hnc HNC-21, HNC-22 Connection Manual

HNC-21/22

HNC-21/22 CNC

CNC

CNC Device

Device

Connection

Connection Manual

Manual

Wuhan

Wuhan Huazhong

Huazhong

Huazhong Numerical

2.0

V 2.0

2.0

10/11

20 10/11

10/11

Numerical

Numerical Control

Control

Control Co.

Co.

Co. Ltd

Ltd

HNC-21/22 Connection Manual

Preface

This connection manual is for HNC-21/22 unit. It is recommended that the operator

read this manual before operating the machine.

The organization of this manual:

(1) Precaution

(2) Connection

(3) Parameters

(4) Commissioning

(5) Typical Design

(6) Appendix

HNC-21/22 Connection Manual

Introduction

HNC-

1. HNC-

HNC-21/22 (HNC- 21 /TD, HNC- 21 /M D, HNC-22/TD, HNC-22/MD ) possesses the

advanced open-structure, built-in industrial control computer, and high-performance

32-bit CPU. T here are 8.4’(HNC-21)/10.4’(HNC-22) LCD and standard panel for

machine tool engineering. It integrates feed axis interface, spindle interface,

handwheel unit interface, and built-in PLC ( Programmable Logic Circuits ) interface

as a whole. It supports the program storage form, and also supports the program

exchange through USB , DNC (Direct Numerical Control ) , Ethernet. According to its

high performance, compact structure, being easy to use, reliability, and reasonable

price, the Device is mainly suitable for numerical control of turning machines, milling

machines, and machining centers .

- Maximum coordinate axes: 6;

21/22

HNC-

21/22

HNC- 21/22

21/22

- Compatible with various pulsed AC servo drives, step motor drives;

- Standard panel for machine tool engineering is used . N o PLC input/output

interfaces are taken up. The color of machine control panel and the name of key

on the panel can be customized for different users.

- T here are 40 bit (extended to 60 bit) input interfaces , 32 bit optical isolated

output interfaces (extended to 48 bit), handwheel unit interface, analog spindle

control interface and spindle encoder interface.

- With 8.4’(HNC-21)/10.4’(HNC-22) LCD (the resolution is 640 × 480 ) , it is easy to

display the alarm message and simulation of tool - path.

- The program is written in ISO G code, compatible with any common CAD/CAM.

It can implement the linear interpolation, the circular interpolation, the helical

interpolation, the canned cycle, the rotation, the scale, the mirror image, the tool

compensation, the macro-program , etc.

- Machining a specified segment incrementally is especially suitable for machining

the compl icate moulds .

- The breakpoint can be saved and resumed , which provides the convenience and

safety for customers.

HNC-21/22 Connection Manual

- T he backlash and the uni-/ bi - directional pitch error compensation can improve

the machining precision effectively.

- It can save G code program up to 2GB.

- The data can be exchanged through RS232 or Ethernet .

- Flash RAM: 2GB is used to save the program (no cell is required).

- RAM: 32MB is used as a buffer for machining program .

Note: the default configuration of Flash RAM and RAM would not be notified

once again, if the size is increased.

- The dimension of device is 420 × 310 ×

DNC

unit

2. DNC

DNC

DNC unit

(optional)

unit

(optional)

unit (optional)

(optional)

0 mm ( W × H × D).

DNC unit is a unit for interface switcher, which are DNC (RS-232) interface, PC

keyboard (PS2) interface, Ethernet interface .

Since there are DNC (RS-232) interface, PC keyboard (PS2) interface, and USB

interface on HNC-21, DNC unit is mainly used on HNC-22.

Handwheel

3. Handwheel

Handwheel unit

unit

(optional)

unit

(optional)

unit (optional)

(optional)

- S tandard four -wire m anual pulse generator

- Four-axis switch

- Three kinds of magnification switch

- Emergency stop button

- Handwheel enabl e button

- Pilot lamps

I/O

4. I/O

I/O Terminal

Terminal

Terminal Board

Board

The I/O terminal board is connect ed to the optically isolated PLC inputs and outputs

through cables to facilitate wiring, commissioning and maintenance for the control

cabinet.

