Dual WeldStation LEAF TM F EATURES
S OFT S TART
The of a Variable Frequency Drive (VFD) allows the motor ramp up to speed rather than across the line starting contactors. This eliminates starting amperage spikes as well as inertial effects of the blower. In non-VFD systems, these spikes can be as high as eight times the full load amps.
P RESSURE T RACKING
The Variable Frequency Drive (VFD) inside the control panel allows the Dual WeldStation to track the usage of the filters. This allows the unit to automatically increase the speed of the motor to compensate for the additional air restrictions caused from dirty filters. This features is an automatic feature and cannot be disabled.
This feature alone can save 55% of the energy costs over the life of the filters.
E CONOMIZER TM
The economizer is a standard feature on the Dual WeldStation LEAF TM . When the unit is in automatic mode, the economizer will start the unit automatically when the user begins welding. When the user has stopped welding, the unit will shut the unit down automatically. One minute after the end of the welding arc, unit will go into Sleep mode. If the user begins welding within that one minute time frame, the timer will be reset and recommence when the welding ends again.
S LEEP F UNCTION
The sleep function can be set as described in the Option Mode. The sleep function is set to last 5 minutes by default. When the one minute Economizer TM timer ends, sleep mode is activated. During this time, the VFD ramps down the speed of the motor to about 20% of the maximum speed. During this time, the drive uses only 2% of the energy, but is able to maintain the blower speed and eliminates much of the power required at the unit start up
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