Introduction
© 2009 Hirschmann Automation and Control GmbH · Branch Office Ettlingen · eMail: [email protected] · www.hirschmann.com
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24 183 19 1012e (Generic) / 2009-02-26 / Rev. 01 / rk.
1. GENERAL
INFORMATION
This manual describes the functions and operation of the
iVISOR
mentor QVGA
load moment
indicator (LMI).
The purpose of the load moment indicator (below called the LMI) is to provide key information to the
operator of the loader which is needed for the operation of the loader within the operating ranges
specified by the manufacturer. The LMI provides the operator with information about the angle and
height of the boom, working radius, rated load and the actual load.
The
iVISOR
mentor QVGA
load moment indicator comprises a central microprocessor unit with an
integrated display and operating console together with various sensors to record measured values.
The system components are connected via CAN bus.
The system works on the principle of a target / actual comparison. The actual value, resulting from the
pressure and angle measurement, is compared with the target values stored in the central unit’s
memory and analysed by the microprocessor.
If the crane nears its safe load limit, the system will warn the crane operator by means of both
acoustic and optical signals. In addition, as soon as the crane reaches an unauthorized operating
status, all crane movements will be switched off that would increase the load moment on the crane.
The manufacturer reserves the right to modify the contents of this manual without notice. Hirschmann offers no guarantee
whatsoever for this material, including guarantees with reference to commercial availability and suitability for particular
applications. Hirschmann shall not be liable for errors contained herein or for identical or consequential damages in connec-
tion with the furnishing, performance, or use of this manual. This manual is protected by copyright. All rights reserved. The
manual may not be copied, reproduced or translated into another language, neither whole nor in part, without advance
written authorization from Hirschmann..