- 20-bit PLC inputs or 16-bit PLC outputs

- P ilot lamp on e ach input or output interface

- Both NPN and PNP interfaces are provided .

iii

HNC-21/22 Connection Manual

Relay

5. Relay

Relay Terminal

Terminal

Terminal Board

Board

Board (optional)

(optional)

I t is connect ed to the optically isolated PLC outputs through cables to facilitate wiring,

commissioning and maintenance for the control cabinet.

- 8 -bit PLC direct terminal out puts + 8-bit relay normally open contact point

outputs

- Two independent double-pole relays. Both normally open + normally closed

contact points are supported.

- P ilot lamp on e ach input or output interface .

II 图形符号系统第 1 页共 1 页

Safety

6. Safety

Safety Placard

Placard

: m ust do.

; especially important

: line or boundary

: signal direction

: point connected

: cable bunched/diverged

: shielding layer

: passive NO and NC

: plug and socket

: encoder

【】

: s h all not be done.

: default, initia l setting

: a set of cable

: exchange

: terminal

: cable bunched/diverged

: grounding

: coil

: transducer

: motor

: pilot lamp

: gearbox

: mechanical linkage

HNC-21/22 Connection Manual

Table

Table of

Preface .................................................................................................................................................................... i

Introduction ............................................................................................................................................................ ii

1 Precaution .................................................................................................................................................... 1

1.1 Safety ...................................................................................................................... 2

1.2 Unpacking and Checking ........................................................................................ 6

1.3 Dimensions ............................................................................................................. 7

1.4 Installation .............................................................................................................. 8

1.5 Environmental Requirement ................................................................................. 10

2 Connection .................................................................................................................................................

2.1 Total Connection Diagram .................................................................................... 12

2.2 Interface ................................................................................................................ 13

2.3 Power Supply Connection .................................................................................... 17

2.4 Connection to DNC unit ....................................................................................... 20

2.5 Connection to Computer ....................................................................................... 21

2.6 PLC I/O Interface ................................................................................................. 24

2.7 Connection to Handwheel Unit ............................................................................. 36

Contents

of Contents

Contents

..................................................................................................................................................

1.1.1 Transportation and Storage ........................................................................ 2

1.1.2 Installation ..................................................................................................... 2

1.1.3 Wiring ............................................................................................................. 3

1.1.4 Commissioning ............................................................................................. 3

1.1.5 Operation ....................................................................................................... 4

1.1.6 Maintenance ................................................................................................. 4

1.1.7 Waste Treatment .......................................................................................... 5

1.1.8 General Instructions ..................................................................................... 5

1.2.1 List .................................................................................................................. 6

1.2.2 Product Type ................................................................................................. 6

1.5.1 Weather Condition ..................................................................................... 10

1.5.2 Elevation ...................................................................................................... 10

