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  5. Operation Manual

Lab.gruppen PLM 12K44 Operation Manual

Other manuals for PLM 12K44: Quick Start Manual, Operation Manual
Manual is about: PLM+ SERIES Powered Loudspeaker Management System

Summary of PLM 12K44

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    Plm+ series powered loudspeaker management™ system operation manual plm 20k44 plm 12k44 incorporating technologies from.

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    1. Important safety instructions 2 plm+ series operation manual rev 1.0.0 1. Important safety instructions before using the device, be sure to carefully read the safety instructions. Keep this document with the device at all times. 1. Read these instructions. 2. Keep these instructions 3. Heed all w...

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    1. Important safety instructions plm+ series operation manual rev 1.0.0 3 to completely disconnect this equipment from the ac mains, disconnect the power supply cord plug from the ac receptacle. The mains plug of the power supply cord shall remain readily operable. Français: pour démonter complèteme...

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    Table of contents 4 plm+ series operation manual rev 1.0.0 table of contents 1. Important safety instructions 2 1.1. Approvals 2 1.2. Warnings 2 2. Introduction 6 2.1. Welcome 6 2.2. Main features 6 2.3. Additional documentation 8 3. Installation 8 3.1. Unpacking 8 3.2. Mounting 8 3.3. Cooling 10 3....

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    Table of contents plm+ series operation manual rev 1.0.0 5 7.5. Meter button 31 7.6. Menu button 31 7.7. Exit button 31 7.8. Dynamic buttons, controls and leds 32 7.9. Warning and fault indications 37 7.10. Meter mode 39 7.11. Menu mode 43 8. Back panel interface 57 8.1. Speaker outputs 57 8.2. Anal...

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    2. Introduction 6 plm+ series operation manual rev 1.0.0 2. Introduction 2.1. Welcome thank you for choosing the lab.Gruppen plm+ series of powered loudspeaker management systems for your sound reinforcement needs. We are confident that you will be pleased with the performance, unique features, conf...

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    2. Introduction plm+ series operation manual rev 1.0.0 7 2.2.2.2. Isvpl™ the inter-sample voltage peak limiter (isvpl) tailors each power output to the characteristics of the connected load. Please refer to section 5.3.1 for further information. 2.2.2.3. Load verification & performance monitoring a ...

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    3. Installation 8 plm+ series operation manual rev 1.0.0 2.3. Additional documentation this document, the plm+ operation manual, serves as the primary reference source for detailed information on the installation and operation of plm+ series powered loudspeaker management systems. It also provides d...

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    3. Installation plm+ series operation manual rev 1.0.0 9 3.2.1. Rear mounting two rear support brackets along with associated mounting hardware are included with the plm+, as shown in figure 3.1; it is recommended that these are used wherever possible. Fit the brackets to the vertical rails at the r...

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    3. Installation 10 plm+ series operation manual rev 1.0.0 3.3. Cooling 3.3.1. Overview the plm+ series devices use a forced-air cooling system with airflow from front to rear, allowing high continuous power levels without thermal problems. Front-to-rear airflow is preferable as air at the front of a...

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    3. Installation plm+ series operation manual rev 1.0.0 11 if the mains plug (ac plug) fitted to the mains cable (ac cord) is not appropriate for your country, it can be removed and a locally-sourced one fitted instead, observing the color coding in the table below: table 3.1: ac plug configuration i...

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    4. Product overview 12 plm+ series operation manual rev 1.0.0 4. Product overview 4.1. Front panel overview the front panel presents the following amplifier status indicators: the front panel controls are clustered around a daylight readable lcd 3 , allowing adjustment and monitoring of the majority...

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    4. Product overview plm+ series operation manual rev 1.0.0 13 5 mute enable – select mute enable to allow the dynamic function buttons to operate as mute controls for the module inputs and power output channels. The mute enable button flashes when the mode is selected; a subsequent press deselects t...

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    4. Product overview 14 plm+ series operation manual rev 1.0.0 4.2. Rear panel 3 4 5 1 2 input 1 input 2 input 3 aes/ebu input 1-2 input 3-4 sec prim must be grounded/earthed made in sweden pin 1: scrn 2: pos 3: neg analog with i so- f loat tm 50-60hz 100-240v 2400-2950w ser. N:o removed! Ch 2 ch 1 c...

