Lenze EMB9351-E Betriebsanleitung Seite 78

5 Dimensioning
Calculate max. running time for brake chopper and brake resistor
I
rated
t
on
0
1
Brake resistance R
+
t
on,max
t
on,max
t
off
RB
U
P
Q
The data can be obtained from the documentation for the brake resistor
Brake resistance R
) t
t
on,max
t
on,max
t
off
78
Rated current EMB9352, mean arithmetic value
Running time
Max. running time for brake resistance <R
Condition: t + t
on
Max. running time for brake resistance ³R
Depending on the technical data of the brake resistor
³ R
: Calculate running time and dead time
B B,lim
@ R
Q
B B
2
U
max
Maximum running time in s
Dead time in s
Brake resistance in W
Max. operating voltage in V
max
Rated power in W
rated
Heat in Ws
B
< R : Condition for the running time and dead time
B B,lim
+ 3 s
off
Maximum running time in s
Dead time in s
B,lim
= 3 s
off
B,lim
Q
+ B * t
t
off
P
N
l
on,max
EDBMB935X DE/EN/FR 12.0