Technical specifications
Kendrion INTORQ | BA 14.0225 | 05/2022
22
¾
If the drive system is operated with a frequency inverter so that the brake will not be de-energized be-
fore the motor is at standstill, AC switching is also possible (not applicable to emergency braking).
¾
The specified engagement times are valid for DC switching with a spark suppressor.
– Circuit proposals: refer to DC switching at mains – fast engagement, Page 39.
Notice
Spark suppressors are available for the rated voltages.
Disengagement time
The disengagement time is the same for DC-side and AC-side switching. The specified disengagement
times always refer to control using Kendrion INTORQ rectifiers and rated voltage.
4.5
Friction work / operating frequency
Friction work
Q [J]
R
Operating frequency S
h
[h ]
-1
1000000
100000
10000
1000
100
10
1
10
100
1000
10000
10
08
06
Fig. 6:
Friction work as a function of the operating frequency
–S
hue
–
1
Q
R
Q
E
S
hmax
In
=
– e
1
Q
Smax
Q
E
=
–S
hue
S
h
The permissible operating frequency S
hmax
depends on the amount of friction work Q
R
(refer to Figure Fric-
tion work / operating frequency, Page 22). At a pre-set operating frequency S
h
, the max. permissible
amount of friction work is Q
Smax
.
Notice
With high speeds of rotation and switching energy, the wear increases, because very high
temperatures occur at the friction surfaces for a short time.
