DELTA VFD-B User Manual

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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.

VFD-B Series

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

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

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

VFD-B Series

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

Enclosure type

Serial Number & Bar Code

1.2 Model Explanation:

VFD

007

Series Name

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)

1-1

VFD-B Series

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.

Production number Production week Production year 2003 Production factory (Taoyuan)

Model

1-2

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

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

(0.6G) at 20Hz to 50Hz

m/s

Pollution Degree 2: good for a factory type environment.

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

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

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.

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

FD007B21A/23A/43A, VFD015B21A/21B/23A/23B/43A

DC choke (optional)

Jumper

R(L1) S(L2)

T(L3)

+24V FWD REV JOG

EF MI1 MI2 MI3 MI4 MI5 MI6 TRG DCM

+10V

Power supply +10V 20mA

AVI

Master Frequency 0 to 10V 47K

ACI

AUI

ACM

MO1

MO2

MO3

U(T1)

V(T2)

W(T3)

MCM

AFM

ACM

DFM

DCM

Motor

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

4~20mA

-10~+10V

Analog Signal Common

Main circuit (power) terminals

Control circuit terminals

Shielded leads & Cable

3-2

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)

4~20mA

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

-10~+10V

Analog Signal Common

VFDB

R(L1) S(L2)

T(L3)

+24V FWD REV JOG

EF MI1 MI2 MI3 MI4 MI5 MI6 TRG DCM

+10V

Power supply +10V 20mA

AVI

Master Frequency 0 to 10V 47 K

ACI AUI

ACM

MO2

MO3

W(T3)

MO1

-(minus sign)

U(T1)

V(T2)

MCM

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

3: SG-

VFD-B Series

0~10VDC/2mA

Main circuit (power) terminals

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.

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

4~20mA

-10~+10V

Analog Signal Common

(optional)

Jumper

R(L1) S(L2)

T(L3)

+24V FWD REV JOG

EF MI1 MI2 MI3 MI4 MI5 MI6 TRG DCM

+10V

Power supply +10V 20mA

AVI

Master Frequency 0 to 10V 47K

ACI AUI

ACM

VFDB

-(minus sign)

U(T1)

V(T2)

W(T3)

MO1

MO2

MO3

MCM

AFM

ACM

DFM

DCM

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

Motor

3: SG-

0~10VDC/2mA

Main circuit (power) terminals

Control circuit terminals

3-4

Shielded leads & Cable

Figure 4 Wiring for SINK mode and SOURCE mode

VFD-B Series

Sink

Sw1

Source

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

+2/B1

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.

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

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

3-7

VFD-B Series

Terminal Symbols Terminal Functions Factory Settings

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

3.5 Main Circuit Wiring

1HP to 3HP (VFD007B23A, VFD007B43A, VFD007B21A, VFD015B21A,

VFD015B23A, VFD015B43A, VFD015B21B, VFD015B23B,

VFD-B Series

VFD022B23B, VFD022B43B)

+1 B2

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

3-9

VFD-B Series

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

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

U/T1 V/T2 W/T3

Screw Torque :

Wire Gauge :

18Kgf-cm

18~10AWG

3-10

7.5 HP to 15 HP (VFD055B23A, VFD055B43A, VFD075B23A, VFD075B43A,

VFD110B23A, VFD110B43A)

VFD-B Series

POWER

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.

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

- ( ) ( )

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

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

VFD-B Series

POWER

CHARGE

Screw Torque:

200kgf-cm

(173in-lbf)

POWER

ALARM

W/T3S/L2R/L1 T/L3 +2+1 U/T1 V/T2

MOTOR

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

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

MOTOR

3-14

75-100 HP 460V (VFD550B43A, VFD750B43A)

VFD-B Series

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

Scre w Torqu e:

200kgf-cm

(173in-lbf)

IM 3

V/T2U/T1

MOTOR

W/T3

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.

CAUTION:

Do not connect the AC power to the U/T1, V/T2, W/T3 terminals, as it

will damage the AC drive.

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

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

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.

3-17

VFD-B Series

CHAPTER 4 DIGITAL KEYPAD OPERATION

This chapter describes the various controls and indicators found on the digital keypad/display

PU01. The information in this chapter should be read and understood before performing the

start–up procedures described in the chapter of parameter settings.

ª Description of the Keypad

ª Description of Display

ª Keypad Operation Modes & Programming Steps

VFD-PU01 Dimensions: mm (inch)

73.0 [2.87]

JOG

RUN

MODE

PROG

DATA

STOP

110.0 [4.33]

19.0 [0.75]

77.0 [3.03]

44.0 [1.73]

M4* 0.7(2X)

[

]

97.0 [3.82]

6.5 [0.26]

4-1

VFD-B Series

4.1 Description of the Digital Keypad VFD-PU01

JOG

By pressing JOG key. Initiates jog operation.

moves cursor to the left

UP and DOWN Key

Sets the parameter number and changes the numerical data, such as Master Frequency.

Left key

F H U

JOG

RUN

VFD-PU01

STOP

RESET

LED Display

Display frequency, current, voltage and error, etc.

Part Number

Status Display

Display the driver's current status

MODE

hanges between different

display mode.

STOP/RESET

RUN key

Display Message Descriptions

Display the AC drive Master Frequency.

Display the actual operation frequency present at terminals U/T1, V/T2, and W/T3.

User defined unit, where (U = F x Pr.00-05)

4-2

VFD-B Series

Display Message Descriptions

Display the output current present at terminals U/T1, V/T2, and W/T3.

Display the AC drive forward run status.

The AC drive reverse run status.

The counter value (C).

Display the specified parameter setting.

Display the actual value stored within the specified parameter.

External Fault.

Display “End” for approximately 1 second if input has been accepted. After a parameter value has been set, the new value is automatically stored in memory. To modify an entry,

use the

or keys.

Display “Err”, if the input is invalid.

4-3

VFD-B Series

4.2 Operation steps of the Digital Keypad VFD-PU01

Selecting mode

START

H U

MODE

Note

Setting parameters

F H U

In the selection mode, press

：

MODE

F H

MODE

to set the parameters.

F H U

MODE

move to previous display

F H U

F H

MODEMODE

GO START

F H U

Success to set parameter.

F H U

Input data error

NOTE

：

To shift data

START

H U

To modify data

START

H U

Setting direction

MODE

H U

to return the selecting mode.In the parameter setting mode, you can press

H U

F H U

4-4

VFD-B Series

CHAPTER 5 DESCRIPTION OF PARAMETER SETTINGS

Group 0: User Parameters a: This parameter can be set during operation.

00 - 00

00 - 01

Identity Code of AC Drive Factory setting: ##

Factory Setting

Rated Current Display of the AC drive Factory setting: #.#

Settings None Unit: 0.1 A

 This parameter displays the rated current of the AC drive. It is based on Pr.00-00, and is

read-only.

 Users can use the following table to check if the rated current of the AC drive is

corresponds to the identity code.

230V Series

KW 0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37

HP 1.0 2.0 3.0 5.0 7.5 10 15 20 25 30 40 50

Pr.00-00 04 06 08 10 12 14 16 18 20 22 24 26

Rated

current (A)

5.0 7.0 11 17 25 33 49 65 75 90 120 146

Max.

Carried

15KHz 15 KHz 9 KHz

Freq.

460V Series

KW 0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75

HP 1.0 2.0 3.0 5.0 7.5 10 15 20 25 30 40 50 60 75 100

Pr.00-00 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33

Rated

Current (A)

2.7 4.2 5.5 8.5 13 18 24 32 38 45 60 73 91 110 150

Max.

Carried

15 KHz 15 KHz 9 KHz 6 KHz

Freq.

00 - 02

Parameter Reset Factory Setting: 00

Settings 08 Keypad Lock

10 All parameters are reset to factory settings

 This setting allows the user to return all parameters to the factory default settings except

the fault records (Pr.06-08 ~ Pr06-11).

 If this parameter is set to 08, the operation function of VFD-PU01 keypad is disabled. At

this time, you should set Pr.00-02 to 00 to disable parameter lock function.

5-1

VFD-B Series

00 - 03

Start-up Display Page Selection

Factory Setting: 00

Settings 00 Display the Master Frequency (F)

01 Display the actual operation frequency (H)

02 Display the content of user-defined unit (U)

03 Multifunction display, [default setting: output current (A)]

04 FWD/REV command

 This setting determines the display mode after power is applied to the drive.

00 - 04

Content of Multi Function Display

Factory Setting: 00

Settings 00 Display the output current (A)

01 Display the counter value (C)

02 Display the content of PLC time (1.tt)

03 Display the DC BUS voltage (U)

04 Display the output voltage (E)

05 Display the power factor angle (n.)

06 Display the output power (P), unit: kW

07 Display actual motor speed (enable during vector control or Pulse

Generator feedback control) (HU)

08 Display the estimative value of the ration of torque (t)

09 Display PG numbers/10ms (G)

10 Display analog feedback signal value (b) (%)

11 Display AVI (U1.) (%)

12 Display ACI (U2.) (%)

13 Display AUI (U3.) (%)

 This parameter determines the content for Multi function Display. User also can view

other information by pressing the “LEFT” key on the VFD-PU01 when the display page is

at Multi function Display.

 The 100% of settings 11-13 is +10V or 20mA.

00 - 05

User Defined Coefficient K

Factory Setting: 1.00

Settings 0.01 to d 160.00 Unit: 0.01

 The coefficient K determines the multiplying factor for the user-defined unit.

The display value is calculated as follows:

U (user-defined unit) = Frequency Command x K (Pr.00-05)

H (actual output) = (actual output frequency) x K (Pr.00-05)

5-2

VFD-B Series

 The display window is only capable of showing five digits, yet you could use Pr.00-05 to

create larger numbers. The display windows use decimal points to signify numbers up

to seven digits as illustrated below:

Display Number Represented

99999 The absence of a decimal point indicates a five-digit integer.

9999.9

A signal decimal point between the middle and the right-most numbers is a true

decimal point. For example, the number 1234.5 would be displayed as “1234.5”.

A single decimal point after the right-most number is not a true decimal point;

99999.

instead it indicates that a zero follows the right-most number. For example, the

number 123450~123459 would be displayed as “12345.”

Two decimal points (one between the middle and the right-most numbers, and one

after the right-most number) are not true decimal points; instead they indicate that

9999.9. two zeros follow the right-most number. For example, the number

3456700~3456799 would be displayed as “3456.7.”.

00 - 06

Software Version Factory Setting: ###

Settings None

 The software version is read-only.

00 - 07

Password Decode Factory Setting: 00

Display 00-02 (times of wrong password)

Settings 1 to 65535 Unit: 1

 Function of this parameter is to decode the password that is to be input into Pr.00-08.

Input the correct password here so as to revise the parameters; the trials are limit to 3

times only. If the entered passwords are wrong consecutively, a blinking “codE” will

show up to caution the users to restart the AC drive in order to key in the correct

password again.

00 - 08

Password Input Factory Setting: 00

Settings 1 to 65535 Unit: 1

 To cancel the parameter lock, setting the parameter as 0. To lock all parameters, setting

a value other than 0 in the parameter as a password. To change the one of the

parameter settings of this AC drive, one must enter the correct password in Pr.00-07 to

activate this function. Be sure to keep the password in mind for later use.

 Display states:

5-3

VFD-B Series

00: no password 01: password has been set

Password Decode Flow Chart

00-08

Displays 0 when password entered correctly.

Correct Password

END

00-08

Displays 0 when password entered correctly.

00-07

Incorrect Password

END

00-07

3 chances to enter the correct password. 1st time displays "1" if password is incorrect. 2nd time displays "2", if password is incorrect. 3rd time displays "codE (blinking)

If the password was entered incorrectly after three tries, the keypad will be locked. Turn the power OFF/ON to re-enter the password.

00 - 09

Control methods Factory Setting: 00

Settings 00 V/F control

01 V/F + PG Control

02 Vector Control

03 Vector + PG Control

 This parameter determines the control methods of the AC drive.

00 - 10

Reserved

5-4

Group 1: Basic Parameters

VFD-B Series

01 - 00

Maximum Output Frequency (Fmax) Factory Setting: 60.00

Settings 50.00 to 400.00 Hz Unit: 0.01Hz

 This parameter determines the AC drive’s Maximum Output Frequency. All the AC drive

analog inputs (0 to +10V, 4 to 20mA, -10V to +10V) are scaled to correspond to the output

frequency range.

01 - 01

Maximum Voltage Frequency (Fbase) Factory Setting: 60.00

Settings 0.10 to 400.00Hz Unit: 0.01Hz

 This value should be set according to rated frequency of the motor as indicated on the

motor nameplate. Maximum Voltage Frequency determines the volts per hertz ratio. For

example, if the drive is rated for 460 VAC output and the Maximum Voltage Frequency is

set to 60Hz, the drive will maintain a constant ratio of 7.66 V/Hz (460V/60Hz=7.66V/Hz).

