Electrical installation:
In practical field applications, we may encounter various problems during installation, including mechanical and electrical ones. If we are not careful or do not follow the proper procedures, it will affect the normal use and lifespan of the encoder . The following instructions provide detailed explanations on installation, which will be more helpful for our application experience.
Electrical interfaces:
Each electrical interface has its own characteristics, as well as different baud rates and transmission distances. The appropriate interface can be selected based on the specific application environment. The actual transmission distance is greatly affected by factors such as the transmission rate, the interference environment of the encoder and communication cable installation, grounding, and cable material selection.
Cable wiring:
The encoder's wiring should be connected according to the electrical instructions in the parameter table. Unused wires should be individually insulated or have additional insulating sleeves added to prevent damage to the encoder due to short circuits with other signal or power lines.
Encoder electrical wiring must be performed with the power completely off. Unplugging or plugging in connectors or cables while the power is on can easily damage the encoder.
The power supply voltage must be within the rated range; prolonged use with excessively high voltage will damage the encoder.
The power supply voltage must be stable with minimal fluctuations. Do not share the power supply with high-interference components (such as frequency converters, solenoid valves, and contactors). Alternatively, a filtered power supply can be used.
Choose the appropriate cable for the specific application environment:
(1) Select drag cables in the drag chain trough to avoid mechanical damage to the cables and sockets;
(2) Select cables that are resistant to oil, coolant, and cutting debris on the processing equipment to prevent them from penetrating into the cable connectors and encoder housing;
(3) Encoder communication cables must be dedicated shielded cables.
When wiring encoder communication cables, the following points should be noted:
1. Communication cables must be kept away from equipment that causes severe magnetic field interference, such as motors, transformers, and frequency converters;
2. Communication cables must be laid separately from power cables, high-power cables, and high-noise cables, and it is best to use well-shielded metal cable conduits;
3. Maintain a minimum distance of 2cm between cables inside the electrical cabinet and other cables outside the electrical cabinet;
4. If space is limited, please use metal partitions, metal conduits, and metal cable trays, and ensure proper grounding;
5. Cables should be laid out reasonably to avoid excessive cable lengths that could block cable trays;
6. To avoid coupling interference, the possibility of signal cables and power cables running parallel should be minimized;
7. Cables should be placed as close as possible to metal components, such as control cabinet panels, beams, and metal rails;
8. Metal cable brackets must be used, and the connection points of the brackets must be electrically connected and grounded;
Component layout:
When installing encoders on site, they should not be installed together with high interference sources such as frequency converters, transformers, and solenoid valves. Maintain a distance of 10cm or install metal partitions for isolation.
When the module communicating with the encoder is installed in the electrical cabinet, it should not be installed together with high interference source components such as frequency converters and contactors, or frequently switching components. A distance of 3cm should be maintained, or a metal partition should be installed for isolation.
Grounding protection:
The cable's shielding should be grounded at one end only at the signal receiving end to prevent leakage current between the two grounding points from damaging the cable;
If the cable shielding cannot provide adequate grounding protection, a separate grounding wire needs to be connected for additional shielding.
When making long-distance grounding connections, a yellow-green wire needs to be added between the product casing and the grounding point as an equipotential compensation wire;
Shielded cables must be connected to the metal casings of electrical components (encoders or electrical cabinets) at both ends, ensuring proper connection (large-area contact with metal surfaces);
The above installation instructions are provided for your reference during on-site installation and maintenance. We hope they will help you improve work efficiency, prevent malfunctions as early as possible, and ensure the normal operation of the encoder.
