MD600 Series Compact AC Drive Hardware Guide-EN-B06.PDF - 第122页
Option ‑121‑ Table 12–17 Selection of braking resistors (three-phase 380 V to 480 V) Struc ture Drive model Applica ble motor (kW) Brak ing unit Specifications of the recommended braking resistor (125% braking torque, 10…
Option
‑120‑
Recommendation for typical braking resistor
Assuming the braking torque of 125%, braking resistor ON time (T
on
) of 10s per braking
cycle, and braking duty cycle (ED%) of 10%, the resistance and power ratings of the
braking resistor are shown in the table below.
Table 12–16 Selection of braking resistors (single-phase 200-240 V)
Struc
ture
Model
Applica
ble
motor
(kW)
Brak
ing
unit
Specifications of
the
recommended
braking resistor
(125% braking
torque, 10% ED,
max. 10s)
Actual braking resistor selection (Inovance
model)
Mini
mum
baking
resist
ance
(Ω)
Braking resistor
model
Resist
ance of
a
single
resistor
(Ω)
Power
of a
single
motor
(W)
Num
ber of
paral
lel
resis
tors
(PCS)
T1
MD600S/A-
2S2R8(B)
0.37
Built-
in unit
(op
tional)
60 W/370 Ω
RXLG-200W-
380RJ-XZ1000-
OE-B
380 200 1 52
MD600S/A-
2S4R6(B)
0.75 110 W/180 Ω
RXLG-400W-
190RJ-XZ1000-
OE-B
190 400 1 52
MD600S/A-
2S7R5(B)
1.5 230 W/90 Ω
RXLG-800W-
100RJ-XZ1000-
OE-B
100 800 1 35
T2
MD600S/A-
2S010(B)
2.2
330 W/60 Ω
RXLG-1500W-
62RJ-XZ1000-
OT-B
62 1500 1 26
Option
‑121‑
Table 12–17 Selection of braking resistors (three-phase 380 V to 480 V)
Struc
ture
Drive model
Applica
ble
motor
(kW)
Brak
ing
unit
Specifications of
the
recommended
braking resistor
(125% braking
torque, 10% ED,
max. 10s)
Actual braking resistor selection (Inovance
model)
Mini
mum
baking
resist
ance
(Ω)
Braking resistor
model
Resist
ance of
a
single
resistor
(Ω)
Power
of a
single
motor
(W)
Num
ber of
paral
lel
resis
tors
(PCS)
T1
MD600S/A-
4T1R6(B)
0.37
Built-
in unit
(op
tional)
60 W/1560 Ω
RXLG-50W-
1560RJ-XZ1000-
OE-B
1560 50 1 69
MD600S/A-
4T2R3(B)
0.75 110 W/770 Ω
RXLG-100W-
770RJ-XZ1000-
OE-B
770 100 1 69
MD600S/A-
4T4R8(B)
1.5 230 W/380 Ω
RXLG-200W-
380RJ-XZ1000-
OE-B
380 200 1 69
MD600S/A-
4T5R5(B)
2.2 330 W/260 Ω
RXLG-300W-
260RJ-XZ1000-
OE-B
260 300 1 69
T2
MD600S/A-
4T9R5(B)
4 600 W/140 Ω
RXLG-600W-
140RJ-XZ1000-
OE-B
140 600 1 41
MD600S/
A‑4T013(B)
5.5 830 W/100 Ω
RXLG-800W-
100RJ-XZ1000-
OE-B
100 800 1 41
Note
● The braking resistance in the above table is under the condition of 125% braking
torque, 10s braking on-time (Ton), and 10% braking duty cycle (ED%).
● For single-phase 200 V to 240 V, the default initial braking voltage of the built-in
braking unit is 370 V. For three-phase 380 V to 480 V, the default initial braking
voltage of the built-in braking unit is 760 V.
● The data in the preceding table is only for reference. You can select the
resistance and power of the braking resistor as required. (Note that the
resistance cannot be lower than the recommended minimum value, whereas the
power can exceed or be equal to the recommended value.) Select the braking
resistor based on the generation power of the motor in the actual system,
system inertia, deceleration time, and potential energy load.
● For systems featuring large inertia frequent braking and requiring short
deceleration time, select a braking resistor with high power and low resistance.
Option
‑122‑
Recommended braking resistor power under different braking conditions
The braking resistor power in the above table is recommended under the condition of
125% braking torque, 10s braking on-time (Ton), and 10% braking duty cycle (ED%).
However, in actual applications, braking conditions vary and cannot be fully summarized
by a single typical condition. The following lists the recommended braking resistor power
for different braking duty cycles and different braking on-time (Ton) at 125% braking
torque for your reference.
Braking
condition
Braking condition Braking resistor power (at 125% braking torque) (kW)
Braking
on-time
Ton/s
Braking
off-time
Toff/s
Braking
duty
cycle
ED%
0.37 0.75 1.5 2.2 4 5.5
3s, 10% ED 3 27 10% 40 90 170 250 460 630
3s, 15% ED 17 15% 60 120 240 360 650 900
3s, 25% ED 9 25% 100 200 390 570 1050 1440
3s, 40% ED 4.5 40% 150 310 610 900 1640 2250
10s, 10% ED 10 90 10% 60 110 230 330 600 830
10s, 15% ED 56.7 15% 70 150 290 430 780 1080
10s, 25% ED 30 25% 110 220 430 640 1150 1590
10s, 40% ED 15 40% 160 320 650 950 1720 2370
20s, 10% ED 20 180 10% 80 160 310 460 840 1150
20s, 15% ED 113.3 15% 90 180 370 540 980 1350
20s, 25% ED 60 25% 120 250 490 720 1320 1810
20s, 40% ED 30 40% 170 350 690 1010 1840 2530
30s, 10% ED 30 270 10% 100 200 410 600 1090 1500
30s, 15% ED 170 15% 110 220 450 660 1200 1650
30s, 25% ED 90 25% 140 280 560 820 1480 2040
30s, 40% ED 45 40% 180 370 740 1080 1960 2700
60s, 10% ED 60 540 10% 170 340 680 1000 1810 2490
60s, 15% ED 340 15% 170 340 690 1010 1840 2530
60s, 25% ED 180 25% 180 370 740 1090 1980 2730
60s, 40% ED 90 40% 210 440 870 1280 2320 3190