IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 10
Motor overload protection UL recognized electronic thermal overload relay; field-programmable
Overcurrent protection level 200% of VFD rated current
Circuit protection Ground fault and blown-fuse protection
Overvoltage protection level Approximately 410VDC (230V Class), 820VDC (460V Class)
Undervoltage protection level Approximately 190VDC (230V Class), 380VDC (460V Class)
Heatsink overtemperature Thermostat trips at 184–249°F (90–121°C), dependent on VFD capacity
Torque limit selection Limiting of Forward, Reverse, and Regen torques; selectable from 0–300%
Stall prevention Functions for accel, decel, at-speed, and constant horsepower region
Other protection features
Lost output phase, failed-oscillator, mechanical overload, and internal braking
transistor failure.
DC bus voltage indication Charge LED is on until DC bus voltage drops below 50VDC
Location Indoors; requires protection from moisture, corrosive gases, and liquids
Ambient operating temperature 14° to 122°F (-10° to 50°C)
Storage temperature -4° to 140°F (-20° to 60°C)
Humidity 95% relative; non-condensing
Vibration
10 to 20 Hz: 9.8 m/s
2
20 to 55 Hz: 5.9 m/s
2
Elevation
1,000 m and up to 3,000 m with derate. Derate 1% for every 100 m higher than 1,000 m.
Orientation Install the VFD vertically to maintain maximum cooling effects.
Specification Specification Value and Information for All Models
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