Omron SYSDRIVE MX2 SERIES, User Manual

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12 - 12 Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
12-3 Braking Resistor
(Model: 3G3AX-RBA/RBB/RBC )
Precautions for Safe Use
When using the Braking Resistor (Model: 3G3AX-RBA/RBB/RBC) with a 400-V class inverter
or Regenerative Braking Unit (Model: 3G3AX-RBU41/RBU42/RBU43), be sure to connect two
braking resistors of the same model in series. Using the Regenerative Braking Unit with only
one braking resistor connected may cause damage to the braking resistor.
12-3-1 Specifications
Model
Compact type
(Model: 3G3AX-RBA )
Standard type
(Model: 3G3AX-RBB )
Medium capacity type
(Model: 3G3AX-RBC )
1201 1202 1203 1204 2001 2002 3001 4001 4001 6001 12001
Resistance Capacity
[W]
120 200 300 400 400 600 1200
Resistance
[
Ω
]
180 100 50 35 180 100 50 35 50 35 17
Allowable braking
frequency [%]
5 2.5 1.5 1.0 10 7.5 7.5 7.5 10
Allowable
continuous braking
time [s]
20 12 5 3 30 20 10
Weight [kg] 0.27 0.97 1.68 2.85 2.5 3.6 6.5
Error detection
function Built-in thermal (Contact capacity: 240 VAC 2 A max., Minimum
current: 5 mA)
Normally ON (NC contact)
Built-in thermal fuse (No resetting) Built-in thermal relay:
Normally ON (NC con-
tact)
Contact capacity: 240
VAC 3 A (resistance
load)/0.2 A (L load), 36
VDC 2 A (resistance
load)
Ge
neral
sp
ecification
s
Operating
ambient
temperature
−
10 to 50°C
Storage
ambient
temperature
−
20 to 65°C
Operating
ambient
humidity 20% to 90% (with no condensation)
Vibration
resistance
5.9 m/s
2
(0.6 G), 10 to 55 Hz
Location At a maximum altitude of 1,000 m (without corrosive gases or dust)
Cooling
method Self-cooling