1.5.3 Transportation and Storage ...................................................................... 10

1.5.4 Mechanical Environment ........................................................................... 10

1.5.5 Environmental Pollution ............................................................................ 10

2.2.1 NC Device ................................................................................................... 13

2.2.2 DNC unit (optional) .................................................................................... 14

2.2.3 Handwheel unit (optional) ......................................................................... 14

2.2.4 I/O Terminal Boards (optional) ................................................................. 15

2.3.1 General Requirement ................................................................................ 17

2.3.2 Grounding .................................................................................................... 18

2.5.1 RS232 Interface ......................................................................................... 21

2.5.2 Ethernet Interface ....................................................................................... 21

2.6.1 Input interface ............................................................................................. 24

2.6.2 Output interface .......................................................................................... 27

2.6.3 Direct Connection to NC device ............................................................... 32

2.6.4 Connection to NC device through I/O terminal board ........................... 33

2.6.5 Description of PLC Address ..................................................................... 34

2.7.1 Handwheel Interface .................................................................................. 36

2.7.2 Connection to Standard Handwheel Unit ............................................... 37

HNC-21/22 Connection Manual

2.7.3 Connection to Customized Handwheel Unit .......................................... 38

2.8 Connection to Spindle device ............................................................................... 39

2.8.1 Relevant Interfaces .................................................................................... 39

2.8.2 Spindle Start and Spindle Stop ................................................................ 40

2.8.3 Spindle Speed Control .............................................................................. 41

2.8.4 Spindle Orientation Control ...................................................................... 42

2.8.5 Spindle Gear Control ................................................................................. 43

2.8.6 Connection to Spindle Encoder ............................................................... 43

2.8.7 Connection Example ― AC Induction Motor ........................................... 44

2.8.8 Connection Example ― Spindle motor with driver .................................. 45

2.8.9 Parameters related to Spindle device ..................................................... 46

2.9 Connection to Feed Drive ..................................................................................... 47

2.9.1 Interface Description .................................................................................. 47

2.9.2 Connection to Stepper Motor Drive Unit ................................................. 48

2.9.3 Connection to Servo with pulse command ............................................. 50

2.10 Design of E-Stop and Overtravel Released .......................................................... 53

2.11 Design of Electromagnetic Compatibility ............................................................ 56

2.11.1 EMC of NC Device ..................................................................................... 56

2.11.2 Grounding .................................................................................................... 57

2.11.3 Check Interference from Power Network ............................................... 66

2.11.4 Anti-Interference ......................................................................................... 71

2.11.5 Prevention of Producing Interference ..................................................... 73

2.11.6 Summary of Design Guide ........................................................................ 79

3 Parameters

................................................................................................................................................

3.1 Overview .............................................................................................................. 84

3.2 Setting Parameters ................................................................................................ 85

3.3 Description of Parameters ..................................................................................... 86

3.3.1 Machine Parameters ................................................................................. 86

3.3.2 Axis Parameters ......................................................................................... 88

3.3.3 Servo Parameters ...................................................................................... 94

3.3.4 Axis Compensation Parameters .............................................................. 95

3.3.5 PMC User Parameters .............................................................................. 98

3.3.6 DNC Parameters ........................................................................................ 98

3.3.7 Quadrant Transition Parameters .............................................................. 99

4 Commissioning

........................................................................................................................................

4.1 Checking before Operation ................................................................................. 102

4.1.1 Inspection of Wiring ................................................................................. 102

4.1.2 Inspection of Power ................................................................................. 102

4.1.3 Inspection of Device ................................................................................ 103

4.2 Trial Operation .................................................................................................... 104

4.2.1 Power On .................................................................................................. 104

4.2.2 Setting Parameters .................................................................................. 104

4.2.3 Inspection of External Status .................................................................. 106

4.2.4 Servo Power On ....................................................................................... 108

4.3 PLC Commissioning ........................................................................................... 112

4.3.1 Main Elements of PLC Commissioning ................................................ 112

4.3.2 Process of PLC Commissioning ............................................................ 112

4.3.3 Methods for PLC Commissioning .......................................................... 113

4.4 Machine Commissioning .................................................................................... 114

4.4.1 Commissioning of Servo Parameters .................................................... 114

4.4.2 Machine Error Compensation ................................................................. 116

101

HNC-21/22 Connection Manual

4.5 Commissioning of Spindle D/A Parameters ....................................................... 120

5 Typical Design ......................................................................................................................................... 121

5.1 Overview ............................................................................................................ 122

5.2 Typical Design – NC Milling System ................................................................. 123

5.2.1 Brief Introduction ...................................................................................... 123

5.2.2 Overall Diagram ....................................................................................... 124

5.2.3 I/O Specification ....................................................................................... 124

5.2.4 Circuit Diagram ......................................................................................... 127

5.3 Typical Design – NC Turning System ................................................................ 135

5.3.1 Brief Introduction ...................................................................................... 135

5.3.2 Overall Diagram ....................................................................................... 135

5.3.3 I/O Specification ....................................................................................... 136

5.3.4 Circuit Diagram ......................................................................................... 138

6 Appendix .................................................................................................................................................. 144

6.1 Product Type ....................................................................................................... 145

6.2 Dimension ........................................................................................................... 146

6.2.1 NC Device ................................................................................................. 146

6.2.2 DNC Unit ................................................................................................... 147

6.2.3 Handwheel Unit ........................................................................................ 147

6.3 Interface Description .......................................................................................... 149

6.3.1 NC Device ................................................................................................. 149

6.3.2 DNC Unit (optional) .................................................................................. 154

6.3.3 Handwheel Unit (optional) ...................................................................... 154

6.4 Standard PLC I/O in milling system ................................................................... 156

6.5 Standard PLC I/O in turning system ................................................................... 158

vii

viii

HNC-21/22 Connection Manual

Precaution

1 Precaution

Precaution

protect the user and prevent damage to the machine, please read the following

precautions before attempting to use the machine.

