LS4600 INSTRUCTION MANUAL. Thank you for choosing another quality product from Amperes Electronics. Speaker Line Surveillance

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1 INSTRUCTION MANUAL LS4600 Speaker Line Surveillance Thank you for choosing another quality product from Amperes Electronics. LS4600 was produced out of extensive research and development effort in which every aspect of line surveillance requirements are studied. It solves the problem faced by many installers using the conventional line monitoring method, by adopting impedance measurement methodology. This shall eliminate the needs to add coupling capacitors to every speakers, rigid cabling rules as well as inaccuracy in detection. Thereby, LS4600 allows branching in cabling works, direct tapping of line to speakers as well as easier setup, without having to trim impedance against a preset reference. LS4600 is built and run by a micro-controller, thus providing a digital platform in setting up your system. User can set various parameters by following the menu displayed in the LCD screen. Among them shall be the high and low limits, buzzer on / off, display backlight, monitoring setup time, auto or manual mode as well as doing manual testing. It shall not be difficult to understand or to install the unit, but it is recommended that a trained personnel is engaged in order to tap the many features available. Before installation, we suggest a thorough read through of the manual is done to avoid any unnecessary damage to your setup. Please keep this manual handy for any future references. VER 3 / 2015

2 Parts Identifications Front view Rear view LCD DISPLAY 2 x 16 digit LCD display with back light setting is used as programming guide as well as measurement indications. The back light can be set to off if required by accessing menu 6 (see programming chart). The back light is set to ON in default. 2. MENU BUTTON Menu switch is used to access main menus. Once pressed momentarily, it shall revert to Menu Setup. Use Next and Prev keys to scroll through other main menus. Once the relevant menu is found, use Enter key to access its following sub menu. To exit sub menus, press Menu key momentararily. 3. BUTTON Used to enter required main menu or its sub menus, confirm values, data or settings. 4. PREV BUTTON Previous key to scroll back to last menu or sub menu. 5. NEXT BUTTON Next key to scroll forward of menus. 6. GREEN NORMAL LEDs The arrays of green LEDs provides the status of the channel which show the normal condition if lit. If both green and red LEDs do not lit for the particular channel, it means that the channel has been bypassed from monitoring. 7. RED FAULT LEDs Once lit, it indicates that the particular channel is at fault ; either open, short or leakage. Refer to the LCD panel for exact condition of fault. PAGE 2

3 Parts Identifications 8. BUZZER LED If fault is detected, a buzzing sound shall be emitted with the LED lit. Buzzer alert can be turned off via programming and this is indicated by this LED V DC POWER SUPPLY PORT The unit requires 24V DC power supply and recommended PSU shall be Amperes PS9400. Only use regulated power supply if other than PS9400 is installed. 10. ZONE TRIGGER OUTPUT PORT When line monitoring is initiated either manually or auto, it shall start in sequence from ch.1 to 6. With each channel under monitoring, a dry contact shall be available at its correspondence zone. This shall provide 24V overriding voltage to volume controllers or local patch panel with overriding relay, thus allowing direct measurement to the speakers. (Refer to Connecting the unit section of the manual). Overriding is required for accurate sensing in which volume controllers set in various position shall have different impedances and such circumstances shall provide false alarm or alert. Recommended practice is that every zone shall have its own 24V overriding circuit back to the rack. If all the overriding circuits are looped, and if the particular zone with volume controller is set to off, the monitoring activity shall cause a burst of audio signal (such as BGM), which lasted for approximately 18 seconds. This shall happen only when a BGM source is presence. If the particular zone is set to OFF (without BGM), the monitoring activity shall not emit audible sound. 11. AMP / ZONE IN - OUT PORTS It is for connections of incoming 100V line signal and output to speakers. Refer to Connecting the Unit in following section. 12. OUTPUT FAULT CONTACT Whenever a fault condition is detected, this port shall provide a dry contact to link to external alerting devices, such as mimic panel, etc. 13. RS485 OUTPUT (OPTIONAL) Event triggered data shall be transmitted with RS485 protocol. This feature is optional and shall be available in future. PAGE 3

