Delta Electronics VFD-VL DC voltage Low voltage level Battery voltage, Run, Valve, About 2 sec

Chapter 2 Installation and Wiring

Figure 4 Apply to two batteries with main battery voltage is lower than 280Vdc

1

AC motor driv e

	Main	2	R /L1
	power
48V dc (230V Se rie s)	3		S/L2
96V dc (460V Se rie s)	~
			T /L3
		3	EPS/+
1-phase UP S or battery
Specific ations for			EPS/-
1-phase UP S and battery
250VDC (for 230V series)
500VDC (for 460V series)			MI1~8
To input emergency power			C OM

Timing diagram of M.C. (magnetic contac t or)

1

2

3

Before inputting emer gency power,

magneti c c ontactor 1	and	3	are ON and
magneti c c ontactor 2	should be O FF.
Magneti c c ontactor 3	should be O N
after magnetic contac tor 1		is ON.
Before removing battery and turn
magneti c c ontactor 2	to be O N,
magneti c c ontactor 1	and	3	should be
OFF.

DC voltage		low voltage level				battery voltage
	free
			run				default EPS operation
motor speed				mechanical brakefrequency
error output
electromagnetic			OFF
valve
operation
command							about 1 min.
EPS detection
					ON
MI-COM=43
electromagnetic
					ON
valve
drive ready
MO-COM=9					ON
					about 2 sec.

CAUTION!

1.The wiring of main circuit and control circuit should be separated to prevent erroneous actions.

2.Please use shield wire for the control wiring and not to expose the peeled-off net in front of the terminal.

3.Please use the shield wire or tube for the power wiring and ground the two ends of the shield wire or tube.

4.Damaged insulation of wiring may cause personal injury or damage to circuits/equipment if it comes in contact with high voltage.

2-4 Revision Nov. 2008, VLE1, SW V1.03