DELTA VFD-B User Manual

230V Series		460V Series
0.75	37KW	0.75	75KW
1.0	50HP	1.0	100HP

VFD-B Series

Preface

Thank you for choosing DELTA’s high-performance VFD-B Series. VFD-B Series are manufactured by adopting high-quality components, material and incorporating the latest microprocessor technology available.

Getting Started

This manual will be helpful in the installation, parameter setting, troubleshooting, and daily maintenance of the AC motor drives. To guarantee safe operation of the equipment, read the following safety guidelines before connecting power to the AC drives. Keep this operating manual handy and distribute to all users for reference.

! WARNING

!

!

!

!

!

!

!

Always read this manual thoroughly before using VFD-B series AC Motor Drives.

DANGER! AC input power must be disconnected before any maintenance. Do not connect or disconnect wires and connectors while power is applied to the circuit. Maintenance must be performed by qualified technicians.

CAUTION! There are highly sensitive MOS components on the printed circuit boards. These components are especially sensitive to static electricity. To avoid damage to these components, do not touch these components or the circuit boards with metal objects or your bare hands.

DANGER! A charge may still remain in the DC-link capacitor with hazardous voltages even if the power has been turned off. To avoid personal injury, please ensure that power has turned off before operating AC drive and wait ten minutes for capacitors to discharge to safe voltage levels.

CAUTION! Ground the VFD-B using the ground terminal. The grounding method must comply with the laws of the country where the AC drive is to be installed. Refer to

Basic Wiring Diagram.

DANGER! The AC drive may be destroyed beyond repair if incorrect cables are connected to the input/output terminals. Never connect the AC drive output terminals

U/T1, V/T2, and W/T3 directly to the AC main circuit power supply.

CAUTION! The final enclosures of the AC drive must comply with EN50178. (Live parts shall be arranged in enclosures or located behind barriers that meet at least the requirements of the Protective Type IP20. The top surface of the enclosures or barrier that is easily accessible shall meet at least the requirements of the Protective Type

IP40). (VFD-B series corresponds with this regulation.)

CAUTION! Heat sink may heat up over 70oC (158oF), during the operation. Do not touch the heat sink.

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

TABLE OF CONTENTS

CHAPTER 1 RECEIVING AND INSPECTIONS
1.1	Nameplate Information .......................................................................	1	- 1
1.2	Model Explanation ..............................................................................	1	- 1
1.3	Serial Number Explanation.................................................................	1	- 2

CHAPTER 2 STORAGE AND INSTALLATION
2.1	Storage ...............................................................................................	2	- 1
2.2	Installation ..........................................................................................	2	- 2

CHAPTER 3 WIRING
3.1	Basic Wiring Diagram .........................................................................	3	- 2
3.2	External Wiring ...................................................................................	3	- 6
3.3 Terminal Explanation ..........................................................................		3	- 7
3.4	Control Terminal Explanation..............................................................	3	- 7
3.5	Main Circuit Wiring ............................................................................	3	- 9
3.6	Wiring Notes .......................................................................................	3-16
3.7	Motor Operation Precautions..............................................................	3-17

CHAPTER 4 DIGITAL KEYPAD OPERATION
4.1	Description of the Digital Keypad VFD-PU01 .....................................	4	- 2
4.2	Operation steps of the Digital Keypad VFD-PU01..............................	4	- 4

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

CHAPTER 5 DESCRIPTION OF PARAMETER SETTINGS
Group 0: User Parameters .......................................................................	5	- 1
Group 1: Basic Parameters ......................................................................	5	- 5
Group 2: Operating Method Parameters ..................................................	5-11
Group 3: Output Function Parameters .....................................................	5-17
Group 4: Input Function Parameters ........................................................	5-22

Group 5:Multi-step Speed and PLC (Process Logic Control) Parameter . 5-32

Group 6: Protection Parameters...............................................................	5-38
Group 7: Motor Parameters......................................................................	5-44
Group 8: Special Parameters ...................................................................	5-47
Group 9: Communication Parameters ......................................................	5-54
Group 10: PID Control Parameters ..........................................................	5-69
Group 11: Fan and Pump Control Parameters .........................................	5-74

CHAPTER 6 MAINTENANCE AND INSPECTIONS
6.1	Periodic Inspection .............................................................................	6	- 1
6.2	Periodic Maintenance .........................................................................	6	- 1

CHAPTER 7 TROUBLESHOOTING AND FAULT INFORMATION...........

