Decastar 150e: Manual

The Decastar 150e manual includes several pages of parameter tables. Here is a digest of the most critical ones:

Before diving into the manual’s contents, it is essential to understand the device. The Decastar 150e is a digital process indicator and controller, typically manufactured by LAUMAS Elettronica, an Italian leader in industrial weighing technology. It is designed for:

The "150e" model is known for its compact DIN size, bright LED display, and modular I/O options. Because of its versatility, the manual is notoriously dense—which is why this breakdown is so valuable. decastar 150e manual


Tip from manual: If you see ERR31 during calibration, check the load cell signal (mV/V) – it is likely too low or too high.


| Fault Code | Display | Likely Cause | Solution | |------------|---------|--------------|----------| | E-01 | OC | Overcurrent at constant speed | Check motor insulation; increase decel time | | E-02 | OU | Overvoltage (DC bus > 400V) | Braking resistor needed or lengthen decel | | E-03 | LV | Undervoltage (input power dip) | Verify mains stability; check L/N connections | | E-04 | OH | Overheat (heatsink > 85°C) | Clean fan; check mounting clearance | | E-05 | SC | Short circuit (U/V/W) | Disconnect motor – if fault remains, replace drive | | E-10 | CE | Communication error (RS485) | Check Modbus wiring and address settings | The Decastar 150e manual includes several pages of

Reset: Press STOP/RESET twice or cycle power after 1 minute.

When your Decastar 150e behaves erratically, the manual’s error code section is your first stop. Below are frequent codes and solutions. The "150e" model is known for its compact

| Error | Meaning | Solution (from manual) | |-------|---------|------------------------| | ERR01 | EEPROM failure | Replace mainboard. Attempt reset via r.St in Tech Menu. | | ERR03 | A/D converter not responding | Check power supply (minimum 12V DC). Check internal ribbon cable. | | ERR05 | Weight exceeds max + 9d | Remove load. Check for mechanical binding. | | ERR08 | Underload (negative overload) | Calibration zero lost. Perform C.IN again. Check load cell wiring (Excitation +/-). | | ERR31 | Calibration weight error | Applied weight < 1% of full scale. Use larger test weight. | | Lo BAT | Low battery (if backup option fitted) | Replace internal battery or connect mains. |

If you see "----" flashing, the ADC is saturated—immediate check load cell input (typically > 3mV/V or broken cable).