1. Precaution

1.1

Safety

1.1

Safety

1.1

1.1 Safety

Safety

1.1.1

1.1.1 Transportation

1.1.2

1.1.2 Installation

Transportation

Transportation and

The product should be transported properly according to its weight.

The number of products stacked must not be more than what stipulated.

Do not climb up or stand on the product. Do not stack heavy things on it.

Dragging its cable to move or lift the product is not allowed.

Protect the front panel and screen from impact and cut.

Keep damp-proof while storing and transporting.

Let us know in time if the product has been stored overtime.

Installation

Because its casing is not of waterproof design, the product sh all be installed in a cabinet to prevent from being rained on or directly sun-scorching.

and

Storage

and

Storage

and Storage

Storage

There sh all be enough space as required between the product and the cabinet case or other devices.

The product sh all work in the environment with good ventilation, without inflammable air, and without the erosion by corrosive material such as abrasive, oil-mist, metal powder etc. Any conductor as metal or machine oil is prohibited to get into the product.

Do not put the product near any inflammable or explosive matter.

The installation sh all be firm and without v ibration. Do not throw or strike the product while installing. Neither a ny colliding against n or loading on the product is allowed.

1. Precaution

1.1.3

1.1.3 Wiring

Wiring

Workers undertaking wiring or inspection must be qualified to do the jobs.

The NC device must be grounded reliably . T he earth-resistance must be less than 4 ohm. Do not take the neutral as a ground . O therwise , the system may not work normally and stably because of interference.

Wiring s hall be correct and firm to avoid wrong operation.

Do not transfer either the position signal from NC device to servo driver unit or the position feedback signal from position frequency converter to servo driver unit and NC device through terminals or sockets . O therwise , the NC device may not work owing to interference.

Any voltage at terminals must have its correct value and polarities (+, -) as mentioned in the manual . O therwise , the short circuit or permanent damage to the machine may occur.

The surge-absorbed diode of DC relay controlled by PLC output signal from NC device must be wired as shown in F igure 1-1 to prevent the damag e t o device.

perso n n el’s hands must be kept dry while touching the plugs or switches to

avoid getting an electric shock or resulting in device damage.

Any tear on electric wires is not allowed. The wires sh all not be squeezed to avoid leakage or even short-circuit.

It is absolutely not allowed to insert or pull out any plug or open the NC cabinet door with the power supply on.

1.1.4

1.1.4 Commissioning

1.1.5

1.1.5 Operation

Commissioning

Before putting the device in motion, check the parameter setting at first. Incorrect settings would lead to unexpected results.

Set parameter in its permissible range. Oversetting may lead to unstable operation or even the damag e to the device.

Check if the cables of servomotor and the encoder wires are corresponding to each other.

Operation

PLC output

Relay coil

DC+24V

Figure 1 1 the surge-absorbed diode

1. Precaution

Personnel to operate the device must be competent for their work.

Before plugging in to get the main source, make sure that the main switch is off to avoid accidental start -up .

While doing electrical design, it sh all take into account that the emergency stop button of NC device could cut the power supplies for servo motion, spindle motion and motions of all other moving parts when the system accidents occur. For example, cut off the power supply (section 2. 9 for details ).

While designing or modifying the PLC programs, make sure that the operation signal has been off before the reset alarm signal . For example, the spindle rotation signal must be off before resetting the spindle alarm signal .

Do not refit the device.

prevent from or reduce the influence of electromagnetic interference on NC

device, refer to section 2.10 E lectromagnetic Compatibility Design.

reduce the electromagnetic interference, a low-pass filter can be added i f

there are electronic devices .

