Chapter 7
MAINTENANCE AND INSPECTION
This chapter describes the maintenance and inspection items of the inverter.
Contents
7.1 Inspection Interval ·································································································· 7-2
7.2 Daily Inspection ····································································································· 7-3
7.3 Periodic Inspection ································································································· 7-4
7.3.1 Periodic inspection 1--Before the inverter is powered ON or after it stops running········· 7-4
7.3.2 Periodic inspection 2--When the inverter is ON or it is running·································· 7-6
7.4 List of Periodic Replacement Parts ············································································ 7-7
7.4.1 Judgment on service life ·················································································· 7-8
[ 1 ] Measuring the capacitance of DC link bus capacitor in comparison with initial value
at time of shipment ························································································ 7-10
[ 2 ] Measuring the capacitance of the DC link bus capacitor
under ordinary operating conditions ··································································· 7-11
[ 3 ] Early warning of lifetime alarm ········································································· 7-11
7.5 Measuring the Amount of Electricity in Main Circuit ······················································ 7-12
7.6 Insulation Test ······································································································ 7-13
7.6.1 Megger test of main circuit ·············································································· 7-13
7.6.2 Insulation test of control circuit ········································································· 7-13
7.6.3 Insulation test of external main circuit and sequence control circuit ·························· 7-13
7.7 Product Inquiries and Warranty ················································································ 7-14
7.7.1 Inquiry request ······························································································ 7-14
7.7.2 Product warranty ··························································································· 7-14
[ 1 ] Free of charge warranty period and warranty range ·············································· 7-14
[ 2 ] Exclusion of liability for loss of opportunity, etc. ···················································· 7-15
[ 3 ] Repair period after production stoppage, spare parts supply period
(maintenance period) ····················································································· 7-15
[ 4 ] Delivery conditions ························································································ 7-15
[ 5 ] Service description ························································································ 7-15
[ 6 ] Applicable scope of service ············································································· 7-15
To Next Page
Loading...