7 - 1

CHAPTER 8 SUMMARY OF PARAMETER SETTINGS ............................

8 - 1

APPENDIX A SPECIFICATIONS ...............................................................

A - 1

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

APPENDIX B ACCESSORIES
B.1	Non-fused Circuit Breaker and Fuse Specification Chart...................	B - 1
B.2	Braking Resistors & Braking Units .....................................................	B - 3
B.3 AMD-EMI Filter Cross Reference.......................................................		B - 7
B.4	PG Cards ...........................................................................................	B-16
B.5	Remote Controller RC-01...................................................................	B-22
B.6	Remote Panel Adapter .......................................................................	B-23
B.7	Zero Phase Reactor ...........................................................................	B-24

APPENDIX C DIMENSIONS.......................................................................

C - 1

APPENDIX D EC DECELERATION OF CONFORMITY.............................

D - 1

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

CHAPTER 1 RECEIVING AND INSPECTION

1

This VFD-B AC drive has gone through rigorous quality control tests at the factory before shipment. After receiving the AC drive, please check for the following:

Receiving

Check to make sure that the package includes an AC drive, the User Manual, dust covers and rubber bushings.

Inspect the unit to insure it was not damaged during shipment.

Make sure that the part number indicated on the nameplate corresponds with the part number of your order.

1.1 Nameplate Information: Example for 1HP/0.75kW 3-phase 230V AC drive

AC Drive Model

MODE

: VFD007B23A

Input Spec.

INPUT

: 3PH 200-240V 50/60Hz 6.0A

Output Spec.

OUTPUT

: 3PH 0-240V 5.0A 1.9kVA 1HP

Freq. Range : 0.1~400Hz

Output Frequency Range

ENCLOSURE: TYPE 1

Enclosure type

Serial Number & Bar Code

007B23A0T0220001

1.2 Model Explanation:

	VFD 007 B 23 A
							Version Type
							Input Voltage
							21:Single phase 230V 23:Three phase 230V
							43:Three phase 460V
							B Series
							Applicable motor capacity
							007: 1 HP(0.7kW)	150: 20HP(15kW)
	Series Name
							022: 3 HP(2.2kW)	220: 30 HP(22kW)
							037: 5 HP(3.7kW)	300: 40HP(30kW)
							055: 7.5HP(5.5kW)	370: 50 HP(37kW)
							075: 10 HP(7.5kW)	450: 60HP(45kW)
							110: 15 HP(11kW)	550: 75HP(55kW)

750: 100HP(75kW)

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

1-1

VFD-B Series

1.3 Series Number Explanation:

1

007B23A0 T 3 01

			Production number
			Production week
			Production year 2003
			Production factory
	230V 3-phase 1HP(0.75kW)		(Taoyuan)
			Model

If there is any nameplate information not corresponding to your purchase order or any problem, please contact your distributor.

1-2	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

	CHAPTER 2 STORAGE AND INSTALLATION
	2.1 Storage
			2
	The AC drive should be kept in the shipping carton before installation. In order to retain the
	warranty coverage, the AC drive should be stored properly when it is not to be used for an
	extended period of time.
	Ambient Conditions:
	Operation	Air Temperature: -10oC to +40oC (14oF to 104oF) (UL & cUL);
		+50oC (122oF) without dust cover.
		Atmosphere pressure: 86 to 106 kPa
		Installation Site Altitude: below 1000m
		Vibration: Maximum 9.80 m/s2 (1G) at less than 20Hz
		Maximum 5.88 m/s2 (0.6G) at 20Hz to 50Hz
	Storage	Temperature: -20oC to +60oC (-4oF to 140oF)
		Relative Humidity: Less than 90%, no condensation allowed
		Atmosphere pressure: 86 to 106 kPa
	Transportation	Temperature: -20oC to +60oC (-4oF to 140oF)
		Relative Humidity: Less than 90%, no condensation allowed
		Atmosphere pressure: 86 to 106 kPa
		Vibration: Maximum 9.80 m/s2 (1G) at less than 20Hz, Maximum 5.88
		m/s2 (0.6G) at 20Hz to 50Hz

Pollution Degree 2: good for a factory type environment.

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

2-1

VFD-B Series

2.2 Installation

CAUTION

The control, power supply and motor leads must be laid separately. They must not be fed through the same cable conduit / trunking.

