AL-Ⅱ Series USB MasterAL2-02/USB
Instructions Manual(For designers' use)

Please ensure to read and understand thisInstructions Manual before using the Product.
Please keep this Instructions Manual at handso that it is always available for reference.

MN0199

AL2-02/USB

Instructions Manual

Introduction
This instructions manual explains the handling of "AL- Ⅱ Series USB Master AL2-02/USB",emphasizing the specifications to enable proper and safe use.
The manual is thus intended for designers of control systems using servo motors and stepping motors.
Before using the product, read this manual carefully for better understanding.
Keep the manual handy so that you can read it whenever you want.

Description of safety
This product must be handled correctly.
Handling the product incorrectly may cause unexpected accidents resulting in personal injuries ordamage to your properties.
Many of those accidents can be avoided if you have advance information on dangerous situations.
This manual provides precautions where dangerous situations are predicted. The manual provides thefollowing alert marking and messages for this purpose:
 WARNING

This indicates a hazardous situation that could result in death or serious
personal injury if you do not perform the procedure correctly.

 CAUTION

This indicates a potentially hazardous situation that could result in personal
injury or physical damage if you do not perform the procedure correctly.

Before use■ This product is not designed for use in the equipment related to nuclear power, aerospace equipment,
vehicles, marine vessels, medical equipment directly in touch with human body, equipment
anticipated to give a serious impact to properties, and other equipment required to provide highreliability.
■ Take failsafe measures so that the whole system operates safely even if the input power causes anerror, a signal line is disconnected, or the main unit fails.
■ Be sure to use this product within the scope of the specifications described in this instruction manualin accordance with the specification method described therein.
■ Set up the product before operating it.
Please refer to the Section 3, "Setting."■ Please refer to separate manual "AL-Ⅱ series device driver manual for Windows" also when you
handle this product.

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AL2-02/USB

Instructions Manual
Introduction
Description of safety
Before use
Contents

PAGE

１． Overview
1-1. Features
1-2. Product configuration
1-3. Example of system configuration
1-4. Function block diagram
1-5. Externals of product

4
5
5
6
7

２． Specifications
2-1. General specifications
2-2. Communication specifications
2-3. Master specifications
2-4. Input and output signal table(1) Serial communication connector( J1)(2) USB communication connector( for ONLINE: J2, and for OFFLINE: J4 )(3) Power supply connector( J3)
2-5. Outside dimensions

8
8
9
10
10
10
10
11

３． Setting
3-1. Setting of USB number ( S1)
3-2. Setting of AL-Ⅱ communication(1) Address setting of the AL-Ⅱ communication(2) Baud rate setting of the AL-Ⅱ communication(3) Retry setting of the AL-Ⅱ communication
3-3. Setting of Extend-unit communication

12
12
12
12
12
12

４． Connection
4-1. Connection of AL-Ⅱ communication system(1) Core connection of AL-Ⅱ communications cable(2) Connection of terminator(3) Wiring distance of AL-Ⅱ communication(4) Power supply for communication

13
13
13
13
13

５． OFFLINE
5-1. Support environment of OFFLINE
5-2. OFFLINE specification

1414

６． Maintenance
6-1. Maintenance and inspection(1) Cleaning method(2) Inspection method(3) Replacement method
6-2. Saving and disposal(1) Saving method(2) Disposal method

16
16
16
16
16
16
16

The main parts which revised by this manual-3-AL2-02/USB

Instructions Manual
１． Overview
1-1. Features● The AL-Ⅱ series is a high speed serial communication system of original controlling the flexible stepping motor,
servo motor which can cope easily as well and I/O in the decentralization of the device and supporting axial addition.
・ The AL-Ⅱ series is an insulation type high-speed serial communications of 20 Mbps/50 m or 10 Mbps/100 m.
The wiring for the personal computer system can be omitted with USB of a personal computer general-purpose port.
・ The shift of board controller C-VX870 series ( Device-function) for PCI made of our company and the USB series( Device-function and Unit-function) is easy depending on the device driver function for Windows.
● The status of four axis batch reading and the command of four axis batch execution by the Unit-function is possible.
This Unit-function can perform a unit and AL-Ⅱ interface by one function execution from an application.
By this,・ The time crunch can be done compared with accessed Device-function of each axis and I/O-function ofeach I/O port.
・ The Unit-function ( writing) suppresses the difference at time until it instructs time each axis and each I/O output
signal.
・ The Unit-function can reduce the load of the application.
・ It supports the Device-function, and can use the Device-function.
・ The Unit-function can be used together with the Device-function and the I/O-function.
Access example in Device-function and I/O-function

