Appendix A 7
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Inverter model 3G3IV-
-
380 to 460 V
B4450B4370B4300B4220B4185B4150B4110
Control characteristics Output frequency resolution 0.01 Hz (1/30000)
Overload capacity 150% rated output current for one minute
Frequency setting signal
0to10VDC(20kΩ),4to20mA(250Ω)0
±
10 V
(OPTIONAL)
Accel/Decel time 0.1 to 6000 sec. (Accel/Decel time setting independently)
Braking torque Approx. 20%
No. of V-f patterns
(Total of 16)
4: For general purpose
4: For high starting torque:
1: For adjustable pattern
4: For fans and pumps
3: For machine tools.
Protective functions Motor overload protection Electric thermal overload relay
Instantaneous overcurrent Motor coasts to a stop at approx. 200% rated current.
Fuse blown protection Motor coasts to a stop by blown-fuse.
Overload Motor coasts to a stop for 1 minute at 150% rated output
current.
Overvoltage Motor coasts to a stop if converter output voltage exceeds
800 V.
Undervoltage Motor coasts to a stop if converter output voltage drops to
420 V or below (See Note 3).
Momentary power loss Immediately stop by 15 ms and above momentary power loss.
(Continuous system operation during power loss less than 2
sec is equipped as standard. See Note 2.) Setting made
before shipment.
Fin overheat Thermostat
Stall prevention Stall prevention at acceleration/deceleration and constant
speed operation
Ground fault Provided by electronic circuit
Power charge indication Charge lamp stays ON until bus voltage drops below 50 V.
Environmental
Location Indoor (protected from corrosive gases and dust)
conditions
Ambient temperature +4° to 104°F(--10° to +40°C) (not frozen)
Storage temperature
(See Note 4)
--4° to 140°F(--20° to +60°C)
Humidity 90% RH (non-condensing)
Vibration 1Glessthan20Hz,upto0.2Gat20to50Hz
Note 1. Our standard 4-pole motor is used for max applicable motor output.
2. Allowable values for the applications not required overload.
3. For Models of 4.1 kVA or less, continuous system operation during power loss less than 1 sec, for
models with capacitor (option), less than 2 seconds.
4. Temperature during shipping (for short period).
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