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    4. Product overview plm+ series operation manual rev 1.0.0 15 5 primary network connector – the primary neutrik rj45 ethercon® connection provides integration into an ethernet control network which may include other lake processors and the lake controller software. Network connection permits full co...

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    5. Operation and performance 16 plm+ series operation manual rev 1.0.0 5. Operation and performance this chapter provides comprehensive information on plm+ series connection, setup, operation and performance. The detailed information included here is essential to realizing the full functionality of ...

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    5. Operation and performance plm+ series operation manual rev 1.0.0 17 5.2.2. Rational power management™ rational power management™ (rpm) is a unique lab.Gruppen feature that allows for flexible allocation of power across channels of a plm+. Power that is not used by one output channel is free for u...

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    5. Operation and performance 18 plm+ series operation manual rev 1.0.0 cafÉ with esp: cafÉ (configuring amplifiers for the environment) is a dedicated software application for windows and osx that provides tools for system planning, specification and commissioning. CafÉ incorporates the equipment sp...

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    5. Operation and performance plm+ series operation manual rev 1.0.0 19 table 5.3 shows the theoretical maximum output power for a given load impedance and isvpl setting. Note: an isvpl-to-load calculator that will assist in generating the appropriate isvpl setting for a desired power load is availab...

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    5. Operation and performance 20 plm+ series operation manual rev 1.0.0 this condition indicates an attempt to draw excessive current at the output. The output is attenuated until the output current falls below the maximum current rating. Limiting is performed by the isvpl limiter in conjunction with...

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    5. Operation and performance plm+ series operation manual rev 1.0.0 21 5.3.5. Under voltage limiter (uvl™) plm+ devices are equipped with an under voltage limiter. With mulitple powerful devices on a mains distribution line, heavy current loads risk the reduction of voltage below that required for d...

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    5. Operation and performance 22 plm+ series operation manual rev 1.0.0 5.3.8.2. Power output channels a power output channel temperature warning or fault is indicated in one of the front panels leds (in the right-hand soft function buttons). • a warning is indicated by a static yellow led and adjace...

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    5. Operation and performance plm+ series operation manual rev 1.0.0 23 this protection system recognizes only continuous vhf signals at high levels that will not appear in speech or music. Any such content can therefore be considered as a fault condition. Vhf protection is essential to avoid damage ...

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    5. Operation and performance 24 plm+ series operation manual rev 1.0.0 5.3.11. Short circuit protection a low impedance or short circuit at the power output terminals is detected when the output current is high (current peak limiter is active) and, simultaneously, the peak output voltage is below a ...

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    6. Signal flow and lake® processing plm+ series operation manual rev 1.0.0 25 6. Signal flow and lake® processing 6.1. Signal flow the figures below depict the audio signal flow for a plm+ series device. It is worth noting that this sophisticated device provides seven points in the signal chain wher...

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    6. Signal flow and lake® processing 26 plm+ series operation manual rev 1.0.0 6.2.1. Power output section: limiting and sensitivity the current peak limiter (cpl) dynamically limits the drive to the power stage based on three parameters: sensed output current level, feedback from the output stage, a...

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    6. Signal flow and lake® processing plm+ series operation manual rev 1.0.0 27 6.4. Modules and frames 6.4.1. Overview a frame represents one physical lake processor device (e.G. Plm 12k44). A maximum of four modules are contained within each frame; these are referred to as module a, b, c and d. The ...

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    6. Signal flow and lake® processing 28 plm+ series operation manual rev 1.0.0 6.6. Files and presets the lake system provides various methods for storing and recalling module, frame, or system-wide data. An overview is provided below; for further information please refer to the lake controller opera...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 29 7. Front panel interface an overview of the front panel interface is provided in section 4.1. This chapter describes each cluster of controls as shown in the diagram below. 3 1 2 4 5 6 7 8 9 12 11 10 2 1 7.1. Overview the front panel...