Do not turn on and off the system frequently . T he interval between on and off operations must be at least 3 minutes.

T he operator’s hands must be kept dry, clean and no greasy dirt during operation . It is suggested to keep the clear protection film on the panel.

Do not press the keys hard . It is not allowed to strike at the keyboard with wrench or other sharp-edged and hard articles.

Operators shall not leave the machine while operating the devices.

1.1.6

1.1.6 Maintenance

Maintenance

Power supply sh all be turned off before checking, replacing or installing parts or elements.

When short-circuit or overload happens, do not turn on the power again un less checking and fixing the breakdown.

When alarm has happened, do not restart the device un less the accident is cleared off.

Do not install or operate the device if it is damaged or lack of p arts and elements.

The aging of electrolytic capacitors may lead to low performance. damages arising from there, the electrolytic capacitors should be replaced, under the normal operation conditions, every ten years. Please c ontact with us at any time to solve the relevant problems.

avoid the

1. Precaution

1.1.7

1.1.7 Waste

1.1.8

1.1.8 General

Waste

Waste Treatment

Treat the wastes as ordinary industrial wastes.

General

General Instructions

While putting the device in operation, install the cover plate and safety equipment perfectly and operate the device as mentioned in manuals.

Read over chapter 2.10 Electrical Design in detail and notice all the emphasized points.

Treatment

Instructions

1. Precaution

1.2

Unpacking

1.2

Unpacking

1.2

1.2 Unpacking

Unpacking and

and

and Checking

Checking

1.2.1

1.2.1 List

After unpacking, please make sure that :

- The product is what you ordered.

- No damage occurs during transportation.

- The received components included the accessories are complete and without

Please Contact us in time if any problem exists .

1.2.2

1.2.2 Product

The following is the description of HNC- 21 .

List

damage.

Product

Product Type

21: NC of standard type 22: NC of advanced type

Type

HNC

HNC –

–

– 21

21 M

Unit Type M: Milling

Turning

–

M D

D –

–

– 32

32 –

Storage Size

–

– H

H 02

Memory Size Flash RAM – MB Hard disk -- GB

ype of feed axis

D: pulse interface for pulse servo or step per motor driver

Figure 1 2 Description of HNC-21

Memory type: F: Flash RAM H: IDE hard disk

1.3

Esc

Tab

GECYBZ

QRFH

S T

％

\:;

[8]^

6 7

2 3 4

Enter

Upper

=+/

Del

Alt

Pgdn

快进

-X

+4TH -Y

-4TH+Y-Z

循环启动

进给保持

J K

W L

P N

Pgup

100％

- +

快速修调主轴

制动

刀具松/紧主轴修调

100％

进给修调主轴

反转

主轴定向

回零

1000

冷却开停

主轴正转机床锁住主轴

停止

主轴冲动

换刀允许

主轴停止

主轴冲动

换刀允许

主轴正转

主轴定向

冷却开停

F5F4 F6

主轴反转

主轴制动

进给修调

快速修调

- +

100％

-Z

-X

刀具松/紧主轴修调

F8F7 F9

100％

+4TH

F10

-4TH+Y

快进

+Z-Y

PgDn

EnterAlt

[8]^

6 75

PgUp

*9/

Upper

Shift

Del

:1"

2 3

;

J K

S T

％

Tab

CXA B

Y Z G

Esc

a ） HNC - 21

b ） HNC - 2 2

Dimensions

1.3

Dimensions

1.3

1.3 Dimensions

Dimensions

1. Precaution

Figure 1 3 Dimension of HNC-21/22

1. Precaution

Esc

Tab

GECYBZ

RFH

S T

％

\:;

[8]^

6 7

2 3 4

Enter

Upper

=+/

Del

Alt

Pgdn

快进

-X

+4TH -Y

-4TH+Y-Z

循环启动

进给保持

J K

W L

P N

Pgup

100％

- +

100％

100

1 5

1.4

Installation

1.4

Installation

1.4

1.4 Installation

Installation

Figure 1 4 Dimension of Installation (HNC-21 as an example)

Please note the following items when designing the cabinet (control cabinet, console,

and pendant box) .

