For some motion systems with high load requirements, we need to use an electrical control cabinet. If the load is not high, such as less than 2 tons, we generally use an electrical control box integrated with the motion platform. This article will introduce in detail of Allcontroller motion platform electrical system.
The electric control cabinet (box) is a control cabinet (box) that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-enclosed metal cabinet or on a screen according to the requirements of electrical wiring. Its layout should meet the requirements of normal operation of the power system, facilitate maintenance, and not endanger the safety of people and surrounding equipment.
Including (distribution cabinet) (distribution box) (electrical control cabinet), etc., in normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches. In case of fault or abnormal operation, the circuit can be cut off or alarmed with the help of protective electrical appliances. Various parameters in operation can be displayed by measuring instruments, and certain electrical parameters can be adjusted to prompt or send signals for deviations from normal working conditions.
As an important component of the motion platform, this control cabinet is equipped with the servo driver and motion control computer of the six-degree-of-freedom motion platform drive system, providing normal power supply and emergency power supply for the internal equipment of the control cabinet to ensure the normal operation of the system; at the same time, it provides the system with a control panel including an emergency stop button (E-Stop), a start button, a stop button, a fault indicator light, etc.; it provides a communication interface and a logic interface for the motion platform system; it has an independent lighting system inside for easy maintenance; and it has a reliable circulation cooling system.
Features of Motion Platform Electrical System Cabinets
1. Cabinet ventilation and heat dissipation: hot air density is small, high temperature in the upper part of the cabinet. Air intake layout in the lower part of the cabinet, ventilation layout in the upper part of the cabinet, enough cooling power to meet the cabinet effectively cabinet air circulation, to avoid high local temperatures caused by abnormal failures and devices to accelerate aging.
2. Cabinet layout: cabinet internal high-voltage and low-voltage separate layout of high-voltage and low-voltage cable cabinet separate routing to ensure a certain distance.
3. To meet the requirements of the installation space, the temperature inside the cabinet is easy to gather in the upper most part of the cabinet, the controller and 10 is not laid out in the upper most space.
4. Temperature and humidity monitoring: the cabinet thermostat near the controller and 10 devices installed to monitor the controller temperature and humidity.
5.EMCBAR layout in the module below, for the proximity of the connection cable shielding 360-degree ring function of grounding.
6. Metal connectors and shielding crimping: the use of metal connectors, shielding layer 360-degree circular grounding. The shield does not use “pigtail” method, use double-ended ring grounding.
7. Inlet protection and filtering: lightning overvoltage protection or surge suppression terminals, arranged in the cabinet at the inlet, effectively filtering out external interference, to avoid mixed wiring.
8.PE ground connection, equipotential connection: all metal parts using copper flat grounding strap connected together at the same potential, there is no potential difference on the damage to the components, to ensure that the cable shielding layer at both ends of the ring grounding does not exist in the loop current. Metal mounting back plate, no paint or mounting holes do de-painting treatment to ensure effective connection. Controller power supply PE and OV equipotential.
9. Cabinet sealing, moisture: humid environment storage cabinet, cabinet desiccant, dehumidifier for effective protection, cabinet outside the outlet, vent sealing and dry environment storage.
10. Temperature and humidity part, do quantitative provisions, reference to drive requirements, set the temperature control at 0 ~ 50 ℃, humidity control at 5% ~ 95%, no flooding, no condensation.
11. The altitude required for the use of the electrical cabinet is less than 1000 meters, more than 1000 meters, the drive needs to be reduced capacity to use.
12. Motor cables and other cables that are prone to strong interference to avoid parallel placement with the transmission of analog/digital signal cables, such as the need for parallel placement, and digital signal cable distance needs to be greater than 20cm, and analog signals/encoder signal cable distance needs to be greater than 50cm.
13 drive grounding resistance should be less than 4Ω, cable diameter greater than 16mm.