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    7. Front panel interface 30 plm+ series operation manual rev 1.0.0 7.1.3. Selecting a module in the lake controller software via the front panel it is sometimes useful to identify which module icon/s in the lake controller software are associated with a particular hardware frame. To highlight the mo...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 31 7.4. Mute enable button the dynamic function buttons to the immediate left and right of the lcd are used as mute buttons only when the mute enable button 5 is activated (flashing). When mute enable is activated the mute enable button...

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    7. Front panel interface 32 plm+ series operation manual rev 1.0.0 7.8. Dynamic buttons, controls and leds figure 7.3: lcd with dynamic buttons, controls and leds 7.8.1. Communication led a this bright white led signifies selection in the lake controller, or controller communication providing visual...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 33 7.8.3. Rotary encoder c the rotary encoder is used to adjust parameters in conjunction with the selection made via the dynamic function buttons and lcd menus. The ring around the rotary encoder illuminates when a selected parameter i...

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    7. Front panel interface 34 plm+ series operation manual rev 1.0.0 7.8.4.1. Mute functions the plm+ provides mute functions at several different points in its audio chain. Please refer to section 6.1 for further information. The four types of mute are: 1. Plm+ input router mute 2. Module input mute ...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 35 note: fault condition led indications take priority over mute status indications. If a fault condition occurs, the led will indicate the fault by flashing and will note the mute status. When a frame fault is active the audio on all c...

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    7. Front panel interface 36 plm+ series operation manual rev 1.0.0 7.8.5. Led fault, warning and clip indication b d a tricolor led is embedded inside each of the eight dynamic function buttons. These convey a variety of status indications including faults and warnings, signal clip indications, modu...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 37 7.8.5.2. Warning or fault indications if certain parameters within the plm+ approach or exceed preset limits, a warning condition or fault condition may arise. One or more leds provide a visual indication of the problem, along with a...

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    7. Front panel interface 38 plm+ series operation manual rev 1.0.0 table 7.6: fault conditions (red led) warning type led no. On screen warning text event log text amp ch mute channel 5-8 amp ch. Mute amp channel mute amp temp fault channel 5-8 temp flt:ch temp fault: amp channel analog input fault ...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 39 7.10. Meter mode 7.10.1. Home view the default view when powering on the device is meter mode > home view as shown in figure 7.7. Figure 7.7: meter mode > home view home view provides a summary of module i/o gain level and limiter ga...

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    7. Front panel interface 40 plm+ series operation manual rev 1.0.0 note: output limiter (gain reduction) meters take into account the sum of plm+ isvpl and lake limitermax. 10 the icons in the center of the lcd indicate the amplifier channel to which each module output is routed. When two amplifier ...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 41 6 loadpilot status: 1. High freq pilot tone enabled/disabled, 2. Low freq pilot tone enabled/disabled, status 7 loadpilot status: 1. High freq pilot tone enabled/disabled, 2. Low freq pilot tone enabled/disabled, status 8 loadpilot s...

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    7. Front panel interface 42 plm+ series operation manual rev 1.0.0 7.10.4. Input meters view input view enables inspection of the source selected to each input router; input signal level before the input mixer (i.E. Prior to the home view module input meters); module input mixer routing; as well as ...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 43 5 output 1: output label - output gain meter - lx: sum of lake max-peak and max-rms gain reduction 6 output 2: output label - output gain meter - lx: sum of lake max-peak and max-rms gain reduction 7 output 3: output label - output g...

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    7. Front panel interface 44 plm+ series operation manual rev 1.0.0 7.11.1.1. Parameters with individual values and group totals the following parameters display two values: • module > gain • module > delay • module > limiters > maxrms level • module > limiters > maxpeak level the module parameter ca...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 45 • load monitor (see section 7.11.8) • configure no. Of cabinets in parallel • loadsmart verification • estimated no. Of cabinets 7.11.2. Module submenu only module output channels for routed power channels are displayed. This applies...

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    7. Front panel interface 46 plm+ series operation manual rev 1.0.0 7.11.2.2. Gain menu > module > gain figure 7.16: module gain edit screen press the illuminated button next to the module input/s and/or output/s for adjustment, and use the rotary encoder to change the value(s). Multiple gain values ...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 47 7.11.2.5. Amp gain menu > module > amp gain by default, all outputs are selected; use the rotary encoder to change the gain of all power outputs or press the associated output button to deselect one or more outputs. Amp gain adjusts ...

