Why does an E-LPRC500 fail to recognize a vehicle until a ground loop activates?

Answered by ANPR AI·Sourced

Short answer

External triggering may be selected.

Explanation

The manual distinguishes virtual-loop video triggering from alarm-input triggering.

Things to check

  • Trigger mode
  • Alarm input
  • Ground-loop signal

What to do

Use the intended video trigger or verify the external sensor signal and wiring.

Source

ZKTeco E-LPRC500 user manual

Scope and version

Manufacturer regional manual, 2025; search-indexed text checked. Direct PDF retrieval unavailable during this research.

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