High voltage insulation test equipment must not be used on cables connected to the drive.

Improper installation of the AC drive will greatly reduce its life. Be sure to observe the following precautions when selecting a mounting location.

Failure to observe these precautions may void the warranty!

Do not mount the AC drive near heat-radiating elements or in direct sunlight.

Do not install the AC drive in a place subjected to high temperature, high humidity, excessive vibration, corrosive gases or liquids, or airborne dust or metallic particles.

Mount the AC drive vertically and do not restrict the air flow to the heat sink fins.

The AC drive generates heat.

120mm

50mm

FWD

REV

Allow sufficient space around the unit for heat dissipation.

Air Flow

PROG

DATA

50mm

120mm

2-2	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

CHAPTER 3 WIRING

DANGER

Hazardous Voltage

Before accessing the AC drive:

Disconnect all power to the AC drive. 3 Wait five minutes for DC bus capacitors discharge.

Any electrical or mechanical modification to this equipment without prior written consent of Delta Electronics, Inc. will void all warranties and may result in a safety hazard in addition to voiding the UL listing.

Short Circuit Withstand:

The rated voltage must be equal to or less than 240V (460V model is 480Volts) and the current must be equal to or less than 5000A RMS. (the model of 40HP or above is 10000A RMS)

General Wiring Information

Applicable Codes

All VFD-B AC drives except 015B21A, 015B23A and 075B23B are Underwriters Laboratories, Inc. (UL) and Canadian Underwriters Laboratories (cUL) listed, and therefore comply with the requirements of the National Electrical Code (NEC) and the Canadian Electrical Code (CEC).

Installation intended to meet the UL and cUL requirements must follow the instructions provided in “Wiring Notes” as a minimum standard. Follow all local codes that exceed UL and cUL requirements. Refer to the technical data label affixed to the AC drive and the motor nameplate for electrical data.

The "Line Fuse Specification" in Appendix B, lists the recommended fuse part number for each B-Series part number. These fuses (or equivalent) must be used on all installations where compliance with U.L. standards is a required.

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-1

VFD-B Series

3.1 Basic Wiring Diagram

Users must connect wires according to the following circuit diagram shown below. Do not plug a Modem or telephone line to the RS-485 communication port, permanent damage may result. Terminals 1 & 2 are the power sources only for the optional copy keypad and should not be used while using RS-485 communication.

	Figure 1 for models of VFD-B Series
	VFD007B21A/23A/43A, VFD015B21A/21B/23A/23B/43A
	VFD022B23B/43B				DC choke
					(optional)
	Fuse/NFB(None Fuse Breaker)				Jumper
						+1	B2	Motor
	R(L1)
						R(L1)	U(T1)	IM
	S(L2)					S(L2)	V(T2)
	T(L3)					T(L3)	W(T3)	3~
						E	E
					SA
	Recommended Circuit					RB	RA
					MC
	when power supply					RC
	is turned OFF by a	OFF			ON		RB	Please refer to “Control
	fault output
					MC	+24V	RC	Terminal Explanation”.
	Factory Default:	FWD/STOP
						FWD
	SINK Mode	REV/STOP					MO1
	Sink					REV		Factory default:
	Sw1	JOG
						JOG		indicates during operation
	Source	E.F.						48V50mA
	Please refer to Figure 4					EF	MO2
								Factory default:
	for wiring of SINK	Multi-step 1				MI1
	mode and SOURCE	Multi-step 2						Freq. Setting Indication
	mode.					MI2	MO3	48V50mA
	Factory	Multi-step 3				MI3		Factory default:
		Multi-step 4
	default					MI4		Low-voltage Indication
		RESET				MI5		48V50mA
							MCM	Multi-function
		Accel/Decel prohibit
						MI6		Photocoulper Output
		Counter					AFM	Analog Multi-function Output
						TRG
		Digital Signal Common				DCM		Terminal
	* Don't apply the mains voltage directly						ACM	Factory default: Analog freq.
						E		/ current meter 0~10VDC/2mA
	to above terminals.
						+10V	E	Analog Signal common
			3			Power supply	DFM	Digital Frequency Output
						+10V 20mA
								Terminal
		5K	2			AVI
								Factory default: 1:1
			1			Master Frequency		Duty=50%
				4~20mA		0 to 10V 47K		Digital Signal Common
			-10~+10V			ACI	DCM RS-485
						AUI
								Serial interface
		Analog Signal Common				ACM		1: EV 2: GND 3: SG-
						E		4: SG+ 5:NC
								6: for communication
	Main circuit (power) terminals					Control circuit terminals		Shielded leads & Cable

3-2	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

Figure 2 for models of VFD-B Series 3-15 HP

VFD022B21A, VFD037B23A/43A, VFD055B23A/43A, VFD075B23A/43A, VFD110B23A/43A

* Three phase input power may apply to single phase drives.

* For the single phase application, the AC input line can

be connected to any two of the three input terminals R,S,T

VFDB BR

				DC chock
				(optional)		BR
Fuse/NFB(None Fuse Breaker)				Jumper						3
					+1	B2 -(minus sign)
R(L1)									Motor
					R(L1)	U(T1)			IM
S(L2)					S(L2)
						V(T2)
T(L3)					T(L3)				3~
						W(T3)
					E
						E
Recommended Circuit				SA	RB
				MC		RA
when power supply					RC
is turned OFF by a	OFF			ON
fault output						RB		Please refer to “Control
				MC
Factory Default:					+24V	RC		Terminal Explanation”.
	FWD/STOP
					FWD
SINK Mode	REV/STOP					MO1
Sink					REV			Factory default:
Sw1	JOG
					JOG			indicates during operation
Source	E.F.
Please refer to Figure 4					EF	MO2		48V50mA
for wiring of SINK	Multi-step 1				MI1			Factory default:
mode and SOURCE
	Multi-step 2							Freq. Setting Indication
mode.					MI2
								48V50mA
	Multi-step 3
Factory					MI3	MO3		Factory default:
	Multi-step 4
default					MI4			Low-voltage Indication
	RESET
					MI5			48V50mA
	Accel/Decel prohibit					MCM		Multi-function
					MI6			Photocoulper Output
	Counter					AFM
					TRG			Analog Multi-function Output
	Digital Signal Common
					DCM			Terminal
* Don't apply the mains voltage directly						ACM		Factory default: Analog freq.
					E
								/ current meter 0~10VDC/2mA
to above terminals.
					+10V	E		Analog Signal common
		3			Power supply			Digital Frequency Output
					+10V 20mA	DFM
	5K	2			AVI			Terminal
								Factory default: 1:1
					Master Frequency
		1						Duty=50%
			4~20mA		0 to 10V 47K
								Digital Signal Common
		-10~+10V			ACI	DCM
					AUI			RS-485
						6	1
					ACM			Serial interface
	Analog Signal Common							1: EV 2: GND 3: SG-
					E			4: SG+ 5:NC
								6: for communication
Main circuit (power) terminals					Control circuit terminals			Shielded leads & Cable

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-3

VFD-B Series

Figure 3 for models of VFD-B Series 20 HP and above

VFD150B23A/43A, VFD185B23A/43A, VFD220B23A/43A, VFD300B23A/43A,

VFD370B23A/43A, VFD450B43A, VFD550B43A, VFD750B43A

DC chock
(optional)	VFDB
Jumper
Fuse/NFB(None Fuse Breaker)

	R(L1)					+1	-(minus sign)		Motor
						R(L1)	U(T1)		IM
	S(L2)					S(L2)
							V(T2)
	T(L3)					T(L3)			3~
							W(T3)
						E
							E
	Recommended Circuit				SA
						RB
					MC		RA
	when power supply					RC
	is turned OFF by a	OFF			ON
	fault output						RB		Please refer to “Control
					MC
						+24V	RC		Terminal Explanation”.
	Factory Default:	FWD/STOP
						FWD
	SINK Mode	REV/STOP					MO1
	Sink					REV			Factory default:
	Sw1	JOG
						JOG			indicates during operation
	Source
		E.F.				EF			48V50mA
	Please refer to Figure 4						MO2
	for wiring of SINK	Multi-step 1				MI1			Factory default:
	mode and SOURCE	Multi-step 2							Freq. Setting Indication
	mode.					MI2			48V50mA
		Multi-step 3
	Factory					MI3	MO3		Factory default:
		Multi-step 4
	default					MI4			Low-voltage Indication
		RESET
						MI5			48V50mA
		Accel/Decel prohibit					MCM		Multi-function
						MI6			Photocoulper Output
		Counter					AFM
						TRG			Analog Multi-function Output
		Digital Signal Common
						DCM			Terminal
	* Don't apply the mains voltage directly						ACM		Factory default: Analog freq.
						E
									/ current meter 0~10VDC/2mA
	to above terminals.					+10V	E		Analog Signal common
			3			Power supply			Digital Frequency Output
						+10V 20mA	DFM
		5K	2			AVI			Terminal
									Factory default: 1:1
						Master Frequency
			1						Duty=50%
				4~20mA		0 to 10V 47K
									Digital Signal Common
			-10~+10V			ACI	DCM
						AUI			RS-485
							6	1
						ACM			Serial interface
		Analog Signal Common							1: EV 2: GND 3: SG-
						E			4: SG+ 5:NC
									6: for communication
	Main circuit (power) terminals					Control circuit terminals			Shielded leads & Cable

