Mitsubishi Electric 800 Series Instruction Manual (Function page 488

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Use a brake resistor that has resistance and power consumption values higher than the following. Also, the brake resistor must
have a sufficient capacity to consume the regenerative power.
Voltage
Inverter
class
FR-E820-0030(0.4K)
FR-E820-0050(0.75K)
FR-E820-0080(1.5K)
FR-E820-0110(2.2K)
FR-E820-0175(3.7K)
FR-E820-0240(5.5K)
FR-E820-0330(7.5K)
FR-E820-0470(11K)
200 V class
FR-E820-0600(15K)
FR-E820-0760(18.5K)
FR-E820-0900(22K)
FR-E820S-0030(0.4K)
FR-E820S-
0050(0.75K)
FR-E820S-0080(1.5K)
FR-E820S-0110(2.2K)
FR-E840-0016(0.4K)
FR-E840-0026(0.75K)
FR-E840-0040(1.5K)
FR-E840-0060(2.2K)
FR-E840-0095(3.7K)
400 V class
FR-E840-0120(5.5K)
FR-E840-0170(7.5K)
FR-E840-0230(11K)
FR-E840-0300(15K)
FR-E840-0380(18.5K)
FR-E840-0440(22K)
FR-E860-0017(0.75K)
FR-E860-0027(1.5K)
FR-E860-0040(2.2K)
575 V class
FR-E860-0061(3.7K)
FR-E860-0090(5.5K)
FR-E860-0120(7.5K)
*1
The resistance should be 200 Ω or more at 100% ED. The following shows the brake duty when the resistance is less than 200 Ω.
120
Brake duty (% ED)
100
80
60
40
30
20
Set parameters as follows:
• Pr.30 Regenerative function selection = "1"
• Set Pr.70 Special regenerative brake duty according to the amount and frequency of the regenerative driving, and make
sure that the resistor can consume the regenerative power properly.
Minimum resistance
(Ω)
100
80
60
60
40
25
20
13
9
6.5
6.5
100
80
60
60
371
236
205
180
130
94
67
49
36
26
26
350
300
260
190
140
100
FR-E820(S)-0050(0.75K)
(80 Ω at minimum)
30%ED
FR-E820(S)-0030(0.4K)
(100 Ω at minimum)
0
60
80
100
120
Power consumption
(kW)
1.5
1.9
2.5
2.5
3.8
6.1
7.6
11.7
16.9
23.4
23.4
1.5
1.9
2.5
2.5
1.6
2.4
2.8
3.2
4.4
6.1
8.6
11.8
16
22.2
22.2
2.4
2.8
3.3
4.5
6.1
8.5
100% ED (at 200 Ω or more)
140
160
180
200
Minimum brake resistance (Ω)
220
17. (G) Control Parameters
17.8 Regenerative brake selection
11
12
13
14
15
16
17
18
19
20
487

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Fr-e800 seriesFr-e800Fr-e820-0008Fr-e840-0016Fr-e860-0017Fr-e820s-0008 ... Show all

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