Future Design MCTB 4.3, Руководство пользователя

Страница: 11 / 240

MCTB
11
2 Installation
All MCTB components are pre-loaded with all operating software and firmware before leaving the factory so it
is ready to install when you receive it. Before beginning installation, completely read through this section as
well as the following section (3. Power and Wiring) to gain an understanding of the entire installation process.
Consider the installation carefully. Plan the power, signal and control wiring before installing the MCTB. Also
consider the cabinet space, hardware dimensions, environmental conditions and use good wiring practices to
minimize problems that may occur due to electrical interference.
2.1 Enclosure Guidelines
The MCTB must be installed correctly for reliable operation. The MCTB controller is designed for installation
within a suitable enclosure. Do not install the MCTB outside of an enclosure. Care must be taken when locating
components to ensure that AC power wiring, contactors, starters, relays and other sources of electrical
interference are properly located to minimize their impact on the MCTB control system.
Particular note should be taken to the position of variable speed drives and switching power supplies. Their
input and load cables should be screened and properly grounded to a central equipment grounding point to
prevent radiated emissions from affecting MCTB operation.
2.1.1 Locating the MCTB Touch Screen Interface
It is recommended that the unit be mounted within the front panel of a steel enclosure, through an appropriately
sized opening. Proper enclosure depth is required to ensure that there is adequate spacing between the rear
of the interface and the front of any high voltage devices mounted in the enclosure when the enclosure door is
closed. It is required
that a minimum separation of 2” be maintained, so plan a depth to accommodate at least
4
” (102mm) behind the front of the panel.
WARNING:
•
To avoid potential electric shock and other hazards, all mounting and
wiring for the MCTB must conform to the National Electric Code (NEC)
and other locally applicable codes.
•
Special expertise is required to install, wire, configure and operate the
MCTB controller. Personnel without such expertise should not install,
wire or operate the MCTB.
CAUTION:
•
Prevent metal fragments and pieces of wire from dropping inside the
housing of any MCTB component. If necessary, place a cover over the
components during installation and wiring. Ingress of such fragments
and chips may cause a fire hazard, damage or malfunction of the
device.
•
When handling the MCTB B42 series loop control boards, use proper
ESD (electro-static discharge) handling procedures to prevent damage
to board components.
•
Locate the MCTB and all related control components away from AC
power/motor wiring and sources of direct heat output such as
transformers, heaters or large capacity resistors.