Omron 3G3RX - Common Specifications

7-4
7-1 Standard Specification List
7
Specifications
Common Specifications
Item Specifications
Enclosure rating IP20 up to 55 kW, IP00 from 75 to 132 kW
Cooling method Forced air cooling
Control method Phase-to-phase sinusoidal modulation PWM
Output frequency range 0.1 to 400 Hz
Frequency precision
Digital command: ±0.01% of the max. frequency
Analog command: ±0.2% of the max. frequency (25C ± 10C)
Frequency resolution
Digital setting: 0.01 Hz
Analog setting: Max. frequency/4000
(Terminal O: 12 bits/0 to +10 V), (Terminal O2: 12 bits/-10 to +10 V),
(Terminal OI: 12 bits/0 to +20 mA)
Voltage/Frequency
characteristics
V/f optionally changeable at base frequencies of 30 to 400 Hz, V/f braking constant
torque, reduction torque, sensor-less vector control, sensor-less vector control at 0 Hz
Speed fluctuation ±0.5% (under sensor-less vector control or sensor-less vector control at 0 Hz)
Overload current rating 150%/60s, 200%/3s for CT and 120%/60s for VT
Acceleration/Deceleration
time
0.01 to 3600.0 s (line/curve selection)
Starting torque
200%/0.3 Hz
(under sensor-less vector control or sensor-less vector control at 0 Hz)
150%/Torque at 0 Hz (under sensor-less vector control at 0 Hz, when a motor size one
rank lower than specified is connected)
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 variable)
Input
Frequency settings
Standard Digital
Operator
Setting via keys
External signal
0 to +10 V DC, -10 to +10 V DC (Input impedance: 10 k)
4 to 20 mA (Input impedance: 100 )
External port Setting through RS485 communication
Forward or reverse operation/Stop
Standard Digital
Operator
RUN/STOP (Forward/reverse switched via the parameter settings)
External signal
Forward/Stop (Reverse/Stop available at the time of multi-functional input terminal
allocation)
3-wire input available (at the time of control circuit terminal block allocation)
External port Setting through RS485 communication