MiravoAC Induction motor
Model a standalone induction motor with run state, electrical loading, thermal drift, runtime health, and fault behavior for protocol clients.
What it is
A general-purpose three-phase AC induction motor, modeled as a standalone asset. Use it wherever you need a rotating electrical load, such as a fan, pump or conveyor drive, without the hydraulic or process coupling of the more specific models.
Used in
Used in water-treatment (flash mixer), commercial-building (AHU supply fans) and backup-power (hall ventilation fan).
What it tracks
| Member | Description |
|---|---|
running | Operating state from the run-command + ramp dynamics. |
speed_feedback | Ramped rotor speed. |
load_factor | Fraction of rated load the motor is pulling. |
current_phase_a | Single-phase current proxy with slip and load coupling. |
power_draw | Electrical power drawn. |
vibration_velocity | RMS velocity that grows with bearing and imbalance faults. |
winding_temp_u / bearing_temp_de | Winding and drive-end bearing temperature. They follow load and rise with faults. |
runtime_hours | Lifetime counter. |
fault_active / active_fault_code | Whether a fault is active, and which one. |
Fault modes
bearing_defect_inner_race: raises vibration and drive-end bearing temperature, after a 20-minute creep (vibration ×1.25, bearing +1.5 °C).rotor_imbalance: vibration and current rise.winding_insulation: winding temperature climbs and current rises.winding_burnout: end-of-life failure, only in thecriticalstage (rate 0.01/h, so it almost always fires within the stage's 500 operating hours). A 20-minute precursor (winding temperature +6 °C, current ×1.1), then speed feedback drops to 0 over 15 s and winding temperature jumps 40 °C:runninggoes false. Production stops. It has no duration: it stays tripped untilResetFault,Maintainormiravo inject --clear.
Key parameters
| Parameter | Default | Unit |
|---|---|---|
rated_rpm | 1750 | rpm |
rated_power_kw | 7.5 | kW |
rated_voltage | 400 | V |
rated_current | 15 | A |
poles | 4 | count |
Use cases
- A fan, pump or conveyor drive where the load model comes from the downstream asset.
- Electrical condition monitoring (current, power, vibration) without process coupling.
- Aging rotating equipment next to newer assets.
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