15
KL II
Series User Manual
3.2 Installation site environmental requirements
1. Before installing the fine pitch series products, test the on-site temperature and humidity to ensure that
the temperature is within 35°C and the humidity is within 70%RH before installation;
2. When the environment exceeds (35
℃
, 70%RH), the screen body is in high temperature and high
humidity, which will cause the LED lamp beads to be damp, and cause a large number of LED lamp beads
on the screen to be damaged;
3.3 Precautions for product installation
3.3.1 Before installation
1. Determine the power distribution plan: Give a specific power distribution plan based on the actual display
size and arrangement sequence, and determine the specifications and quantity of the power distribution
box, main power cords, and the number of power cords connected to the box. Determine the specifications
of the sending box, video processor, and the number of network cables according to the total pixel points
and arrangement sequence.
2. Precautions for power distribution
①
The wiring is neat, horizontal and vertical, and non-cable wires must be laid with ducts or ducts;
②
Lay the signal wires separately from the power wires to avoid interference;
③
The wiring considers three-phase power balance, and try to have the same number of display boxes for
each phase of electrical load;
④
The wire end of the cable needs to press the wire terminal,
⑤
Encode the thread head, and the overall power distribution diagram should be consistent with the actual
wiring to facilitate subsequent troubleshooting;
⑥
Under the premise of considering the safe current carrying capacity, lay the cables from the distribution
box to the display box according to the actual box arrangement;
⑦
For long-distance wiring, consider line loss voltage to ensure that the voltage at the display screen is
within the allowable range;
3. Steel structure construction: construction in accordance with the requirements of the drawings. The
construction must be coordinated with the pipeline construction, and the person in charge of installation
shall supervise it.
4. Tool preparation: match and prepare the types of tools commonly used for display installation, including
screwdrivers, wrenches, multimeters and other tools.
3.3.2 During installation
1. Installation of distribution box: The installation of distribution box must be firm and reliable. The protective
grounding is reliable.
2. Cabinet installation: equipment handling. Sufficient manpower must be equipped to ensure safety. Pay
attention to handle with care, do not knock and damage the appearance and function of the cabinet. When
installing the display screen, check whether the magnet feet are tightened. The power cord and network
cable must be connected in place and correct, whether the network cable is inserted in place and the
screen connection sequence is correct.
3. Wiring sequence: first connect the box with a box-connecting power cord in series, and then use 3 main
power cord to connect from the distribution box or socket to the bottom box.
4. Power connection: First confirm that the power supply terminal is in the "disconnected" state, and the
self-consumption terminal must be connected (equipment switch or distribution box, etc.). Connect the
power supply terminal only after checking that the connection of the power supply terminal is correct.
Connect the protective ground first, then connect the neutral line, and finally connect the phase line. After
the power supply is connected: Check the power supply terminal switch or the equipment power distribution
voltage, and "cut off" the power supply after confirming that it is correct. The power cord must be
distinguished by color, ground wire, neutral wire and A, B, C and other phase wires.
5. Cabinet adjustment: Check whether the display screen is flat and clean. Fine-tune the gap between the
module and the module, and between the box body and the box body. When installing, make sure that the
box body and the box body must be locked with screws to ensure the left and right/up and down flatness
between the boxes.
6. Power test: Before supplying power to the entire screen and providing control signals, please carefully
check whether the power and signal lines are connected correctly; please carefully check the "L" and "N"
lines on the AC power input port of each cabinet. "PE" line, confirm that there is no short circuit between the
three (measured with a multimeter).
7. Power-on detection: fault judgment, check the appearance. Power-on detection whether there is a bad
screen and whether the text output is correct; if a fault occurs, judge and eliminate the fault based on the
