Pledco LDU3000, LDU3000A User Manual

LED Display

LDU3000 (A) User’s Manual

VER: V1.1

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translated, or recorded via any means without the prior written consent of

PLEDCO™

PLEDCO™ may make improvements and/or changes to the product(s) and/or

the program(s) described in this publication at any time without notice. This
publication could contain technical inaccuracies or typographical errors. Changes
are periodically made to the information in this publication; these changes are
incorporated in new editions of this publication.

Page 2 of 20

Brief Introduction .......................................................................................................................................... 4

Chapter I: Functions & Installation of LDU3000 (A). ..................................................................................... 5

1. Functions of LDU3000 (A) ................................................................................................................. 5

2. Installation of LDU3000A .................................................................................................................. 7

Chapter II: Wiring & Application of LDU3000 (A) ......................................................................................... 9

1. Signal Diagram of PLEDCO Screen system ........................................................................................ 9

2. LDU3000/LDU3000A | Connect via receiving card ......................................................................... 10

3. LUD3000/LDU3000A - Connection to Light Sensor......................................................................... 12

4. LDU3000/A-Connection and Communication to Computer ........................................................... 13

4.1 RS232 ...................................................................................................................................... 14

4.2 Communication via RS485 ...................................................................................................... 15

4.3 Communication via Ethernet .................................................................................................. 15

5. Connecting VPU3000 and LDU3000 via Optical Fiber ..................................................................... 15

Chapter III: Maintenance of LDU3000 (A) ................................................................................................... 16

1. Backup LDU3000 to computer ........................................................................................................ 16

2. Restoration and Maintenance ........................................................................................................ 16

2.1.1 Replacement of LDU3000 ................................................................................................... 16

2.1.2 Replace mainboard inside LDU. .......................................................................................... 16

2.1.3 Configure Parameters ......................................................................................................... 16

2.1.4 Press Restore ....................................................................................................................... 16

2.1.5 Switch off and restart the power supply of LDU. ................................................................ 16

2.1.6 Check if screen is working normally. ................................................................................... 16

3. Replacement of Optical Fiber and Optical Fiber Plug ................................................................. 17

Appendix ..................................................................................................................................................... 19

1. Explanation for QS5800 in LDU3000HUB ........................................................................................ 19

1.1 Layout of QS5800 .................................................................................................................... 19

1.2 Functions of Interfaces............................................................................................................ 19

1.3 Functions of Dip Switch SW1 .................................................................................................. 20

2. Device and Parts.............................................................................................................................. 20

Page 3 of 20

Brief Introduction

Chapter I: Functions & Installation of LDU3000 (A), covering functions
and installation of LDU3000 (A)

Chapter II: Connection & Application of LDU3000 (A) explains offline
connections and synchronous connection.

Chapter III: Maintenance of LDU3000 (A), explains backup,
maintenance and functions of control boards.

Page 4 of 20

Chapter I: Functions & Installation of LDU3000 (A).

1. Functions of LDU3000 (A)

 LDU3000: for indoor

applications and fast
installation of moveable

Page 5 of 20

 LED screensLDU3000A：For outdoor use, with IP level of 54.

Fig. 1

Functions

 MAX: 16 signal outputs
 Connect to VPU3000 to form a synchronous playing system
 Use alone as an offline system
 MAX resolution: 1024X768

Page 6 of 20

Communications:

 Fiber Optic (for synchronous system), Ethernet (Offline), RS232 (for

updating), RS485

 Connects to Light Sensor for examining real-time brightness.
 Adjust the brightness of screen automatically.

2. Installation of LDU3000A

LDU3000A is waterproof and suitable for outdoor installation. LDU3000A can be
installed by the sockets as seen in Figure 3 and 4. LDU3000A can be fixed to
frameworks by the following dimensions.

Page 7 of 20

Page 8 of 20

Chapter II: Wiring & Application of LDU3000 (A)

1. Signal Diagram of PLEDCO Screen system

Page 9 of 20

2. LDU3000/LDU3000A | Connect via receiving card

A) Starting from the right …

i. A1-1 connects to the LDU3000’s Port 1

ii. A1-2 connects to Port 2.

iii. Continue sequentially for the remainder cabinets.

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B) When the LDU3000A HUB is connected to the display, A1-1 cabinet should

be connected to Port 1 of the QS5800, which is located inside the
LDU3000A Hub.

i. Cabinet A2-1 should connect to Port 2

ii. Continue sequentially for the remainder cabinets.

