•
The light duty cycle is for brake resistor cyclic use (1 LD pulse in a 120-second period).
The light duty resistor is rated for a 5-second ramp from full power to 0.
•
The heavy duty cycle is for brake resistor cyclic use (1 HD pulse in a 120-second period).
The heavy duty resistor is rated for a 3-second full power braking with a 7-second ramp
to 0.
A
B
P [%]
120
100
80
60
40
20
0
0
1
2
3
4
5
6
7
8
9
t [s]
10
Fig. 31: The LD and HD pulses
A. Light duty
B. Heavy duty
0
0
3 5 10
100
P [%]
t [s]
120
240
123 125 130
Fig. 32: The duty cycles of the LD and HD pulses
Table 28: The minimum resistance and the brake power, mains voltage
380-500 V
Frame
The minimum brake
resistance [Ω]
Brake power* @845 VDC
[kW]
MR8
6.5
109.9
MR9
3.3
216.4
MR10
1.4
400
MR12
2 x 1.4 **
800
TECHNICAL DATA, VACON® 100
VACON · 97
24-HOUR S358 (0)201 212 575 · EMAIL: [email protected]
8
Summary of Contents for 100 INDUSTRIAL
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