This parameter value must be equal to or greater than the Mid-Point Frequency

(Pr.01-03).

01 - 02

Maximum Output Voltage (Vmax) Unit: 0.1

Settings 230V series 0.1 to 255.0V Factory Setting: 220.0

460V series 0.1 to 510.0V Factory Setting: 440.0

 This parameter determines the Maximum Output Voltage of the AC drive. The Maximum

Output Voltage setting must be smaller than or equal to the rated voltage of the motor as

indicated on the motor nameplate. This parameter value must be equal to or greater than

the Mid-Point Voltage (Pr.01-04).

01 - 03

Mid-Point Frequency (Fmid) Factory Setting: 0.50

Settings 0.10 to 400.00Hz Unit: 0.01Hz

 This parameter sets the Mid-Point Frequency of the V/F curve. With this setting, the V/F

ratio between Minimum Frequency and Mid-Point frequency can be determined. This

parameter must be equal to or greater than Minimum Output Frequency (Pr.01-05) and

equal to or less than Maximum Voltage Frequency (Pr.01-01).

01 - 04

Mid-Point Voltage (Vmid) Unit: 0.1

Settings 230V series 0.1 to 255.0V Factory setting: 1. 7V

460V series 0.1 to 510.0V Factory setting: 3.4V

5-5

VFD-B Series

 This parameter sets the Mid-Point Voltage of any V/F curve. With this setting, the V/F

ratio between Minimum Frequency and Mid-Point Frequency can be determined. This

parameter must be equal to or greater than Minimum Output Voltage (Pr.01-06) and

equal to or less than Maximum Output Voltage (Pr.01-02). However, this parameter is

ineffective when Pr.11-00 is set to 1 to 4.

01 - 05

Minimum Output Frequency (Fmin) Factory Setting: 0.50

Settings 0.10 to 400.00Hz Unit: 0.01Hz

 This parameter sets the Minimum Output Frequency of the AC drive. This parameter

must be equal to or less than Mid-Point Frequency (Pr.01-03).

 The settings of 01-03, 01-04, 01-06 are invalid in Vector Control mode.

01 - 06

Minimum Output Voltage (Vmin) Unit: 0.1

Settings 230V series 0.1 to 255.0V Factory setting: 1. 7V

460V series 0.1 to 510.0V Factory setting: 3.4V

 This parameter sets the Minimum Output Voltage of the AC drive. This parameter must

be equal to or less than Mid-Point Voltage (Pr.01-04).

 The settings of Pr.01-01 to Pr.01-06 have to meet the agreement that Pr.01-02 ≥

Pr.01-04 ≥ Pr.01-06 and Pr.01-01 ≥ Pr.01-03 ≥ Pr.01-05.

01 - 07

Upper Bound of Output Frequency Factory Setting: 100

Settings 1 to 120% Unit: 1%

 This parameter must be equal to or greater than the Lower Bound of Output Frequency

(Pr.01-08). The Maximum Output Frequency (Pr.01-00) is regarded as 100%.

 Upper Bound of Output Frequency value = (Pr.01-00 x Pr.01-07)/100

01-07

Upper Bound Output Frequency

01-01

01-00

Maximum Output Frequency

Vol tag e

01-02

Maximum Output Vol tag e

01-04

Mid-point Vol tag e

01-06

Minimum Output Vol tag e

Minimum Output Freq.

01-08

Lower Bound Output Frequency

01-05

01-03

Mid-point Freq.

Output Frequency setting limit

Maximum Voltage Frequency (Base Frequency)

V/F Curve

5-6

VFD-B Series

01 - 08

Lower Bound of Output Frequency Factory Setting: 00

Settings 00 to 100% Unit: 1%

 The Upper/Lower Bound is to prevent operation error and machine damage.

 If the Upper Bound of Output Frequency is 50Hz and the Maximum Output Frequency is

60Hz, the Maximum Output Frequency will be limited to 50Hz.

 If the Lower Bound of Output Frequency is 10Hz, and the Minimum Output Frequency

(Pr.01-05) is set at 1.0Hz, then any Command Frequency between 1.0-10Hz will

generate a 10Hz output from the drive.

 This parameter must be equal to or less than the Upper Bound of Output Frequency

(Pr.01-07).

 The Lower Bound of Output Frequency value = (Pr.01-00 x Pr.01-08) /100

01 - 09

01 - 10

01 - 11

Acceleration Time 1 (Taccel 1) a Factory Setting: 10.0

Deceleration Time 1 (Tdecel 1) a Factory Setting: 10.0

Acceleration Time 2 (Taccel 2) a Factory Setting: 10.0

01 - 12

01 - 18

01 - 19

01 - 20

01 - 21

Deceleration Time 2 (Tdecel 2) a Factory Setting: 10.0

Acceleration Time 3 (Taccel 3)

Deceleration Time 3 (Tdecel 3)

Acceleration Time 4 (Taccel 4)

Deceleration Time 4 (Tdecel 4)

Factory Setting: 10.0

Settings 0.01 to 3600.0 sec Unit: 0.1/0.01sec

♦ Factory setting 60sec is for the models of 30 HP and above.

 Unit can be set by Pr.01-23.

 The Acceleration Time is used to determine the time required for the AC drive to ramp

from 0 Hz to its Maximum Output Frequency (Pr.01-00). The rate is linear unless

S-Curve is “Enabled.”

 The Deceleration Time is used to determine the time required for the AC drive to

decelerate from the Maximum Output Frequency (Pr.01-00) down to 0 Hz. The rate is

linear unless S-Curve is “Enabled.”

 The Acceleration/Deceleration Time 1, 2, 3, 4 is switched according to the Multi-Function

Input Terminals Setting. See Pr.04-04 to Pr.04-09 for more details.

5-7

VFD-B Series

 In the diagram shown below, the Acceleration/Deceleration Time of the AC drive is time

between 0 Hz to Maximum Output Frequency (Pr.01-00). Suppose the Maximum Output

Frequency is 60 Hz, Minimum Output Frequency (Pr.01-05) is 1.0 Hz, and

Acceleration/Deceleration Time is 10 seconds. The actual time for the AC drive to

accelerate from start-up to 60 Hz is 9.83 seconds and the deceleration time is also 9.83

seconds. ((60-1) x 10/60=9.83secs).

Frequency

01-00 Max. Output Freq.

Setting running Freq.

Time

Factory Setting: 1.0

01 - 13

Jog Acceleration Time

Accel Time

01-09 01-11 01-18 01-20

ccel/Decel Time Definition

Decel Time

01-10 01-12 01-19 01-21

Settings 0.1 to 3600.0 sec Unit: 0.1sec

01 - 22

Jog Deceleration Time

Factory Setting: 1.0

Settings 0.1 to 3600.0 sec Unit: 0.1sec

01 - 14

Jog Frequency

Factory Setting: 6.00

Settings 0.10 to 400.00Hz Unit: 0.01Hz

When the Jog command is “ON”, the AC drive will accelerate from Minimum Output



Frequency (Pr.01-05) to Jog Frequency (Pr.01-14). When the Jog command is “OFF”,

the AC drive will decelerate from Jog Frequency to zero. The Accel/Decel time is decided

by the Jog Accel/Decel time (Pr.01-13, Pr01-22).

During operation, the AC drive cannot perform Jog command. And during Jog operation,



other operation commands cannot be accepted, except command of FORWARD,

REVERSE and STOP keys on the digital keypad.

5-8

Frequency

01-14 JOG Freq.

01 - 15

JOG Accel Time

01-13

Auto-Acceleration / Deceleration

JOG Decel Time

01-13

Settings 00 Linear acceleration / deceleration

01 Auto acceleration, linear Deceleration.

Time

Factory Setting: 00

VFD-B Series

02 Linear acceleration, auto Deceleration.

03 Auto acceleration / deceleration

04 Auto acceleration / deceleration (refer to Accel/Decel Time

setting)

If this parameter is set to 03, the AC drive will accel/decel in the fastest and smoothest



means possible by automatically adjusting the time of accel/decel.

If this parameter is set to 04, the real accel/decel time will be equal to or more than



parameter Pr.01-09 ~Pr.01-12 and Pr.01-18 to Pr.01-21.

01 - 16

01 - 17

Acceleration S-Curve Factory Setting: 00

Deceleration S-Curve Factory Setting: 00

Settings 00 to 07

This parameter is used to ensure a smooth acceleration and deceleration. The S-curve



is enabled when sets at 01-07. Setting 1 offers the quickest S-curve and 07 offers the

longest and smoothest S-curve. The AC drive will not follow Accel/Decel Time in

Pr.01-09 to Pr.01-12. To Disable the S-curve, set Pr.01-16 and Pr.01-17 to 00.

NOTE: From the diagram shown below, the original setting Accel/Decel Time will be for

reference when the function of the S-curve is enabled. The actual Accel/Decel Time will be

determined based on the S-curve selected (01 to 07).

5-9

VFD-B Series

Freq.

ccel/Decel characteristics

(1), (2) Disabling S curve (3), (4) Enabling S curve

01 - 23

Unit for Accel/Decel Time

Settings 00 Unit: 1 sec

01 Unit: 0.1 sec

02 Unit: 0.01 sec

Factory Setting: 00

This parameter can be used to set the unit of Accel/Decel Time and the setting range of



Accel/Decel Time is also changed at the same time.

5-10

Group 2: Operation Method Parameters

VFD-B Series

02 - 00

Source of First Frequency Command

Factory Setting: 00

Settings 00 Master Frequency determined by the digital keypad or external

UP/DOWN keys of the Multi Function Inputs.

01 Master Frequency determined by analog signal DC 0V to +10V

(external terminal AVI)

02 Master Frequency determined by analog signal DC 4mA to

20mA (external terminal ACI).

03 Master Frequency determined by analog signal DC -10V to +10V

(external terminal AUI).

04 Master Frequency determined by RS-485 serial communication.

(RJ-11).

05 Master Frequency determined by RS-485 serial communication.

(RJ-11). It won’t memorize the frequency.

06 Combined usage of the master and auxiliary frequency

command Pr. 02-10, 02-11,02-12

02 - 13

Source of Second Frequency Command

Factory Setting: 00

Settings 00 Master Frequency determined by the digital keypad or external

UP/DOWN keys of the Multi Function Inputs.

01 Master Frequency determined by analog signal DC 0V to +10V

(external terminal AVI)

02 Master Frequency determined by analog signal DC 4mA to

20mA (external terminal ACI).

03 Master Frequency determined by analog signal DC -10V to +10V

(external terminal AUI).

04 Master Frequency determined by RS-485 serial communication.

(RJ-11).

05 Master Frequency determined by RS-485 serial communication.

(RJ-11). It won’t memorize the frequency.

06 Combined usage of the master and auxiliary frequency

command Pr. 02-10, 02-11,02-12

These parameters set the Frequency Command Source of the AC drive.



5-11

VFD-B Series

02 - 01

Source of First Operation Command

Factory Setting: 00

Settings 00 Controlled by the digital keypad

01 Controlled by the external terminals, keypad STOP enabled.

02 Controlled by the external terminals, keypad STOP disabled.

03 Controlled by the RS-485 communication interface, keypad

STOP enabled.

04 Controlled by the RS-485 communication interface, keypad

STOP disabled.

02 - 14

Source of Second Operation Command

Factory Setting: 00

Settings 00 Controlled by the digital keypad

01 Controlled by the external terminals, keypad STOP enabled.

02 Controlled by the external terminals, keypad STOP disabled.

03 Controlled by the RS-485 communication interface, keypad

STOP enabled.

04 Controlled by the RS-485 communication interface, keypad

STOP disabled.

When the AC drive is controlled by external terminal, please refer to Pr.02-05 for



detailed explanations.

The first /second frequency/operation command is enable/disable by Multi Function



Input Terminals. Please refer to the setting of Pr.04-04 ~ 04-09.

02 - 02

Stop Method Factory Setting: 00

Settings 00 STOP: ramp to stop; E.F. (External Fault) : coast to stop

01 STOP: coast to stop; E.F. : coast to stop

02 STOP: ramp to stop; E.F. : ramp to stop

03 STOP: coast to stop; E.F. : ramp to stop

The parameter determines how the motor is stopped when the AC drive receives a valid



stop command or External Fault.

1. Ramp: the AC drive decelerates to Minimum Output Frequency (Pr.01-05) according to

the deceleration time and then stops.

2. Coast: the AC drive stops output instantly upon command, and the motor free runs until it

comes to a complete stop.

3. The motor stop method is usually determined by the characteristics of the motor load

and the frequency of stop

5-12

VFD-B Series

(1) It is recommended to use “ramp to stop” for the personnel’s safety or to prevent the

materials from being wasted applications that the motor has to stop after the drive is

stopped. As for the deceleration time, it has to be set according to the field tuning.