Access example in Unit-function

Time lag
Reading

X-axis STATUS1

X-axis STATUS1

Reading

Y-axis STATUS1

Y-axis STATUS1

Reading

Z-axis STATUS1

Z-axis STATUS1

Reading

A-axis STATUS1

A-axis STATUS1
Batch Reading

X-axis Control I/O

Reading

Y-axis Control I/O

Y-axis Control I/O

Reading

Z-axis Control I/O

Z-axis Control I/O

Reading

A-axis Control I/O

A-axis Control I/O

Reading

General-purpose I/O

General-purpose I/O

Reading

Extend I/O 0nExtend I/O 0

Reading

Extend I/O 1oExtend I/O 1

i

X-axis Control I/Oac

X-axis DATA2i

X-axis COMMAND

Batch Writing

Y-axis DATA1ltBatch Writing

X-axis DATA1a

X-axis DATA1itTime lagY-axis DATA1li(A Unit)

ReadingonTime lag(Each axis )X-axis DATA2(Each axis )Y-axis DATA2ppY-axis COMMANDp

Batch Writing

Z-axis DATA1A(Each axis )Z-axis DATA2p

Y-axis DATA2

Y-axis COMMANDAc

X-axis COMMAND

Z-axis DATA1
Batch Writing

Z-axis COMMAND(A Unit)Z-axis DATA2
Z-axis COMMAND

Batch Writing

A-axis DATA1

A-axis DATA1(Each axis )A-axis DATA2

A-axis DATA2

A-axis COMMAND

A-axis COMMAND

Writing

X-axis Control I/O

X-axis Control I/O

Writing

Y-axis Control I/O

Y-axis Control I/O

Writing

Z-axis Control I/O

Z-axis Control I/O

Writing

A-axis Control I/O

A-axis Control I/O

Writing

General-purpose I/O

General-purpose I/O

Writing

Extend I/O 0

Extend I/O 0

Writing

Extend I/O 1

Extend I/O 1

Time lag-4-

AL2-02/USB

Instructions Manual● AL2-02/USB is a master for the AL-Ⅱ series that can do the direct connection to the USB port of PC.
The user controls the motor controller and I/O etc. of the AL-Ⅱ series by this master.
・ It conforms to USB2.0( FULL SPEED:12Mbps ) .
・ Shape is small in W24 × H76.1 × D94.4. And, it is a master unit that can be handled like HUB.
・ Confirming the operation of each axis of each slave unit and the I/O signal can do immediately without the user
program by the USB off-line application software that our company offers.
Moreover, the master can back up the setting data of each slave unit.
The setting data that this master backs up can transmit each slave automatically when the Initial-data-transferfunction is executed. Also, it is possible to overwrite data from the user application.

1-2. Product configuration
Product nameRating

Maker

Quantity

Remarks

Master of AL-Ⅱ

AL2-02/USB

Melec Inc.

1

For USB(Main Unit )Connector

51103-0300

Molex

1

For power supply connector(Accessory )Contact

50351-8100

Molex

4

(Accessory)

1-3. Example of system configuration
AL-Ⅱ USB MasterAL2-02/USB

ONLINE :User application* 15 slave's unit can be connected by one Master board.
AL-Ⅱ series

OFFLINE:Initial data edit/Kind operation

Slave Unit

J1

PC

J2

Motor

J12
J8

J4

20Mbps/50m or 10Mbps/100m

Driver
X-axis

1 2
PL

RDY

MADE IN JAPAN

2C-776Av1 etc.
J14

OFFLINE

AL-Ⅱ communication cable

ONLINEONLIEOFFLINEUSB

Stepping or Servo

J3

MADE IN JAPANJ2

DC+24V

S1

J1

Terminator CB-54/R

Y-axisJ13J9J4Extend I/O

J5
J6 J7

J3DC+24V● MPL-45-01vx.xx/AL2W32 *1

CB-52/3232-MIL etc.

