Delta Electronics VFD-VE Series manual Connection is finished Connection control

Chapter 4 Parameters

When output frequency reaches Y-connection/Δ −connection switch frequency, drive will delay

by Pr.05-30 before multi-function output terminals are active.

Y- connection switch: can be used for wide range motor

Y connection for low speed: higher torque can be used for rigid tapping connection for high speed: higher torque can be used for high-speed drilling

connection is finished		U
Pr.02-01~06=30
	MI1	V
		W	U	V	W
Y-connection is finished		connection control
Pr.02- 01~06=29	MI2	Pr.02-11~14=32		IM
		RA
		Y connection control
		Pr.02-11~14=31	X	Y	Z
		MRA
		Y-connection
		confirmation input
	If switch point is 60Hz,
	the accel. switch point is 62Hz		Decel. switch point is 58Hz
Pr.05-11
Y-△switch		In this area, motor is in free			Bandwidth is 2Hz
frequency
Motor speed/		run status. AC motor drive			Motor speed will
		stops outputting.
					decrease
frequency
	Pr. 05-30 Delay Time for Y-connection				by load inertia.
	/D -connection(Min. is 0.2 seconds)

Y-connection output

Y-conenction

confirmation input

ON

ON

Pr.02-11~14=31

Pr.02-11~14=29

ON

ON

△-connection output Pr.02-11~14=32

△-connection confirmation input Pr.02-11~14=30

ON

ON

:mechanical bounce time

4-90 Revision August 2008, 03VE, SW V2.04