64 Unidrive M/HS Frame 5 to 6 Power Installation Guide
Issue Number: 9
Table 4-8 External brake resistors (40 C ambient) for drive sizes 5 and 6
The brake resistors can be used in a series or parallel to get the required resistance and power
depending on the size of the drive as per Table 4-7. The brake resistor is equipped with a thermal
switch. The thermal switch should be integrated in the control circuit by the user.
The resistor combinations shown in Table 4-9 can be made using one or more brake resistor(s) from
Table 4-8. Pr 10.030, Pr 10.031 and Pr 10.061 should be set as per information provided in Table 4-
8. Refer to description of Pr 10.030, Pr 10.031 and Pr 10.061 in section 4.10.3 Braking resistor
software overload protection on page 66 for more information.
Part
number
Part
desc
Ohmic
value
Pr10.061
Cont
power
rating
Pr10.030
Max. inst
power
rating
ton = 1 ms
Pulse
power
1/120 s
(ED 0.8 %)
Pulse
power
5/120 s
(ED 4.2 %)
Pulse
power
10/120 s
(ED 8.3 %)
Pulse
power
40/120 s
(ED 33 %)
Time
constant
Pr10.031
1220-
2201
DBR,
100 W,
20R, 130
x 68, TS
20 100 W 2.0 MW 2300 W 1000 W 650 W 250 W 20
1220-
2401
DBR,
100 W,
40R, 130
x 68, TS
40 100 W 1.6 MW 1900 W 900 W 610 W 240 W 16
1220-
2801
DBR,
100 W,
80R, 130
x 68, TS
80 100 W 1.25 MW 1500 W 775 W 570 W 230 W 12.5
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