Ipiel-la3 Manual Jun 2026

Most users plug the Ipiel-la3 in and expect immediate magic. Resist that urge. The manual highlights a critical first step: Calibration Mode .

If your system emits a beep sequence instead of booting, it is a diagnostic code from the POST (Power-On Self-Test).

| Symptom | Probable Cause (from manual) | Solution | | :--- | :--- | :--- | | | Aux voltage too low or polarity reversed. | Measure terminals X1:1 and X1:2. Check fuse F1 on PCB. | | LCD shows "CT Error" | Broken wire or CT saturation. | Check CT connections; perform a secondary injection test at 110% of rated current. | | Relay does not trip despite current > Is | Blocking logic active (digital input). | Go to Logic > Blockings and check DI status. | | Modbus communication timeout | Wrong parity or slave ID. | Slave ID is set via DIP switches (binary). See page 108. | Ipiel-la3 Manual

This is usually the biggest hurdle for new users.

The original BIOS had limited support for certain CPUs, especially Core 2 Quad processors. If you are upgrading, it is highly recommended to update to the latest version. Most users plug the Ipiel-la3 in and expect immediate magic

Supports 1 GB, 2 GB, and 4 GB (rarely) DDR3 DIMMs. Must be non-ECC, unbuffered.

This is the most referenced section of the . Incorrect wiring leads to nuisance tripping or, worse, failure to trip during a fault. If your system emits a beep sequence instead

The power switch is part of a 9-pin front panel connector. Note that standard 2-pin switches may require careful alignment on the header.

The manual explicitly states: "After a fault, the output relay remains latched until the operator manually acknowledges the condition." To reset: Press the Reset button for 2 seconds, or send a remote reset command via Modbus (write 1 to coil 0x01).