J10 J11※ Insert core

Device driver(ZCAT2032-0930)

Z-axis
J4 IN

J6 IN

MADE IN JAPANJ5 OUT

Extend I/O Interface cable

J2

DC+24V・ Windows XP( 32 bit)

J3 OUT

J1・ Windows 2000

・ Windows Vista( 32 bit)

A-axis・ Windows 7(32 bit)

(32/32 points)

5Mbps/1m or lessSensor● MPL-46-01vx.xx/AL2W64 *1

CWLM,CCWLM,ORG,NORG,EA/EB signal/ Each axis

・ Windows XP( 64 bit)・ Windows Vista( 64 bit)・ Windows 7(64 bit)

*1 Version No. … Please confirm the latest version of vx.xx at the manual of the device driver.
・ AL-Ⅱ series prepared connectable cables easily.
Please refer to the "connection / others" instruction manual for details of connection of the AL- Ⅱ series.
Example of other AL-Ⅱ series
Master
AL2-01v1/PCI

Controller
2C-771v1

General-purpose I/O ( Extend type and Slave type)

Controller with built-in driver
2CD-7710v1/ADB5F30

2CD-7713v1/GDB5F40

CB-53/1616-MIL

2CB-01v1/3232-MIL

2CB-02v1/1616-MIL

MADE IN JAPAN・ For stepping or
simple servo

・ 2-axes for 5-phase
stepping motor
・ 0.75 A/phase

J4IN

J3 DC+24V

J3 DC+24V
IN
IN

MADE IN JAPAN

J6

J4
J8
J6

MADE IN JAPAN

J2

OUT

J1

OUT
OUT

J1

J7
J5

J1

・ 4-axes

J5J6

DC+24V/X

J11

J2

RDY

J7
MOTOR/X

S3
S6 S4

S5

J1

J8
J14

J1

・ Master for PCI

J2

J8

DC+24V/Y

J5 DC+24V

MADE IN JAPAN

S9
J9

S7
S10 S8MOTOR/Y

J10

J2

J6
S4
J7
MOTOR/X

04

503

J2

TO C OS

DC+24V

J6

J2

8

S3

J16

J4 IN

KP1516‑0A+24V

MADE IN JAPANDC +24V/X

RDY

J3 SENSOR/X

J3 SENSOR/X

J9
J9

J4

OUT

J3 OUT

J1

04

503

MOTO R/Y

T OC O S

GND

J15

J4 SENSOR/Y

J4 SENSOR/ Y

S6

1

J5

S5

4
J7

J5 DC+24V

MAD E IN JAPA N

DC +24V/Y

J8

J17

+24V

3.5A

IN

J3 DC+24V

1

GND

MADE IN JAPAN・ 2-axes for 5-phase

・ Extend type・ Slave type・ Slave typestepping motor

・ In: 16-points

・ In: 32-points

・ In: 16-points

・ Out: 16-points

・ Out: 32-points

・ Out: 16-points

・ 1.4 A/phase-5-

AL2-02/USB

Instructions Manual
1-4. Function block diagram
AL2-02/USB

control block

U n i

a c e

S l
A L - Ⅱ

a v e

f
e r
n t
I

I

A L - Ⅱ

N E
L I
O N

r
C o n tA L - Ⅱca

 Memoryf

OFFLINE(Slave Data back up)

U S B

I

n

t

e

r

U S B

e



S O L A T It Control block

U S B

I

n

U S B

ONLINE

o l

e

r

f

t

c

 Serial interface

a

e



 ONLINE ( USB) interface part
This is an interface block with USB.
ONLINE( USB) is an universal serial bus port used when controlling from the user application.
 OFFLINE (USB) interface part
This is an interface block with USB.
Setting and easy operation of each slave can be done by the application software for initialization.
* ONLINE and OFLINE cannot be controlled at the same time.
Execute it after stopping the application from ONLINE when you control from OFFLINE.
 Control block
This is a control block between USB and the serial communications.
 Serial interface control block
This department is control block for AL-Ⅱ serial communication.
The AL- Ⅱ serial communications interface department is insulated with +24 V power supply and internal power
supply of AL2-02/USB.
 Memory
The initial data of each slave unit by the application software for initialization is stored on the memory in master.
When the Initial-data-transfer-function is executed, master automatically sets the initial data to each slave unit.

