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7-17
7-3 Options
7
Speci
fications
Specifications
Built-in resistor type (3G3AX-RBU21/-RBU22/-RBU41)
*1 When using a braking resistor (model 3G3AX-RAB/-RBB/-RBC) for a 400-V-class regenerative braking unit,
disconnect the built-in resistor and connect two of the same size braking resistors in series.
Damage may occur to a 400-V-class regenerative braking unit if operated with only one braking resistor con-
nected.
*2 Set up using DIP switch.
*3 Built-in resistors are equipped with thermal fuses.
If the alarm is not connected, the fuse may blow to prevent burnout due to overheating.
If the fuse blows, the built-in resistor will need to be replaced.
Applicable voltage class
3-phase 200-V class
3-phase 400-V class
Model
3G3AX-RBU21
3G3AX-RBU22
3G3AX-RBU41
Connection resistance
17
Ω
min.
17
Ω
min.
34
Ω
min.
Operating voltage
ON/OFF
ON : 362.5 ± 5 V
OFF: 355 ± 5 V
ON : 725 ± 5 V
OFF: 710 ± 5 V
Operation indication
LED ON (Lit)
Parallel interlocking
operation function
5 units max.
Bu
ilt-
in
re
si
sto
r
Internal resistance
120 W, 180
Ω
120 W, 20
Ω
120 W, 180
Ω
× 2 in series
Allowable
consecutive ON
time
10 s max.
0.5 s max.
10 s max.
Allowable
operation cycle
Cycle 1/10
(ON for 10 s, OFF for 90 s)
Cycle 1/80
(ON for 0.5 s, OFF for 40 s)
Cycle 1/10
(ON for 10 s, OFF for 90 s)
Power
consumption
Instantaneous 0.73 kW
Short-time rating 120 W
Instantaneous 6.6 kW
Short-time rating 120 W
Instantaneous 1.46 kW
Short-time rating 240 W
Built-in resistor
overheat protection
• Cooling fin temperature
Relay operates at approximately 200
°
C or higher.
Recovers at approximately 170
°
C or lower.
• Rating of contact 250 V AC 200mA (R load)
12 V DC 500mA (R load)
42 V DC 200mA (R load)
• Minimum load
1mA (R load)
Ope
rating en
vi
ronmen
t
Ambient
temperature
-10
°
C to 50
°
C
Ambient storage
temperature
-20
°
C to 65
°
C (short-time temperature during transport)
Humidity
20% to 90% (with no condensation)
Vibration
5.9 m/s
2
(0.6G) 10 to 55 Hz
Location
At a maximum altitude of 1,000 m; indoors (without corrosive gases or dust)
Paint color
Munselle 5Y7/1 (cooling fan: aluminum ground color)
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Page 108: ......
Page 324: ......
Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
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Page 437: ...Index ...
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