Dexing NDS3244S Руководство пользователя - Страница 8

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Item
Machine Hall Space
Machine Hall Floor
Environment
Temperature
Relative Temperature
Pressure
Door & Window
Wall
Fire Protection
Power
2.2.3 Grounding Requirement
 All function modules' good grounding designs are the basis of reliability and stability of
devices. Also, they are the most important guarantee of lightning arresting and interference
rejection. Therefore, the system must follow this rule.
 Coaxial cable's outer conductor and isolation layer should keep proper electric conducting
with the metal housing of device.
 Grounding conductor must adopt copper conductor in order to reduce high frequency
impedance, and the grounding wire must be as thick and short as possible.
 Users should make sure the 2 ends of grounding wire well electric conducted and be
antirust.
 It is prohibited to use any other device as part of grounding electric circuit
 The area of the conduction between grounding wire and device's frame should be no less
2
than 25mm
.
NDS3244S Multi-Channel Encoder User Manual
When user installs machine frame array in one machine hall, the
distance between 2 rows of machine frames should be 1.2~1.5m
and the distance against wall should be no less than 0.8m.
Electric Isolation, Dust Free
Volume
resistivity
7
10
，Grounding current limiting resistance: 1M
1X10
~1X10
(Floor bearing should be greater than 450Kg/㎡)
5~40℃(sustainable )，0~45℃(short time)，
installing air-conditioning is recommended
20%~80% sustainable 10%~90% short time
86~105KPa
Installing rubber strip for sealing door-gaps and dual level
glasses for window
It can be covered with wallpaper, or brightness less paint.
Fire alarm system and extinguisher
Requiring device power, air-conditioning power and lighting
power are independent to each other. Device power requires AC
power 220V 50Hz. Please carefully check before running.
6
Requirement
of
ground
anti-static
material: