03.01.2017 • Following the product phase-out of the KTY temperature sensor by manufacturer NXP, SEW-EURODRIVE is now changing over its motors and electronic products to the PK (PT1000) – the new generation of temperature sensors. However, the serviceability and reparability of motors fitted with a KTY is assured for the next ten years.
Temperature sensors have become indispensable as thermal protection for motor windings. For this purpose, SEW-EURODRIVE has been using KTY84-130 sensors for both asynchronous and synchronous motors since 2004. They are positioned in a defined location directly in the motor's winding overhang. The measured values are then processed either in the respective frequency inverter or using a separate evaluation instrument.
In February 2015, manufacturer NXP Semiconductors N.V. announced the product phase-out of the KTY sensor, affecting all motor manufacturers throughout the world. SEW-EURODRIVE thus reacted immediately and approved the new PT1000 temperature sensor (product designation PK) as the successor to the KTY.
The changeover is taking place in phases:
SEW-EURODRIVE has thus successfully ported the non-proprietary temperature detection interface from the KTY84 to the PT1000.
The new PK (PT1000) temperature sensor consists of a platinum semiconductor element with the following characteristics:
Want to know which of our motors are affected by the changeover? And which of our inverters have the appropriate evaluation electronics, allowing operation using the new PK sensor?