Introduction of a new PK temperature sensor (PT1000) to replace the KTY temperature sensors

SEW‑EURODRIVE will soon offer its customers the opportunity to use modern PT1000 temperature sensors for winding temperature analysis. The PT1000 temperature sensors serve as a replacement for the KTY sensors, which were discontinued by the manufacturer, and will be available for selection in numerous SEW‑EURODRIVE products under the option designation "PK."

SEW‑EURODRIVE's product portfolio with the new PK temperature sensor (PT1000)

SEW-EURODRIVE product overview
SEW-EURODRIVE product overview
SEW-EURODRIVE product overview

The KTY84 – 130 temperature sensors have been used since 2004 in numerous motors from SEW‑EURODRIVE to ensure thermal protection of the motor winding. The temperature sensor's measurement values are processed in a frequency inverter or in a separate evaluation unit. In February 2015, NXP officially announced that the KTY temperature sensors would be discontinued. As a replacement, the PK temperature sensor (PT1000) for thermal monitoring of the motor is available immediately from SEW‑EURODRIVE for multiple motor series. Many inverters from SEW‑EURODRIVE are already able to interpret the new temperature sensor's measurement signals.

Your benefits

  • Easy integration of the temperature sensor into the system concept

    using the standardized characteristic curve in accordance with IEC 60751.
  • A smooth switch from KTY to PK (PT1000) is possible

    since the integration takes place simply by modifying the inverter firmware.
  • Worldwide availability of component parts and guaranteed serviceability

    since the sensor can be ordered from multiple manufacturers.
  • The function that allows signals to be evaluated in the inverter

    is integrated by modifying the firmware, thus making hardware changes unnecessary.

Technical data

Comparison of the characteristic curves for the KTY/PK temperature sensors

Comparison of the characteristic curves for the KTY/PK temperature sensors
Comparison of the characteristic curves for the KTY/PK temperature sensors
Comparison of the characteristic curves for the KTY/PK temperature sensors

The new PK temperature sensor (PT1000) consists of a platinum semiconductor element with a characteristic curve that is comparable to that of KTY84 – 130.

Information

Drives with the PK (PT1000) temperature sensor can only be operated on inverters that have appropriate evaluation electronics. SEW-EURODRIVE guarantees the supply availability and serviceability of the discontinued KTY temperature sensors for the next several years; if service is needed, we can offer you a solution.

Overview of the PK temperature sensor's (PT1000) availability

Asynchronous motors

Close table
Series KTY availability Change to PK Date of the change
DRS.. X X As of 08/2016
DRE.. X - -
DRN.. X X As of 08/2016
DRP.. X - -
DRU.. X X As of 08/2016
DRL.. X X As of 08/2016
DRM.. X X As of 08/2016
EDRN.. X X As of 10/2016
DAS.. - - -
DRK.. - - -
We have stored a table for you here.

Synchronous servomotors

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Series KTY availability Change to PK Date of the change
CMP(Z) 40 – 100 X X As of 07/2016
CMP 112 X X Date to be clarified
CM 71 – 112 X X As of 07/2016
CMDV 55 – 162 X - -
DY 71 – 112 X - -
DS 56 X - -
We have stored a table for you here.

Linear technology

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Series KTY availability Change to PK Date of the change
CMSB50 – 71 X X As of 07/2016
CMS71 X - -
SL2 X - -
We have stored a table for you here.

Decentralized drives/mechatronics

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Series KTY availability Change to PK Date of the change
MGF..-DSM1)
MGF2-DSM
MGF4-DSM
MGF4-DSM/XT
X X As of Q3/2017
MOVIGEAR®
MFG2..,MGF4..,
MGF4..,/XT
X X As of Q3/2017
DRC..
DRC1-4
X X As of Q4/2017
CMP…/ELVCD X X as of firmware version 3.5.280.3.1 (Q4/2017)
  1. 1) in connection with an inverter that is in close proximity to the motor or an inverter that is installed in the control cabinet
We have stored a table for you here.

Inverters for control cabinet installation / wall mounting

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Series KTY availability Change to PK Date of the change
MOVITRAC® LTE-B - - -
MOVITRAC® LTE-B+ - - -
MOVITRAC® LTP-B X X Available as of firmware version 1.19 (04/2016)
MOVITRAC® B - - -
MOVIDRIVE® compact
MCV, MCF
- - -
MOVIDRIVE® B X X Available as of firmware version 21 (08/2017)
MOVIAXIS® X X Available as of firmware version 32 (07/2016)
MOVIDRIVE® modular X X Already implemented in all firmware versions
MOVIDRIVE® system X X Already implemented in all firmware versions
We have stored a table for you here.

Inverters for decentralized installation

Close table
Series KTY availability Change to PK Date of the change
MOVIFIT® basic - - -
MOVIFIT® compact - - -
MOVIFIT® classic - - -
MOVIPRO® SDC/ADC X X As of firmware version 16
MOVIMOT® MMD60A X - -
MOVIAXIS® MMD60B X - -
We have stored a table for you here.
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