Camera cabling guide for structured-light 3D camera

Connection table for camera power supply port and ETH port

The power supply interface for Mech-Eye Industrial 3D Cameras is an M12 4-pin A-coded aviation plug, while the network interface is an M12 8-pin A-coded aviation plug.

Power supply port connection table:

ETH port connection table:

  • When connecting an aviation plug, please pay attention to its direction. After the connection is made, it is recommended to secure the cables with ties.
  • Regarding power supply, it is recommended to use a 24V isolated adapter or a 24V isolated rail power supply.
  • When using long power cables, it is important to ensure that the output voltage is 24V.

Power supply method

There are primarily two ways to power the camera: through an adapter power supply or a rail power supply.

Adapter

The adapter used is GSM90A24-P1M. For this model’s specifications, visit:
https://www.meanwell.com/webapp/product/search.aspx?prod=GSM90A

Important notes for using adapters:

  1. Grounding has already been completed through the three-phase power supply line, so there is no need for additional grounding.
  2. Ensure a stable connection for the camera power interface, and there should be some redundancy at the interface connection point.
  3. For wiring plans, please refer to: Guidelines for mounting camera cables.

Rail power supply

The recommended rail power supply used is NDR-120-24 (excluding India). For this model’s specifications, visit:
https://www.meanwell.com/webapp/product/search.aspx?prod=NDR-120
For india, the recommended one is Meanwell EDR-120-24.

Important notes for using rail power supplies:

  1. The DC cable connections of the rail power supply should be made according to the labels; the cable core colors may vary between different batches.
  2. Connect the AC wires L, N, and PE to the three terminals of the rail power supply and ensure the grounding is effective (see the red frame in the left image below).
  3. Special note: Cables longer than 20 meters may require a 2V boost (refer to the voltage adjustment in the right image below).
    imageimageimage
  4. For wiring plans, please refer to: Guidelines for mounting camera cables.

Requirements for camera power supply input and output (to be added later)

NDR-120-24 (preferred) DRL-24V120W1EN
Input Ratings / Characteristics Nominal Input Voltage 100 – 240 V AC 90 – 264 V AC 100 –240 V AC
Nominal Input Frequency 47 – 63 Hz 47 – 63 Hz 47 – 63 Hz
Input Current > 2 A / 100 V AC, 0.8 A / 240 V AC 2.25 A / 115 V AC
1.3 A / 230 V AC
2.1 A / 115V AC
1.3 A / 230 V AC
Max Inrush Current on initiation: < 60 A / 100 A C, 120 A / 240 V AC 20 A / 115 V AC
35 A / 230 V AC
35 A / 230 V AC
Leakage Current < 1 mA / 240 V AC < 1 mA / 240 V AC < 0.5 mA / 240 V AC
Overvoltage 105% – 135% of rated output voltage
Protection mode: Cut off output voltage and restart for recovery
29 – 33 V < 17.4 V, SELV output, lock mode
< 33.6 V, SELV output, lock mode
< 64.8 V, SELV output, lock mode
Output Ratings / Characteristics Nominal Output Voltage 24 V ± 1 V 24 V 24 V DC
Output Current > 3.75 A 5 A 5.0 A
Output Power > 90 W 120 W 120 W
EMC Conducted emission Class B Class B Class B
Radiated emission Class B Class B Class B
Harmonic current Class A Class A Class A
Voltage flicker Pass Pass Pass
ESD Level 4, 15 KV air;
Level 4, 8 KV contact
Level 4, 15 KV air;
Level 4, 8 KV contact
Level 4, 15 KV air;
Level 4, 8 KV contact
RF field susceptibility Level 2, 3 V/m Level 2, 3 V/m Level 2, 3 V/m
EFT bursts Level 3,
2 KV / 5 KHZ / 100 KHZ
Level 3,
2 KV / 5 KHZ / 100 KHZ
Level 3,
2 KV / 5 KHZ / 100 KHZ
Surge susceptibility Level 3, 1 KV / Line-Line, 2 KV / Line-FG Level 3, 1 KV / Line-Line, 2 KV / Line-FG Level 3, 1 KV / Line-Line, 2 KV / Line-FG
Conducted susceptibility Level 3, 10 V/m Level 3, 10 V/m Level 3, 10 V/m
Magnetic field immunity Level 2, 3 A/m Level 2, 3 A/m Level 2, 3 A/m
Voltage dips, interruption > 95% dip 0.5 periods, 30% dip 25 periods, > 95% interruptions 250 periods > 95% dip 0.5 periods,
30% dip 25 periods,
> 95% interruptions 250 periods
> 95% dip 0.5 periods,
30% dip 25 periods,
> 95% interruptions 250 periods

Ethernet connection method

Industrial switches or routers

  • It is essential to utilize industrial-grade switches or routers equipped with grounding terminals while ensuring proper grounding procedures are in place.
  • When grounding the switch, use internal copper cables with a minimum diameter of 4 square millimeters, which are typically colored yellow-green.
  • In cases where the robot’s Ethernet cable is also connected to the switch/router, it is advisable to avoid grounding the shielding layer of the robot’s Ethernet cable.

An industrial switch with grounding terminal: TP-LINK TL-SG2008

Directly connecting camera Ethernet cable to IPC

Note: In the right image above, the red circle on the left is a housing grounding point, and on the right is a shielded grounding device.

Features of power supply cable and Ethernet cable

Power supply cable Name Purpose Feature
External cables (standard rail power supply solution) M12 4-core drag chain power cable (with magnetic ring, without line card) For rail power supply
Worldwide compatible
Drag chain cable:
dragging cycles ≥ 8 million times;
torsion cycles ≥ 3 million times (180°).
The shielded layer is grounded and M12 plug pins are made of environmentally friendly 3u gold-plated brass.
External cables (adapter) Standard drag chain; 220V AC power cable For rail power supply
Worldwide compatible
Drag chain cable:
dragging cycles ≥ 8 million times;
torsion cycles ≥ 3 million times (180°)
Standard three-pin male and female connectors.
Ethernet cable Name Purpose Feature
External cables (standard network cable) M12 to RJ45 drag chain network cable For rail power supply
Worldwide compatible
Drag chain cable:
dragging cycles ≥ 8 million times;
torsion cycles ≥ 3 million times (180°)
The shielded layer is grounded; RJ45 head must have a shielding layer and RJ45 inner core is 3u gold-plated.