Toshiba VF-PS1, VF-AS1 instruction manual Standard connection diagram Star-delta switching start

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1.2. Standard connection diagram (Star-delta switching start)

This is the circuit to switch the motor to commercial power supply Star Delta (star-delta) connection startup when the inverter’s protective function is activated.

MC1 *2

		PO	PA/+	PC/-	PB
							For motor protection
MCCB	MC2	*3			U/T1	MC3 *2	THR *4	MCY
		R/L1					Motor
		S/L2	Main circuit		V/T2		I M
		T/L3			W/T3
							MCD
Control power supply					F		Run
							command
backup option *1					R
		+SU			ST		Stand-by *7
		FLA			RES		Reset *6
		FLB		Control	S1
			FL	circuit	S2		Emergency
		FLC					stop *5
					S3
			Protective action
		P24/PLC
			detection relay
	RY1	OUT1			CC		Common
	RY2	OUT2			G / E
		NO
		CC
		OUT1 FM AM CCA RX VI/II RR/S4 PP

*1: The control power supply backup option (Model: CPS002Z) is needed.	*7: VF-AS1's 'WP1/WN1' model and VF-PS1 don't have 'ST'
*2: Observe the Item 1 in 1.3, “Precautions.”	terminal. Please set next parameter for use 'S3' terminal as
*3: See Item 2 in 1.3, “Precautions.”	'ST' function.
*4: Be careful about Items 3 in 1.3, “Precautions.”
*5: Be careful about Items 5 and 7 in 1.3, “Precautions.”	f110	(Always ON function selection 1)	= 0
*6: Be careful about Item 6 in 1.3, “Precautions.	f117	(Input terminal function selection: S3)	= 6

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