Figure3-6 PTC triplet
Note
Shutdown time
If Temp‑S responds, and its response threshold is not undershot again in the meantime, then the
drive system must shut down (de-energize) the motor within 2 seconds. This prevents the motor
windings from becoming inadmissibly hot.
NOTICE
Motor destroyed as a result of overtemperature
The motor can be destroyed if the motor winding overheats.
• Connect Temp‑S.
• Evaluate Temp‑S.
• Ensure that the shutdown time is not exceeded.
Note
No temperature monitoring with Temp-S
As a result of their non-linear characteristic, PTC temperature sensors are not suitable for
determining the instantaneous temperature.
No direct connection of the temperature monitoring circuit
WARNING
Risk of electric shock when incorrectly connecting the temperature monitoring circuit
In the case of a fault, a Temp‑S circuit does not provide safe electrical separation with respect
to power circuits.
• Use, for example, the TM120 or the SME12x to connect the Temp‑S temperature monitoring
circuit. You therefore comply with the directives for safe electrical separation according to
DINEN 61800‑5‑1 (previously safe electrical separation according to DINEN50178).
Description
3.4Design
Naturally-Cooled 1FN3 Linear Motors
Operating Instructions, 06/2023, A5E52220465B AB 45
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