Guide Specification for SmartVFD HVAC VFDs (English)

24V Aux. Voltage Output: (1) output: +24 Vdc, ±10%, max. load 250 mA, short-circuit protected. ... The VFD shall automatically lower motor speed to adapt to sudden voltage drop or power loss. ... The VFD shall automatically provide DC current for pre-heating of motor and VFD in stop state, activated by digital input or by heat sink temperature ... ................
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