REXROTH MKD025A-144, Manual

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Synchronous Motors MKD General Notes on Technical Data
5-1
DOK-MOTOR*-MKD*******-PR07-EN-P Version7.0 19.05.2004
5 General Notes on Technical Data
5.1 60K and 100K Parameters
The speed-torque curves and the technical data are specified for two
different motor overtemperatures.
These are:
•
60K housing overtemperature
•
100K winding overtemperature
Note: When selecting the technical data, observe the temperatures
specified! The appropriate parameters are identified by
100K
or 60K.
The motor data and characteristic curves are determined using MKD
motors under the following conditions:
•
Environmental temperature approx. 45 °C
•
Insulated structure (aluminum flange)
•
Permissible housing overtemperature
∆
T = 60K
•
If motors with the optional holding brake are concerned, the data are
always specified for motors
with holding brake.
•
Motors with radial shaft sealing ring
The motor data and characteristic curves are determined using MKD
motors under the following conditions:
•
Environmental temperature approx. 40°C
•
Structure not insulated (attachment to steel flange, LxWxH
450x30x350 in size; LxWxH 120x40x100 in case of the MKD041)
•
Permissible winding overtemperature
∆
T =100K
•
If motors with the optional holding brake are concerned, the data are
always specified for motors
with holding brake.
•
Motors with radial shaft sealing ring
Note: The machine accuracy can be negatively affected by an
increased linear expansion during 100K operation. We
recommend to use 60K data when projecting systems.
Structure and measurement of
the 60K characteristic curve
Structure and measurement of
the 100K characteristic curve