IVC Displays NP-612S, User Manual

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11
FUSE Replacement:
The fuse use on MT608 is:
BUSSMANN
Fast Acting, Glass Tube
Rating: 250VAC, 1A
Size: 5x20mm
Warning:
1. Make sure the power off before
replace the fuse.
2. Do not replace the fuse with a
different rating fuse.
2.2.2 Grounding Requirements
Chassis ground must be used. DC ground is not directly coupled to Earth ground
internally. It is preferable not to ground DC negative return to chassis ground as poor site
earths can introduce noise into a system, but if necessary an earth connection should be made,
from the power supply return point to the central star earth point. Ground conductors should be
as short and as large in size as possible. The conductors must always be large enough to carry
the maximum short circuit current of the path being considered. Ground conductors should be
connected to a tree from a central star earth ground point. This ensures that no ground
conductor carries current from any other branch.
2.2.3 CE Requirements
To make an NP-612S comply with EMC directives, and to reduce susceptibility to electrical
interference, a separate #14 AWG ground wire should be taken to the chassis ground terminal
of the power connector. This ground connection should be run directly to the central star earth
connection point (as recommended in most Installation Instructions).
2.2.4 Safety Guidelines
This section presents recommended installation practices, and procedures. Since no two
applications are identical, these recommendations should be considered as guidelines.
Hardware Considerations WARNING!
The system designer should be aware that devices in Controller systems could fail and thereby
create an unsafe condition. Furthermore, electrical interference in an operator interface, such