Industrial Engineer · phase 14 of 16 · noun

Overtemperature

Trip caused when measured drive, heat-sink, or motor temperature exceeds a configured safe limit.

The Explain card

Plain English
An overtemperature trip means a measured temperature, on the heat sink, inside the drive, or from a motor sensor, has gone past its limit. The drive stops before the part is damaged.
Example
A drive in a sealed cabinet on an August afternoon trips on heat sink overtemperature at three in the afternoon, every day. It runs fine the rest of the year.
Why it matters
The trip is almost always the environment, a failed fan, or a clogged heat sink, and almost never the drive itself. Fix the airflow and the trips stop, and replace the drive and the new one trips the same way.
Hook
The drive telling you the cabinet is too hot.

Word knowledge

How the word is built, where it came from, and what it sits beside in memory.

In a sentence

During commissioning, the technician traced an Overtemperature trip to a blocked cabinet filter and restored airflow before restarting the variable frequency drive.

How it is built
  • over- prefix above, beyond, or excessive
  • temperature base the measured degree of hotness
Where it came from
Origin
an English technical compound formed from over- and temperature
Entered the language
20th century
What changed
Temperature developed from a word for proper proportion or condition into a measurable thermal quantity, and the compound became a concise engineering fault term.
How it is spelled
Pattern
The prefix over- joins directly to the base without a hyphen.
Pattern
The base temperature keeps its full spelling in the compound.

Spelled like

  • overcurrent
  • overpressure
  • overvoltage
Broken into chunks
  • over
    • overcurrent
    • overload
    • overvoltage
  • temper
    • temper
    • temperate
    • temperament
What it sits beside

Same subject

Same shape

  • overcurrent
  • overfrequency
  • overpressure
  • overvoltage

drive protection faults

  • Overtemperature
  • overcurrent
  • overvoltage

over- compounds

  • overload
  • overspeed
  • overtravel

Where it sits in the deck

Phase 14: VFD Safety, Faults, and Diagnostics

What a drive does when it trips, what the fault codes are telling you, and how safe torque off stops the motor without killing the panel.

Neighbours in this phase