Danfoss LA70, LA70M User guide
Technical Information
LA70 and LA70M Range Limiters
TM70 Radio Remote Controls
www.danfoss.com
Technical Information
LA70 and LA70M Range Limiters TM70 Radio Remote Controls
Revision history Table of revisions
Date Changed Rev
August 2019 Converted to ET Danfoss. 0101
2 | © Danfoss | August 2019 BC310649241051en-000101
Technical Information
LA70 and LA70M Range Limiters TM70 Radio Remote Controls
Contents
Introduction
System Description..........................................................................................................................................................................4
Application Example..................................................................................................................................................................4
Infrared Sensor.................................................................................................................................................................................. 5
LA70 Infrared Transmitter
LA70 Installation............................................................................................................................................................................... 6
LA70 Technical Data........................................................................................................................................................................7
LA70M Infrared Transmitter
LA70M Technical Specifications..................................................................................................................................................8
PC Enclosure Specifications..........................................................................................................................................................9
Covered Working Zone.................................................................................................................................................................. 9
Jumper’s Configuration............................................................................................................................................................... 10
LA70M Installation.........................................................................................................................................................................10
©
Danfoss | August 2019 BC310649241051en-000101 | 3
Technical Information
LA70 and LA70M Range Limiters TM70 Radio Remote Controls
Introduction
System Description
TM70 radio remote control systems can be equipped with a range limitation option for applications
where the operator has to be in a particular place for safety. One example can be on overhead cranes.
When away from the working area, it deactivates the movement controls while maintaining the radio
communication.
The system consists of one or more Infrared transmitters LA70, installed either in fixed positions or on the
controlled machine, oriented in such a way that it covers the targeted working zone. In this case the
remote control transmitter is equipped with a sensor which receives the information coming from the
LA70 transmitter. This information is analyzed by the transmitter and determines if the operator has left
the working area. Consequently, outputs are deactivated.
Application Example
4 | © Danfoss | August 2019 BC310649241051en-000101
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