Specifications - Omron SYSDRIVE RX Series User Manual

7-3 Options

Specifications

Built-in resistor type (3G3AX-RBU21/-RBU22/-RBU41)
Applicable voltage class
Model
Connection resistance
Operating voltage
ON/OFF
Operation indication
Parallel interlocking
operation function
Internal resistance
Allowable
consecutive ON
time
Allowable
operation cycle
Power
consumption
7
Built-in resistor
overheat protection
Ambient
temperature
Ambient storage
temperature
Humidity
Vibration
Location
Paint color
*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.
7-17
3-phase 200-V class
3G3AX-RBU21
17 Ω min.
ON : 362.5 ± 5 V
OFF: 355 ± 5 V
LED ON (Lit)
5 units max.
120 W, 180 Ω
10 s max.
Cycle 1/10
(ON for 10 s, OFF for 90 s)
Instantaneous 0.73 kW
Short-time rating 120 W
• 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)
-10°C to 50°C
-20°C to 65°C (short-time temperature during transport)
20% to 90% (with no condensation)
2
5.9 m/s (0.6G) 10 to 55 Hz
At a maximum altitude of 1,000 m; indoors (without corrosive gases or dust)
Munselle 5Y7/1 (cooling fan: aluminum ground color)
3G3AX-RBU22
17 Ω min.
120 W, 20 Ω
0.5 s max.
Cycle 1/80
(ON for 0.5 s, OFF for 40 s)
Instantaneous 6.6 kW
Short-time rating 120 W
3-phase 400-V class
3G3AX-RBU41
34 Ω min.
ON : 725 ± 5 V
OFF: 710 ± 5 V
120 W, 180 Ω × 2 in series
10 s max.
Cycle 1/10
(ON for 10 s, OFF for 90 s)
Instantaneous 1.46 kW
Short-time rating 240 W