Unidrive M/HS Frame 5 to 6 Power Installation Guide 65
Issue Number: 9
Safety information Product information Mechanical installation
Electrical installation
Technical data UL listing information
Table 4-9 Resistor combinations
Thermal protection circuit for the braking resistor
The thermal protection circuit must disconnect the AC supply from the drive if the resistor becomes
overloaded due to a fault. Figure 4-9 shows a typical circuit arrangement.
Figure 4-9 Typical protection circuit for a braking resistor
See Figure 4-1 on page 49 and Figure 4-2 on page 50 for the location of the +DC and braking
resistor connections.
Model
Heavy duty
150 %
Peak power
Braking
voltage
Resistor
Min. value
Resistor
combinations
kW Vdc
05200250 5.5 19 390 19
1 x 20 = 20
2 x 40 = 20 (when
connected in parallel)
05400270 11.0 37
780
38
1 x 40 = 40
2 x 80 = 40 (when
connected in parallel)
05400300 15.0 27 22
1 x 40 = 40
2 x 80 = 40 (when
connected in parallel)
05500030 1.5 384
930 80
1 x 80 = 80
2 x 40 = 80 (when
connected in parallel)
05500040 2.2 263
05500069 4.0 144
06200330 7.5 13.3
390 10
2 x 20 = 10 (when
connected in parallel)
4 x 40 = 10 (when
connected in parallel)
06200440 11.0 9.3
06400350 15.0 27
780 20
1 x 20 = 20
2 x 40 = 20 (when
connected in parallel)
4 x 80 = 20 (when
connected in parallel)
06400420 18.5 22
06400470 22.0 18.4
06500100 5.5 104
930 15
1 x 20 = 20
2 x 40 = 20 (when
connected in parallel)
3 x 40 = 13 (when
connected in parallel)
4 x 80 = 20 (when
connected in parallel)
06500150 7.5 77
06500190 11.0 52
06500230 15.0 39
06500290 18.5 33
06500350 22.0 27
Optional
EMC
filter
Stop
Start /
Reset
Thermal
protection
device
Braking resistor
Drive
Main contactor
power supply
+DC
BR
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