-6-

AL2-02/USB

Instructions Manual



 



1 2
PL

OFFLINE

J4



S1





J3

ONLINE

DC+24V

1-5. Externals of product

J1

J2

MADE IN JAPAN



ID

S1

1 2

AL2‑02/USB
Made in Japan

75700001







 J1

This is a shield connector of the RJ-45 type to connect with the slave unit of the AL- Ⅱ series.
The terminator of the AL-Ⅱ communication is installing in this master by fixation.

 J2This is a USB connector connected with the personal computer at ONLINE ( user application control ) .
(mini B type) J3

This is a connector connected for power supply +24 V of the main unit.

 J4This is a USB connector connected with the personal computer at OFFLINE ( support application control) .
(mini B type) S1

This is a dip switch to set for USB to be able to recognize the USB number.
This switch number must set for it not to overlap when two master are installed in PC.

 PL1, PL2

These are LED for the monitor.
・ PL1( Red)

… This LED lights when master detected abnormality of hard or abnormality of the
AL-Ⅱ communication. This display is maintained even if it switches to OFFLINE.

・ PL2( Green)… This LED lights when the access from ONLINE is possible.
This LED is turned off when there is a control right on the OFFLINE side.

 Cable clamp

The USB cable pinching by this clamping is prevented from coming off.

 Base install-ation part

These are installation hole when the main unit is installed in the vertical direction. ( two places)
Use the M3 screw.
Moreover, it is possible to install it in the DIN rail with a exclusive use DIN attachment lug.
Please refer to the connection/other manual for details.

 Base install-ation part

These are an installation hole when the main body is horizontally installed. ( two places )Use the M3 screw.

 JP1

This is a connector for adjustment of the main unit.
Do not connect anything.

-7-

AL2-02/USB

Instructions Manual
２． Specifications
2-1. General specifications
No. ItemSpecifications

1

Supply voltage

DC +24 V ± 10 ％2Power consumption 70 mA or less3

Operating ambient
temperature andhumidity

4

Storage temperature ・ 0 ℃ 〜 ＋ 55 ℃
and humidity
・ 80 ％ RH or less (without dew condensation)

5

Installation
environment

・ Inside a well-ventilated cabinet installed indoor, free from direct sunlight.
・ Not exposed to corrosive and flammable gasses, and not affected by oil mist,
dust, salt, iron powder, water, and chemicals.
・ Not subject to constant vibration or excessive shock.
・ Not affected by electromagnetic noise caused by power equipment.
・ Free of radioactive materials and magnetic fields, and not in vacuum.

6

Dimensions

W24 × H76.1 × D94.4 ( mm)・ Vertical direction installation: pitch 88 ( mm), two points
・ Horizontal direction installation: 88 × 54 (mm ), two points

7

WeightApprox. 0.15 kg

・ 0 ℃ 〜 ＋ 40 ℃
・ 80 ％ RH or less (without dew condensation)

2-2. Communication specifications
No. ItemSpecifications

1

USB interface

・ Conformity standard
・ Baud rate
・ Wiring distance・ USB connector・ connection number

2

AL-Ⅱ interface

・ Conformity standard: RS485 ( Insulation type)・ Transmission protocol: Protocol for AL-Ⅱ communication
・ Slave connection number : 1 〜 15 slave
・ Master address: H ' 0 fixation
・ Slave address setting range: H' 1 〜 H' F)・ Wiring distance/baud rate : 100 m (10 Mbps ) / 50 m (20 Mbps ): USB2.0: FULL SPEED( 12 Mbps): 5 m or less: mini B type: 2 unit *1*1 It is USB connection number of ONLINE sides that can be connected from one PC.
Connected number of OFFLINE sides is one.

-8-AL2-02/USB

Instructions Manual
2-3. Master specifications
No. ItemSpecifications

1

Connected
・ Reading of slave information
confirmation of slave
The slave type connected now can be read.

