SICK LMS5 Series User Manual

Electrical installation
74 © SICK AG · Germany · All rights reserved · Subject to change without notice 8013796/ZM63/2017-05-09
Operating Instructions
LMS5xx Laser Measurement Sensors
Chapter 6
6.4 Preparing the electrical installation
6.4.1 SELV Supply voltage
For commissioning and operating the LMS5xx, the following are required:
 LMS5xx: SELV Supply voltage 19.2 to 28.8 V DC as per IEC 60364441
The LMS5xx draws the following power:
 LMS5xx: power consumption without output load: typical 22 W, maximum 25 W
 LMS5xx: power consumption with output load: typical 46 W, maximum 50 W
 LMS511/LMS531/LMS581: additional power consumption of heating: typical 55 W,
maximum 65 W
Power supply unit
Risk of electrical shock!
The output circuit of the power supply must be safely electrically isolated from the input
circuit. This feature is normally provided by a safety transformer in accordance with IEC 742
(VDE 0551).
 Only use a safety transformer to generate the power supply voltage.
6.4.2 Wire cross-sections
 Wire all connections with copper cables!
 Use the following wire cross-sections:
 For the LMS500 the outside diameter of the common cable must be a maximum of
9 mm due to the cable entry.
 All communication cables must be twisted and shielded.
6.4.3 Length of the spare cable on the system connector
Recommendation Perform a suitable length of the spare cable for the incomming cables on the system
connector. The spare cable enables you to change the LMS5xx with ease if necessary.
The length of the spare cable should be such that the system connector cannot
inadvertently be plugged into a neighboring LMS5xx! In this way you avoid the inadvertent
connection of the system connector to a neighboring LMS5xx and operation of an LMS5xx
with an incorrect configuration. From experience 200 to 300 mm spare cable at the LMS5xx
have proven to be adequat.
Connection of Cross-section
Supply voltage At least 0.25 mm
2
(approx. 24 AWG), if local power supply in the
immediate vicinity
At least 1.0 mm
2
(approx. 18 AWG) at maximum length of 20 m, if the
connection is made to an existing 24 V DC supply
Switching outputs Minimum 0.25 mm
2
(approx. 24 AWG), maximum cable length 50 m
with 0.5 mm
2
(approx. 22 AWG)
Data interfaces Minimum 0.25mm
2
(approx. 24 AWG)
Tab. 36: Required wire cross-sections

SICK LMS5 Series Specifications

General

Brand	SICK
Model	LMS5 Series
Category	Accessories
Language	English