(2) If the motor free run is okay or the loading inertia is great, it is recommended to set it

as “coast to stop”.

For example: blowers, punching machines, and pumps.

Motor Speed

Operation command

02 - 03

Freq.

Motor Speed

Time

RUN

Sto ps according to deceleration time

RUN

Free running to stop

PWM Carrier Frequency Selections Unit: 1

HP Setting range Factory setting

1-5HP 01-15KHz 15

7.5-25HP 01-15KHz 09

30-60HP 01-09KHz 06

75-100HP 01-06KHz 06

Time

 This parameter determines the PWM carrier frequency of AC drive.

Carrier Frequency Acoustic Noise

1kHz

15KHz

Significant

Minimal

Electromagnetic Noise,

Leakage Current

Minimal

Significant

Heat Dissipation

Minimal

Significant

 From the table, we see that the PWM carrier frequency has a significant influence on the

electromagnetic noise, heat dissipation of the AC drive, and the acoustic noise to the

motor.

5-13

VFD-B Series

02 - 04

Settings 00 Enable Forward/Reverse operation

01 Disable Reverse operation

02 Disabled Forward operation

 The parameter determines the direction that AC drive can operate.

02 - 05

Settings 00 FWD/STOP, REV/STOP

01 FWD/REV, RUN/STOP

02 3-wire Operation

 There are three different types of control modes:

Motor Direction Control Factory Setting: 00

2-wire/ 3-wire Operation Control Modes Factory Setting: 00

External Terminal

FWD:("OPEN":STOP)

("CLOSE":FWD)

REV:("OPEN": STOP)

("CLOSE": REV)

2-wire

02-05

FWD /STOP REV / STOP

FWD/STOP

REV/STOP

2-wire

3-wire

FWD/ REV RUN / STOP

RUN/STOP

FWD/STOP

STOP RUN

RUN/FWD

DCM

FWD:("OPEN":STOP)

("CLOSE":RUN)

REV:("OPEN": F

("CLOSE": REV)

DCM

FWD:("CLOSE":RUN) EF: ("OPEN":STOP)

REV:("OPEN": F

("CLOSE": REV)

DCM

WD)

FD-B

02- 06

Settings 00 Disable

01 Enable

Line Start Lockout Factory Setting: 00

5-14

VFD-B Series

 When enabled, the AC drive will not start when powered up with run commands applied.

To start in Line Start Lockout mode, the AC drive must see the run command go from stop

to run after power up. When Line Start Lockout is disable (also known as Auto-Start), the

drive will start when powered-up with run commands applied.

The Line Start Lockout feature does not guarantee the motor will never start under this

condition. It is possible the motor may be set in motion by a malfunctioning switch.

02- 07

Loss of ACI Signal (4-20mA) Factory Setting: 00

Settings 00 Decelerate to 0Hz.

01 Stop immediately and display “EF”.

02 Continue operation by the last frequency command.

 This parameter determintes the process when ACI is lost.

02 - 08

Up/Down Key Mode

Factory Setting: 00

Settings 00 Based on Accel/Decel Time

01 Constant speed

02 - 09

The Acce/Decel Speed of the UP/DOWN Key with Constant Speed

Factory Setting: 0.01

Settings 0.01~1.00 Hz/msec

 These parameters determine increasment/decreasment method of frequency command

when the Multi-Function Input parameters Pr.04-04~Pr.04-09 are set to 11 (Up command)

or 12 (Down command).

Pr.02-08=0: It will increase/decrease frequency command by the setting of accel/decel

speed.

Pr.02-08=1: It will accel/decel frequency command by Pr.02-09.

02 - 10

Source of the Master Frequency Command (FCHA)

Settings 00 Digital keypad

01 0 to +10V from AVI

02 4 to 20mA from ACI

03 -10 to +10Vdc from AUI

04 RS-485 communication interface

5-15

Factory Setting: 00

VFD-B Series

02 - 11

Source of the Auxiliary Frequency Command (FCHB)

Factory Setting: 00

Settings 00 Digital keypad

01 0 to +10V from AVI

02 4 to 20mA from ACI

03 -10 to +10Vdc from AUI

04 RS-485 communication interface

02 - 12

Combination of the Master and Auxiliary Frequency Command

Factory Setting: 00

Settings 00 Master frequency + Auxiliary frequency

01 Master frequency - Auxiliary frequency

 These three parameters (Pr.02-10~02-12) are enabled when Pr.02-00 or Pr.02-13 is set to

06. If they are enabled, the frequency command will be determined by these parameters.

02 - 15

Keyboard Frequency Command

Factory Setting: 60.00

Settings 0.00 ~ 400.00Hz Unit: 0.01

 This parameter can be used to set frequency command or read keypad frequency

command.

5-16

Group 3: Output Function Parameters

VFD-B Series

03 - 00

03 - 01

03 - 02

03 - 03

Multi-function Output Terminal (Relay contact point RA, RB, RC)

Multi-function Output Terminal MO1 Factory Setting: 01

Multi-function Output Terminal MO2 Factory Setting: 02

Multi-function Output Terminal MO3 Factory Setting: 20

Factory Setting: 08

Settings 00 to 28

Function Table List:

Setting Functions Descriptions

00 No function

The terminal will be activated when there is

01 AC Drive Operational

an output from the drive or RUN command is “ON”.

02 Master Frequency Attained

The output will be activated when the AC drive attains the Output Frequency Setting.

The output will be activated when Command

03 Zero speed

Frequency is lower than the Minimum Output Frequency. The output will be activated as long as

04 Over-Torque detection

over-torque is detected. (Refer to Pr.06-03 ~ Pr.06-05) The output will be activated when the output

05 Baseblock (B.B.) Indication

of the AC drive is shut off by external baseblock.

06 Low-Voltage Indication

07 Operation Mode Indication

The output will be activated when low voltage is detected. The output will be activated when operation command is controlled by external terminal. The output will be activated when faults occur

08 Fault Indication

(oc, ov, oH, oL, oL1, EF, cF3, HPF, ocA, ocd, ocn, GFF).

09 Desired Frequency Attained 1

10 PLC Program Running

11 PLC Program Step Completed

The output will be activated when the desired frequency (Pr.03-04) is attained. The Output will be activated when PLC Program is running. The Output will be activated for 0.5 sec when each multi-step speed is attained.

12 PLC Program Completed

The output will be activated for 0.5 sec when the PLC program cycle has completed

5-17

VFD-B Series

Setting Functions Descriptions

13 PLC Operation Paused

14 Terminal Count Value Attained

15 Preliminary Count Value Attained

16 17

Auxiliary Motor 1, 2 and 3

19 Heatsink overheat warning (OH1)

20 AC drive ready

21 Emergency Stop Indication

22 Desired Frequency Attained 2

23 Soft Braking Signal

Zero Speed Output Signal

Low-current Detection

Operation Indication (H>=Fmin)

Feedback Signal Error

User-defined low-voltage Detection

The output will be activated when PLC operation is paused.

The output will be activated when the counter reaches Terminal Count Value.

The output will be activated when the counter reaches Preliminary Count Value.

For the fan & pump control applications, one can use the Multi-function Output Terminals to define the auxiliary motor 1-3. Refer to CH 5-11 (PID Controls) and CH 5-12 (Fan and Pump Control).

When heatsink overheats, it will signal to prevent OH turn off the drive. > 85 oC (185oF)

ON, < 85

C (185 oF) OFF. The output will be activated when the drive is on and no abnormality detected. The contact will be activated once the drive’s emergency stop function is activated.

The output will be activated when the desired frequency (Pr.03-10) is attained. This function is used in conjunction with a VFDB Braking Unit. The output will be activated when the drive needs help braking the load. A smooth deceleration is achieved using this function. The output is always active unless there is an output frequency present at terminals U/T1, V/T2, and W/T3. The output will be activated once the drive’s current is too low. (Refer to Pr.06-12, 06-13) The output will be activated when there is output voltage from U, V, W. The output will be activated once the feedback signal is abnormal. (Refer to Pr.10-08, Pr.10-16) The output will be activated once the DC Bus voltage is too low. (Refer to Pr.06-16, Pr.06-17)

03 - 04

Desired Frequency Attained 1 Factory Setting: 0.00

Settings 0.00 to 400.00 Hz Unit: 0.01Hz

5-18

VFD-B Series

03 - 10

Desired Frequency Attained 2

Factory Setting: 0.00

Settings 0.00 to 400.00 Hz Unit: 0.01

 If a Multi-function output terminal is set to function as Desired Frequency Attained 1

(Pr.03-00 to Pr.03-03 = 09), then the output will be activated when the programmed

frequency is attained.

Freq.

Max. Output Freq.

Desired Freq. 1

03-04

Max. Freq. Attained Indication 03-00 to 03-03

Desired Freq. Attained 1 Indication 03-00 to 03-03

Detection range

2Hz

OFF

Detection range

4Hz

Detection range

-2Hz Time

OFF

Desired Freq. Attained 1 & Max. Freq. Attained

03 - 05

Analog Output Signal (AFM)

Factory Setting: 00

Settings 00 Analog Frequency Meter (from 0 to the Maximum Output

Frequency)

01 Analog Current Meter (from 0 to 250% of the rated AC drive

current)

02 Output voltage (from 0 to Pr.01-02)

03 Output frequency command (from 0 to the Maximum Frequency)

04 Output motor speed (from 0 to the Maximum Frequency)

Load power factor (cosθ = 90

to cosθ = 0o )

 This parameter determines the meaning of the 0~+10VDC output from AFM and ACM.

03 - 06

Analog Output Gain

Factory Setting: 100

Settings 01 to 200% Unit: 1%

 This parameter sets the voltage range of the analog output signal.

5-19

VFD-B Series

 When Pr.03-05 is set to 0, the analog output voltage is directly proportional to the output

frequency of the AC drive. With Pr.03-06 set to 100%, the Maximum Output Frequency

(Pr.01-00) of the AC drive corresponds to +10VDC on the AFM output.

 Similarly, if Pr.03-05 is set to 1, the analog output voltage is directly proportional to the

output current of the AC drive. With Pr.03-06 set to 100%, then 2.5 times the rated current

corresponds to +10VDC on the AFM output.

Note: Any type of voltmeter can be used. If the meter reads full scale at a voltage less than 10

volts, the parameter 03-06 should be set using the following formula:

Pr. 03-06 = ((meter full scale voltage)/10) x 100%

For Example: When using the meter with full scale of 5 volts, adjust Pr.03-06 to 50%. If

Pr.03-05 is set to 0, then 5Vdc will correspond to Maximum Output Frequency.

03 - 07

Digital Output Multiplying Factor

Factory Setting: 01

Settings 01 to 20 times Unit: 1

 This parameter determines the multiplying factor for the AC drives digital output frequency

at the digital output terminals (DFM-DCM). The number of output pulses per second is

equal to the AC drive output frequency multiplied by Pr.03-07. (Pulse per second = actual

output frequency x Pr.03-07)

03 - 08

Terminal Count Value

Factory Setting: 00

Settings 00 to 65500 Unit: 1

 The parameter determines the value of the internal counter. The internal counter can be

triggered by the external terminal TRG. Upon completion of counting, the specified output

terminal will be activated. (Pr.03-00, to Pr.03-03 set to 14).

 When the display shows c5555, the drive has counted 5,555 times. If display shows

c5555., it means that real counter value is between 55,550 to 55,559.

03 - 09

Preliminary Count Value

Factory Setting: 00

Settings 00 to 65500 Unit: 1

 When the counter value is counted up from “1” to the set value of this parameter, the

corresponding multi-function output terminal will be activated, when set to 15 (Preliminary

Count Value Setting). The corresponding multi-function output terminal will be deactivated

upon completion of Terminal Count Value Attained.

5-20

The timing diagram:

VFD-B Series

Display (Pr.00-04=01)

TRG

Counter Trigger

Preliminary Count Value (Pr. 03-00~Pr. 03-03=15)

Terminal Count Value (Pr. 03-00~Pr. 03-03=14)

Ex:03-08=5,03-09=3

The width of trigger signal should not be less than 2ms(<250 Hz)

2msec

03 - 11

EF Active when Preliminary Count Value Attained Factory Setting: 00

Settings 00 No function.

01 Preliminary count value attained, EF active.

 If this parameter is set to 01, When the desired value of counter is attained, the AC drive

treat it as a fault, the drive will stop and show the “cEF” message on the display.

03 - 12

Fan Control Factory Setting: 00

Settings 00 Always fan on

01 Power off 1 minute later, fan off

02 Run and fan on, stop and fan off

03 Preliminary temperature attained, Fan start to run

 This parameter determines the operation mode of cooling fan.