2

Error detection of
AL-Ⅱcommunication

・ Reading of error total number
The error total number detected in the AL-Ⅱ communication after the power supply isturned on can be read.
It is possible to use it for the evaluation of the communication environment.
When retrying is detected, it counts as an error.
The error total number can be counted 65535 times or less.
More than it do not update a count.
・ Clear of error total number
The value in which the error total number is counted can be cleared to 0.
・ Retry
It is a function to evade the stagnation of the entire system by retrying it when the influenceof the noise etc. is given to AL-Ⅱ communications.
The number of retrying is set by an Environment-set-function.
When retrying is made effective and the communication abnormality is detected, retrying is
automatically executed.
The setting of retrying is possible by the range from 0 ( non-retry ) to 3.

3

Initialize

・ Auto transmission of initialization
The master carries out initialization for all slaves automatically when user carries out an
Environment-set-function to a master.
・ Interlock
When an Environment-set-function is executed from the application, master executes
initialization ( a request) to each slave.
The slave product of the AL-Ⅱ series doesn't accept other requests until the initial-request
sent from master is received after the power supply is turned on.
When other requests are received, an initial error is returned.
As a result, master notifies the application the answer back.
When the internal logic on the slave side was reset by the power failure etc. momentarily,
operation by the improper data can be stopped.
Please execute to master an Environment-set-function, after turning on slave's power supply.

4

Backup・ The backup can easily edit the parameter of each slave from USB by initialization editing soft
ware by the OFFLINE, and a master can back up the edited parameter ( Initial data) .
The initial data which a master backs up transmit a message for each slave at the time of thepractice of the Initial-data-transmission-function automatically.

5

ONLINE/OFFLINE
Function・ As for the master, access are possible from ONLINE ( user application) and OFFLINE( support application) .
The OFFLINE is a adjustment tool to offer the application that the function used USB toenable machine adjustment without the application program development of the user
immediately for.

* ONLINE and OFFLINE cannot be controlled at the same time.
Execute it after stopping the application from ONLINE when you control from OFFLINE.
* Please refer to each slave unit manual about the specification of the slave unit executed by master.

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AL2-02/USB

Instructions Manual
2-4. Input and output signal table(1) Serial communication connector( J1)87654321● Connector:RJ-45( Shield type)● Recommended cable :KB-STP-□□ L□□ : length (〜 30 m or less)(Made by Sanwa Supply: It is not an accessory.)

J1
No.

Direction Signal name

Description

1

−

N.C

Connection is prohibited.

2

−

N.C

Connection is prohibited.

3

I/O

+AL Ⅱ

+ side input/output signal of the serial data( line driver positive logic )

4

O

+V

Power supply for AL-Ⅱ communication ( +6 V)

5

−

-V

GND for AL-Ⅱ communication ( 0 V)

6

I/O

-AL Ⅱ

- side input/output signal of the serial data( line driver negative logic)

7

−

N.C

Connection is prohibited.

8

−

N.C

Connection is prohibited.

(2) USB communication connector( for ONLINE: J2, for OFFLINE: J4)
12345

J2

J4

ONLINENo.

● Connector: mini B type
● Recommendation cable: KU-AMB5 □□□□ : length (〜 5 m or less )(Made by Sanwa Supply: It is not an accessory.)

12345

OFFLINE

Direction Signal name

Description

1

−

VCC

USB bus power supply

2

I/O

-DATA

- side input/output signal of USB communication

3

I/O

+DATA

+ side input/output signal of USB communication

4

−

N.C

Connection is prohibited.

5

−

S.G

GND of USB communication
Reference
For more information about a cable preparing in the
AL-Ⅱ series and a recommended cable, refer to the
instruction manual of "connection / others" .

(3) Power supply connector ( J3 )(Contact insertion side )
1

1

2

J3

3

● Connector● Conformity connector● Conformity contact● Conformity crimp tool
● Acceptable wire
● Conformity cableNo.

Direction Signal name

: 53426-0310 ( Molex): 51103-0300 ( Molex: accessories): 50351-8100 ( Molex: accessories): 57295-5000 ( Molex): AWG28 〜 AWG22(Coating φ 1.15 〜φ 1.8)
: CE-76/003C10-51103(1 m: It is not an accessories.)

