15
CHARACTERISTICS
Control Characteristics
Control Method
Sine wave PWM
V/F control
Starting Torque V/F control: 150% at 3Hz
Speed Control Range V/F control: 1 : 10
Speed Control Accuracy V/F control: ±1% (with slip compensation)
Frequency Control Range 0.1 ~ 400.0Hz
Frequency Setting Resolution Digital reference: 0.01Hz (100Hz Below); Analog reference: 0.06Hz/60Hz
Frequency Accuracy
Digital reference: ±0.01% (-10 ~ +40℃); Analog command: ±0.1% (25℃± 10℃)
Output Frequency Resolution 0.01Hz (1/30000)
Frequency Setting Signal 0 ~ 10VDC (20KΩ), 4~20mA (250Ω)
Overload Capacity 150% rated output current for 1 minute.
Accel/Decel Time 0.1 ~ 6000.0 sec (Accel/Decel time settings independently)
Efficiency at Rated Freq. 0.95 above
Braking Torque
Approx. 20% (Approx. 125% When using braking resistor)
Inverter of 220V 20HP (15KW) or less and 440V 25HP (18.5KW) or less have a
Built-in braking transistor
Protective Functions
Motor Overload Protection Electric thermal overload relay
Instantaneous Overcurrent (OC)
and Short Circuit Protection
Motor coasts to stop at approx. 200% rated output current.
Inverter Overheat Protection
(OL2)
150% inverter rated output current for 1 min.
Overvoltage (OV)
Motor coasts to stop if the main circuit voltage exceeds 410VDC (820VDC for
440V class)
Undervoltage (UV)
Motor coasts to stop if the main circuit voltage drops to 190VDC (380VDC for
440V class)
Momentary Power Loss
Immediately stop after 15 ms or longer power loss (at factory setting)
Continuous operation during power loss less than 2 sec. (standard)
Fin Overheat (OH) Thermostat
Stall Prevention Stall prevention during acceleration/deceleration and constant speed operation.
Ground Fault (GF) Provided by electronic circuit.
Power Charge Indication Indicates until main circuit voltage reaches 50V.
Environmental
Conditions
Location Indoor (Protected from corrosive gases and dust)
Humidity 95% RH (non-condensing)
Storage Temperature
-20 ~+60℃ (for short period during shipping)
Ambient Temperature
-10 to +40℃ (for NEMA1 type); -10 to +45℃ (for open chassis type)
Altitude 1000m or below
Vibration 9.8m/s
2
at 20Hz or below, up to 2m/s
2
at 20 to 50Hz
Communication Function MODBUS Installed, PROFIBUS (option)
EMI Meet EN 50081-2 (1994) with specified EMI filter
EMC Compatibility Meet Pr EN50082-2
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