5-21

VFD-B Series

Group 4: Input Function Parameters

04 - 00

AVI Analog Input Bias

a Factory Setting: 0.00

Settings 0.00 to 200.00% Unit: 0.01%

04 - 01

AVI Bias Polarity

Factory Setting: 00

Settings 00 Positive Bias

01 Negative Bias

04 - 02

AVI Input Gain

a Factory Setting: 100

Settings 1 to 200% Unit: 1%

04 - 03

AVI Negative Bias, Reverse Motion Enabled

Factory Setting: 00

Settings 00 Forward motion only

01 Forward and reverse motion enabled. Forward motion with

positive bias. Reverse motion with negative bias.

02 Forward and reverse motion enabled. Forward and Reverse

motion with positive or negative bias. Select direction via the keypad or external terminals.

04 - 11

ACI Analog Input Bias

a Factory Setting: 0.00

Settings 0.00 to 200.00% Unit: 0.01%

04 - 12

ACI Bias Polarity

Factory Setting: 00

Settings 00 Positive Bias

01 Negative Bias

04 - 13

ACI Input Gain

a Factory Setting: 100

Settings 01 to 200% Unit: 1%

04 - 14

ACI Negative Bias, Reverse Motion Enable

Factory Setting: 00

Settings 00 No ACI Negative bias command

01 Negative bias, REV motion enabled

02 Negative bias, REV motion disabled

04 - 15

AUI Analog Input Bias

a Factory Setting: 0.00

Settings 0.00 to 200.00% Unit: 0.01%

04 - 16

AUI Bias Polarity

Factory Setting: 00

Settings 00 Positive Bias

01 Negative Bias

5-22

VFD-B Series

04 - 17

AUI Input Gain

a Factory Setting: 100

Settings 01 to 200% Unit: 1%

04 - 18

No AUI Negative bias command

Factory Setting: 00

Settings 00 No ACI Negative bias command

01 Negative bias, REV motion enabled

02 Negative bias, REV motion disabled

 Pr.04-00 ~ 04-03, Pr.04-11 ~ 04-18 are used when the source of frequency command is

the analog signal. Refer to the following examples.

Example 1:

Max.

60Hz

30Hz

0Hz

Pr.01-00

0V 4m

5V 12m

Factory Settings

Pr.01-00=60Hz--Max. output Freq. Pr.04-11=0%--bias adjustment Pr.04-12 =0-- bias polarity Pr.04-13=100% -- pot. freq. gain Pr.04-14=0 -- REV disable in negative bias

10V 20m

Output Freq.

Example 2:

In this example with the potentiometer set to 0V the Output Frequency is 10 Hz. The mid-point of the potentiometer becomes 40 Hz. Once the Maximum Output Frequency is reached any further increase of the potentiometer will not increase output frequency. (If you want to use the range of 60Hz, please refer to the example 3.) The value of external input voltage/current 0-8.33V (4-13.33mA) corresponds to the setting frequency 0-60Hz.

Pr.01-00

60Hz

Bias Adjustment

10Hz

0Hz

Max. Output Freq.

0V 4m

5V 12mA

10V 20m

Factory Settings

Pr.01-00=60Hz--Max. output Freq. Pr.04-11=16.7%-- bias adjustment Pr.04-12=0 -- bias polarity Pr.04-13=100% -- pot. freq. gain Pr.04-14=0 -- REV motion disable in negative bias

5-23

VFD-B Series

Example 3:

The example also shows the popular method. The whole scale of the potentiometer can be used as desired. In addition to signals of 0 to 10V and 4 to 20mA, the popular voltage signals also include signals of 0 to 5V, 20 to 4mA or that under 10V. Regarding the setting, please refer to the following examples.

Pr.01-00

60Hz

Max. Output Freq.

10V 12V

10-0Hz

= 2V

Pr.04-11 = X 100%

Bias Adjustment

10Hz

-2V XV

0Hz

0V 10V

4mA

20mA

Pr. 04-13 = X 100% 83.3% =

Negative bias: 60-10Hz

10V

100

XV =

Example 4:

This example shows a potentiometer range of 0 to 5 Volts. In addition to adjust gain, you also can set Pr. 01-00 to 120Hz.

Max. Output Freq.

Pr.01-00

60Hz

30Hz

Gain adjustment

Factory Settings

Pr.01-00=60Hz--Max. output Freq. Pr.04-11=0.0% bias adjustment Pr.04-12=0 -- bias polarity Pr.04-13=200% -- pot. freq. gain Pr.04-14=0 -- REV motion disable in negative bias

Calculation of gain

10V

)X100% = 200%

Example 5:

In this example a 1-volt negative bias is used. In a noisy environment, it is advantageous to use negative bias to provide a noise margin (1V in this example).

Pr.01-00

60Hz 54Hz

Negative bias 6H

0Hz

Max. Output Freq.

10V

Factory Settings

Pr.01-00=60Hz--Max. output Freq. Pr.04-11=10.0% -- bias adjustment Pr.04-12=1 -- bias polarity Pr.04-13=100% -- pot. freq. gain Pr.04-14=0 -- Rev. motion disable in negative bias

5-24

VFD-B Series

Example 6:

In this example, a negative bias is used to provide a noise margin. Also a potentiometer frequency gain is used to allow the Maximum Output Frequency to be reached.

Max. Output Freq.

Pr.01-00

60Hz

Bias adjustment

Factory Settings

Pr.01-00=60Hz--Max. output Freq. Pr.04-11=10%--bias adjustment Pr.04-12=1 -- bias polarity Pr.04-13=111% -- pot. freq. gain Pr.04-14=0 -- REV. motion disable in negative bias

Calculation of gain

Pr.04-13=(

10V

)X100%=111%

Negative bias 6.6Hz

0Hz

10V

Example 7:

In this example, the potentiometer is programmed to run a motor in both forward and reverse direction. A motor will be idle when the potentiometer position is at mid-point of its scale. Using this example will disable the external FWD and REV controls.

Pr.01-00

60Hz

30Hz

REV

Max. Output Freq.

FWD

0Hz

30Hz

60Hz

10V

Factory Settings

Pr.01-00=60Hz--Max. output Freq. Pr.04-11=50%--bias adjustment Pr.04-12=1 -- bias polarity Pr.04-13=200% -- pot. freq. gain Pr.04-14=1 -- REV motion enable in negative bias

Example 8:

In this example, the option of anti-slope is shown. Anti-slope is used in an application where control of pressure, temperature, or flow is needed. Under a high pressure or flow situation, a sensor will generate a large signal such as 20 mA or 10V. With anti-slope enable, the large signal will slow or stop the AC drive. The limit in this application is can’t change the direction of run. For AC drive, it just can run in reverse direction.

5-25

VFD-B Series

Max. Output Freq.

anti-slope

04 - 04

04 - 05

04 - 06

04 - 07

04 - 08

04 - 09

Pr.01-00

60Hz

0Hz

0V 4m

Multi-function Input Terminal (MI1)

Multi-function Input Terminal (MI2)

Multi-function Input Terminal (MI3)

Multi-function Input Terminal (MI4)

Multi-function Input Terminal (MI5)

Multi-function Input Terminal (MI6)

Settings 00 to 36

10V 20m

Factory Settings

Pr.01-00=60Hz--Max. output Freq. Pr.04-11=100%--bias adjustment Pr.04-12=1 -- bias polarity Pr.04-13=100% -- pot. freq. gain Pr.04-14=1 -- REV. motion enable in negative bias

Factory Setting: 01

Factory Setting: 02

Factory Setting: 03

Factory Setting: 04

Factory Setting: 05

Factory Setting: 06

Settings

Parameters & Functions Table:

Value Functions

00 No Function

01 Multi-Step Speed Command 1

02 Multi-Step Speed Command 2

03 Multi-Step Speed Command 3

04 Multi-Step Speed Command 4

05 External Reset (NO)**

Descriptions

The purpose of this setting is to provide isolation for unused Multi-Function Input Terminals. Any unused terminals should be programmed to 0 to insure they have no effect on drive operation.

Parameter values 1, 2, 3, 4 program any four of the following Multi-Function Input Terminals for multi-step speed command function. These four inputs select the multi-step speeds defined by Pr.05-00 to Pr.05-14 as shown in the following diagram. Note: Pr.05-00 to Pr.05-14 can also control output speed by programming the AC drive’s internal PLC function. There are 17 step speed frequencies (including Master Frequency and Jog Frequency) to select for application.

Parameter value 5 programs a Multi-Function Input Terminal to be an External Reset. Note: the External Reset has the same function as the Reset key on the Digital keypad. After fault such as O.H., O.C. and O.V. are clear, this input can be used to reset the drive.

5-26

VFD-B Series

Value Functions

06 Accel/Decel Inhibit

Accel/Decel Time Selection

Command 1

Accel/Decel Time Selection

Command 2

09 External Base Block (NO)**

10 External Base Block (NC)***

11 Increase Master Frequency

12 Decrease Master Frequency

Descriptions

Parameter value 6 programs Multi-Function Input Terminal: for Accel/Decel Inhibit. When the command is active, acceleration and deceleration is stopped and the AC drive maintains a constant speed.

Parameter value 7, 8 programs any two of Multi-Function Input Terminals to select the one of four Accel/Decel Time. (Pr.01-09 to Pr.01-12, Pr.01-18 to Pr.01-21)

Parameter values 9, 10 program Multi-Function Input Terminals for external Base Block control. Value 9 is for normally open (N.O.) input, and value d10 is for a normally close (N.C.) input.

Note:

When a Base-Block signal is received, the AC drive will stop all output and the motor will free run. When base block control is deactivated, the AC drive will start its speed search function and synchronize with the motor speed, and then accelerate to Master Frequency.

Parameter values 11, 12 program the Multi-Function Input Terminals to incrementally increase/ decrease the Master Frequency each time an input is received. Please refer to Pr.02-08, 02-09.

13 Counter Reset

14 Run PLC Program

15 Pause PLC Program

Auxiliary Motor No.1 output

failure Auxiliary Motor No.2 output

failure Auxiliary Motor No.3 output

failure

Emergency Stop (NO)**

20 Emergency Stop (NC)***

Parameter value 13 programs Multi Function Input Terminal to reset the counter.

Parameter value 14 programs Multi-Function Input Terminal to enable the AC drive internal PLC program. Parameter value d15 programs an input terminal to pause the PLC program. Note: Pr.05-00 to Pr.05-16 defines the PLC program.

Parameter value 16 to 18 program Multi-Function Input Terminal to disable the corresponding relay of the AC drive multi-function output terminals, Pr.03-00 to 3-03 (MO1 to MO3).

Parameter value 19 to 20 program Multi-Function Input Terminal to the AC drive to receive the signals of malfunction and emergency stop. Please press “RESET” after fault has been cleared.

5-27

VFD-B Series

Value Functions

∗21

∗22

Master Frequency Selection AVI /ACI

Master Frequency Selection AVI/AUI

Operation Command Selection

keypad/external

24 Auto accel/decel mode disable

Forced Stop (NC)***

26 Forced Stop (NO)**

Descriptions

Pr.02-00 will automatically be disabled once this parameter value 21 is enabled; the situation will be determined by the terminals. If the terminal is open, it is AVI; if closed, it is ACI otherwise. Pr.02-00 will automatically be disabled once this parameter value 22 is enabled; the situation will be determined by the terminals. If the terminal is open, it is AVI; if closed, it is AUI otherwise. Pr.02-01 will automatically be disabled once this parameter value 21 is enabled; the situation will be determined by the terminals. If the terminal is open, it is via keypad; if closed, it is via the external terminals otherwise.

If enables, the auto accel/decel mode set by Pr.01-15 will be disabled

These two parameters function is the same as the “STOP” command. It won’t display any error message. Once parameter value 25 or 26 occurs, you need to press “RUN” to run AC drive.

27 Parameter lock enable

28 PID function disabled

29 Jog Fwd/Rev command

30 External Reset (NC)***

Source of second frequency

command enabled

Source of second operation

command enabled

33 One shot PLC

When this setting is enabled, all parameters will be locked, Read/write parameters is disabled.

When this setting is enabled, PID function will be disabled.

It will be effective only when external terminal JOG is active.

The function is the same as setting 05 but it uses in normal close.

These two functions are used to select the first/second frequency/operation command source.

The function is the same as setting 14 but the trigger signal is a one shot pulse, for example: a push button input. It can be cancel by “STOP” command.

Proximity sensor input for

simple Index function

This function should be used with Pr.04-23 ~ Pr.04-25.

5-28

VFD-B Series

Value Functions

35 Output Shutoff Stop (NO)**

AC drive will stop output and the motor free run if one of these settings is enabled. If the state of terminal is changed, AC drive will restart from 0Hz.

36 Output Shutoff Stop (NC)***

∗ Setting 21, 22: you just can set one of them at one time.

** NO: Normal Open input.

*** NC: Normal Close input.

Frequency

Master Freq.

