DELTA VFD-B User Manual
230V Series
370.75 KW
1.0 50HP
460V Series
70.75 5KW
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!
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.)
AC input power must be disconnected before any maintenance. Do
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
A
A
CHAPTER 1 RECEIVING AND INSPECTION
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
Input Spec.
Output Spec.
Output Frequency Range
MODE : VFD007B23A
INPUT : 3PH 200-240V 50/60Hz 6.0A
OUTPUT : 3PH 0-240V 5.0A 1.9kVA 1HP
Freq. Range : 0.1~400Hz
ENCLOSURE: TYPE 1
1
Enclosure type
Serial Number & Bar Code
1.2 Model Explanation:
VFD
007
Series Name
23
B
007B23A0T0220001
Version Type
Input Voltage
21:Single phase 230V
23:Three phase 230V
43:Three phase 460V
B Series
pplicable motor capacity
007: 1 HP(0.7kW) 150: 20HP(15kW)
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
3
1.3 Series Number Explanation:
007B23A0
230V 3-phase 1HP(0.75kW)
If there is any nameplate information not corresponding to your purchase order or any
problem, please contact your distributor.
T
01
Production number
Production week
Production year 2003
Production factory
(Taoyuan)
Model
1
1-2
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
VFD-B Series
CHAPTER 2 STORAGE AND INSTALLATION
2.1 Storage
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
2
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
2
(0.6G) at 20Hz to 50Hz
m/s
Pollution Degree 2: good for a factory type environment.
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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. Allow sufficient space around the unit for heat dissipation.
120mm
Air Flow
50mm
FWD
PROG
REV
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.
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
3
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
V
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
FD007B21A/23A/43A, VFD015B21A/21B/23A/23B/43A
SA
ON
DC choke
(optional)
MC
MC
Jumper
+1
R(L1)
S(L2)
T(L3)
E
RB
RC
+24V
FWD
REV
JOG
EF
MI1
MI2
MI3
MI4
MI5
MI6
TRG
DCM
E
+10V
Power supply
+10V 20mA
AVI
Master Frequency
0 to 10V 47K
ACI
AUI
ACM
E
MO1
MO2
MO3
B2
U(T1)
V(T2)
W(T3)
E
RA
RB
RC
MCM
AFM
ACM
E
DFM
DCM
Motor
IM
3~
Please refer to “Control
Terminal Explanation”.
Factory default:
indicates during operation
48V50mA
Factory default:
Freq. Setting Indication
48V50mA
Factory default:
Low-voltage Indication
48V50mA
Multi-function
Photocoulper Output
Analog Multi-function Output
Te rm in al
Factory default: Analog freq.
/ current meter
Analog Signal common
Digital Frequency Output
Te rm in al
Factory default: 1:1
Duty=50%
Digital Signal Common
RS-485
Serial interface
1: EV 2: GND
5:NC
4: SG+
6: for communication
0~10VDC/2mA
3: SG-
VFD022B23B/43B
Fuse/NFB(None Fuse Breaker)
R(L1)
S(L2)
T(L3)
Recommended Circuit
when power supply
is turned OFF by a
fault output
Factory Default:
SINK Mode
Sink
Sw1
Source
Please refer to Figure 4
for wiring of SINK
mode and SOURCE
mode.
Factory
default
* Don't apply the mains voltage directly
to above terminals.
OFF
FWD/STOP
REV/STOP
JOG
E.F.
Multi-step 1
Multi-step 2
Multi-step 3
Multi-step 4
RESET
Accel/Decel prohibit
Counter
Digital Signal Common
3
5K
2
1
4~20mA
-10~+10V
Analog Signal Common
Main circuit (power) terminals
Control circuit terminals
Shielded leads & Cable
3-2
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AFMA
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
DC chock
(optional)
Fuse/NFB(None Fuse Breaker)
Jumper
R(L1)
S(L2)
T(L3)
2
4~20mA
SA
ON
MC
MC
Recommended Circuit
when power supply
is turned OFF by a
fault output
Factory Default:
SINK Mode
Sink
Sw1
Source
Please refer to Figure 4
for wiring of SINK
mode and SOURCE
mode.
Factory
default
* Don't apply the mains voltage directly
to above terminals.
OFF
FWD/STOP
REV/STOP
JOG
E.F.
