3product description – Lenze ERBMxxxRxxxW User Manual

Page 34

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3

Product description

Dimensioning conditions

EDKRBM001 DE/EN/FR 5.0

34

l

−H1−Auslegungsbed_Bremswiderst_Bsp

Examples of the evaluation of the condition

The brake resistor cycle t

cyc,RB

= 150 s and the max. total braking

time t

brk,max

= 10 s are given. The braking times t

brk

and the

process cycle t

cyc,Prc

are exemplary.

1010

5050

100100

200200

150150

t

brk

[s]

t[s]

0.5

0.5

1

1

0.5

0.5

1

0.5

0.5

1

0.5

0.5

1

0.5

0.5

t

cy

c,R

B

= 150 s

tt

brk

brk

,max

= 7 s

£

S

tt

brk

brk

,max

= 6.5 s

£

S

S

tt

brk

brk

,max

= 6.5 s

£

1010

5050

100100

200200

150150

t

brk

[s]

t[s]

1

1111

t

cy

c,P

rs

1

1

t

cy

c,P

rs

1

1

t

cy

c,P

rs

1

1

t

cy

c,P

rs

1

11

t

cy

c,P

rs

1

tt

brk

brk

,max

= 10 s

£

tt

brk

brk

,max

= 11 s

³

S

S

ь

ь

ь

ь

ы

ы

tt

brk

brk

,max

= 10 s

£

S

ь

ь

In the above example, the dimensioning condition is observed at
all times. In the example below, the dimensioning condition is
once not observed, which means that the brake resistor selected
is not suitable for the process specified. Use a brake resistor with
a greater power (shorter brake resistor cycle t

cyc,RB

).

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