Mounting; Additional Cabinet Entries; Ground Connections - Toshiba JK 400 Series Instruction Manual

Basic Installation and Operation Guide

Mounting

Each shipping section must be leveled and firmly secured to its
supporting foundation. Steel shims may be used for final leveling (Fig.
6), if necessary. When three or more shipping sections are to be
arranged in one continuous line-up, the center shipping section should
normally be located first.
Follow the equipment outline drawings to determine the location of the
mounting bolt holes and any conduit locations.
Various methods may be used to anchor the enclosure to the foundation,
including expandable inserts or "J" bolts embedded in concrete. The
recommended size for anchor bolts is 1/2" (Fig. 7).
For heavy equipment, enclosure must be
WARNING
securely anchored to prevent tipping over.

Additional Cabinet Entries

If conduit entry locations are required in areas other than the removable
plates, cover the electrical assemblies to prevent metal filings from
becoming lodged in areas which may cause a reduction in the high
voltage clearances or a short circuit. After the work is completed,
thoroughly clean the area and inspect the unit for foreign material.

Ground Connections

The controller line-up must be grounded in accordance with the requirements of the National Electrical Code. Proper
equipment grounding must be established before making any incoming power connection. If a main ground bus
Fig. 8a Horizontal
Ground Bus
TOSHIBA
(Fig. 8a) is furnished, make the ground
connection to this bus. If there is no ground
bus, the sections which
separately should be connected to ensure a
continuous grounding path.
Each section contains a vertical ground bus
(Fig. 8b) extending from the main ground bus
or ground pad to
compartment.
JK 400 Series Fixed Controllers
Fig. 6 Leveling Using Shims
Fig. 7 Securely Anchor the Controller
are shipped
each controller
Fig. 8b Vertical Ground Bus
in Controller Compartment
5