3-4	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

Figure 4 Wiring for SINK mode and SOURCE mode

3

Sink

Sw1

Source

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-5

VFD-B Series

3.2 External Wiring

Power Supply

FUSE/NFB

Magnetic contactor

Input AC

Line Reactor

Zero-phase

Reactor

EMI Filter

R/L1

S/L2

T/L3

DC

+1

Choke

+2/B1

Braking

B2

Resistor

U/T1

V/T2

W/T3

Zero-phase

Reactor

Output AC

Line Reactor

Motor

	Items	Explanations
	Power	Please follow the specific power
		supply requirement shown in
	supply
		APPENDIX-A.
		There may be inrush current during
	Fuse/NFB	power up. Please check the chart of
	(Optional)	APPENDIX B and select the correct
		fuse with rated current. NFB is
		optional.
	Magnetic	Please do not use a Magnetic
		contactor as the I/O switch of the AC
	contactor
	(Optional)	drive, this will reduce the operating
		life cycle of the AC drive.
		In order to improve the input power
		factor, reduces harmonics and
		protection from AC line
	Input AC	disturbances. (Surge, switching
	Line	spike, power flick, etc.) AC line
	Reactor	reactor should be installed when the
	(Optional)	power supply capacity is 500kVA or
		more and exceeds 6 times of the
		inverter capacity, or the wiring
		distance within 10m.
	Zero-phase	Zero phase reactors are used to
		reduce radio noise specify when the
	Reactor	audio equipments installed near the
	(Ferrite	inverter. Good effective for noise
	Core	reduction on both the input and
	Common	output sides. Attenuation quality is
	Choke)	good in a wide range from AM band
	(Optional)	to 10Mhz. Appendix B for specifies
		zero phase reactors. (RF220X00A)
	EMI filter	To reduce the electromagnetic
		interference. Please refer to
	(Optional)
		Appendix B for detail.
	Braking	Used to reduce stopping time of the
		motor. Please refer to the chart on
	Resistor
		Appendix B for specific Braking
	(Optional)
		Resistors.
	Output AC	Motor surge voltage amplitudes
	Line	depending on the motor cable
	Reactor	length. For long motor cable
	(Optional)	application, it is necessary installed
		on the inverter output side.

3-6	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

3.3 Terminal Explanations

Terminal Symbol

Explanation of Terminal Function

R/L1, S/L2, T/L3

AC line input terminals

U/T1, V/T2, W/T3

AC drive output terminals motor connections

+1,+2

Connections for DC Link Reactor (optional)

3

+2/B1~B2

Connections for Braking Resistor (optional)

+2 ~ -(minus sign)

Connections for External Braking Unit (VFDB series)

+2/B1~ -(minus sign)

Earth Ground

3.4 Control Terminals Explanations

Terminal Symbols

Terminal Functions

Factory Settings

FWD

Forward-Stop command

REV

Reverse-Stop command

JOG

Jog command

EF

External fault

TRG

External counter input

MI1

Multi-function Input 1

MI2

Multi-function Input 2

MI3

Multi-function Input 3

Refer to Pr.04-04 to Pr.04-09

MI4

Multi-function Input 4

Multi-function Input Terminals

MI5

Multi-function Input 5

MI6

Multi-function Input 6

DFM

Digital Frequency Meter

Factory setting 1:1

(Open Collector Output)

(Maximum 48VDC, 50mA)

+24V

DC Voltage Source

(+24V, 20mA), used for source mode.

DCM

Digital Signal Common

Used as common for digital inputs

and used for sink mode.

