SAFETY LIGHT SCREENS
MICRO-SCREEN
® Systems
MICRO-SCREEN
®
Metal Box Controller with Muting Specifications
System Power Requirements 115V ac (50/60Hz) ± 15% @ 500 mA (50 VA),230V ac (50/60Hz) ± 15% @ 250 mA (50 VA), or
24V dc ±15%, 10% max. ripple, @ 2.5 A (60 W)
SAFETYLIGHT SCREENS Industrial fuse Rating (F2)115V ac: 1.0 A ac @ 250V ac (supplied) 230V ac: 500 mA @ 250V ac +24V dc: Internal resettable Response TimeLight Screen: Less than 48 milliseconds E-Stop: Less than 15 milliseconds
EZ-SCREEN ® Status LED IndicatorsLight Screen Indicators (left column of LEDs): Solid LED Flashing LED
Red BLOCKED/LATCHED LOCKOUT Green CLEAR BLANKING ON
PICO-GUARD ™ Yellow OVERRIDE LOCKOUT RESET Double Flash = Waiting for Single Flash = ALIGNMENT. Flash rate in creas es with the number of sensing beams “made”, solid yellow when aligned and defined area is clear Green OUTPUT ON (Not Applicable) (FSD1 & FSD2 closed)
MICRO-SCREEN ® System Indicators (right column of LEDs):
Solid LED Flashing LED
Red Yellow RESET Double Flash = Waiting for System Key Reset at Power-up (System) Single Flash = Waiting for System Key Reset at latched condition (manual reset of system after blockage has been removed)
MINI-SCREEN ® EZ-SCREEN ® TYPE 2 Diagnostic DisplaysLight Screen Diagnostic Display (left window) is a two-digit numeric display that indicates the cause of lockout conditions and total number of beams blocked. E-Stop Switch Input The
Emergency stop switch must offer two normally closed contacts and be capable of switching 50 mA @ 30V dc. Total resistance, including wiring and all switches, must not exceed 30 for proper operation. Functional stop category 0 per NFPA 79 and EN 418, Safety Category 4 per EN 954-1. Simultaneity requirement less than 100 milliseconds. Light Screen Test Input System Diagnostic Display (right window) Terminals must be closed for a minimum of 0.05 seconds in order to guarantee a test. The switching device must be capable of switching 15-50V dc at 20-100 mA. is a two-digit numeric display that indicates the cause of lockout conditions and the amount of time, in seconds, remaining for the backdoor timer. Controls and Adjustments Light Screen and System Reset Inputs • Light Screen Key Reset after power-up and light screen lockouts•
Selection switches to enable floating blanking
• Program switches to enable fixed blanking (USCC-2.. only)
• Light Screen and System Auto Power-up selection switches
• System Key Reset after power-up, system lockouts, and latched conditions
• Selection switches for Monitored or Non-Monitored Muting indicator
• Selection switches for One-Way or Two-Way (directional/non-directional) Muting
• Selection switches for One-Channel or Two-Channel Monitoring (
EDM)
• Selection switches for Backdoor Timer settings and Mute-on-Power-Up Terminals must be closed for a minimum of 0.5 seconds in order to guarantee a reset. The switching device must be capable of switching 15-50V dc at 20-100 mA. External Device Monitoring(EDM) Input(s) Two pairs of terminals are provided to monitor the state of external devices that are being controlled by the FSD outputs. The device must be capable of switching 15-50V dc at 20-100 mA. Mute Enable
Input terminals must be closed in order to start a mute; opening this input after mute has begun has no effect. The switching device must be capable of switching 15-50V dc at 20-100mA. Override Inputs Muting Device Input The two-channel inputs must be closed within 3 seconds of each other (simultaneity requirement) and held closed during the 10-second Override. To initiate a subsequent Override, open both channels, wait 3 seconds, and then re-close both channels (within 3 seconds). The switching devices must be capable of switching 15-50V dc at 20-100 mA. The muting devices work in pairs (M1 and M2, M3 and M4) and are required to be “closed” within 3 seconds of each other (simultaneity requirement) to initiate a mute (assuming all other conditions are met). Each muting device must be capable of switching 15-50V dc at 20-100 mA. Light Screen and System Aux. Monitor Relay Outputs
Reed relay; 125V ac/dc max at 500 mA max. (10 VA maximum, resistive load)
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