Omron RX Series User Manual page 614

12 Options
External Resistor Type (Model: 3G3AX-RBU23/RBU24/RBU42/RBU43)
Applicable voltage class
Model
Continuous operation
Short-time operation/
Connection
Allowable operation
resistance
cycle/
Allowable continuous
ON time
Operating voltage (ON/OFF)
Operation indication
Maximum number of units for
parallel interlocking operation
Internal power
Protective
module overheat
function
protection
Operating ambient
temperature
Storage ambient
temperature
Operating
Operating ambient
environment
humidity
Vibration resistance
Location
Paint color
*1. To use the braking resistor (3G3AX-RAB/RBB/RBC) for the 400-V class regenerative braking unit, be sure to remove the
built-in resistor and connect two resistors of the same model in series. Using a 400-V class regenerative braking unit with only
a single braking resistor connected may cause damage to the braking resistor.
*2. Use DIP switches to set the number of connected units.
12 - 6
3-phase 200-V class
3G3AX-RBU23
6 Ω min.
4 Ω min.
Cycle 1/5
(ON for 2 min/
OFF for 8 min)
2 min
ON: 362.5 ± 5 V, OFF: 355 ± 5 V
(–5% or –10% setting available)
LED ON (Lit)
2 units
*2
Built-in relay specifications
· Cooling fin temperature: Relay operates at approximately 100°C or higher.
· Contact rating: 240 VAC 3A (R load)
36 VDC 2A (R load)
· Minimum load: 5 VDC 50 mA (R load)
–10 to 50°C
–20 to 65°C
20% to 90% (with no condensation)
2
4.9 m/s (0.5 G), 10 to 55 Hz
At a maximum altitude of 1,000 m (without corrosive gases or dust)
Munselle 5Y7/1 (except for cooling fan with aluminum base color)
High-function General-purpose Inverter 3G3RX-V1 User's Manual (I578-E1)
3G3AX-RBU24
3G3AX-RBU42
4 Ω min. 24 Ω min.
2 Ω min. 10 Ω min.
Cycle 1/5 Cycle 1/10
(ON for 2 min/ (ON for 10 s/
OFF for 8 min) OFF for 90 s)
2 min 10 s
ON: 725 ± 5 V, OFF: 710 ± 5 V
(–5% or –10% setting available)
3-phase 400-V class
*1 *1
3G3AX-RBU43
12 Ω min.
6 Ω min.
Cycle 1/5
(ON for 2 min/
OFF for 8 min)
2 min