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-7

VFD-B Series

	Terminal Symbols	Terminal Functions	Factory Settings
	RA	Multi-function Relay output	Resistor Load
		(N.O.) a	5A(N.O.)/3A(N.C.) 240VAC
		Multi-function Relay output
	RB		5A(N.O.)/3A(N.C.) 24VDC
		(N.C.) b
			Inductive Load
	RC	Multi-function Relay common	1.5A(N.O.)/0.5A(N.C.) 240VAC
			1.5A(N.O.)/0.5A(N.C.) 24VDC
			Refer to Pr.03-01 to Pr.03-03
	MO1	Multi-function output 1
		(Photocoupler)
	MO2	Multi-function output 2	Maximum 48VDC, 50mA
		(Photocoupler)	Refer to Pr.03-01 to Pr.03-03
	MO3	Multi-function output 3
		(Photocoupler)
	MCM	Multi-function output common	Maximum 48VDC, 50mA
	+10V	Potentiometer output power	+10V 20mA
		source
	AVI	Analog voltage Input	0 to +10V
	ACI	Analog current Input	4 to 20mA
	AUI	Auxiliary analog voltage input	-10 to +10V
	AFM	Analog output meter	0 to 10V, 2mA
	ACM	Analog control signal
		(common)

* Control signal wiring size: 18 AWG (0.75 mm2).

3-8	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

3.5 Main Circuit Wiring

1HP to 3HP (VFD007B23A, VFD007B43A, VFD007B21A, VFD015B21A,
VFD015B23A, VFD015B43A, VFD015B21B, VFD015B23B,
VFD022B23B, VFD022B43B)
						3
R	S	T	+2	U	V	W
/L1	/L2	/L3 +1	/B1 B2	/T1	/T2	/T3

Control Terminal

Torque: 4Kgf-cm (3 in-lbf)

Wire: 12-24 AWG

Power Terminal

Torque: 18 kgf-cm (15.6 in-lbf)

Wire Gauge: 10-18 AWG stranded wire, 12-18 AWG solid wire

Wire Type: Copper only, 75°C

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-9

VFD-B Series

3HP to 5HP (VFD022B21A, VFD037B23A, VFD037B43A)

+1 +2B1 - B2 U/T1 V/T2 W/T3

Screw Torque : 18Kgf-cm

Wire Gauge : 18~10AWG

R/L1 S/L2 T/L3

Control Terminal

Torque: 4Kgf-cm (3 in-lbf)

Wire: 12-24 AWG

Power Terminal

]Torque: 18 kgf-cm (15.6 in-lbf) Wire Gauge: 10-18 AWG

Wire Type: Stranded copper only, 75°C

3-10	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

7.5 HP to 15 HP (VFD055B23A, VFD055B43A, VFD075B23A, VFD075B43A, VFD110B23A, VFD110B43A)

3

POWER	3 MOTOR
	IM

Control Terminal

Torque: 4Kgf-cm (3 in-lbf)

Wire: 12-24 AWG

Power Terminal

Torque: 30Kgf-cm (26 in-lbf) Wire: 8-12 AWG

Wire Type: Stranded Copper only, 75°C

NOTE: If wiring of the terminal utilizes the wire with a 6AWG-diameter, it is thus necessary to use the Recognized Ring Terminal to conduct a proper wiring.

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-11

VFD-B Series

20 HP to 30 HP (VFD150B23A, VFD150B43A, VFD185B23A, VFD185B43A, VFD220B23A, VFD220B43A)

R/L1 S/L2 T/L3	+1	+2	-		V/T2 W/T3
POWER	DC(+)		DC( - )	IM	MOTOR
				3

Control Terminal

Torque: 4Kgf-cm (3 in-lbf)

Wire: 12-24 AWG

Power Terminal

Torque: 30Kgf-cm (26 in-lbf)

Wire: 2-8 AWG

Wire Type: Stranded Copper only, 75°C

NOTE: If wiring of the terminal utilizes the wire with a 1AWG-diameter, it is thus necessary to use the Recognized Ring Terminal to conduct a proper wiring.

