Technical data

6-4 General Information Regarding Technical Data MKE UL/CSA
DOK-MOTOR*-MKE*UL/CSA*-PR01-EN-P
Mechanical characteristic quantities
The maximum permitted speed of the motor. Limiting factors can be
mechanical (centrifugal forces, bearing strain) or electrical (intermediate
current) in nature.
The maximum torque that can be released for approx. 400 ms at peak
current I
max
(guaranteed value; due to error tolerance, can be up to 20%
higher). The maximum torque that can be attained depends on the drive
controller used. Only the maximum torques M
max
that are listed in the
selection lists for the motor/control device combination are valid.
Moment of inertia of the rotor without the brake option. Unit = kgm².
Motor mass without the brake and motor fan options, given in kg.
Duration of the temperature increase to 63% of the final temperature of
the motor housing when the motor is loaded with the permitted S1
continuous torque. The thermal time constant is determined by the
cooling method used.
0%
63%
100%
t/min
Θ
max
T
th
1
~ 5x T
th
Θ
ttherm.fh7
(1): temporal progression of the motor housing temperature
T
end
: final motor temperature
T
th
: thermal time constant
Fig. 6-3: Thermal time constant
Maximum speed n
max
Theoretical maximum torque
M
max
Rotor inertia J
M
Mass m
M
Thermal time constant T
th