Hitachi X200 Series Energy Savings Mode / Optional Accel/Decel, RUN Mode NOR, ECO Adj 0050.0%

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Energy Savings Mode / Optional Accel/Decel

Configuring Drive Parameters

Energy Saving Mode – This function allows the inverter to deliver the minimum power necessary to maintain speed at any given frequency. This works best when driving variable torque characteristic loads such as fans and pumps. Parameter A085=01 enables this function and A086 controls the degrees of its effect. A setting of 0.0 yields slow response but high accuracy, while a setting of 100 will yield a fast response with lower accuracy.

		“A” Function		Run		Defaults
Func.	Name /		Description	Mode -FE -FU				Units
Code	SRW Display			Edit (EU)			(USA)
A085	Operation mode selection		Three option codes:		00		00	−
			00…Normal operation
	RUN MODE	NOR	01…Energy-saver operation
A086	Energy saving mode tuning		Range is 0.0 to 100 sec.		50.0		50.0	sec.
	ECO Adj	0050.0%

The acceleration time is controlled so that the output current below the level set by the Overload Restriction Function if enabled (Parameters b021, b022, and b023). If Overload Restriction is not enabled, then the current limit used is 150% of the inverter’s rated output current.

The deceleration time is controlled so that the output current is maintained below 150% of the inverter’s rated current, and the DC bus voltage is maintained below the OV Trip level (400V or 800V).

NOTE: If the load exceeds the rating of the inverter, the acceleration time may be increased.

NOTE: If using a motor with a capacity that is one size smaller than the inverter rating, enable the Overload Restriction function (b021) and set the Overload Restriction Level (b022) to 1.5 times the motor nameplate current.

NOTE: Be aware that the acceleration and deceleration times will vary, depending on the actual load conditions during each individual operation of the inverter.