NPC30A - AVSL Group
Contents
1. is met MAIN PANEL CONNECTIONS M1 Microphone M2 Microphone earth screen Ensure screened microphone cable is used to connect mic to M1 and M2 adastra avsl com O adastra NPC30A Noise Pollution Control System Item ref 952 801UK User Manual Note On board relay connections J and K can be regarded as an On Off switch i e when unit displays green ON LED contacts are closed when red OFF LED is displayed contacts are open circuit The unit must be powered up and the mic must be connected to ensure steady Green OK LED otherwise J K is open circuit J on board relay normally open when unit is not powered up K on board relay common J K used to switch the 30 amp relay coil contactor coil or other device depending on installation requirements Note Connections A D are low voltage drive outputs only and are connected to corresponding connections on remote light display if fitted A traffic lights 0 volt common B traffic lights red channel C traffic lights yellow channel D traffic lights green channel FA1 fire alarm 24Vdc input from any existing fire alarm system usually nearest bell or siren FA3 fire alarm negative input P1 earth P2 P2A and P3 P3A are 18Vac input output connections from TX1 secondary mains transformer The 18Vac available at these connectors is also used to power low voltage auxiliary panels or devices eg remote relays etc an any group bran2. Initial Power Up On initial power up the timer power indicator will flash and the OK indicator LED will then illuminate Due to certain installation conditions the T1 and T2 indicator LEDs may flash before returning to the OK indication LED This unit is now ready for adjustment Adjustment VR 1 the overall microphone gain should be adjusted accordingly to determine the desired decibel dB level required to trigger the unit Fine Adjustment VR 2 high filter adjustment this should be adjusted if you require more or less sensitivity to high frequencies eg vocals etc VR 3 low filter adjustment this should be adjusted if you require more or less sensitivity to low frequencies eg bass Adjustment Anti clockwise less sensitive Clockwise more sensitive VR 5 timer adjustment this is normally set to 1 1 5 second intervals giving an overall time of approximately 7 10 x 2 seconds Interval steps can be set by observing the flashing power indicator LED once on plus once off 1 clock pulse 5 pulses cut off 5 more pulses to auto reset 10 pulses 1 complete cycle After being triggered and the volume not being reduced the unit will then cut off for the time you have pre set and then it will reset Keyswitch Monitor allows the unit to assess the music but it will not cut off the power if the preset level is met Active allows the unit to monitor the music but will cut off the power if the preset level
3. d RELAY PANEL CONNECTIONS J connects to J on main board already connected K connects to K on main board already connected P2 connects to P2 on main board already connected P3 connects to P3 on main board already connected 2CN1 30 AMP CONNECTOR L 24Vac supply input LIVE N 240Vac supply input NEUTRAL E input EARTH Note It is recommended that the supply to CN1 is taken from a separate 30 amp ELCB RCCD in the on site consumer unit 2CN2 30 AMP OUTPUR CONNECTOR L 240Vac controlled output LIVE N 240Vac controlled output NEUTRAL E output EARTH 2CN3 Live neutral and earth connections to TX1 primary already connected TRAFFIC LIGHT REMOTE DISPLAY 952 804UK A B C D connect to corresponding connectors on main panel 240Vac mains powered displays should be supplied via 5 amp switched spur or similar to Euro connector low voltage connections A B C D still connect to A B C D respectively on main panel Screened Mic Cable 4 core to Remote Indicator 1 CAUTION LIVE PARTS 248 VOLTS A C E Controlled Output OUTPUT 30 AMP MAX 4h a a PIER F0 t zf i FH ean es EE 2 nig H Fate yi fe ma Leite at g 0 adastra BASIC WIRING 30 Amp Unit Lid Eyelet Mains Supply Input Errors and omissions excepted Copyright 2015 AVSL Group Ltd 952 801UK User Manual
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