1. As shown in Fig ure 1-4 , it needs to have at least a 100mm-space between NC

device and the rare wall of the cabinet to facilitate plugging the cables and heat

radiation .

2. The cabinet structure must be of IP54 protection class. S ome requirements

should be met :

1) The material used to make the cabinet must bear any mechanical, chemical,

or heat stress and the moisture influence normally happened .

2) It needs to stick the adhesive tape along the door crack to eliminate the

gap .

3) The cable entrances must be sealed properly, so that it can be unsealed

easily if necessary .

4) Fans or heat exchanger must be equipped to radiate the heat from cabinet .

5) If fans are used, the air filters are required at both inlets and outlets .

6) Be careful not to let the dust come into the cabinet through heat dissipation

holes. Dust or other materials such as cutting lubricant, mist can get into the

device and attach itself to circuit board to make the insulation aging and

even lead to circuit damage. Therefore, it needs to know the environment

and the direction of air discharge; the warm air stream should be directed

1. Precaution

Air flow

NC cabinet

Machine tool

against the pollution source, as shown in Fig ure 1-5.

Figure 1 5 Air flow direction in NC cabinet

3. Temperature in the cabinet shall not be higher than 50 ℃ . Alternatively, more

effective steps shall be applied to dissipate the heat.

4. The control panel must be placed where the coolant or other liquid does not

reach .

reduce electromagnetic interference, k eep cables or electric components

having supply voltage higher than 50V apart from NC device at least 100mm .

6. The NC device should be installed where the commissioning and maintenance

can be done conveniently .

1. Precaution

1.5

Environmental

1.5

Environmental

1.5

1.5 Environmental

Environmental Requirement

Requirement

1.5.1

1.5.1 Weather

The NC device works normally in the environment shown as follows.

- A mbient temperature : 0 ~ 40 ℃

- R elative humidity : 30% ~ 95% ( without dew )

- A tmospheric pressure : 86 ~ 106k Pa

1.5.2

1.5.2 Elevation

The NC device works normally with an elevation of less than 1000 m.

1.5.3

1.5.3 Transportation

It is proper to transport and store the NC device within a temperature range of

(-40 ℃ ~ +55 ℃ ). The device can survive up to 70 ℃ in a short-term, less than 24

hours, transportation or storage. It is necessary to adopt moisture-proof, shockproof

and impact-resistant measures to avoid damage .

Weather

Weather Condition

Elevation

Transportation

Transportation and

Condition

and

Storage

and

Storage

and Storage

Storage

1.5.4

1.5.4 Mechanical

The NC device sh all be installed far from any shock resource to prevent from the

influence of shock, impulse and impact. If the device has to be installed near these

resources, additional measures are necessary to ensure the NC device against

resonance, and the vibration amplitude must be less than 0.05mm (frequency range:

5-55 Hz) .

1.5.5

1.5.5 Environmental

While transporting, storing or operating, keep the NC device out of the strong

microwave radiation and the strong electromagnetic interference. Do not let

excessive pollutants (dust, acid, corrosive gas, salty matter) intrude into NC device.

The device should not work in an environment accompanied with strong vibratio n.

Mechanical

Mechanical Environment

Environmental

Environmental Pollution

Environment

Pollution

HNC- 21/22 Connection Manual

Connection

2 Connection

Connection

Thi s chapter would introduce:

Total

connection diagram

- I nterface

- Power supply connection

- Connection to DNC

- Connection to computer

- I/O on NC device

- Connection to handwheel unit

- Connection to spindle device

- Connection to feed drive

- Design of E-Stop and Overtravel Released

- Design of Electromagnetic Compatibility

2. Connection

Power s

upply

Keyboard

XS1

30 -

XS3

XS2

XS3

XS5

10 - XS12

XS20 - XS22

On-off input

Feed device

On-off output

USB

Ethernet

RS232

Handheld unit

Spindle unit

2.1

Total

2.1

Total

2.1

2.1 Total

Total Connection

This section shows the total connection diagram of HNC-21/22.

