Torque Starting 150%+ at 1Hz. With Torque Vector control, 200%+ at 3Hz.
boost (contin.) Limit When the motor torque reaches a preset level, the torque limit function
automatically controls the output frequency to prevent the inverter from
tripping due to an overload, if selected.
2nd motor operation The following functions are provided for the control of a 2nd motor:
Rated current 2; Base frequency 2; Torque boost 2; Acceleration time
2; Deceleration time 2; Electronic thermal overload relay 2.
3.2 Indication
Operating mode The following operating parameters can be selected to view:
Output frequency; Output current; Output voltage;
Motor synchronous speed (rpm); Line speed (m/min).
Programming mode LED display: Function number and data (refer to pages 18 to 20).
Trip mode LED display: cause of trip. Refer to Function 29, page 32.
3.3 Protection
Supply system surge V Protection to the following level: 1.2 x 50µs, 7kV peak.
Overload trip Selectable electronic thermal overload relay protecting the power output
IGBTs.
Overvoltage trip Detection of overvoltage in the DC bus circuit at the following levels:
Single phase inverters: 400V DC. Three phase inverters: 800V DC.
Undervoltage trip Detection of undervoltage in the DC bus circuit at the following levels:
Single phase inverters: 200V DC. Three phase inverters: 400V DC.
Overtemperature trip Temperature detection of inverter hardware.
Output short circuit trip Inverter output circuit, factory-set short circuit protection.
Earth (ground) fault trip Inverter output circuit, factory-set earth fault protection.
Motor thermal O/L trip Internal electronic thermal overload, user-selectable for application.
The second unit of this function is available for a 2nd motor.
Stall prevention Prevents the inverter tripping on overcurrent when the output current
exceeds a preset limiting level during acceleration, deceleration, or at
steady speed by freezing or reducing the output frequency.
Alarm output Changeover contacts operate when a protective function is activated.
Rating: 48V DC, 0.3A.
Alarm reset Alarm cancelled by either RESET keypad key or terminal RST.
Alarm history The last four alarms are recorded and can be viewed. Refer to
Function 29, page 32.
3.4 Operating Environment
Altitude Derate the inverter if installed above 1000m (3280ft).
Location The inverter is designed for installation in a steel enclosure.
Do not install the inverter in a dusty location or expose to corrosive
gases, oil or water, or direct sunlight.
Ambient temperature -10
o
C to +50
o
C (+14
o
F to +122
o
F). If ambient temperature exceeds
40
o
C (104
o
F), remove inverter side covers.
Ambient humidity 20% to 90% non-condensing.
Vibration 5.9m/s
2
(0.6G) or less.
5
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