SICK TR4 User Manual

Chapter 8 Operating Instructions
TR4
88 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8014467/YTD7/2016-03-30
Subject to change without notice
Fault diagnosis
en
8 Fault diagnosis
This chapter describes how to identify and remedy errors and malfunc-
tions during the operation of the TR4 safety switch.
8.1 In the event of faults or errors
Cease operation if the cause of the malfunction has not been clearly
identified!
= Stop the machine if you cannot clearly identify or allocate the error
and if you cannot safely rectify the malfunction.
= Do not attempt to repair the TR4 safety switch.
= Replace faulty devices prior to placing the machine back in opera-
tion.
Behavior in case of recoverable errors:
= In the case that recoverable errors occur (see Tab. 5 in section 8.3
“Error displays of the Status/Diag LED” on page 89, LED ∏ Red
(1 Hz)), check the OSSDs Out A and Out B for short-circuits to 0 V,
24 V DC or to each other and rectify this error without delay.
= Check the cabling for damage, i.e. whether the two-channel func-
tionality is still present.
8.2 SICK support
If you cannot rectify an error with the help of the information provided
in this chapter, please contact your local SICK representative.
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WARNING
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WARNING

SICK TR4 Specifications

General

Number of Safe Outputs	2
Output Type	PNP
Protection Rating	IP67
Type	Safety Switch
Housing Material	Plastic
Supply Voltage	24V DC
Connection Type	Cable
Operating Voltage	24 V DC
Operating Temperature	-25 °C ... +70 °C
Actuator Type	Separate actuator (TR4 Direct, TR4 Standard, TR4 Extended)