4 PUBLIC ADDRESS POWER AMPLIFIER POWER PROTECT CLIP SIGNAL -10 db SIGNAL -40 db PUBLIC ADDRESS POWER AMPLIFIER OVERRIDE POWER PROTECT CLIP SIGNAL -10 db SIGNAL -40 db amperes SPEAKER ZONE SELECT ALL CALL amperes Configuration / Schematic AUDIO SIGNAL INPUTS NOT SHOWN PA 2480 POWER AMPLIFIERS PA V DC VOLTAGE ZS5121 SPEAKER ZONE SELECTOR RACK MOUNT ZONE VOL.CTRL. LS4600 AUDIO SIGNAL 24V DC OVERRIDING ZONE 6 VOLUME CONTROLLERS / PATCH PANEL Zone 1 Speakers Parallel Zone 2 Direct VC Zone 3 VC Parallel Zone 6 The LS4600 detects circuit faults using impedance measurement method. In general, there is no limitation on how the external cabling to speakers or volume controller are run, ie. branching is allow and does not need end line resistors as well as speaker capacitor couplings. LS4600 have been improve all accuracy. It is recommended that periodical manual checking or setup to be made as connections may deteriorate over time and thus affecting overall impedance value. Only 4 wire system is suitable for measurement. 3 wire system may cause undesirable result each time checking is being made due to the presence of volume controllers. PAGE 4

5 Connecting The Unit 24V DC OVERRIDING CONTROL (EP1200A ETC) Loop the 24V DC overriding trigger to the Zone Trig. O/P port +VE +24V add diode repeat FROM ZONE SELECTOR 100V LINE OUTPUT TO SPEAKERS repeat FROM ZONE SELECTOR 100V LINE OUTPUT TO SPEAKERS RS 485 OUTPUT (OPTIONAL) 24V DC +VE POWER -VE Max rating per zone trigger is 3A. Use external relay if required -VE -VE +24V VOLUME CONTROLLERS WITH OVERRIDING RELAY TO MIMIC PANEL / EXTERNAL FAULT INDICATOR ETC ( A DRY CONTACT OUT) It is recommended that separate zone shall have separate overriding circuit. Otherwise, loop all outputs. Disadvantage of looping all outputs : If a particular zone is active (zone on) but the volume controller at a certain area is shut off (eg. zone 1), activation of monitoring from LS4600 of zone 2 shall override the volume controllers at zone 1, thus a burst of audio shall be heard ( such as BGM being currently played). Programming And Setup The last part of the unit installation shall be programming as well as entering required values. Program the unit by following the menus shown in the LCD display panel. Each of the menu and sub menus shall be explained in the following sections. In general, there are 7 main menus as shown below : MAIN MENU 1.0 SETUP 3.0 MEM. RECALL 5.0 BUZZER 7.0 MEMORY 2.0 MANUAL TEST 4.0 AUTO TEST 6.0 LCD LIGHT NOTE : Minumum setup required for the system to run shall be Menu 1.0 and 4.0. If other menus are not set, they shall run according to default parameters. POWER UP Upon powering for the first time, the unit shall display introduction wordings in running mode. The green and red LEDs shall lit in sequence indicating sequence of initialisation. TO SETUP To begin programming, press, hold and release MENU button, and the SETUP menu shall be displayed. Initializing... LS4600 VER: X.XX < denotes PRE denotes NEXT and [] as AMPERES ELEC. S/B LINE SUPERVISORY 1.0 SETUP PAGE 5

6 1.0 Setup Menu There are 2 modes of operation available : Basic and Advance. In Basic setup mode, LS4600 shall detect the circuit for Open and Short only. The timing of detection shall depend on the intervals set in Auto Detection mode, ( Refer to Auto Test section ). Follow the steps below to use this mode. BASIC SETUP PRE to Menu SETUP NEXT to Menu BASIC SETUP Use < or to toggle between Basic and Advance Setup Accept? Accept OK 1.2 BP ON FAULT <ON CH.# * Default <ON Back to Menu 1.0 Press < or to accept the value of status. PRE MENU PRE Accept?/Bypass? 1.2 BP ON FAULT <OFF CH.# NEXT Imp xxxx NEXT Press < or to switch channel number. Bypass? Bypass OK * Imp xxxx Channel bypass mark * Press and PRE or NEXT key for setting up remaining channels or MENU to return to previous menu. BP = Bypass Use PRE or NEXT keys to select the required channel. Imp value shall be shown, otherwise OPEN or SHORT shall appear. Press to proceed to the next setting for the selected channel. A channel with or without value can be bypassed from surveillance or accepted for monitoring. Select PRE to accept for monitoring or NEXT to bypass. In BASIC Mode Hi and Lo function will be disabled, only OPEN and SHORT monitoring available. To enable Hi and Lo function use ADVANCE setup in menu 1.0 (SETUP) The ' * ' symbol will show when the value measured is out of preset range of Hi and Lo limits. Short or Open condition is self explainatory. A fault condition shall have red LED lit and vice versa. PAGE 6

