User Manual
EM303B General Purpose Inverter
173
See Figure 11-1 for the overall and installation dimensions of remote control case.
130
2
3
8
150
2
5
0
2
1
0
115.5
141
Run
Emergency Stop
Run
Stop
Output Frequency
Acceleration
Deceleration
Figure 11-1 Outlook and Installation Dimensions of Remote Control Case
12.3
Braking Resistor
EM303B (0.75
～
15kW) with an integrated braking unit can be connected to braking resistor
directly for quick stop. Please see Table 11-1 for selecting braking resistor for EM303B.
Table 11-1 Braking Resistor Selection
Inverter Model No.
Motor Power
（
kW
）
MIN Resistor
Resistance(Ω)
Resistor power
(W)
Cable Size
(mm
2
)
EM303B-0R7G /1R1P -3B
0.75
≥360
≥112.5
1
EM303B-1R1G /1R5P -3B
1.1
≥360
≥165
1
EM303B-1R5G /2R2P -3B
1.5
≥180
≥225
1.5
EM303B-2R2G /3R0P -3B
2.2
≥180
≥330
1.5
EM303B-3R0G /4R0P -3B
3.0
≥180
≥450
1.5
EM303B-4R0G /5R5P -3B
4.0
≥90
≥600
2.5
EM303B-5R5G /7R5P -3B
5.5
≥60
≥825
4
EM303B-7R5G /9R0P -3B
7.5
≥60
≥1125
4
EM303B-9R0G /011P -3B
9.0
≥60
≥1350
4
EM303B-011G /015P -3B
11
≥30
≥1650
6
EM303B-015G /018P -3B
15
≥30
≥2250
6
Remarks:
1.
See
User Manual of BR100 Braking Unit
for selecting braking resistor for
EM303B-018~400.
2.
Cables listed in above table refer to the lead cable of single resistor. The DC bus should
be uprated if the resistors are in parallel connection.
3.
Cable should withstand voltage≥AC450V, temperature resistance :105
℃
.
4.
Because there is a resistor limit of power consumption, the longest operation time for
10%ED is 10S (On: 10S/ Off:90S).