3-12	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

40 HP to 50 HP 230V (VFD300B23A, VFD370B23A)

POWER	3
ALARM

CHARGE

R/L1 S/L2 T/L3	+1 +2	U/T1 V/T2 W/T3
POWER	Screw Torque:	IM	MOTOR
	200kgf-cm (173in-lbf)	3

Control Terminal

Torque: 4Kgf-cm (3 in-lbf)

Wire: 12-24 AWG

Power Terminal

Torque: 200kgf-cm (173 in-lbf)

Wire Gauge: 2/0 - 3/0 AWG

Wire Type: Stranded copper only, 75°C

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-13

VFD-B Series

40 HP to 60 HP 460V (VFD300B43A, VFD370B43A, VFD450B43A)

POWER

ALARM

CHARGE

R/L1 S/L2 T/L3

+1 +2 -

POWER

U/T1 V/T2

2/T3

IM MOTOR

3

Control Terminal

Torque: 4Kgf-cm (3 in-lbf)

Wire: 12-24 AWG

Power Terminal

Torque: 58.7kgf-cm (50.9 in-lbf) max.

Wire Gauge: 2-4AWG

Wire Type: Stranded copper only, 75°C

3-14	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

75-100 HP 460V (VFD550B43A, VFD750B43A)

				3
R/L1 S/L2 T/L3	+1	+2	U/T1 V/T2 W/T3
POWER		Screw Torque:	IM	MOTOR
		200kgf-cm (173in-lbf)	3

Control Terminal

Torque: 4Kgf-cm (3 in-lbf)

Wire: 12-24 AWG

Power Terminal

Torque: 200 kgf-cm (173 in-lbf)

Wire Gauge: 2/0-3/0 AWG

Wire Type: Stranded copper only, 75°C

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-15

VFD-B Series

3.6 Wiring Notes: PLEASE READ PRIOR TO INSTALLATION.

1.There are corresponding ring terminals which will be included with each unit (20-30HP), and please use the proper crimping tool by KST INC. P/N: KST-HDC38A for securing the conductor.

2.! CAUTION: Do not connect the AC power to the U/T1, V/T2, W/T3 terminals, as it will damage the AC drive.

3.! WARNING: Ensure all screws are tightened to the proper torque rating.

4.During installation, follow all local electrical, construction, and safety codes for the country the drive is to be installed in.

5.Ensure that the appropriate protective devices (circuit breaker or fuses) are connected between the power supply and AC drive.

6.Make sure that the leads are connected correctly and the AC drive is properly grounded. (Ground resistance should not exceed 0.1Ω .)

7.Use ground leads that comply with AWG/MCM standards and keep them as short as possible.

8.Multiple VFD-B units can be installed in one location. All the units should be grounded directly to a common ground terminal. The VFD-B ground terminals may also be connected in parallel, as shown in the figure below. Ensure there are no ground loops.

Forward running

9.When the AC drive output terminals U/T1, V/T2, and W/T3 are connected to the motor terminals U/T1, V/T2, and W/T3, respectively, the motor will rotate counterclockwise (as viewed from the shaft ends of the motor) when a forward operation command is received. To reverse the direction of motor rotation, switch over any of the two motor leads.

3-16	DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

VFD-B Series

10.Make sure that the power source is capable of supplying the correct voltage and required current to the AC drive.

11.Do not attach or remove wiring when power is applied to the AC drive.

12.Do not monitor the signals on the circuit board while the AC drive is in operation.

3

13.For the single-phase rated AC drives, the AC power can be connected to any two of the three input terminals R/L1, S/L2, T/L3. Note: This drive is not intended for the use with single-phase motors.

14.Route the power and control wires separately, or at 90°angle to each other.

15.If a filter is required for reducing EMI (Electro Magnetic Interference), install it as close as possible to AC drive. EMI can also be reduced by lowering the Carrier Frequency.

16.If the AC drive is installed in the place where a load reactor is needed, install the filter close to U/T1, V/T2, W/T3, side of AC drive. Do not use a Capacitor or L-C Filter (Inductance-Capacitance) or R-C Filter (Resistance-Capacitance), unless approved by Delta.

17.When using a GFCI (Ground Fault Circuit Interrupt), select current sensor with sensitivity of 200mA, and not less than 0.1-second detection to avoid nuisance tripping.

3.7 Motor Operation Precautions

1.When using the AC drive to operate a standard 3-phase induction motor, notice that the energy loss is greater than for an inverter duty motor.

2.Avoid running a standard induction motor at low speed. Under these conditions, the motor temperature may rise above the motor rating due to limited airflow produced by the motor’s fan.

3.When the standard motor operates at low speed, the output load must be decreased.

4.If 100% output torque is desired at low speed, it may be necessary to use a special “inverter-duty” rated motor.

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

3-17