ATC-002_Control_Hysteresis_OFF_Behaviour

Validate OFF command behaviour with hysteresis and anti-chatter response.

Execution

Field

Value

Status

pass

Test Type

functional_acceptance

Last Run At

2026-02-28T17:04:15Z

Last Runner

Baseline_Verification

Preconditions

Fan is ON from prior activation and hysteresis parameters are configured in control settings.

Procedure

Drive temperature down in small decrements through the hysteresis band and below the OFF threshold. Record command outputs for each control cycle and check for oscillation near boundaries.

Expected Result

Fan remains stable while inside hysteresis band and transitions OFF only when OFF threshold criteria are met. No ON OFF chatter is observed.

Traceability

Element Type

Referenced Elements

Requirements