Banner EZ-SCREEN LP Instruction Manual

Contents

Banner EZ-SCREEN LP Instruction Manual Manual pdf 5 page image

OverviewEZ-SCREEN LPInstruction Manual Overview1.4 Operating FeaturesThe Banner EZ-SCREEN LP models described by this manualfeature several standard selectable functions:• Reduced Resolution (Floating Blanking),• Trip or Latch Output,• External Device Monitoring (EDM),• Auxiliary Output — OSSD Follow or Fault,• Scan Code setting,• Fixed Blanking (including Remote Teach),• Emitter Test and Fault functions,• Inverted Display, and• Cascading (available on SLPC.. models).These functions are configured via DIP switches (behind theaccess door on the front of each sensor) and the sensor wiringconfiguration; see Sections 3 and 4.2 for more information.The sensing resolution is determined by the emitter and receivermodel. See Section 2 for a list of model numbers.1.4.1 Selectable Trip/Latch OutputThe setting for Trip or Latch Output determines whether theSystem will enter RUN mode automatically after power-up, or ifit will require a manual reset first (see Sections 1.4.8 and 4.2). Ifthe System is set for Trip Output, other measures must be takento prevent a pass-through hazard; see Section 3.1.2 and thewarning below for more information.If Trip Output is selected, the OSSD outputs will turn ON afterpower is applied and the receiver passes its internal self-test/synchronization and recognizes that all beams are clear. Theywill also automatically reset after all beams are cleared. If LatchOutput is selected, the EZ-SCREEN LP requires a manual resetfor the OSSD outputs to turn ON, whenever power is applied(and all beams are clear), or following a blocked beam (seeSection 4.5).1.4.2 Emitter Hookup OptionsAn EZ-SCREEN LP emitter can be connected either to itsown power supply or to the receiver cable, color-for-color (seeFigures 3-19 and 3-20). The color-for-color hookup allowsthe emitter and receiver positions to be interchanged withoutrewiring. If the color-for-color hookup is used, however, theemitter Test function is not available.1.4.3 External Device Monitoring (EDM)This feature allows the EZ-SCREEN LP to monitor the statusof external devices, such as MPCEs. The choices are 1- or2-channel monitoring, or no monitoring. EDM is used when theEZ-SCREEN LP’s OSSD outputs directly control the MPCEsor other external devices; see Sections 3.5.3 and 4.2 for moreinformation.Auxiliary (Aux.) Output; OSSD Follow/FaultAn aux. output function is available when the receiver isconfigured for 1-channel EDM. This current sourcing (PNP)solid-state output (250 mA max.) is used for control functionsthat are not safety-related; a typical use is to signal the stateof the OSSDs to a programmable logic controller (PLC). Theaux. output either follows the state of the OSSDs or providesa fault signal (lockout = ON). DIP switch configuration and pin2 (orange/black) connection configure this feature; see Section3.5.5 and Figure 3-26. See Section 4.2 for information on theemitter Fault function.1.4.4 Remote Test InputEZ-SCREEN LP emitters provide a Test function, selectableby DIP switch. An external switch, typically a normally opencontact, held closed, is connected between the emitter and24V dc (see Section 3.5.4). Opening the switch “turns off” theemitter, simulating an interruption of one or more light beams.This function may be useful for EZ-SCREEN LP setup and toverify machine control circuit operation.NOTE: The emitter Test function can not be used in a color-for-color (“swapable”) hookup (see Figure 3-22).1.4.5 Scan Code ConfigurationThe emitter and receiver may be configured to one of two ScanCode positions (1 or 2); a receiver will recognize beams onlyfrom an emitter with the same setting. This helps minimize theeffects of crosstalk between multiple emitter/receiver pairs, andallows multiple pairs to operate in close proximity in certainsituations. See Sections 3.1.5 and 3.1.8 for proper mountingconfigurations. The Scan Code is set via DIP switch on eachsensor; see Section 4.2 for more information. Both the emitterand its corresponding receiver must have the same setting.WARNING . . . Use of Trip/Latch OutputApplication of power to the EZ-SCREEN LP components, theclearing of the defined area, or the reset of a Latch conditionMUST NOT initiate dangerous machine motion. Machine controlcircuitry must be designed so that one or more initiation devicesmust be engaged (i.e., a conscious act) to start the machine – inaddition to the EZ-SCREEN LP going into RUN mode. Failure tofollow these instructions could result in serious bodily injuryor death.Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com