IDU is an intelligent fault diagnosis device with passive grounding . By advanced detecting principle, the singlechip microcomputer can monitor the insulation and short circuit status of positive and negative buses real-time ,send alarm signal and transfer detecting data to BMS through internal CAN bus line.

Main functions and features
Technical characteristics and performance index:
High detecting precision
Real-time detecting
detect simultaneous ground of positive and negative buses lines
Detecting range of insulation resistance: 10K-200K
Measuring precision
Bus voltage: ≤ ± 0.5%
Insulation resistance: ≤ ± 0.5%