7 1.0 Setup Menu ADVANCE SETUP 1.0 SETUP 1.0 SETUP ADVAN SETUP Imp xxxx Accept? / Bypass Accept Accept OK Bypass Bypass OK On selected set High-limit 1.2 BP ON FAULT <ON CH.# 1.3 H-LIMIT +## Imp xxxx To select Bypass or On upon fault detection * Imp xxxx Channel bypass mark * On selected set Low-limit 1.4 L-LIMIT -## Imp xxxx 1.5 EXIT? Y?/N? Use PRE or NEXT keys to select the required channel. Imp value shall be shown, otherwise OPEN or SHORT shall appear. Press to proceed to the next setting for the selected channel. A channel with or without value can be bypassed from surveillance or accepted for monitoring. Select PRE to accept for monitoring or NEXT to bypass. The preselected values for high limit and low limits are from 00 ohm to 500 ohm, with incremental of 20 Ohms. We recommend 50 % higher or lower values to avoid unnecessary false triggering. Once the required value is selected, press to proceed to the next sub menu. PAGE 7

8 2.0 Manual Test PRE to Menu 1.0 PRE to Menu MANUAL TEST Press NEXT to Menu Hixxxx CH# Imp XXXX < or to select Ch number and check impedance To Sub Menu 2.0 MENU 2.2 EXIT O< < or to select Yes or No To Sub Menu 2.0 YES NO To Sub Menu 2.1 Use this function to test speaker line impedance of each channel. Please note that the value shown are approximated figure. To obtain the actual value, use a dedicated Impedance Measurement meter. 3.0 Mem. Recall 3.0 MEM RECALL O< Press NEXT to Menu CH#=xxxx H=xxxx L=xxxx # Use PRE or NEXT keys to select channel number This menu enable the user to view the values of impedance of selected channels, which had been accepted earlier during setup (Menu 1.0). To clear the memories, use the MEMORY Menu (Menu 7.0) and all previously stored values and settings shall be erased. PAGE 8

9 4.0 Auto Test PRE to Menu AUTO TEST O< Press NEXT to Menu SELECT TIMER O< Test Seq=off # Use < or to select Auto or Manual mode If Off is selected Return to Submenu 4.0 If NO is selected 4.2 AT.TEST ON? O< Y?/N? Return to Submenu 4.0 Menu If a test interval is selected (from 1 min to 24 hours). By default, auto mode is set to off. Use < or key to select time. LS4600 VX.XX[SPEAKER LINE SURVEILLANCE] <<Auto Test xxh:xxm:xxs<<-remaining..<xxx Press < or to select ON or OFF for Auto Test. If Auto Test is ON The test sequence is started and repeated at the preset interval. Remainning time for the next sequence is displayed. This menu must be accessed for first time programming, in which shall determine how the unit shall run, either manually or automatically. If SELECT TIMER mode is selected, testing interval time should be entered, otherwise, the default timer is set to off. Once timer has been entered and auto mode selected, the unit shall immediately start testing sequence and the counter began from then onwards. To access to the main menu again, press Menu key 5.0 Buzzer PRE to Menu BUZZER Press NEXT to Menu KEY BEEP 5.2 FAULT BUZZER Press < or to select ON / OFF for key select. Press < or to select ON / OFF whenever fault is detected. Return to Buzzer Menu Buzzer is available for button pressing and alert / fault signal. This feature can be turned off to fit to ones' preference. For fault alert buzzer, if this is switch on, the Buzzer LED shall not lit when a failure is detected. If the buzzer is switched off, the buzzer LED and the correspondence channel fault LED shall lit. PAGE 9

10 6.0 LCD Back Light This menu provides the option to turn ON or OFF the LCD back light. PRE to Menu LCD BACK LIGHT Press NEXT to Menu LCD LIGHT Press < or to switch ON or OFF Back Light for LCD display. Return to LCD Back Light Menu 7.0 Memory PRE to Menu MEMORY 7.0 MEMORY O< SAVE? Save < Press NEXT to Menu 1.0 < or to reset or save the memory and press Enter Select < or to save / No 7.1 MEMORY SAVE O< Y?/N? 7.0 MEMORY O< RESET? < or to select Return to Memory Menu If earlier settings are to be wiped off, use this memory reset and the system shall return to default. After completing all channel setting, the changed parameters MUST be saved. DC power to the unit can be switched off when system is not in use. Settings shall be retained in the memory. PAGE 10

