WSTECH APS Series - Page 32

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Description
APS-Series 120 Operating Instructions v320 EN
Page 32 of 213
The following options are available for two APUs (APU 1-2 and/or APU 3-4):
• Insulation monitoring:
o Internal
o External
o Positive grounding
o Negative grounding