Description

1

I

+24 V

DC +24 V power supply

2

−

GND

GND of +24 V power supply

3

−

F.G

Frame GND is connected with case.

- 10 -

AL2-02/USB

Instructions Manual
2-5. Outside dimensions
General tolerance ± 0.5 mm or less
Externals tolerance ± 1 mm or less
76.1
(25)

24

71.3

(Dimension of installation for user )(Dimension of installation for user )
6

(J4)

1 2

MADE IN JAPAN

75700001

J1

AL2‑02/USB

J2

(J2)

ONLINE

Made in JapanJ4

OFFLINE

When DIN attachment lug (CP-14v1/AT2) is installed.

J3
ID

S1

S1

1 2

1 2
PL

J1

75700001

Made in JapanJ2

ONLINE112

MADE IN JAPANJ4

OFFLINE

AL2‑02/USB

DC+24V- 11 -

10

88 (Dimension of installation for user)

S1

1 2
PL

79.6

ID

S1

94.4

J3

DC+24V88 (Dimension of installation for user)

54

AL2-02/USB

Instructions Manual
３． Setting
3-1. Setting of USB number ( S1)ONThe USB number of this product is allocated by dip switch S1.
(By default ( When the shipment from the factory ) , the dip switch is USB number 0.)
When the AL2-02/USB are used at one more, assign USB numbers such a way that no numbers are duplicated.
The following figure shows an example in which USB number 1 is assigned.

ID

3

4

1

2

ON sideS1

1 2

USB No.
0
1
Set is prohibited.
Set is prohibited.
Set is prohibited.

4
OFF
OFF
OFF
ON
ON

Switch No.
32
OFF OFFOFF OFFOFF ONOFF ONONON

1OFF ← Factory set
ON
OFF
ON
ON

・ When turning on power, the setting of dip switch( S1) becomes effective.
Set switch while turning off the power supply.
And, turn on the power supply after the setting change.

3-2. Setting of AL-Ⅱ communication
AL2-02/USB does the following setting of AL-Ⅱ communications by executing Environment-set-function unlike theswitch setting done with other slave units.

(1) Address setting of the AL-Ⅱ series
The master address is H' 0 fixation.
And, please set not to overlap the address of each slave unit.

(2) Baud rate setting of the AL-Ⅱ series
As for the AL-Ⅱ communication baud rate, 10 Mbps/100 m or 20 Mbps/50 m can be selected.
To transmission rate to set in AL2-02/USB, please set the transmission rate of all slave units connected on AL-Ⅱ
communication.

(3) Retry number setting of the AL-Ⅱ series
The setting of retrying is possible by the range from 0 ( non retry ) to 3.
◆ The address of the slave unit, the transmission rate setting become effective at the time of power supply injection.
Please turn on the power supply again without fail.
And to the master execute an Environment-set-function after these setting changes.
Please refer to the device driver manual for Windows for details of function specification.

3-3. Setting of Extend Communication
When the Extend-unit is used, the address setting of the Extend-unit and the hard setting of the baud ratesetting etc. are unnecessary.
◆ The Extend-unit is controlled by an Extend-unit-communication-set-function
and an Extend-unit-communication-control-function.
Please refer to the details of function specifications at a device driver instruction manual for Windows.

- 12 -

AL2-02/USB

Instructions Manual
４． Connection
4-1. Connection of AL-Ⅱ communication system
Operation not anticipated may cause damage of the machine and the product.

 QAUTION

To prevent the malfunction by the noise, the AL-Ⅱ communications cable recommends
recommended cable.

(1) Core connection of AL-Ⅱ communications cable
Please install the core in the mastering side. As a result, the personal computer system including AL communications
is operated by stability.
The core is fixed with INSULOK.

The core is prepared by our company.

Master side

Please refer to the "connection/other" manual.

Core: ZCAT2032- 0930
Installs it within 40mm.

(2)Connection of terminatorAL2-02/USB mounts the terminator of the AL-Ⅱ communication, is connected, and the setting is unnecessary.
It is necessary to install AL2-02/USB to the AL-Ⅱ communication network edge.
Connect terminator ( CB-54/R) with the slave unit arranged on the AL- Ⅱ communication network edge.
Do not connect the terminator with other equipment.
USB(Recommendation 3m or less)

AL-Ⅱ communication networkCore

Terminator
CB-54/R

PC

AL2-02/USB

2C-776Av1

2CD-7710v1/

2C-776Av1(Master)etc.

