schmersal SLC 210 Mounting And Wiring Instructions

PHOTOELECTRIC SAFETY BARRIER SLC 210 / SLG 210 MOUNTING AND WIRING INSTRUCTIONS TABLE OF CONTENTS INTRODUCTION........................................................................................................................ 2 OPERATION.................................................................................................... ...

2 � This symbol indicates a very important warning concerning the safety of persons. Its non-observance can cause a very serious risk for the exposed personnel. INTRODUCTION The SLC 210 / SLG 210 photoelectric barrier is an optoelectronic safety system. It belongs to the family of Type 2 electrosensitive devices according to EN 954-1. Th ...

3 OPERATION If the protected area is clear, the two outputs on the Receiver are active. Each time that an object bigger than or equal in size to the resolution of the system intercepts the optical path of one or more beams, the Receiver deactivates the outputs. � The resolution is the minimum dimensions that an object must have to interce ...

4 INSTALLATION Before installing the SLC 210 / SLG 210 safety system, make sure that: � The safety system is only used as a stopping device and not as a machine control device. � The machine control can be actuated electrically. � All dangerous machine movements can be interrupted immediately. In particular, the machine stopping time ...

5 The recommended Cf factors are shown in the table below: ENVIRONMENTAL CONDITION CORRECTION FACTOR Cf Fog 0.25 Steam 0.50 Dust 0.50 Dense fumes 0.25 � If the device is installed in places that are subject to sudden changes in temperature, the appropriate precautions must be taken in order to prevent the formation of condensation on the ...

6 SAFETY DISTANCE CALCULATION The barrier must be installed at a distance that is greater than or equal to the minimum safety distance S, so that a dangerous point can only be reached after all hazardous machine movements have stopped (Figure 3). According to European standard EN999, the minimum safety distance S must be calculated using ...

7 VERTICAL POSITION OF THE BARRIER 20 mm resolution models � These models are suitable for the protection of fingers. S = K (t1 + t2+ t3) + C and S > 100 mm 40 mm resolution models � These models are suitable for the protection of hands. The minimum safety distance S is calculated according to the following formula: S = K (t1 + t2+ t3) ...

8 Multibeam Models � These models are suitable for the protection of the entire body and must not be used to protect arms or legs. The minimum safety distance S is calculated according to the following formula: S = K (t1 + t2+ t3) + C K = 1600 mm/sec C = 850 mm � The recommended height H from the base (G) must be the following: Figure ...

9 ELECTRICAL CONNECTIONS WARNINGS Before making the electrical connections, make sure that the supply voltage complies with the one specified in the technical data sheet. � Emitter and Receiver units must be supplied with PELV type 24 VDC ± 20% power supply (e.g. by means of an insulating transformer according to EN 60724). The external ...

10 Connector pins Figure 8 EMITTER NUMBER NAME MEANING 1 24 VDC Power supply (positive) 2 TEST - Operation without TEST (+24 VDC) - TEST control (Transition +24 VDC -> 0 VDC or open circuit) 3 0 VDC Power supply (negative) 4 N.C. N.C. 5 PE Ground connection Table 1 � If the TEST function is not required by the application, connect p ...