Operating Instructions – MOVIGEAR® SNI-B
207
12
Integrated BW1 braking resistor
Technical data and dimension sheets
12.3 Integrated BW1 braking resistor
The following diagram shows the load capacity per braking operation of the BW1 braking
resistor integrated in MOVIGEAR
®
as standard:
12.3.1 Calculation example
The known values are:
• Average braking power: 144 W
• Brake ramp: 2 s
• 200 brake applications per hour
Calculating energy from the power of the brake ramp:
For the brake ramp of 2 s, you can use brake ramp [3] (0.2 s) in the diagram. Use the
characteristic curve with the shorter brake ramp because a shorter brake ramp means
more braking energy.
The diagram permits 290 J of braking energy for the 0.2 s brake ramp at 200 cycles per
hour. In this case, the required 288 J can be dissipated via BW1.
2393524363
[1] Brake ramp 10 s
[2] Brake ramp 4 s
[3] Brake ramp 0.2 s
c/h cycles per hour
200
300
400
500
600
[J]
[1]
[2]
[3]
0
100
0
10
50
100
200
500
1000
2000
3000
4000
5000
6000
[c/h]
776982283
W
P t
W
W
s
W
J
= ×
=
×
=
144
2
288
P
i
f
kVA
Hz
n
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