User manual OMRON MS4800E

[. . . ] F04E-EN-02 Safety Light Curtain Type 4 MS4800E OPERATION MANUAL MS4800E Safety Light Curtain Type 4 Installation and Operating Manual March 2010 Omron Europe B. V. Wegalaan 67-69 NL-2132 JD, Hoofddorp Pays-Bas Tel. : +31 (0) 23 568 13 00 Fax: +31 (0) 23 568 13 88 www. industrial. omron. eu iv Notice: OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual. The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. [. . . ] In addition to that, any fixed or monitored blanking programming must be done with at least one (1) clear beam on each flex segment. Example: A MS48000S-EA-014-1320 has 132 beams. In blanking application, 10 consecutive beams have to be free for optical synchronization. The remaining 122 beams can be used for fixed blanking applications (max 8±1 beams). 15 Optical Synchronization Section 5-4 16 SECTION 6 Diagnostic and Test Features 6-1 Individual Beam Indicators (IBI) All MS4800 systems have a visible red LED as an Individual Beam Indicator adjacent to each infrared beam. The IBI will light when the infrared beam fails to meet the conditions necessary for the system to remain in the MACHINE RUN state. When less than 10 consecutive beams are clear, every other IBI will light indicating that the MS4800 is not synchronized. IBIs are not a safety critical component. An IBI failure will not cause an alarm condition and the system will continue to operate. Additionally, error codes are displayed using the IBIs close to the connector endcap. 6-2 External Device Monitoring (EDM) EDM is an important safety function. It monitors the MS4800 system interface to the guarded machine, checks to ensure that the control elements are responding correctly to the light curtain and detects any inconsistency between the two external control devices. This is necessary to detect a malfunction within the interface which prevents a stop signal from reaching the machine controller. The connection for the EDM is made at the receiver. On power-up, the MS4800 system looks for a closed to 0VDC condition. If this is found, it will enter a state consistent with the selected operating mode. When the MS4800 system enables its safety outputs, it monitors the external devices for a closed to open transition. This transition must occur within 300ms or the MS4800 system will then enter an alarm state. Additionally, if the EDM connections are incorrectly wired, the system will enter an alarm state. Note For proper operation of the MS4800 system when EDM is not active, the EDM input must be wired to the MS4800 system 0 VDC line. The EDM function can be activated and deactivated using the selector switches on the receiver unit. 6-3 Machine test signal (MTS) Some applications require that the machine guarding system be tested by the machine controller during a non-hazardous portion of the machine cycle to verify that the guarding system is functioning properly. The MTS option on the transmitter provides this capability. The MTS is provided by placing a normally-closed switch across the MTS and MTS Return lines of the transmitter. When the transmitter recognizes a close-to-open transition on this switch a beam block state will be simulated on the transmitter and the receiver will enter the MACHINE STOP state. [. . . ] To test the MS4800 system, use the correct size test object. Machine identification_____________________________ Date___________ @ Pass @ Fail Visually inspect the machine to ensure that access to @ Pass the danger point is only through the MS4800 detec@ Fail tion zone. If not, additional guarding, including mechanical barriers ma be required. Verify that all additional guarding devices and barriers are installed and operating properly. [. . . ]