ADB5F30 etc.

etc.

Terminator

Terminator

Terminator

Terminator

Always on(Inside)

Unconnection

Unconnection

Connection(3) Wiring distance of AL-Ⅱ communication
The total wiring distance of the AL- Ⅱ communications cable is the following range including the multidrop wiring.
・ The USB communications cable is within recommend 3m( max. 5m) .
・ The wiring distance of Extend I/O doesn't relate to AL- Ⅱ communication baud rate ( RATE).
・ The wiring distance of Extend I/O from each slave is within 1 m.
L1 / RATE(Multi drop)
Terminator( Build-in)

Terminator

Address

Address=0=1

Address(Slave unit)

Address

Address

=2

=14

=15

(Extend I/O)

(Extend I/O)

(Extend I/O)

L2

(Master)(Extend I/O)

● AL-Ⅱ communication baud rate and wiring distance
RATE
Wiring distance
L1 ( AL-Ⅱ communication)
L2 ( Extend I/O communication)

10 Mbps
20 Mbps
100 m or less
50 m or less
1 m or less

● The number of slaves that can be connected directly with the AL-Ⅱ communication are 15 units or less.
Extend I/O that can be extended directly from the slave unit is not included in the number of slaves.

(4) Power supply and slave power supply for communication
The AL-Ⅱ communication power supply of each slave unit is supplied from the AL- Ⅱ master through thecommunications cable so that the entire AL- Ⅱ communication network should not become unstable when the
power supply on each slave unit side is intercepted.
The reconnection of communications can be done by executing Environment-Function to the master when the power
supply of the main unit on the slave side is obstructed.
- 13 -

AL2-02/USB

Instructions Manual

５． OFFLINE
As for AL2-02/USB, the access from ONLINE and OFFLINE is possible.
Confirming the operation of each axis of each slave unit and the I/O signal can do immediately without the user
program by the OFFLINE application software that our company offers.
* ONLINE and OFFLINE cannot be controlled at the same time.
Execute it after stopping the application from ONLINE when you control from OFFLINE.

5-1. Support environment of OFFLINE
Item
Support OS

MAP-19-01vx.xx ( Initial data edit software for AL-Ⅱ series)
・ Microsoft Windows 7 ( 32 bit version)・ Microsoft Windows Vista ( x86 version)・ Microsoft Windows XP ( 32 bit version)・ Microsoft Windows 2000 Professional SP4

Support model・ IBM PC/AT Compatible
・ DOS/V

Communication
specification

・ USB 2.0 (FULL SPEED: 12 Mbps )・ mini B type* The exclusive use USB driver is necessary to operation from OFFLINE with USB.
Install the USB driver attached to device driver MPL-34-01vx.xx/AL2W32 or MPL-35-01vx.xx/AL2W64 forWindows of AL2-02/USB beforehand.
* Please download initial data edit software MAP-19-01vx.xx being offered from our homepage to the application
software for OFFLINE.
* Version No. … Please confirm the latest version of vx.xx at the manual of the device driver,and MAP-19 application.

5-2. OFFLINE specification- 14 -

AL2-02/USB

Instructions Manual● The backup data of master･The data of the specified file can be written to master.
･It is possible to read out data from the master.
Moreover, data can be preserved by .AL2DAT ( TEXT ) file format.
･Data can be printed.
● The connection status of the slave unit connected with master can be confirmed.

● When the unit-number is specified, general-purpose I/O and Control I/O of the unit input is displayed.
Moreover, the level of the output can be reversed by clicking general-purpose I/O and Control I/O output button.
● After the unit-number is specified, the communication of Extend I/O unit can be turned on and off with the
ON/OFF button of Extend I/O unit.
・ When Extend I/O communication is turned on, Extend I/O input status is displayed.
・ The level of the output can be reversed by clicking Extend I/O output button.
When the Extend communication is turned off with the output turned on, the output maintains the current state.
● The following can be displayed by specifying the unit and the axis.
･STATUS1 PORT of each axis of unit.
･Value of ADDRESS COUNTER.
･Present speed under output.
･Status of input of sensor.
● Each data of specified SPEC INITIALIZE of the axis, SPEED PARAMETER, and ORIGIN PARAMETER is displayed
as the data that a present master stores.
It is possible to set it directly to master with each button of SPEC INITIALIZE, SPEED PARAMETER and ORIGIN
PARAMETER as backup data of the specified axis.