RUN/STOP PU External terminal communication

Accel/Decel time 1 & 2 Multi-function Input Terminals Pr.04-04 to Pr.04-09(MI1 to MI6 7)

Accel/Decel time 3 & 4 Multi-function Input Terminals Pr.04-04 to Pr.04-09(MI1 to MI6 8)

Acceleration

Accel time 3

Accel time 2

01-11

Accel time 1

01-09

11223

OFF

Accel time 4

01-20

01-18

Accel/Decel Time and Multi-function Input Terminals

Descriptions

Decel time 1

01-10

Delceleration

Decel time 2

01-12

Decel time 3

01-19

Decel time 4

01-21

Time

5-29

VFD-B Series

Frequency

1st step speed Mult i-func tion Terminal Pr.04-04 to Pr.04-09 (Mi1 to MI6 1)

2nd step speed Mult i-func tion Terminal Pr.04-04 to Pr.04-09 (Mi1 to MI6 2)

3rd step speed Mult i-func tion Terminal Pr.04-04 to Pr.04-09 (MI1 to MI6 3)

4th step speed Mult i-func tion Terminal Pr.04-04 to Pr.04-09 (MI1 to MI6 4)

Run Signal

Jog Freq.

05-02

05-01

05-00

Master Speed

2 3 4 5 6 7 8 9 101112131415

OFF

Mu lt i-Step Speed via Exte rnal Termin al s

05-05

05-04

05-03

ON ON ON

05-06

05-07

05-08

05-09

05-10

05-11

ON ON

05-12

05-13

JOG Freq.

01-14

05-14

04 - 10

Digital Terminal Input Debouncing Time

Factory Setting: 1

Settings 1 to 20m sec Unit: 1

 This parameter is to delay and to check the signals from digital input terminals. 1 unit is

2 msec, 2 units are 4 msec, etc. The delay time is to check if there is any noise that

causes the digital terminal malfunction.

04 - 19

AVI Analog Input Delay

Factory Setting: 0.05

Settings 0.00 to 10.00 Sec Unit: 0.01

04 - 20

ACI Analog Input Delay

Factory Setting: 0.05

Settings 0.00 to 10.00 Sec Unit: 0.01

04 - 21

AUI Analog Input Delay

Factory Setting: 0.05

Settings 0.00 to 10.00 Sec Unit: 0.01

04 - 22

Analog Input Frequency Resolution Factory Setting: 01

Settings 00 0.01Hz

01 0.1Hz

5-30

VFD-B Series

04 - 23

Gear Ratio for Simple Index Function Factory Setting: 200

Settings 4 ~ 1000 Unit: 1

04 - 24

Settings

04 - 25

Index Angle for Simple Index Function Factory Setting: 180.0

0.0 ~360.0°

Deceleration Time for Simple Index Function

Factory Setting: 0.00

Unit: 0.1

Settings 0.00 ~100.00 sec Unit: 0.01

 The simple index function is to position the mechine at the same position when it stops.

The function should be used with the function 34 of Multi-Function Input Terminals.

 The system diagram is shown below. The mechine is drived by the gear motor or other

reduction gear. The trigger position of sensor is used as the original point of index

angle. When the stop command is accepted, the AC drive will not decelerate until the

sensor is trigged, then the AC drive begin to decelerate and stop according to the

Pr.04-24 and Pr.04-25.

5-31

VFD-B Series

Group 5: Multi-step Speed and PLC (Process Logic Control) Parameters

05 - 00

05 - 01

05 - 02

05 - 03

05 - 04

05 - 05

05 - 06

05 - 07

05 - 08

05 - 09

05 - 10

05 - 11

05 - 12

05 - 13

05 - 14

1st Step Speed Frequency

2nd Step Speed Frequency

3rd Step Speed Frequency

4th Step Speed Frequency

5th Step Speed Frequency

6th Step Speed Frequency

7th Step Speed Frequency

8th Step Speed Frequency

9th Step Speed Frequency

10th Step Speed Frequency

11th Step Speed Frequency

12th Step Speed Frequency

13th Step Speed Frequency

14th Step Speed Frequency

15th Step Speed Frequency

Factory Setting: 0.00

Settings 0.00 to 400.00 Hz Unit: 0.01Hz

 The Multi-Function Input Terminals (refer to Pr.04-04 to 04-09) are used to select one of

the AC drive Multi-Step speeds. The speeds (frequencies) are determined by Pr.05-00

to 05-14 shown above. Also can be accompanied with Pr.05-15 to 05-31 for PLC

programs.

05 - 15

PLC Mode Factory Setting: 00

Settings 00 Disable PLC operation

01 Execute one program cycle

02 Continuously execute program cycles

03 Execute one program cycle step by step

04 Continuously execute program cycles step by step

 This parameter selects the mode of PLC operation for the AC drive. The AC drive will

change speeds and directions according to the user’s desired programming.

5-32

VFD-B Series

Example 1 (Pr.05-15 = 1):

Execute one cycle of the PLC program. Its relative parameter

settings are:

Pr.05-00 to 05-14: 1st to 15th step speed (sets the frequency of each step speed)

Pr.04-04 to 04-09: Multi-Function Input Terminals (set one multi-function terminal as

14 - PLC auto-operation).

Pr.03-00 to 03-03: Multi-Function Output Terminals (set a Multi-Function Terminal as

10-PLC running indication, 11-PLC step completed or 12-PLC program completed).

Pr.05-16: Direction of operation for the 1st to 15th step speed.

Pr.05-17 to 05-31: Operation time setting of the 1

to 15th step speed.

Program operation command

Program operation indication

Step operation indication

Program operation fulfillment indication

Note: The above diagram shows one complete PLC cycle. To restart the cycle, turn the PLC

program off and on again.

Example 2 (Pr.05-15 = 2): Continuously executes program cycles:

The diagram above shows the PLC program stepping through each speed. Set Pr.05-15 to 2

continuously executes the program. To stop the PLC program, one must either pause the

program or turn it off. (Refer to Pr.04-04 to 04-09 values 14 and 15).

5-33

VFD-B Series

Example 3 (Pr.05-15 = 3) Execute one cycle step by step:

The example below shows how the PLC can perform one cycle at a time, within in a complete

cycle. Each step will use the accel/decel times in Pr.01-09 to Pr.01-12. It should be noticed

that the time each step spends at its intended frequency is diminished, due to the time spent

during accel/decel.

Frequency

Program operation command

Program operation indication

Step operation indication

OFF

05-00

12 3 4

05-17

PLC operation execution one cycle step by step

05-02

05-01

05-18

05-19

05-03

05-20

05 - 16

PLC Forward/Reverse Motion

Factory Setting: 00

Settings 00 to 32767

This parameter controls the direction of motion for the Multi-Step Speeds Pr.05-00 to



Pr.05-14 during PLC mode. All other direction commands are invalid during the PLC

Time

mode.

Note:

The equivalent 15-bit number is used to program the forward/reverse motion for each of

the 15 speed steps. The binary notation for the 15-bit number must be translated into

decimal notation and then entered.

5-34

VFD-B Series

Weights

Bit

Weights

Bit

123456789101112131415 0

100111000110010 0

0=Forward 1=Reverse

Direction of Pr.05-001st speed for

Direction of Pr.05-012nd speed for

Direction of Pr.05-023rd speed for

Direction of Pr.05-034th speed for

Direction of Pr.05-045th speed for

Direction of Pr.05-056th speed for

Direction of Pr.05-067th speed for

Direction of Pr.05-078th speed for

Direction of Pr.05-089th speed for

Direction of Pr.05-0910th speed for

Direction of Pr.05-1011th speed for

Direction of Pr.05-1112th speed for

Direction of 1 Pr.05-123th speed for

Direction of Pr.05-1314th speed for

Direction of Pr.05-1415th speed for

0=Forward

1=Reverse

Direction of Pr.05-00, 1st speed = Forward

Direction of Pr.05-01,2nd speed=Reverse

Direction of ,Pr.05-02 3rd speed=Forward

Direction of ,Pr.05-03 4th speed=Forward

Direction of ,Pr.05-04 5th speed=Reverse

Direction of Pr.05-05,6th speed=Reverse

Direction of Pr.05-06,7th speed=Reverse

Direction of Pr.05-07,8th speed=Forward

Direction of Pr.05-08,9th speed=Forward

Direction of Pr.05-09,10th speed=Forward

Direction of Pr.05-10,11th speed=Reverse

Direction of Pr.05-11,12th speed=Reverse

Direction of 1Pr.05-12, 3th speed=Forward

Direction of Pr.05-13,14th speed=Forward

The setting value = bit14x2 +14bit13x2 +....+bit2x2 +bit1x2 +bit0x2

= 1x 2 +141x2 +1x2 +1x2 +1x2 +1x2 +1x2

11106541

13 2 1 0

Direction of Pr.05-14,15th speed=Reverse

=16384+2048+1024+64+32+16+2 =19570

Setting 05-16

NOTE:

2 =16384

2=512

2=16

=19570

2 =8192

2=256

2=8

2 =4096122 =2048112=1024

2=12872=64

2=4

2=2

2=32

2=1

5-35

05 - 17

VFD-B Series

Time Duration of 1st Step Speed

Factory Setting: 0.0

05 - 18

05 - 19

05 - 10

05 - 21

05 - 22

05 - 23

05 - 24

05 - 25

05 - 26

05 - 27

05 - 28

05 - 29

05 - 30

05 - 31

Time Duration of 2nd Step Speed

Time Duration of 3rd Step Speed

Time Duration of 4th Step Speed

Time Duration of 5th Step Speed

Time Duration of 6th Step Speed

Time Duration of 7th Step Speed

Time Duration of 8th Step Speed

Time Duration of 9th Step Speed

Time Duration of 10th Step Speed

Time Duration of 11th Step Speed

Time Duration of 12th Step Speed

Time Duration of 13th Step Speed

Time Duration of 14th Step Speed

Time Duration of 15th Step Speed

Factory Setting: 0.0

Settings 0.0 to 65500 Unit: 1 /0.1sec

Pr.05-17 to Pr.05-31 correspond to operation time of each step speed defined by



Pr.05-00 to Pr.05-14. The maximum setting 65500 seconds will be displayed as t6550. If

it is displayed t6550. that means 6550 seconds.

Note: If a parameter is set to “00” (0 sec), the corresponding step will be skipped. This is

commonly used to reduce the number of program steps

05 - 32

Time Unit Settings Factory Setting: 00

Settings 00 1 Sec

01 0.1 Sec

This parameter determines the time unit for Pr.05-17~Pr.05-31.



05 - 33

Settings

Skip Frequency Width Factory Setting: 0.00

0.00〜400.00 Hz

05 - 34

Bias Frequency Width Factory Setting: 0.00

Settings

0.00〜400.00 Hz

 Frequency of ∆ top point Fup= master frequency F + Pr.05-33 + Pr.05-34.

 Frequency of ∆ down point F

= master frequency F – Pr.05-33 – Pr.05-34.

down

5-36

Master Frequency (F)

VFD-B Series

Fup

Double Pr. 05-34

Pr.05-33

Pr.01-09 Pr.01-11

Pr.01-10 Pr.01-12

Fdown

5-37

VFD-B Series

Group 6: Protection Parameters

06 - 00

Over-Voltage Stall Prevention Factory Setting: 390V

Settings 00 Disable Over-Voltage Stall Prevention

230V series: 330 ~ 410V

460V series: 660 ~ 820V

During deceleration, the DC bus voltage may exceed its Maximum Allowable Value due



to motor regeneration. When this function is enabled, the AC drive will not decelerate

and keep the output frequency until the voltage drops below the preset value.

Note:

With moderate inertial load, the over-voltage stall prevention will not occur and the real

deceleration time should be equal to the setting of deceleration time. The AC drive will

automatically extend the deceleration time with high inertial loads. If deceleration time is

critical for the application, then dynamic braking resistor should be used.

Output Frequency

Deceleration characteristic when Over-Voltage Stall Prevention enabled

Frequency Held

Time

Deceleration Time 01-10, 01-12, 01-19, 01-21

06 - 01

Over-Current Stall Prevention during Acceleration

Factory Setting: 170

Settings 20 to 250% Unit: 1%

 A setting of 100% is equal to the Rated Output Current of the drive.

 During acceleration, the AC drive output current may increase abruptly and exceed the

value specified by Pr.06-01 due to rapid acceleration or excessive load on the motor.

When this function is enabled, the AC drive will stop accelerating and keep the output

frequency until the current drops below the maximum value.

5-38

VFD-B Series

Over-Current Detection Level

Current

06-01

Output Frequency

Over-Current Stall prevention during Acceleration, frequency held

06 - 02

Over-current Stall Prevention during Operation

Factory Setting: 170

Settings 20 to 250% Unit: 1%

If the output current exceeds the setting specified in Pr.06-02 (the over-current stall



prevention current level during operation) when the drive is operating, the drive will

decrease its output frequency to prevent the motor stall. If the output current is lower

than the setting specified in Pr.06-02, the drive will then accelerate to catch up with the

frequency specified.

