Datalogic SG2 BASE Series Instruction Manual
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Contents
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SG2 BASE Instruction Manual244.1. Notes on connectionsFor the correct functioning of the SG2 safety light curtains, the following precautions regarding theelectrical connections have to be respected: Do not place connection cables in contact with or near high-voltage cables and/or cable undergoinghigh current variations (e.g. motor power supplies, inverters, etc.); Do not connect in the same multi-pole cable the OSSD wires of different light curtains; The TEST/RESET wire must be connected through a N.O. button to the supply voltage of the ESPE.The TEST/RESET button must be located in such a way that the operator can check the protectedarea during any Test and Reset operation. (see section 6 “Functioning mode”). The device is protected internally against overvoltage and overcurrent. The use of other externalcomponents is not recommended.Example: connection with safety relayThe figures show the connection between the safety light curtains and the safety relay of the SE-SR2series functioning in the Automatic Start mode (left side) and Manual Start with monitoring (right side). Do not use varistors, RC circuits or LEDs in parallel at relay inputs or in series at OSSD outputs. The OSSD1 and OSSD2 safety contacts cannot be connected in series or in parallel, but can be usedseparately (Fig.16).If one of these configurations is erroneously used, the device enters into the output failure condition(see section 7 “Diagnostic functions”). |
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