Areva KITZ 101, User Manual

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Section 1. INTRODUCTION
The K-Bus communication system was developed to allow connection of remote
K Range units (slaves) to a central point of access (a master control unit eg. a PC
and a KITZ unit), thus allowing remote control and monitoring functions to be
performed using an appropriate communication language. The system was
initially developed for use in the electrical supply industry at distribution voltage
levels, but can equally be applied to other voltage levels or indeed to other
systems which would benefit from such a communication system.
This document details the KITZ interface unit used in conjunction with
AREVA T&D K Range protection relays. It describes the operation and features of
the unit in sufficient detail to allow users to interface this unit to other devices
(PCs or MODEMS).
This guide should be used in conjunction with the service manual of the
equipment with which the KITZ is to be interfaced.
The unit allows conversion between the K-Bus data format and IEC-870 - 5 FT
1.2. data format. This enables (for example) a PC based master station to
communicate with K Range units (relays).
Section 2. HANDLING AND INSTALLATION
2.1 General considerations
2.1.1 Receipt of KITZ units
Although the KITZ interface unit is of a generally robust construction, the unit
requires careful treatment prior to use on site. Upon receipt, the unit should be
examined immediately, to ensure no damage has been sustained in transit.
If damage has been sustained during transit, a claim should be made to the
transport contractor, and an AREVA T&D representative should be promptly
notified.
2.2. Electrostatic discharge (ESD)
The KITZ unit uses components that are sensitive to electrostatic discharges.
The electronic circuits are well protected by the metal case and the internal
components should not be exposed by removal of the top or front of the case.
There are no user setting adjustments within the unit.
A person’s normal movements can easily generate electrostatic potentials of
several thousand volts. Discharge of these voltages into semiconductor devices
when handling electronic circuits can cause serious damage, which often may
not be immediately apparent but the reliability of the circuit will have been
reduced.
When transporting the unit, care should be taken so that the RS232 port is not
subjected to ESD. Touching the case will ensure you are at the same electrostatic
potential as the unit.