Omron RX Series - Common Specifications

1 - 11
1 Overview
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
1-3 Specifications
1
1-3-1 Standard Specifications
Common Specifications
Item Specifications
Enclosure rating
IP20 (0.4 to 55 kW)
IP00 (75 to 132 kW)
Control method Phase-to-phase sinusoidal modulation PWM
Output frequency range 0.1 to 400 Hz
Frequency precision
Digital command: ±0.01% of the maximum frequency, Analog command: ±0.2% of
the maximum frequency (25±10°C)
Frequency resolution
Digital setting: 0.01 Hz
Analog setting:
Maximum frequency/4000 (Terminal FV: 12 bits/0 to 10 V),
(Terminal FE: 12 bits/–10 to 10 V), (Terminal FI: 12 bits/0 to 20 mA)
Voltage/Frequency characteristics
Heavy load (CT): V/f characteristics (constant torque, reduced torque, free V/f
setting), sensorless vector control, 0-Hz sensorless vector
control, sensor vector control
Light load (VT): V/f characteristics (constant torque, reduced torque, free V/f
setting), sensorless vector control
Overload current rating
Heavy load (CT): 150%/60 s, 200%/3 s (180%/3 s for 75 kW or more)
Light load (VT): 120%/60 s, 150%/5 s
Instantaneous overcurrent protection 200% of heavy load rating (CT) value
Acceleration/Deceleration time 0.01 to 3600.0 s (line/curve setting)
Speed fluctuation
Heavy load (CT):
±0.5%
*1 *2
Light load (VT):
±0.5%
*1
Carrier frequency change range
<For 0.4 to 55 kW> <For 75 to 132 kW>
Heavy load (CT): 0.5 to 15 kHz Heavy load (CT): 0.5 to 10 kHz
Light load (VT): 0.5 to 12 kHz Light load (VT): 0.5 to 8 kHz
Starting torque
Sensorless
vector control
<For 0.4 to 55 kW> <For 75 to 132 kW>
Heavy load (CT):
200%/0.3 Hz
*1
Heavy load (CT):
180%/0.3 Hz
*1
Light load (VT):
150%/0.5 Hz
*1
Light load (VT):
120%/0.5 Hz
*1
0-Hz sensorless
vector control
<For 0.4 to 55 kW> <For 75 to 132 kW>
Heavy load (CT):
150%/Torque at 0 Hz
*3
Heavy load (CT):
130%/Torque at 0 Hz
*3
Light load (VT): No function available Light load (VT): No function available
DC injection braking
Operates when the starting frequency is lower than that in deceleration via the
STOP command, when the frequency reference is lower than the operation
frequency, or via an external input (braking power, time, and frequency are
adjustable)
Protective functions
Overcurrent protection, Overvoltage protection, Undervoltage protection,
Electronic thermal protection, Temperature error protection, Momentary power
interruption/Power interruption protection, Input phase loss protection, Braking
resistor overload protection, Ground-fault current detection at power-on, USP
error, External trip, Emergency shutoff trip, CT error, Communication error, Option
error, etc.