11 Summary Of Features 6 channel speaker line monitoring and expandable Basic and Advance level of detection setup Detection of faulty cable and speaker in individual zone or circuit Impedance measurement method - no capacitor coupling required and cable branching allowed. Faulty circuit disconnection option Built in impedance meter, range within 10 Ohm to 10 K Ohm LCD display to facilitate system setup, measurement and monitoring Fault alert with LED indicators and switchable buzzer Detection test interval setting from 1 min to 48 hours Short burst test signal, minimizing interruption to PA operation User setting for detection sensitivity for open, short and leakage Aux 24V DC output for volume controller overriding during testing mode Technical Specifications Operating voltage 24V DC via PS9400 PSU Power consumption 3.5W Capacity 6 channel and expandable Processor PIC micro controller with 12 bit ADC Impedance detection range 10 to 10 K Ohm Power measurement range 3 to 1000W 100V line Measurement accuracy +/- 3% within range Pilot tone injection frequency 1 KHz Pilot tone signal output level 5V sine Transmittal detection period 3 seconds per channel Detection interval User preset from 1 min to 48 hrs Sensitivity setting User preset at each channel Indicators - LED Normal, Fault, Buzzer, Auto run Display LCD 2 x 16 characters w back light Audible output signal Continuous buzzer with Off option Dry contact setting 3A DC output in detection mode 24V DC for individual channel Dimensions (WxHxD) 482 x 44 x 180 mm Weight 2.3 kg Note: The above specifications are correct at time of printing but subjected to changes without prior notice due to product improvements. PAGE 11

12 Warranty Conditions Only Amperes Electronics Service Centres are allowed to make warranty repairs : a list of Amperes Electronics Service Centres may be asked for by the purchaser or send directly to Amperes Electronics Sdn Bhd at 70 Jalan Industri PBP 3, Tmn Perindustrian Pusat Bandar Puchong, 47100, Puchong, Selangor, Malaysia or its authorized master distributor, TNT Links Sdn Bhd / MyPA Systems Sdn Bhd. This warranty is not valid if repairs are performed by unauthorized personnel or service centres. This warranty covers only repairs and replacement of defective parts ; cost and risks of transportation as well as removal and installation of the product from the main system are for the account of the purchaser. This warranty shall not extend to the replacement of the unit. This warranty does not cover damages caused by misuse, neglect, accident of the product as well as using the product with power supply voltage other than shown on the product, or any other power supply source / adaptor not recommended by the manufacturer. This warranty does not cover damages caused by fire, earthquakes, floods, lightning and every cause not directly related to the unit. This warranty does not include any indemnity in favor of the purchaser or the dealer for the period out of use of the unit; moreover the warranty does not cover any damages which may be caused to people and things when using the product. This warranty certificate is valid only for the described product, and is not valid if modifications are made on this certificate or on the identification label applied on the product. This warranty covers all the material and manufacturing defects and is valid for a period of 12 months from the date of purchase or for a longer period in countries where this is stated by a national law. In this case, the extension is valid only in the country where the product is purchased. Amperes Electronics Sdn Bhd is not obliged to modify previously manufactured products under warranty if the design changes or improvements are made. Disclaimer Information contained in this manual is subject to change without prior notice and does not represent a commitment on the part of the vendor. AMPERES ELECTRONICS SDN BHD shall not be liable for any loss or damages whatsoever arising from the use of information or any error contained in this manual. It is recommended that all services and repairs on this product be carried out by AMPERES ELECTRONICS SDN BHD or its authorized service agents. AMPERES series must only be used for the purpose they were intended by the manufacturer and in conjunction with this operating manual. AMPERES ELECTRONICS SDN BHD cannot accept any liability whatsoever for any loss or damages caused by service, maintenance or repair by unauthorized personnel, or by use other than that intended by the manufacturer. ISO 9001: 2008 Design & Manufacture of Public Address Equipment and Systems Certificate No / A / 0001 / UK / En AMPERES ELECTRONICS SDN BHD MADE IN MALAYSIA Published : March 2015