488830137-iG5A-0-4-22kW-Service-Manual.pdf 

Contents

Chap. 1 Basic Inspection
1) Macrography
2) Load Test
① Power specification and POWER terminal
②POWER terminal wiring
③Load Test
Chap. 2 Inspection order for each Trip
1) OVER CURRUNT TRIP (OCT)
2) GROUND FAULT TRIP (GFT)
3) OVER VOLTAGE TRIP (OVT)
4) LOW VOLTAGE TRIP (LVT)
5) INVERTER OVER LOAD TRIP (IOLT)
6) No Supply Power
Chap. 3 Inspection Standard and Method
1) POWER
2) PIM
3) CPU
4) SPI
5) Inverter Capacity Recognition
6) NTC Detection
7) O/S DOWNLOAD
8) FAN Control 
9) Current Detection
10) GFT Detection
11) MC
12) DB
13) SPS
14) PWM Output
15) GATE DRIVE Power Voltage
16) LV/OV Protection Test
17) VDC Circuit
18) I/O (common)
19) BOARD ASS’Y Layout 
Attachment 1. Parts List 
Attachment 2. Assemble and Disassemble