Technical Data; Definitions; I.9 Technical Data - Kollmorgen Seidel 6SM56 Series Technical Description

General
I.9

Technical data

I.9.1

Definitions

Standstill torque M
The standstill torque can be maintained indefinitely at a speed n=0 min
ambient conditions.
Rated torque M
The rated torque is produced when the motor is drawing the rated current at the rated
speed. The rated torque can be produced indefinitely at the rated speed in continuous
operation (S1).
Standstill current I
The standstill current is the effective sinusoidal current which the motor draws during
standstill to produce the standstill torque.
Rated current I
The rated current is the effective sinusoidal current which the motor draws at the rated
speed in order to produce the rated torque.
Peak current (pulse current) I
The peak current (effective sinusoidal value) should not exceed 4-times the rated current.
The actual value is determined by the peak current of the servo-amplifier which is used.
Torque constant K
The torque constant defines how much torque in Nm is produced by the motor with 1A
r.m.s. current. The relationship is M=I x K
Voltage constant K
The voltage constant defines the induced motor EMF, as a sinusoidal peak value
between two terminals, per 1000 rpm
Rotor moment of inertia J [kgcm²]
The constant J is a measure of the acceleration capability of the motor. For instance, at I
the acceleration time t
Thermal time constant t
The constant t
overtemperature of 0.63 x 105 Kelvin. This temperature rise happens in a much shorter
time when the motor is loaded with the rated current.
Release delay time t
These constants define the response times of the holding brake when operated with the
rated voltage from the digifas® or SERVOSTAR™ servo-amplifier.
14
05.2000
[Nm]
0
[Nm]
n
[A]
0rms
[A]
nrms
0max
[Nm/A]
Trms
[V/1000min
-1
E
from 0 to 3000 rpm is given as:
b
3000 2 ´ p ´ m
t [ ] = s
b
4
M ´ 60 s ´ 10
0
[min]
th
defines the time for the cold motor, under a load of I0, to heat up to an
th
[ms] / Application delay time t
BRH
[A]
T
]
2
with M
´ J
2
´ cm
BRL
Motor series 6SM45..100
Kollmorgen
and rated
-1
in Nm and J in kgcm²
0
[ms] of the brake
0