Delta Electronics VFD-M manual Basic Wiring Diagram, Danger

Chapter 2 Installation and Wiring

DANGER!

1.A charge may still remain in the DC bus capacitors with hazardous voltages even if the power has been turned off. To prevent personal injury, please ensure that the power is turned off and wait ten minutes for the capacitors to discharge to safe voltage levels before opening the AC motor drive.

2.Only qualified personnel familiar with AC motor drives is allowed to perform installation, wiring and commissioning.

3.Make sure that the power is off before doing any wiring to prevent electric shock.

2.1 Basic Wiring Diagram

Users must connect wires according to the following circuit diagram shown below.

				Brake Resistor (optional)
Main Circuit Power
R/L1NFB				R/L1 B1	B2	U/T1	AC Motor
S/L2				S/L2			IM
						V/T2
T/L3				T/L3			3~
		SA				W/T3
Recommended Circuit				RB
			MC			E
when power supply				RC
is turned OFF by a	OFF ON		MC				Grounding
fault output
The spec. of main circuit						RA	Multi-function indication
terminal is M3.0							output contact
	Factory default					RB
							120VAC/250VAC 5A
Forward/Stop
				M0		RC	24VDC less than 2.5A
Reverse/Stop
				M1			Factory default:
Reset						MO1	indicates malfunction
				M2
Multi-step 1							Multi-function Photocoupler
				M3			output contact 48VDC 50mA
Multi-step 2							Factory default: Indicates
				M4
Multi-step 3						MCM during operation
				M5			VR(1KΩ)
Common signal				GND		AFM	For adjustment
							+	Analog output
Master Frequency setting				E
factory default is VR which is Power for speed setting							-	DC 0～10V
on the digital keypad				+10V 10mA(MAX) GND			Factory default:
	3					E
Analog voltage							output frequency
						RJ-11
	VR 2							Main circuit (power)
0～10VDC				AVI	RS-485		1:15V
VR：3K～5KΩ							2:GND	terminals
					series interface 6←1
Analog current	1			ACI			3:SG-	Control circuit terminals
							4:SG+
				GND				Shielded leads
							5:Reserved
				E			6:Reserved

NOTE: Do not plug a Modem or telephone line to the RS-485 communication port, permanent damage may result. Terminal 1& 2 are the power sources for the optional copy keypad and should not be used while using RS-485 communication.

*If it is single phase model, please select any of the two input power terminals in main circuit power.

*Single phase model can be input 3-phase power.

2-2 Revision May 2008, ME14, SW V3.04