LG Electronics C Series manual Temperature Derating Information, Load current VS Carrier frequency

14. Specifications

Alarm	command, H/W fault
	Stall prevention, Overload
Conditions
Momentary	Less than 15 msec: Continuous operation
power loss	More than 15 msec: Auto Restart enable

zEnvironment

Cooling	Forced air cooling
method
Degree of	Open, Pollution degree 2
protection
Ambient	-10 ~ 50°C (14 ~ 122°C)
temperature
Storage	- 20 ~ 65°C (-4 ~ 149°C)
temperature
Relative	Less than 90% (no condensation)
humidity
Altitude,	1,000m (3000 ft) above sea level, Max. 5.9m/sec2 (0.6G)
Vibration
Application	Protected from corrosive gas, combustible gas, oil mist or dust
site

14.2 Temperature Derating Information

zLoad current VS Carrier frequency

For 0.4kW, 0.8kW, 1.5kW inverter

Load

Current

100%

For 2.2kW inverter

Load

Current

100%

80%

1kHz	15kHz	1kHz	8kHz	15kHz
Carrier freq.			Carrier freq.

Note:

1.The above graph is applied when inverter is in use within the permissible ambient temp. If the unit is installed in a panel, install it where heat dissipation is properly done to keep the panel ambient temp within permissible range.

2.This de-rating curve is based on inverter current rating when rated motor is connected.

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