Connection

Connection Diagram

Diagram

[Note]

(1) As it is shown Fig ure 2 - 1, HNC- 21/22 controls various types of feed units

(2) PLC I/O (maximum: 60/48) can be connected through XS10-XS12 (input),

(3) The interface to connect to the third axis on HNC-21 or the fourth axis on

(4) The interfaces XS12 and XS22 which provide 20/16 I/O are optional.

(5) Ethernet interface XS3 is optional.

Figure 2 1

through XS 30 -XS3 5. Up to six different types of feed device can be connected.

XS20-XS22 (output).

HNC-22 is optional.

Total

Connection Diagram of HNC-21/22

2.2

Interface

2.2

Interface

2.2

2.2 Interface

Interface

2. Connection

2.2.1

2.2.1 NC

Th is section shows the interface of HNC-21.

Device

NC Device

Device

Figure 2 2 Interface of HNC-21

Figure 2 3 Interface of HNC-22

2. Connection

RS232 switcher

PC keyboard switcher

Ethernet switcher

RS232 Interface

PC keyboard interface

Ethernet Interface

Ethernet switcher

RS232 switch er

PC keyboard switcher

XS1: Power supply interface XS2: Keyboard interface

XS3: Ethernet interface XS5: RS232 interface

XS7: USB interface XS8: Handwheel unit interface

XS9: Spindle control interface X10~X12: PLC inputs interface

X20~X22: PLC outputs interface X30~X35: feed axis control interface

2.2.2

2.2.2 DNC

There are RS232, PC keyboard and E thernet interfaces on DNC unit . The following

Fig ure 2-4 shows the interface of DNC unit .

As it is shown in Figure 2-4, the interfaces are used to connect with PC or other

devices, and the switchers are used to connect with HNC-21/22. The interfaces on

DNC unit correspond with the interfaces shown in Figure 2-2 or Figure 2-3.

DNC

DNC unit

unit

unit (optional)

(optional)

Figure 2 4 Interface of DNC unit

2.2.3

2.2.3 Handwheel

As it is shown in Figure 2-5, t he handwheel unit is equipped with the emergency stop

button, pilot lamps, axis switch (OFF, X,

and the manual pulse generator. It is connected to XS8 of HNC-21/22.

Handwheel

Handwheel unit

unit

unit (optional)

(optional)

Z), m agnification switch (X1, X10, X100) ,

DB25 PIN

Figure 2 5 Interface of Handwheel unit

2. Connection

2.2.4

2.2.4 I/O

There are two kinds of I/O terminal boards – input terminal boards and output

terminal boards. They are usually used as a switcher unit to connect XS 10, XS11,

XS12, XS20, XS21, and XS22 of HNC-21 /22 .

Each input terminal board or output terminal board contains both NPN and PNP

terminals.

E ach input terminal board contains 20 bit input terminals . Each output terminal

board contains 16 bit output terminals, 2 bit emergency-stop terminal, and 2 bit

overtravel terminal.

- I nput terminal board

I/O

Terminal

I/O

Terminal

I/O Terminal

Terminal Boards

Boards

Boards (optional)

(optional)

2. Connection

- O utput terminal board

Figure 2 6 Input terminal board

Figure 2 7 Output terminal board

2.3

24V ≥50W

+24V

24V GND

External supply

Casing ground

HNC-21

24V ≥100W

XS1

AC 24V

External supply

Power

2.3

Power

2.3

2.3 Power

Power Supply

Supply

Supply Connection

Connection

2. Connection

2.3.1

2.3.1 General

If the external supply 1 is of AC 24V, an independent power supply for NC device is

suggested to use (refer to Fig ure 2 -8 ) .

General

General Requirement

NC device (External supply 1) : AC24V , or DC24V/100W;

PLC power (External supply 2): DC24V, no less than 50W;

Cables: Shielded cables or twisted cables ;

Requirement

Figure 2 8 Power Supply 1

It is suggested to use a switch supply of DC 24V for the external supply 2. It is

proper to increase the supply capacity in case there are many DC 24V relays

controlled by PLC outputs, or to have an additional power supply, having a common

ground with the external supply 2. If the brake of Z axis (spindle) and

electromagnetic valves also require DC 24V supply , try to use another supply (not

the external supply 2) to prevent NC device from interference induced by loads with

large inductance .

