Fault code

INVT GD20 SPI Input side phase loss

Diagnostic context

What SPI means on INVT GD20

SPI is the GD20 input side phase loss. The manufacturer associates this fault with phase loss or fluctuation of input R,S,T.

Operating context: Start with the manufacturer troubleshooting sequence. Check input power. Check installation distribution.

This diagnostic context is an editorial explanation. The possible causes and recommended checks below are the verified manufacturer troubleshooting content.

Possible causes

  • Phase loss or fluctuation of input R,S,T.

Recommended checks and actions

  • Check input power.
  • Check installation distribution.

Technical source

INVT GD20 Manual EN - P07.27 Current fault type — page 62

INVT GD20 Manual EN - Fault tracking — page 94

Manual tiếng Việt INVT GD20 - Xử lý lỗi — page 83