Omron RX2 Series User Manual page 704

11 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 paral-
lel interlocking operation
Internal power mod-
Protective
ule overheat protec-
function
tion
Operating ambient
temperature
Storage ambient tem-
perature
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.
11 - 6
3-phase 200-V class
3G3AX-RBU23
6  min.
4  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)
3G3AX-RBU24
3G3AX-RBU42
4  min. 24  min.
2  min. 10  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)
High-function General-purpose Inverter RX2 Series User's Manual
3-phase 400-V class
*1 *1
3G3AX-RBU43
12  min.
6  min.
Cycle 1/5
(ON for 2 min/
OFF for 8 min)
2 min