I f the external supply 1 is of DC 24V , it is allowed to have a shared switching supply,

having capacity of no less than 1 45 W for both the external supply 1 and the external

supply 2 (refer to Fig ure 2 -9 ) .

2. Connection

Casing ground

HNC - 21 /22

DC24V

≥ 1 5 0W

XS1

1, 2

4, 5

+24V

24V G ND

External supply

As shown in Fig ure 2 -10 , the external supplies 1 and 2 provide power for PLC

elements and manual pulse generator of handwheel unit through the interface XS8

on NC device .

Figure 2 9 Power Supply 2

2.3.2

2.3.2 Grounding

- Protective Grounding

Grounding

T he ground wire of power supply (pin 6 of XS1) is connected with PE

interface of NC device. An additional copper ground wire at le ast 2.5 mm

shall be taken as the ground wire and connected with PE interface of NC

unit , since the ground wire of the power cable is thin.

- Signal Grounding

The pin 4 of XS1 (DC 24VG) is connected to pin 1, 2, 14, and 15 of XS10,

XS11, XS12, XS20, XS21, and XS2 2 . Moreover, t o reduce the current

passing the pin 4 (DC 24V G ) of XS1 and to raise the anti-interference ability

of PLC signals , those pins (1, 2, 14, 15) sh all be connected to the ground of

external supply DC 24V (Figure 2-10).

2. Connection

HNC -21/22

Int ern al

circuit

Handhe ld un it

+24V

24V

+24V

24V G ND 24V G

24V

24V G ND

24V G

XS10

, 11

,12

XS20 ,21

,22

XS8

Ext

ern al

supply 2

DC24V ≥

50W

XS1

+5V

5V G

,16

1,14 2,15

P ower s upply 2

DC 24V ≥ 1 50W

Figure 2 10 Signal grounding

In case some electrical components (such as relays, pilots in buttons,

approach switches, and Hall switches) to control or receive signals from

I/O have their independent power supply, the supply should have common

ground with the supply of these inputs and outputs, Otherwise , NC device

can not control those electrical components or receive signal from th o se

component s reliably .

2. Connection

XS5

XS3

XS2

HNC - 21/22

DNC

unit

XS5’

XS3’

XS2’

NC device

Keyboard switcher

Ethernet

switcher

RS232

switcher

1 DATA

3 GND

4 VCC

5 CLOCK

1 TX _ D1+

2 TX_D1 -

3 RX_D2+

4 BI_D3+

5 BI_D3 -

6 RX_D2 -

7 BI_D4+

8 BI_D4 -

2 RXD

3 TXD

5 G ND

HNC - 21 /22

DNC unit

XS2

XS3

XS5

DATA 1

GND 3

VCC 4

CLOCK 5

TX _ D1+ 1

TX_D1 - 2

RX_D2+ 3

BI_D3+ 4

BI_D3 - 5

RX_D2 - 6

BI_D4+ 7

BI_D4 - 8

RXD 2

TXD 3

GND 5

XS5 ’

able length

2.4

Connection

2.4

Connection

2.4

2.4 Connection

Connection to

DNC

to DNC

DNC unit

unit

DNC unit is a unit for interface switcher, which are DNC (RS-232) interface, PC

keyboard (PS2) interface, Ethernet interface .

Since there are DNC (RS-232) interface, PC keyboard (PS2) interface, and USB

interface on HNC-21, DNC unit is mainly used on HNC-22.

The following figure is the connection between DNC unit and NC device.

Figure 2

Connection between DNC and NC unit

The distance between DNC unit and NC device should not be longer than one meter.

The following figure shows the detailed connection between DNC and NC unit.

Figure 2 12 Detailed connection between DNC and NC unit

+ 141 hidden pages

hnc HNC-21, HNC-22 Connection Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Introduction

Table of Contents

Precaution

Safety

Installation

Wiring

Commissioning

Operation

Maintenance

Waste Treatment

General Instructions

List

Product Type

Dimensions

Installation

Environmental Requirement

Weather Condition

Elevation

Mechanical Environment

Environmental Pollution

Connection

Interface

NC Device

General Requirement

Grounding