Over-Current Detection Level

Output Current

06-02

Over-Current Stall Prevention during Operation, output frequency decrease

Output Frequency

5-39

VFD-B Series

06 - 03

Over-Torque Detection Mode (OL2) Factory Setting: 00

Settings 00 Over-Torque detection disabled.

01 Over-Torque detection enabled during constant speed operation,

and keep operation after the over-torque is detected.

02 Over-Torque detection enabled during constant speed operation,

and operation halted after over-torque detection.

03 Over-Torque detection enabled during acceleration, and keep

operation after the over-torque is detected.

04 Over-Torque detection enabled during acceleration, and

operation halted after over-torque detection

This parameter determines the operation mode of the drive after the over-torque is



detected with the following method: if the output current exceeds the over-torque

detection level (Pr.06-04) and which also exceeds the setting of Pr.06-05 Over-Torque

Detection Time, with the [Multi-Functional Output Terminal] specified as an indication for

the over-torque detection, the contact will then be “closed”. Please refer to

Pr.03-00~03-03 for detail.

06 - 04

Over-Torque Detection Level Factory Setting: 150

Settings 10 to 200% Unit: 1%

This setting is proportional to the Rated Output Current of the drive.



06 - 05

Over-Torque Detection Time Factory Setting: 0.1

Settings 0.1 to 60.0Sec Unit: 0.1sec

This parameter determines the time for over-torque detection.



06 - 06

Electronic Thermal Overload Relay Selection Factory Setting: 00

Settings 00 Operate with a Standard Motor (coaxial heat dissipation)

01 Operate with a Special Motor (independent heat dissipation)

02 Operation disabled

This function is used to protect the motor from overload or overheat.



06 - 07

Electronic Thermal Characteristic

Factory Setting: 60

Settings 30 to d 600 Sec Unit: 1 Sec

The parameter determines the time required activating the I2t electronic thermal



protection function. The graph below shows I2t curves for 150% output power for 1

minute.

5-40

Operation time(min)

VFD-B Series

60Hz or more

50Hz

100

120

140

06 – 08

06 - 09

06 - 10

06 - 11

Present Fault Record Factory Setting: 00

Second Most Recent Fault Record

Third Most Recent Fault Record Factory Setting: 00

Fourth Recent Fault Record Factory Setting: 00

Settings 00 No fault occurred

01 Over-current (oc)

02 Over-voltage (ov)

03 Overheat (oH)

10Hz

5Hz

160

Load factor (%)

180 200

Factory Setting: 00

04 Overload (oL)

05 Overload1 (oL1)

06 External fault (EF)

07 IGBT protection (occ)

08 CPU failure (CF3)

09 Hardware protection failure (HPF)

10 Current exceeds 2 times rated current during accel.(ocA)

11 Current exceeds 2 times rated current during decel.(ocd)

12 Current exceeds 2 times rated current during steady state

operation (ocn)

13 Ground fault (GFF)

14 Low voltage (Lv)

15 CPU READ failure (CF1)

16 CPU WRITE failure (CF2)

5-41

VFD-B Series

17 External Base block stop (bb)

18 Motor over load (oL2)

19 Auto accel/decel failure (CFA)

20 Software/password protection (code)

21 Emergency stop (EF1)

22 PHL (Phase-Loss)

23 cEF (Preliminary count value attained, EF active)

24 Lc (Low-current)

25 AnLEr (Analog feedback signal error)

26 PGErr (PG feedback signal error)

Pr.06-08 to Pr.06-11 store records of the four most recent faults that had occurred. Use



the reset key to reset the drive when the fault no longer exits.

06 - 12

Low-Current Detection Level Factory Setting: 00

Settings 00 Disabled

00 ~ 100%

06 - 13

Low-Current Detection Time Factory Setting: 10.0

Settings 0.1~ 3600.0 Sec Unit: 0.1sec

06 - 14

Low-Current Treatment Factory Setting: 00

Settings 00 Warn and keep operating

01 Warn and ramp to stop

02 Warn and coast to stop

03 Warn, after coast to stop, restart (delay 06-15 setting time)

06 - 15

Low-Current Detection Restart Delay Time Factory Setting: 10.0

Settings 1~600.0 Min. Unit: 1min

If output current is lower than Pr.06-12 and exceed the time that Pr.06-13 sets during



running, AC drive will warn as Pr.06-14 sets. If Pr.06-14 is set to 03, AC drive will restart

after the delay time set by Pr.06-15 is up.

5-42

VFD-B Series

06 - 16

User-Defined Low-Voltage Detection Level Factory Setting: 00

Settings 00 Disabled

230V series: 220 ~ 300VDC

460V series: 440 ~ 600VDC

06 - 17

User-Defined Low-Voltage Detection Time Factory Setting: 0.5

Settings 0.1~ 3600.0 Sec Unit: 0.1sec

When the voltage of DC BUS is lower than Pr.06-16 and the time exceeds the setting of



Pr.06-17, AC drive will output a signal by the setting 28 of Pr.03-00 ~ Pr.03-03.

06 - 18

Reserved

5-43

VFD-B Series

Group 7: Motor Parameters

07 - 00

Motor Rated Current

Factory Setting: 100

Settings 30 to 120% Unit: 1%

Use the following method to calculate the percentage entered in this parameter.



(Motor Rated Current (Ampere)/ AC Drive Rated output current (Pr00-01)) x 100%

Pr.07-00 and Pr.07-01 must be set if the drive is programmed to operate in Vector



Control mode (Pr.0-09 = 2, 3). It also must be set if the "Electronic Thermal Overload

Relay" (Pr.06-06) or "Slip Compensation" functions is selected.

07 - 01

Motor No-load Current

Factory Setting: 40

Settings 01 to 90% Unit: 1%

The rated current of the AC drive is regarded as 100%. The setting of the Motor no-load



current will effect the slip compensation.

The setting value must be less than the Pr.07-00 (Motor Rated Current).



07 - 02

Torque Compensation

Factory Setting: 0.0

Settings 0.0 to 10.0 Unit: 0.1

This parameter may be set so that the AC drive will increase its voltage output to obtain



a higher torque. Only for V/F control mode.

07 - 03

Slip Compensation (Used without PG)

Factory Setting: 0.00

Settings 0.00 to 3.00 Unit: 0.1

While driving an asynchronous motor, increasing load on the AC drive will cause an



increase in slip. This parameter may be used to compensate the slip by increasing the

output frequency. When the output current of the AC drive is greater than the motor

no-load current (Pr.07-01), the AC drive will adjust its output frequency according to this

parameter.

07 - 04

Number of Motor Poles

Factory Setting: 04

Settings 02 to 10 Unit: 2

This parameter sets the number of motor poles (must be an even number).



07 - 05

Motor Parameters Auto Tuning

Factory Setting: 00

Settings 00 Disable Unit: 1

01 Auto Tuning R1

02 Auto Tuning R1 + No-load Test

5-44

VFD-B Series

 It will auto detect by pressing RUN key after this parameter is set to 01 or 02. When

setting to 01, it just auto detect R1 value, and the Pr.07-01 needed to input by manual.

When setting to 02, AC drive should be no-load and the value of Pr.07-01 and Pr.07-06

will be filled automatically.

 The steps to AUTO-Tuning are:

1. Make sure that all the parameters are set to factory settings and the wiring

connected to motor is correctly.

2. Make sure that motor is no-load before auto-tuning and the axis doesn’t connect to

any belt or gear motor.

3. Fill in Pr.01-02, Pr.01-01, Pr.07-00, Pr.07-04 and Pr.07-08 with correct value.

4. After Pr.07-05 is set to 1 or 2, the AC drive will execute auto-tuning immediately as

soon as it receives the ”RUN” command The execution time will be 15 seconds +

Pr.01-09 + Pr.01-10. (The more horsepower needs the more Accel/decel time)

5. After executing, please check if there are values filled in Pr.07-01 and Pr.07-06. If

not, please press RUN key after setting Pr.07-05.

6. Then, you can set Pr.00-09 to 02/03 and set other parameters according to your

requirement.

Note 1: It is not suitable for many motors run with parallel in vector control mode.

Note 2: It is not suitable for using in vector control mode if | horsepower of motor | -

| horsepower of AC drive | doesn’t exceed the useful range.

07 - 06

Motor Line-to-line Resistance R1

Settings

00 to 65535 mΩ

Factory Setting: 00

Unit: 01

 The motor auto detection will set this parameter. The user may also set this parameter

without using Pr.07-05.

07 - 07

Reserved

07 - 08

Motor Rated Slip

Factory Setting: 3.00

Settings 0.00 to 20.00Hz Unit: 0.01

 Refer to the rated rpm on the nameplate of the motor and use the following equation to

determine the rated slip.

Rated Slip = F (Pr.01-01 base frequency) – (rated rpm x motor pole/120)

5-45

VFD-B Series

07 - 09

Slip Compensation Limit

Factory Setting: 200

Settings 00 to 250% Unit: 1

 This parameter can set the upper limit of the compensation frequency (the percentage

of Pr.07-08).

07 - 10

07 - 11

Reserved

07 - 12

Torque Compensation Time Constant

Factory Setting: 0.05

Settings 0.01 ~10.00 Sec Unit: 0.01

07 - 13

Slip Compensation Time Constant

Factory Setting: 0.10

Settings 0.05 ~10.00 Sec Unit: 0.01

 Setting the Pr.07-12 and Pr.07-13 can change the response time for the compensation.

07 - 14

Accumulative Motor Operation Time (Min.)

Factory Setting: 00

Settings 00 ~1439 Unit: 01

07 - 15

Accumulative Motor Operation Day

Factory Setting: 00

Settings 00 ~65535 Unit: 01

 Pr.07-14 and Pr.07-15 are used to record the motor operation time. They can be cleared

by setting to 00 and won’t record if the time is less than 60 seconds.

5-46

Group 8: Special Parameters

VFD-B Series

08 - 00

DC Braking Current Level

Factory Setting: 0

Settings 0 to 100% Unit: 1%

 This parameter determines the level of DC Braking Current output to the motor during

start-up and stopping. When setting DC Braking Current, the Rated Current (Pr.00-01)

is regarded as 100%. It is recommended to start with a low DC Braking Current Level

and then increase until proper holding torque has been attained.

08 - 01

DC Braking Time during Start-up Factory Setting: 0.0

Settings 0.0 to 60.0 sec Unit: 0.1sec

 This parameter determines the duration that the DC Braking current will be applied to

the motor during the AC drive start-up. When the time is up, the AC drive will start

acceleration from the Minimum Frequency (Pr.01-05).

08 - 02

DC Braking Time during Stopping

Factory Setting: d 0.0

Settings 0.0 to 60.0 sec Unit: 0.1sec

 This parameter determines the duration that the DC Braking current will be applied to

the motor during stopping. If stopping with DC Braking is desired, the Pr.02-02 must be

set to RAMP stop.

08 - 03

Start-Point for DC Braking Factory Setting: 0.00

Settings 0.00 to 400.00Hz Unit: 0.01Hz

 This parameter determines the frequency that the DC Braking will begin while the output

Frequency reached during deceleration.

Output Frequency

Run/Stop

Start-Point for DC Braking Time during

01-05

Minimum Output Frequency

Stopping

08-03

DC Braking Time during Stopping

OFF

NOTE: 1. DC Braking during Start-up is used for loads that may move before the AC drive

starts, such as fans and pumps. Under such circumstances, DC Braking can be

executed to hold the load in position before applying a forward motion.

5-47

VFD-B Series

2. DC Braking during stopping is used to shorten stopping time and also to hold a

stopped load in position. For high inertial loads, a dynamic braking resistor may

also be needed for quick decelerations.

Factory Setting: 00

08 - 04

Momentary Power Loss Operation Selection

Settings 00 Operation stops after momentary power loss.

01 Operation continues after momentary power loss, speed search

starts with the Master Frequency reference value.

02 Operation continues after momentary power loss, speed search

starts with the minimum frequency.

This parameter determines the operation mode when the AC drive restart from a



momentary power loss.

08 - 05

Maximum Allowable Power Loss Time

Factory Setting: 2.0

Settings 0.1 to 5.0 sec Unit: 0.1sec

If the power loss time is less than this parameter setting, the AC drive will resume



operation, or if exceed the Maximum Allowable Power Loss Time, the AC drive output is

then turned off.

08 - 06

Baseblock Time for Speed Search (BB)

Factory Setting: 0.5

Settings 0.1 to 5.0 sec Unit: 0.1sec

When momentary power loss is detected, the AC drive will stop its output, and then wait



for a specified period of time (determined by Pr.08-06, called Base-Block) before

resuming the operation. Setting of this parameter should be the residual voltage with a

close-to-0V value on the output end before the drive is activated again.

This parameter could also determine the searching time when performing External



Baseblock and Auto Restart after Fault (Pr.08-14).