Multi-step 1
Multi-step 2
Multi-step 3
Multi-step 4
RESET
Accel/Decel prohibit
Counter
Digital Signal Common
3
5K
1
-10~+10V
Analog Signal Common
VFDB
+1
R(L1)
S(L2)
T(L3)
E
RB
RC
+24V
FWD
REV
JOG
EF
MI1
MI2
MI3
MI4
MI5
MI6
TRG
DCM
E
+10V
Power supply
+10V 20mA
AVI
Master Frequency
0 to 10V 47 K
ACI
AUI
ACM
E
BR
MO2
MO3
BR
B2
W(T3)
MO1
-(minus sign)
U(T1)
V(T2)
E
RA
RB
RC
MCM
CM
E
DFM
DCM
RS-485
6 1
Serial interface
1: EV 2: GND
4: SG+
6: for communication
Please refer to “Control
Terminal Explanation”.
Factory default:
indicates during operation
48V50mA
Factory default:
Freq. Setting Indication
48V50mA
Factory default:
Low-voltage Indication
48V50mA
Multi-function
Photocoulper Output
Analog Multi-function Output
Te rm in al
Factory default: Analog freq.
/ current meter
Analog Signal common
Digital Frequency Output
Term in al
Factory default: 1:1
Duty=50%
Digital Signal Common
5:NC
Motor
IM
3~
3: SG-
VFD-B Series
3
0~10VDC/2mA
Main circuit (power) terminals
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Control circuit terminals
3-3
Shielded leads & Cable
VFD-B Series
Figure 3 for models of VFD-B Series 20 HP and above
VFD150B23A/43A, VFD220B23A/43A, VFD300B23A/43A,
VFD185B23A/43A,
VFD370B23A/43A, VFD450B43A, VFD550B43A, VFD750B43A
DC chock
Fuse/NFB(None Fuse Breaker)
R(L1)
S(L2)
T(L3)
Recommended Circuit
when power supply
is turned OFF by a
fault output
Factory Default:
SINK Mode
Sink
Sw1
Source
Please refer to Figure 4
for wiring of SINK
mode and SOURCE
mode.
Factory
default
* Don't apply the mains voltage directly
to above terminals.
SA
MC
OFF
FWD/STOP
REV/STOP
JOG
E.F.
Multi-step 1
Multi-step 2
Multi-step 3
Multi-step 4
RESET
Accel/Decel prohibit
Counter
Digital Signal Common
3
5K
1
ON
2
4~20mA
-10~+10V
Analog Signal Common
(optional)
Jumper
R(L1)
S(L2)
T(L3)
E
RB
RC
MC
+24V
FWD
REV
JOG
EF
MI1
MI2
MI3
MI4
MI5
MI6
TRG
DCM
E
+10V
Power supply
+10V 20mA
AVI
Master Frequency
0 to 10V 47K
ACI
AUI
ACM
E
+1
+1
VFDB
-(minus sign)
U(T1)
V(T2)
W(T3)
E
RA
RB
RC
MO1
MO2
MO3
MCM
AFM
ACM
DFM
DCM
6
Please refer to “Control
Terminal Explanation”.
Factory default:
indicates during operation
48V50mA
Factory default:
Freq. Setting Indication
48V50mA
Factory default:
Low-voltage Indication
48V50mA
Multi-function
Photocoulper Output
Analog Multi-function Output
Te rm in al
Factory default: Analog freq.
/ current meter
E
1
Analog Signal common
Digital Frequency Output
Te rm in al
Factory default: 1:1
Duty=50%
Digital Signal Common
RS-485
Serial interface
1: EV 2: GND
5:NC
4: SG+
6: for communication
Motor
IM
3~
3: SG-
0~10VDC/2mA
Main circuit (power) terminals
Control circuit terminals
3-4
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Shielded leads & Cable
Figure 4 Wiring for SINK mode and SOURCE mode
VFD-B Series
3
Sink
Sw1
Source
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3-5
VFD-B Series
3.2 External Wiring
Power Supply
FUSE/NFB
Magnetic
contactor
Items Explanations
Power
supply
Please follow the specific power
supply requirement shown in
APPENDIX-A.
There may be inrush current during
Fuse/NFB
power up. Please check the chart of
APPENDIX B and select the correct
(Optional)
fuse with rated current. NFB is
optional.
EMI Filter
R/L1 S/L2
U/T1 V/T2
T/L3
W/T3
Input AC
Line Reactor
Zero-phase
Reactor
+1
+2/B1
B2
Zero-phase
Reactor
Output AC
Line Reactor
DC
Choke
Braking
Resistor
Magnetic
contactor
(Optional)
Input AC
Line
Reactor
(Optional)
Zero-phase
Reactor
(Ferrite
Core
Common
Choke)
(Optional)
EMI filter
(Optional)
Please do not use a Magnetic
contactor as the I/O switch of the AC
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
disturbances. (Surge, switching
spike, power flick, etc.) AC line
reactor should be installed when the
power supply capacity is 500kVA or
more and exceeds 6 times of the
inverter capacity, or the wiring
distance within 10m.