Note: Refer to QS5800 in the Appendix.

Page 11 of 20

3. LUD3000/LDU3000A - Connection to Light Sensor

A) Light Sensor

B) Connect the Light Sensor directly to the Sensor Port at the back of

LDU3000, see the picture below:

C) Connect the Light Sensor directly to the Sensor CON interface on the

QS5800 main board in the LDU3000A, see the picture below:

Page 12 of 20

4. LDU3000/A-Connection and Communication to Computer

 Independent COM interfaces are on the QS5800 main board inside the

LDU3000/A.

 COM1: RS232 or RS485;

 If SEL (connecting to GND) is selected, the communication

should be RS232

 If SEL is suspended, the communication be RS485
 RS232 and RS485 cannot be used together.

 Ethernet Port is inside QS5800 main board inside the LDU3000/A.

 CON1: Ethernet interface

 2 USB Ports

Note: Continue reading for in-depth explanation of the QS5800.

Page 13 of 20

4.1 RS232

A) When the system is offline, RS232 cable may be used to communicate with

QS5800 to change screen content or settings.

B) When using the VGA synchronous system, only RS232 cable should be used

to update the CPU of QS5800.

Note: Whether offline or synchronous system, the communication of RS232 must
be considered while doing the wiring, since RS232 has a short communication
distance. RS232 interfaces should be prepared at the bottom of the screen (or
bottom of supporting columns) while doing the wiring, this will allow users to
easily connect to a laptop.

C) RS232 Connection:

Page 14 of 20

4.2 Communication via RS485

4.3 Communication via Ethernet

A. Where the system is offline, Ethernet cable may be used to connect QS5800 main board, inside

the LDU3000A, to COM1 interface.

5. Connecting VPU3000 and LDU3000 via Optical Fiber

 There two optical fiber interfaces in the LDU:

1. Data transmission

2. Overheating backup

“To ensure the screen door
from opening and closing,
the wire and cables must
follow along the suction
canals at the bottom of the
cabinets …”

Page 15 of 20

Chapter III: Maintenance of LDU3000 (A)

1. Backup LDU3000 to computer

 PLEDCO’S Tools Program should be used when backing up LDU3000 to a

computer.

 For operation details, please refer to PLEDCO Tools User Manual.
 Once Tool Program is opened begin LDU information saving process.

A) Select Tool\Backup LDU date\Save to computer.
B) Select a location for saving backup file and name the file to be saved.
C) Press “Backup” button to start backing up.
D) Wait until 100% completion.

2. Restoration and Maintenance

2.1.1 Replacement of LDU3000

2.1.2 Replace main board inside LDU.

 Replace with a new LDU main board, and connect to power supply,

communication cables, and optic fiber.

 Double -check all connections are the same as before.

2.1.3 Configure Parameters

 Open PLEDCO Tools and select Tool\Recover\Recover from

computer

 Confirm the prompting message
 Open the LDU backup file from your computer

o For example, backup.LDU

2.1.4 Press Restore

 Begin back up and wait for 100% completion.
 You can follow the same operations to update all the LDU(s) (if

there are many LDUs).

2.1.5 Switch off and restart the power supply of LDU.

2.1.6 Check if screen is working normally.

Page 16 of 20

3. Replacement of Optical Fiber and Optical Fiber Plug

 Optical Fiber should be multimode.
 For outdoor use, the optical fiber is usually fusion spliced by experts on-site

and does not need to be changed.

 For indoor use, optical fiber is usually grafted in the optical fiber connector.

o Be careful when inserting or unplugging the optical fiber head, not to

damage it.

Review the following steps when unplugging the optical fiber:

Page 17 of 20

Review the following steps when inserting the optical fiber:

Page 18 of 20

Appendix

1. Explanation for QS5800 in LDU3000HUB

1.1 Layout of QS5800

1.2 Functions of Interfaces

 Ports 1-16: Data output interfaces, respectively connected to input of the

first cabinet for each line of the screen. Counting from top to bottom as
follows … P1, P2, and P3…

 COM1: RS232 or RS485;

o If SEL (connecting to GND) is selected, the communication should be

RS232

o If SEL is suspended, it should be RS485.

 COM 2: RS232COM 7: Sensor CAN bus interface for light sensor,

temperature sensor, humidity sensor.

Page 19 of 20

1.3 Functions of Dip Switch SW1

DIP1~DIP4=AD (4 ….0) Address Range：0~7

Note: “0” means ON, “1” means OFF.

2. Device and Parts

Page 20 of 20