SICK M4000 Advanced User Manual

Chapter 6 Operating Instructions
M4000 Adv., Adv. A/P, Area
50 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010797/YT72/2016-02-19
Subject to change without notice
Configurable muting functions
6.2 Sensor test

Sensor test is only possible with testable optical proximity switches and only in conjunc-
tion with the UE403 and is only performed when the sensor test function has been
configured.
 You can usefully increase safety with testable and non-testable sensors by using the
configurable functions (e.g. time monitors, direction detection, sequence monitoring).
To ensure that a sensor is connected and functioning, the system sends a short test signal
(LOW signal) to the sensor when the muting sensor is activated and waits for its reply
(HIGH signal on the output). The test pulse lasts 30 ms and does not affect the muting
function.
Device symbol M4000 Advanced (receiver) or M4000 Advanced (A/P), context menu
Open device window, parameter node Sensor configuration.
6.2.1 Testable sensors
Testable sensors provide a continuous check on their correct function.
Testable sensors must meet the following technical requirements:
 Tests must be possible in the activated state (when material activates the sensor).
 In the activated state the LOW output signal must be output.
Testable sensors output Status
LOW Activated, material detected
HIGH Deactivated, no material detected
6.2.2 Non-testable sensors
All sensors that do not comply with the technical requirements for testable sensors are
considered non-testable sensors. On non-testable sensors, the HIGH output signal is
always output in the activated state.
Non-testable sensors output Status
HIGH Activated, material detected
LOW Deactivated, no material detected
Notes

Tab.
20
:
Output signals of
testable sensors
Tab.
21
:
Output signals of
non-testable sensors

SICK M4000 Advanced Specifications

General

Type	Multiple light beam safety device
Enclosure rating	IP65
Supply voltage	24 V DC
Safety integrity level	SIL3
Performance level	PL e
Protection Rating	IP65
Operating Voltage	24 V DC
Number of beams	2 to 4 beams
Resolution	70 mm
Ambient operating temperature	-25 °C ... +55 °C
Angular Resolution	Not applicable
Operating Temperature	-25 °C ... +55 °C