Zero phase reactors are used to
reduce radio noise specify when the
audio equipments installed near the
inverter. Good effective for noise
reduction on both the input and
output sides. Attenuation quality is
good in a wide range from AM band
to 10Mhz. Appendix B for specifies
zero phase reactors. (RF220X00A)
To reduce the electromagnetic
interference. Please refer to
Appendix B for detail.
Motor
Braking
Resistor
(Optional)
Output AC
Line
Reactor
(Optional)
3-6
Used to reduce stopping time of the
motor. Please refer to the chart on
Appendix B for specific Braking
Resistors.
Motor surge voltage amplitudes
depending on the motor cable
length. For long motor cable
application, it is necessary installed
on the inverter output side.
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)
+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
3
REV Reverse-Stop command
JOG Jog command
EF External fault
TRG External counter input
MI1
MI2
MI3
MI4
MI5
MI6
Multi-function Input 1
Multi-function Input 2
Multi-function Input 3
Multi-function Input 4
Multi-function Input 5
Multi-function Input 6
Digital Frequency Meter
Refer to Pr.04-04 to Pr.04-09
Multi-function Input Terminals
Factory setting 1:1
DFM
(Maximum 48VDC, 50mA)
(+24V, 20mA), used for source mode.
Used as common for digital inputs
and used for sink mode.
+24V
DCM
(Open Collector Output)
DC Voltage Source
Digital Signal Common
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3-7
VFD-B Series
Terminal Symbols Terminal Functions Factory Settings
RA
RB
RC
MO1
MO2
MO3
MCM
+10V
Multi-function Relay output
(N.O.) a
Multi-function Relay output
(N.C.) b
Multi-function Relay common
Multi-function output 1
(Photocoupler)
Multi-function output 2
(Photocoupler)
Multi-function output 3
(Photocoupler)
Multi-function output common
Potentiometer output power
source
Resistor Load
5A(N.O.)/3A(N.C.) 240VAC
5A(N.O.)/3A(N.C.) 24VDC
Inductive Load
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
Maximum 48VDC, 50mA
Refer to Pr.03-01 to Pr.03-03
Maximum 48VDC, 50mA
+10V 20mA
AVI Analog voltage Input
ACI Analog current Input
AUI
AFM
Auxiliary analog voltage input -10 to +10V
Analog output meter 0 to 10V, 2mA
Analog control signal
ACM
(common)
* Control signal wiring size: 18 AWG (0.75 mm2).
0 to +10V
4 to 20mA
3-8
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3.5 Main Circuit Wiring
1HP to 3HP (VFD007B23A, VFD007B43A, VFD007B21A, VFD015B21A,
VFD015B23A, VFD015B43A, VFD015B21B, VFD015B23B,
VFD-B Series
VFD022B23B, VFD022B43B)
3
S
R
T
/
/
/
L3
L2
L1
+2
/
+1 B2
B1
V
U
/
W
/
/
T1
T3
T2
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
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3-9
VFD-B Series
3HP to 5HP (VFD022B21A, VFD037B23A, VFD037B43A)
+2
+1
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
-
B
B
1
U/T1 V/T2 W/T3
2
Screw Torque :
Wire Gauge :
18Kgf-cm
18~10AWG
3-10
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7.5 HP to 15 HP (VFD055B23A, VFD055B43A, VFD075B23A, VFD075B43A,
VFD110B23A, VFD110B43A)
VFD-B Series
3
POWER
IM
MOTOR3
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.
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3-11
VFD-B Series
20 HP to 30 HP (VFD150B23A, VFD150B43A, VFD185B23A, VFD185B43A,
VFD220B23A, VFD220B43A)
R/L1
S/L2
POWER
T/L3
+1-+2
+ DC DC
- ( ) ( )
IM
3
W/T3V/T2
MOTOR
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
40 HP to 50 HP 230V (VFD300B23A, VFD370B23A)
VFD-B Series
POWER
CHARGE
Screw Torque:
200kgf-cm
(173in-lbf)
POWER
ALARM
3
W/T3S/L2R/L1 T/L3 +2+1 U/T1 V/T2
IM
MOTOR
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 U/T1 V/T2 2/T3
POWER
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
+1
-
+2
IM
MOTOR
3
3-14
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
75-100 HP 460V (VFD550B43A, VFD750B43A)
VFD-B Series
3
T/L3S/L2R/L1
POWER
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
+1
+2
Scre w Torqu e:
200kgf-cm
(173in-lbf)
IM
3
V/T2U/T1
MOTOR
W/T3
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.
loops.
Ensure there are no ground
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.
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.
with single-phase motors.
Note: This drive is not intended for the use
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
3
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
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