Maintenance
	Check Items	Methods and Criterion		Period
			Daily	Half	One
				Year	Year
	If there is any abnormal sound	Visual and aural inspection		{
	or vibration
	If there are any loose screws	Tighten the screws		{
	If any part is deformed or	Visual inspection		{
	damaged
	If there is any color change by	Visual inspection		{
	overheating
	If there is any dust or dirt	Visual inspection		{
Main circuit
			Maintenance
	Check Items	Methods and Criterion		Period
			Daily	Half	One
				Year	Year
	If there are any loose or missing	Tighten or replace the screw	{
	screws
	If machine or insulator is	Visual inspection
	deformed, cracked, damaged or
		NOTE: Please ignore the color		{
	with changed color change due
	to overheating or ageing	change of copper plate
	If there is any dust or dirt	Visual inspection		{

Revision August 2008, 2ELE, V1.02 6-7