08 - 07

Current Limit for Speed Search

Factory Setting: 150

Settings 30 to 200% Unit: 1%

This parameter limit the current output when the Drive operates in speed search mode.



When executing speed search, V/F curve will base on the setting of Group 01.



5-48

Power Input

Output Frequency

Output Voltage

08 - 08

Maximum Allowable

08-05

08-04=01

Power Loss Time

Speed Search

Baseblock Time

08-06

Skip Frequency 1 Upper Bound

Speed Synchronization Detection

08-05

08-04=02

Baseblock Time

VFD-B Series

Maximum Allowable Power

08-06

Factory Setting: 0.00

08 - 09

08 - 10

08 - 11

08 - 12

08 - 13

Skip Frequency 1 Lower Bound Factory Setting: 0.00

Skip Frequency 2 Upper Bound Factory Setting: 0.00

Skip Frequency 2 Lower Bound Factory Setting: 0.00

Skip Frequency 3 Upper Bound Factory Setting: 0.00

Skip Frequency 3 Lower Bound Factory Setting: 0.00

Settings 0.00 to 400.00Hz Unit: 0.01Hz

These parameters select the Skip Frequency. It will cause the AC drive to skip operation



at these frequency ranges with continuous frequency output.

Pr.08-09, Pr.08-11, Pr.08-13 are for Lower Bound setting, and the settings should follow



as Pr.08-09

08 - 14

≧

Pr.08-11

Auto Restart After Fault

≧

Pr.08-13.

Factory Setting: 00

Settings 00 to 10 Unit: 1

After fault occurs (allowable faults: over-current OC, over-voltage OV), the AC drive can



be reset/restarted automatically up to 10 times. Setting this parameter to 0 will disable

the reset/restart operation after any fault has occurred. When enabled, the AC drive will

restart with speed search, which starts at the Frequency before fault.

08 - 15

Automatic energy-saving

Factory Setting: 00

Settings 00 Energy-saving operation disabled

01 Energy-saving operation enabled

5-49

VFD-B Series

Output Voltage

100%

70%

During the auto energy-saving operation, it will adjust the output voltage according to the output power. The maximum output voltage can be 30% lower than the normal output voltage.

Output Frequency

08 - 16

Automatic Voltage Regulation (AVR)

Factory Setting: 00

Settings 00 AVR function enabled

01 AVR function disabled

02 AVR function disabled for deceleration

The rated voltage of motor is usually AC220V/200V, 60Hz/50Hz and the input voltage of



AC drive is AC 180V ~ 264V, 50Hz/60Hz. When AC drive runs without AVR function, if

input power is AC 250V and the output voltage to motor will also be AC 250V. The

voltage exceeds 12% ~ 20% of the rated voltage. When motor runs in the higher voltage,

the temperature of motor will be risen, the insulation will be destroyed and the output of

torque will be unsteadily. The motor will be short life if using in these situation for a long

time.

This function will make the output power stay on the rated voltage of motor when input



power exceeds the rated voltage of motor. For example, V/F curve is set to AC

200V/50Hz, input power is AC 200 ~ 264V, the voltage that output to motor will be AC

200V/50Hz and not exceed the setting voltage. If the input power vary between AC 180

~ 200V, the voltage that output to motor will be the same ratio with input power.

Selecting program value 2 enables the AVR function and will disables the AVR function



during deceleration. This offers a quicker deceleration.

Software Setting of the Braking Level

08 - 17

Unit: 1

(the Action Level of the Braking Resistor)

Settings 230V series: 370 to 430V Factory Setting: 380

460V series: 740 to 860V Factory Setting: 760

5-50

This parameter is the software setting utilized in controlling the braking Resistor; please



refer to the DC voltage value on the DC-BUS for reference.

VFD-B Series

08 - 18

Base block Speed Search Factory Setting: 00

Settings 00 Speed search starts with last frequency command

01 Starts with minimum output frequency (Pr.01-05)

This parameter determines the AC drive restart method after base block is enabled.



Stop output voltage

Disable B.B. signal

Waiting time 08-06

Speed search

Synchronization speed detection

Time

Output frequency

(H)

Output voltage

(V)

08-07 Current Limit for

Baseblock time for

Speed Sear ch

08-06

speed search

output current

FWD Run

B.B.

Fig 1: B.B. Speed Search with Last Outpu t Frequency Downward Timing Chart

(Speed Search Current Attains SpeedSearch Level)

Output frequency

(H)

Output voltage

(V)

08-07 Current Limit for

Speed search level

Speed Search

Output current

FWD Run

Fig 2: B.B. Speed Search with Last Output Frequency Downward Timing Chart

08-06

B.B.

(Speed Search Current doesn't Attain Speed Search Level)

Time

Input B.B. signal

Stop output voltage

Disable B.B. signal

Waiting time

Speed search

Synchronization speed detection

5-51

VFD-B Series

(

)

Output frequency

(H)

Output voltage

(V)

06-01

Over current

stall prevention

during acceleration

FWD Run

B.B.

Stop output voltage

Disable B.B. signal

Waiting time 08-06

Restart

Time

Stall prevention

Keep accelerating

Fig 3: B.B. Speed Search with Minimum Output Frequency Upward Timing Chart

Start-up Current Attains Stall Current Level

08 - 19

Speed Search during Start-up

Factory Setting: 00

Settings 00 Speed search disable

01 Speed search enable

This parameter is used for starting and stopping a motor with high inertia. A motor with



high inertia will take a long time to stop completely. By setting this parameter, the user

does not need to wait for the motor to come to a complete stop before restarting the AC

drive. If a PG card and encoder is being used on the drive and motor, then the speed

search will start from the speed that is detected and accelerate quickly to the

commanded frequency. Pr.08-04 and Pr.08-06 will be disabled when using this

parameter with PG feedback control.

Note: Please make sure Pr.07-04, Pr.10-10, and Pr.10-11 are set correctly. An incorrect

setting may cause the motor to exceed its speed limit and permanent damage to the

motor and machine can occur.

08 - 20

Speed Search Frequency during Start-up

Factory Setting: 00

Settings 00 Setting Frequency

01 Maximum Operation Frequency (01-00)

This parameter determines the start frequency of speed search frequency.



5-52

VFD-B Series

08 - 21

Auto Reset Time at Restart after Fault

Factory Setting: 600

Settings 00 to 60000 sec Unit: 1

This parameter should be used with Pr.08-14. For example: Pr.08-14 is set to 10 and



Pr.08-21 is set to 600s (10 min), if there is no fault over 600 seconds from the restart for

the previous fault, the auto reset times for restart after fault will be reset to 10.

08 - 22

Compensation Coefficient for Motor Instability

Factory Setting: 00

Settings 00~1000 Unit: 1

This parameter can improve the motor instability situation.



5-53

VFD-B Series

Group 9: Communication Parameters

09 - 00

Communication Address

Factory Setting: 01

Settings 01 to 254

If the AC drive is controlled by RS-485 serial communication, the communication



address for this drive must be set via this parameter.

09 - 01

Transmission Speed

Factory Setting: 01

Settings 00 Baud rate 4800 (data transmission speed: bits / second)

01 Baud rate 9600 (data transmission speed: bits / second)

02 Baud rate 19200 (data transmission speed: bits / second)

03 Baud rate 38400 (data transmission speed: bits / second)

Users can set parameters and control the operation of the AC drive via the RS-485



serial interface of a personal computer. This parameter is used to set the transmission

speed between the computer and AC drive.

09 - 02

Transmission Fault Treatment

Factory Setting: 03

Settings 00 Warn and keep operating

01 Warn and RAMP to stop

02 Warn and COAST to stop

03 No warning and keep operating

This parameter is set to detect if an error occurs and take actions.



09 - 03

Time Out Detection

Factory Setting: 0.0

Settings 0.0 Disable

0.0 ~ 60.0 sec Unit: 1

If Pr09-03 is not equal to zero, Pr09-02=0~2, and there are not any communication on



the bus during setting time period (set by Pr. 09-03), “cE10” will be shown on the

keypad.

09 - 04

Communication Protocol

Factory Setting: 00

Settings 00 Modbus ASCII mode, protocol <7,N,2>

01 Modbus ASCII mode, protocol <7,E,1>

02 Modbus ASCII mode, protocol <7,O,1>

03 Modbus RTU mode, protocol <8,N,2>

04 Modbus RTU mode, protocol <8,E,1>

05 Modbus RTU mode, protocol <8,O,1>

5-54

 1. Computer Control

There is a built-in RS-485 serial interface, marked (RJ-11 Jack) on the control

terminal block. The pins are defined below:

Each VFD-B AC drive has a pre-assigned communication address specified by

Pr.09-00. The computer then controls each AC drive according to its communication

address.

VFD-B Series

1: EV 2: GND 3: SG4: SG+ 5: NC

6: for communication

A VFD-B can be setup to communicate on Modbus networks using one of the

following modes: ASCII (American Standard Code for Information Interchange) or

RTU (Remote Terminal Unit). Users can select the desired mode along with the

serial port communication protocol in Pr.9-04.

Code Description:

ASCII mode:

Each 8-bit data is the combination of two ASCII characters. For example, a 1-byte

data: 64 Hex, shown as ‘64’ in ASCII, consists of ‘6’ (36Hex) and ‘4’ (34Hex).

Character ‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’

ASCII code 30H 31H 32H 33H 34H 35H 36H 37H

Character ‘8’ ‘9’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘F’

ASCII code 38H 39H 41H 42H 43H 44H 45H 46H

RTU mode:

Each 8-bit data is the combination of two 4-bit hexadecimal characters. For example,

64 Hex.

 2. Data Format

10-bit character frame (For ASCII):

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VFD-B Series

( 7.N. 2)

Start bit

( 7.E. 1)

Start bit

( 7.O.1)

Start bit

01234

0123456

11-bit character frame (For RTU):

( 8. N.2 )

Start bit

( 8.E .1 )

Start bit

( 8. O.1 )

Start bit

0123456

01234

 3. Communication Protocol

7-bit character

10-bit character frame

7-bit character

10-bit character frame

8-bit character

11-bit character frame

8-bit character

11-bit character frame

8-bit character

11-bit character frame

3456

7-bit character

Stop

bit

Even

parity

Odd

parity

Stop bit

Even

arity

Odd

parity

Stop bit

3.1 Communication Data Frame:

ASCII mode:

STX Start character ‘:’ (3AH) ADR 1 ADR 0

CMD 1 CMD 0

DATA (n-1)

DATA 0

LRC CHK 1 LRC CHK 0

END 1 END 0

Communication address: 8-bit address consists of 2 ASCII codes

Command code: 8-bit command consists of 2 ASCII codes

Contents of data: n×8-bit data consist of 2n ASCII codes.

n<=25, maximum of 50 ASCII codes

LRC check sum: 8-bit check sum consists of 2 ASCII codes End characters: END1= CR (0DH), END0= LF(0AH)

RTU mode:

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VFD-B Series

START

A silent interval of more than 10 ms

ADR Communication address: 8-bit address

CMD Command code: 8-bit command

DATA (n-1)

DATA 0

CRC CHK Low

Contents of data: n×8-bit data, n<=16

CRC check sum: 16-bit check sum consists of 2 8-bit characters

CRC CHK High

END

A silent interval of more than 10 ms

3.2 ADR (Communication Address)

Valid communication addresses are in the range of 0 to 254. A communication

address equal to 0, means broadcast to all AC drives (AMD). In this case, the AMD

will not reply any message to the master device.

For example, communication to AMD with address 16 decimal:

ASCII mode: (ADR 1, ADR 0)=’1’,’0’ => ‘1’=31H, ‘0’=30H

RTU mode: (ADR)=10H

3.3 CMD (Command code) and DATA (data characters)

The format of data characters depends on the command code. The available

command codes and examples for VFD-B are described as followed:

(1) 03H: multi read, read data from registers.

Example: reading continuous 2 data from register address 2102H, AMD address is 01H.

ASCII mode:

Command message: Response message:

STX ‘:’ STX ‘:’

ADR 0

CMD 1 CMD 0

Starting data

address

Number of data

(count by word)

‘0’ ‘0’ ADR 1 ‘1’ ‘0’ ‘0’

‘3’ ‘2’ ‘0’

‘1’ ‘0’ ‘1’ ‘2’ ‘7’ ‘0’ ‘7’ ‘0’ ‘0’ ‘0’ ‘2’ ‘0’

ADR 1 ADR 0

CMD 1 CMD 0

Number of data (Count by byte)

Content of

2102H

Content of

LRC CHK 1 ‘D’

‘1’

‘3’

‘4’

‘0’

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VFD-B Series

RTU mode:

Command message:

LRC CHK 0 ‘7’ ‘0’

CR ‘7’ END 1

END 0

LRC CHK 1 LRC CHK 0

END 1 END 0

‘1’

Response message: ADR 01H

CMD 03H

21H Starting data

address

(count by word)

CRC CHK Low 6FH 00H

02H 00H 17H Number of data 02H

Content of register

CRC CHK High F7H

ADR 01H

CMD 03H

Number of data

(count by byte)

2102H

2103H

04H

70H

00H CRC CHK Low FEH CRC CHK High 5CH

(2) 06H: single write, write single data to register.

