GB/T 39004-2020 in English
VALIDIndustrial robot electromagnetic compatibility design specification
- Issued on:2020-09-29
- Implemented on:2021-04-01
- File Format:PDF
- Delivery:Via email within 5 business days
$359.00
《GB/T 39004-2020工业机器人电磁兼容设计规范》由TC591（全国机器人标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Core framework of EMC design for industrial robots
According to the GB/T 39004-2020 standard, the electromagnetic compatibility design of industrial robots needs to establish a system-level protection system, which mainly involves three modules:
| Module | Key components | EMC risk level |
|---|---|---|
| Teach pendant | PCB board, display screen, interface | Medium and high frequency radiation sensitivity |
| Control cabinet | Power module, servo drive | Strong conducted interference source |
| Robot body | Motor, encoder | Low-frequency conducted sensitivity |
Technical index requirements for key components
1. Teach pendant EMC index
The standard stipulates that the teach pendant must meet the GB 4824-2019 radiation interference limit. Specific test requirements:
- Electrostatic discharge immunity: air discharge ±8kV (criteria level B)
- RF radiation immunity: 80MHz-1GHz field strength 10V/m (criteria level A)
2. Control cabinet power module index
The switching power supply needs to pass the surge immunity test (±2kV common mode/±1kV differential mode), and the conducted disturbance limit refers to:
| Frequency band | Limit |
|---|---|
| 150kHz-30MHz | GB 4824-2019 Table 2 |
PCB Design Specifications
Layering Strategy Comparison
| Number of Layers | Preferred Solution | EMC Performance Improvement |
|---|---|---|
| 4 Layers | Signal-Ground-Power-Signal | Reduce 50% Radiation |
| 6 layers | Signal-Ground-Signal-Power-Ground-Signal | Reduce crosstalk by 70% |
Key design points
- The clock line needs to be grounded, ≥5mm from the edge of the board
- Decoupling capacitor configuration: 0.1μF (＜20MHz) / 0.01μF (＞20MHz)
- Shielded cable 360° overlap impedance <5mΩ
Implementation suggestions
Phase-based verification strategy:
- Board level: PCB radiation scan (30MHz-1GHz)
- Module level: Control cabinet conducted disturbance test (150kHz-30MHz)
- System level: Whole machine radiated immunity test (80MHz-1GHz)
Note: When the standard requirements conflict, priority is given to ensuring the grounding continuity of the safety extra low voltage (SELV) circuit.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 19400-2003 in English
Industrial robots—Object handling with grasp-type grippers—Vocabulary
2003-11-10 -
GB/T 29824-2013 in English
Industrial robot―User programme instruction
2013-11-12 -
GB/Z 43202.1-2024 in English
Robotics—Application of GB/T 36530—Part 1: Safety-related test methods
2024-08-23 -
GB/T 12642-2013 in English
Industrial robots—Performance criteria and related test methods
2013-11-12 -
GB/T 40013-2021 in English
Service robot—Electrical safety requirements and test methods
2021-04-30 -
GB/T 26153.1-2010 in English
Flexible manufacturing system of off-line programming robots—Part 1:General requirements
2011-01-14 -
GB/T 14283-2008 in English
General specifications of spot-welding robots
2008-07-28 -
GB/T 20721-2022 in English
Automatic guided vehicles—General specifications
2022-04-15 -
GB 34668-2024 in English
Safety technical specification for electrical self-balancing vehicles
2024-07-24 -
GB/T 47231-2026 in English
Performance requirements and test methods of industrial heavy-duty mobile robots
2026-02-27