● The axis of the specified unit can execute each drive by clicking each button of ORIGIN DRIVE, SCAN DRIVE,INC INDEX DRIVE, and ABS INDEX DRIVE.
Moreover, the address counter is preset an arbitrary value.
● The drive can be stopped with the FSSTOP button ( immediate stop) or the SLSTOP button ( deceleration stop)
while executing the drive.

- 15 -

AL2-02/USB

Instructions Manual
６． Maintenance
Incorrect handling may lead to an electric shock.

 QAUTION

Inspection and maintenance need to be conducted by an expert engineer only.
Before inspecting and maintaining this product, turn off the power.

An electric shock, injuries, and fire may be caused.

 QAUTION

Do not make repair and modification such as product disassembly and parts
replacement.

6-1. Maintenance and inspection(1) Cleaning method
To use the product in a favorable condition, conduct cyclic cleaning as follows.
・ During the cleaning of the connector terminal plating part, wipe it with a dry, soft cloth.
・ If stain is not removed by the dry wiping, soak a cloth in a solution in which neutral detergent is diluted,
wring it out, and wipe off the stain with it.
・ Do not use a high-volatile solvent such as benzene and thinner, and a wipe.
This may deteriorate gold plating by transformation and oxidation.

(2) Inspection method
To use the product in a favorable condition, conduct periodic inspection.
Usually conduct the inspection every six months or every year.
To use the product in an extremely hot and humid or dusty environment, shorten the inspection interval.
Inspection item

Inspection details

Environment state

Check whether ambient and intra-device temperatures
are appropriate.

0 〜 + 40 ℃

Thermometer

Check whether ambient and intra-device humidifies
are appropriate.

10 ％〜 80 ％ RH
(without dew condensation )Hygrometer

Check whether dust is deposited.

No dustVisual check

Installation state

Criteria

Inspection method

Check whether the product is firmly secured.

Not loose (6 kg ･cm )Torque wrench

Check whether connectors are completely inserted.

Not loose and removed

Visual check

Check whether cables are to be removed.

Not loose and removed

Visual check

Check whether connecting cables are to be broken.

Appearance is normal.

Visual check(3) Replacement method
If the product becomes faulty, repair it immediately because the entire device system may be affected.
To make the repair smoothly, a spare product should be prepared.
・ To prevent an accident such as an electric shock during replacement, stop the device and turn off the power.
・ If poor contacting is assumed, wipe contacts with a clean cotton cloth that is wet with industrial alcohol.
・ Take a record of switch settings during replacement and return them to their state before the replacement.
・ After the replacement, confirm that the new product is normal.
・ For the faulty product replaced, have it repaired by returning it to the company with areport indicating as much details on the failure as possible.

6-2. Saving and disposal(1) Saving method
Save the product in the following environment.
・ Indoor ( Place in which the product is not in the path of direct sunlight.)
・ Place at ambient temperature and humidity within the specifications.
・ Place free of corrosive and inflammable gases.
・ Place free of dust, dirt, salt, and iron powder.
・ Place free of direct vibration and shock to the product body.
・ Place free of water, oil, and chemicals droplets.
・ Place where a person cannot ride or put objects on the product.

(2) Disposal method
Handle the product as industrial waste.

- 16 -

AL2-02/USB

Instructions Manual

The main parts which revised by this manual

Parts

Content

None- 17 -

Technical Service
TEL.(042)664‑5382 FAX.(042)666‑5664
E‑mail s‑support@melec‑inc.com

Sales and Service
TEL.(042)664‑5384 FAX.(042)666‑2031
URL:http://www.melec‑inc.com
Melec Inc. Control equipment marketing department
516‑10,Higashiasakawa‑cho,Hachioji‑shi,Tokyo 193‑0834,Japan
This Operating Manual is subject to change without prior noticefor the purpose of product improvement.

C1108