Example: writing data 6000(1770H) to register 0100H. AMD address is 01H.

ASCII mode:

Command message: Response message:

STX ‘:’ STX ‘:’ ADR 1 ‘0’ ADR 1 ‘0’ ADR 0 ‘1’ ADR 0 ‘1’

CMD 1 ‘0’ CMD 1 ‘0’ CMD 0 ‘6’ CMD 0 ‘6’

‘0’ ‘0’

‘1’ ‘1’ ‘0’ ‘0’

‘0’ ‘1’ ‘1’

Data content

‘7’ ‘7’ ‘7’ ‘7’

Data content

‘0’

LRC CHK 1 ‘7’ LRC CHK 1 ‘7’ LRC CHK 0 ‘1’ LRC CHK 0 ‘1’

END 1 CR END 1 CR END 0 LF END 0 LF

‘0’

RTU mode:

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Command message: Response message:

ADR 01H ADR 01H

CMD 06H CMD 06H

VFD-B Series

Data content

00H 00H 00H 12H 17H

ABH

Data content

00H

70H

CRC CHK Low ADH CRC CHK Low ADH

CRC CHK High 14H CRC CHK High 14H

(3) 08H: loop detection, this command is used to test if the communication between

master equipment (PC or PLC) and AC drive is normal or not. AC drive will

send the data received from master equipment back to master equipment.

Example: AMD address is 01H.

ASCII mode:

Command message: Response message:

STX ‘:’ STX ‘:’

ADR 0

CMD 0

‘0’ ‘0’ ADR 1 ‘1’ ‘0’ ‘0’ CMD 1 ‘8’

ADR 1 ADR 0

CMD 1 CMD 0

‘1’

‘8’

‘0’ ‘0’

Data address

‘0’ ‘0’ ‘0’ ‘0’ ‘0’

Data address

‘0’

‘1’ ‘1’

Data content

‘7’ ‘7’ ‘7’ ‘7’ ‘0’

‘7’ ‘7’ LRC Check ‘0’

Data content

LRC Check

‘0’

CR END CR END

LF LF

RTU mode:

Command message: Response message:

ADR 01H ADR 01H

CMD 08H CMD 1 08H

Data address

Data content

00H 00H 00H

17H’ 17H

70H

Data address

Data content

00H

70H

CRC CHK Low 8EH CRC CHK Low 8EH

CRC CHK High 0EH CRC CHK High 0EH

(4) 10H: multi write, write multi data to registers.

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VFD-B Series

Example: Set the multi-step speed, Pr.05-00=50.00 (1388H),

Pr.05-01=40.00 (0FA0H). AC drive address is 01H.

ASCII Mode:

Command message: Response message:

STX ‘:’ STX ‘:’ ADR 1 ‘0’ ADR 1 ‘0’ ADR 0 ‘1’ ADR 0 ‘1’

CMD 1 ‘1’ CMD 1 ‘1’ CMD 0 ‘0’ CMD 0 ‘0’

‘0’ ‘0’

Starting register

address

‘5’ ‘5’ ‘0’ ‘0’

Starting register

address ‘0’ ‘0’ ‘0’

Number of data (count by word)

‘0’ ‘0’ ‘0’ ‘0’

Number of data (count by word)

‘2’

Number of data

(count by byte)

The first data

content

‘0’ ‘E’ ‘4’ ‘1’ CR ‘3’ ‘8’

LRC Check

END

‘8’ ‘0’

The second data

content

‘F’ ‘A’ ‘0’ ‘9’ LRC Check ‘A’

CR END

‘0’

‘2’

‘8’

RTU mode:

Command message: Response message:

ADR 01H ADR 01H

CMD 10H CMD 1 10H

address

(count by word) Number of data

05H 05H Starting register 00H

00H’ 00H Number of data

02H

04 CRC Check Low 41H

Starting register

address

Number of data (count by word)

(count by byte)

The first data

content

13H CRC Check High 04H 88H

The second data 0FH

5-60

00H

02H

VFD-B Series

content A0H

CRC Check Low ‘9’

CRC Check High ‘A’

3.4 CHK (check sum)

ASCII mode:

LRC (Longitudinal Redundancy Check) is calculated by summing up, module 256, the

values of the bytes from ADR1 to last data character then calculating the hexadecimal

representation of the 2’s-complement negation of the sum.

For example, reading 1 word from address 0401H of the AC drive with address 01H

STX ‘:’

‘0’ ADR 1

ADR 0

‘1’ ‘0’ CMD 1

CMD 0

‘3’ ‘0’

Starting register

address

‘4’ ‘0’ ‘1’ ‘0’

Number of data

‘0’ ‘0’ ‘1’

‘F’ LRC CHK 1

LRC CHK 0

‘6’

CR END 1

END 0

01H+03H+04H+01H+00H+01H=0AH,

the 2’s-complement negation of 0AH is F6

RTU mode:

ADR 01H

CMD 03H

21H Starting register

address

02H 00H Number of data

(count by word)

02H

CRC CHK Low 6FH

CRC CHK High F7H

CRC (Cyclical Redundancy Check) is calculated by the following steps:

Step 1: Load a 16-bit register (called CRC register) with FFFFH. Step 2: Exclusive OR the first 8-bit byte of the command message with the low order

byte of the 16-bit CRC register, putting the result in the CRC register.

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VFD-B Series

Step 3: Examine the LSB of CRC register.

Step 4: If the LSB of CRC register is 0, shift the CRC register one bit to the right with

MSB zerofilling, then repeat step 3. If the LSB of CRC register is 1, shift the

CRC register one bit to the right with MSB zerofilling, Exclusive OR the CRC

Step 5: Repeat step 3 and 4 until eight shifts have been performed. When this is done,

a complete 8-bit byte will have been processed.

Step 6: Repeat step 2 to 5 for the next 8-bit byte of the command message. Continue

doing this until all bytes have been processed. The final contents of the CRC

message, the upper and lower bytes of the CRC value must be swapped,

i.e. the lower order byte will be transmitted first.

The following is an example of CRC generation using C language. The function takes two

arguments: Unsigned char* data  a pointer to the message buffer Unsigned char length  the quantity of bytes in the message buffer

The function returns the CRC value as a type of unsigned integer.

Unsigned int crc_chk(unsigned char* data, unsigned char length){

int j;

unsigned int reg_crc=0xFFFF;

while(length--){

reg_crc ^= *data++;

for(j=0;j<8;j++){

if(reg_crc & 0x01){ /* LSB(b0)=1 */

reg_crc=(reg_crc>>1) ^ 0xA001;

}else{

reg_crc=reg_crc >>1;

}

return reg_crc;

}

3.5 Address list:

The contents of available addresses are shown as below:

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Content Address Function

GG means parameter group, nn means parameter number,

AC drive

Parameters

GGnnH

for example, the address of Pr 4-01 is 0401H. Referencing to chapter 5 for the function of each parameter. When reading parameter by command code 03H, only one parameter can be read at one time.

00B: No function

Bit 0-1

01B: Stop 10B: Run 11B: Jog + Run

Bit 2-3 Reserved

00B: No function 01B: FWD 10B: REV 11B: Change direction 00B: Comm. forced 1st accel/decel 01B: Comm. forced 2nd accel/decel 10B: Comm. forced 3rd accel/decel

Command

Write only

Bit 4-5

2000H

Bit 6-7

11B: Comm. forced 4th accel/decel

Bit 8-11

Represented 16 step speeds.

VFD-B Series

Command

Write only

Status monitor

Read only

Status monitor

Read only

Bit 12

1: Comm. multi step speed or accel/decel time

Bit 13-15 Reserved

2001H Freq. command

Bit 0 1: EF (external fault) on

0: No comm. multi step speed or accel/decel time

2002H

Bit 1 1: Reset

Bit 2-15 Reserved Error code: 00: No error occurred 01: Over-current (oc) 02: Over-voltage (ov) 03: Overheat (oH) 04: Overload (oL)

2100H

05: Overload1 (oL1) 06: External fault (EF) 07: IGBT short circuit protection (occ) 08: CPU failure (cF3) 09: Hardware protection failure (HPF) 10: Current exceeds 2 times rated current during accel (ocA) 11: Current exceeds 2 times rated current during decel (ocd)

2100H

12: Current exceeds 2 times rated current during steady state

operation (ocn)

13: Ground Fault (GFF)

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VFD-B Series

Content Address Function

14: Low voltage (Lv) 15: CPU failure 1 (cF1) 16: CPU failure 2 (cF2) 17: Base Block 18: Overload (oL2) 19: Auto accel/decel failure (cFA) 20: Software protection enabled (codE) 21: EF1 Emergency stop

22:PHL (Phase-Loss)

23:cEF (Preliminary count value attained, EF active)

24:Lc (Low-current)

25:AnLEr (Analog feedback signal error)

26:PGErr (PG feedback signal error)

Status of AC drive

LED: 0: light off, 1: light up

00: RUN LED

2101H

Bit 0-4

01: STOP LED 02: JOG LED 03: FWD LED 04: REV LED

Bit 5 0: F light off, 1: F light on Bit 6 0: H light off, 1: H light on Bit 7 0: “u” light off, 1: “u” light on

Bit 8

1: Main freq. Controlled by communication

interface

Bit 9 1: Main freq. controlled by analog signal

Bit 10

1: Operation command controlled by

communication interface Bit 11 1: Parameters have been locked Bit 12 0: AC drive stops, 1: AC drive operates Bit 13 1: Jog command

Bit 14-15 Reserved

2102H Frequency command (F) 2103H Output frequency (H) 2104H Output current (AXXX.X) 2105H DC-BUS Voltage U (XXX.X) 2106H Output voltage E (XXX.X) 2107H Step number of Multi-Step Speed Operation 2108H Step number of PLC operation

2109H Content of external TRIGGER 210AH Power factor angle 210BH Estimated torque ratio 210CH Motor speed (Hz)

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Content Address Function

210DH PG pulse (low byte) /unit time (Pr.10-15) 210EH PG pulse (high byte) /unit time (Pr.10-15)

210FH Output power (KW)

2110H Reserved

2200H Feedback Signal (XXX.XX %)

2201H User-defined (Low word)

2202H User-defined (High word)

2203H AVI analog input (XXX.XX %)

2204H ACI analog input (XXX.XX %)

2205H AUI analog input (XXX.XX %)

3.6 Exception response:

The AC drive is expected to return a normal response after receiving command

VFD-B Series

messages from the master device. The following depicts the conditions that no

normal response is replied to the master device.

The AC drive does not receive the messages due to a communication error; thus, the

AC drive has no response. The master device will eventually process a timeout

condition.

The AC drive receives the messages without a communication error, but cannot

handle it, an exception response will return to the master device and an error

message “CExx” will display on the keypad of AC drive. The xx of “CExx” is a

decimal code equal to the exception code that will describe below.

In the exception response, the most significant bit of the original command code is set

to 1, and an exception code explains the condition that caused the exception is

returned. An example of exception response of command code 06H and exception

code 02H:

ASCII mode:

RTU mode:

STX ‘:’ ADR 01H

‘0’ CMD 86H ADR 1

ADR 0

‘1’ Exception code 02H ‘8’ CRC CHK Low C3H CMD 1

CMD 0

Error code

‘6’ CRC CHK High A1H ‘0’ ‘2’ ‘7’ LRC CHK 1

LRC CHK 0

‘7’

CR END 1

END 0

The explanation of error codes:

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DELTA VFD-B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

TABLE OF CONTENTS

CHAPTER 1 RECEIVING AND INSPECTION

CHAPTER 2 STORAGE AND INSTALLATION

2.1 Storage

2.2 Installation

CHAPTER 3 WIRING

3.1 Basic Wiring Diagram

3.2 External Wiring

3.3 Terminal Explanations

3.4 Control Terminals Explanations

3.5 Main Circuit Wiring

3.7 Motor Operation Precautions

CHAPTER 4 DIGITAL KEYPAD OPERATION

4.1 Description of the Digital Keypad VFD-PU01

4.2 Operation steps of the Digital Keypad VFD-PU01

CHAPTER 5 DESCRIPTION OF PARAMETER SETTINGS

Group 0: User Parameters a: This parameter can be set during operation.

Group 1: Basic Parameters

Group 2: Operation Method Parameters

Group 3: Output Function Parameters

Group 4: Input Function Parameters

Group 5: Multi-step Speed and PLC (Process Logic Control) Parameters

Group 6: Protection Parameters

Group 7: Motor Parameters

Group 8: Special Parameters

Group 9: Communication Parameters