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    7. Front panel interface 48 plm+ series operation manual rev 1.0.0 maxrms level (maxrmslvl) this sets the maximum rms signal level at the module outputs. It is adjustable from -30 dbu to +30 dbu in 0.1 db increments, subject to user-defined level limits. The group total is displayed (in brackets) fo...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 49 7.11.3. I/o configuration menu > i/o config figure 7.17: i/o configuration sub menu this menu provides configuration options for input routing, along with settings for aes termination and iso-float as described in the following secti...

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    7. Front panel interface 50 plm+ series operation manual rev 1.0.0 with a router selected on the front panel, press the middle button on the left of the lcd to activate this parameter for editing. Use the illuminated rotary encoder to scroll through the following options: • auto select (default) • f...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 51 the plm+ device at the end of a distribution line should be set to terminated; all other plm+ devices should be set to unterminated. If an aes3 distribution amplifier (da) is being used to distribute the digital audio signals, with o...

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    7. Front panel interface 52 plm+ series operation manual rev 1.0.0 1 toggle the source from which you want to route the channels (module, analog, aes) 2 toggle up among the available source channels 3 toggle down among the available source channels 4 unused 5 unused 6 toggle left among the available...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 53 7.11.5.1. Frame info menu > frame > frame info frame info provides information about the device settings and configuration. All data in this front panel menu is read-only; some parameters are fixed, and some can be changed only via t...

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    7. Front panel interface 54 plm+ series operation manual rev 1.0.0 7.11.5.3. Breaker emulation limiter menu > frame > bel conf the breaker emulation limiter (bel) provides ampere selection (5-32 a) and breaker type selection (conservative, fast and universal). Select by pressing the adjacent button ...

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    7. Front panel interface plm+ series operation manual rev 1.0.0 55 7.11.6. Front panel display controls menu > frame > front contrast to adjust the front panel lcd contrast, select this option then use the rotary encoder to change the value. Dimming to adjust the front panel lcd & led brightness, se...

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    7. Front panel interface 56 plm+ series operation manual rev 1.0.0 7.11.8.1. Configure # of cabinets in parallel this option allows selection of the number of speaker cabinets connected to each plm+ output channel. Select individual or multiple outputs and use the rotary encoder to set the value fro...

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    8. Back panel interface plm+ series operation manual rev 1.0.0 57 8. Back panel interface an overview of the back panel interface is provided in section 4.2. This chapter describes each cluster of connections as shown in figure 8.1. 3 4 5 1 2 input 1 input 2 input 3 aes/ebu input 1-2 input 3-4 sec p...

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    8. Back panel interface 58 plm+ series operation manual rev 1.0.0 8.1.2. Speakon connectors 1 on both plm+ models, the power outputs are simultaneously available on a single 8-pole speakon connector, and on two 4-pole speakon connectors. The two 4-pole connectors carry the outputs of channels 1 & 2 ...

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    8. Back panel interface plm+ series operation manual rev 1.0.0 59 3+ 2- 4+ 2+ 1- 1+ 4- 3- 1+ 2 - 3+ 4 - nl4 plm+ output channels 1 & 2 nl4 plm+ output channels 3 & 4 nl8 plm+ output channels 1 - 4 figure 8.5: speakon nl4/nl8 configuration 8.1.3. Binding post connectors binding post versions of the p...

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    8. Back panel interface 60 plm+ series operation manual rev 1.0.0 connect the ‘+’ loudspeaker terminals to the red binding posts and the ‘ – ‘ terminals to the black binding posts. There are three methods of connecting speaker cables to the binding posts. 1. Solder 4 mm banana-plugs to the ends of t...

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    8. Back panel interface plm+ series operation manual rev 1.0.0 61 8.2.3. Unbalanced operation balanced connections are recommended where possible. However, if it is necessary to drive the device from equipment with an unbalanced output, wire the inputs as shown in figure 8.10. 1 2 3 cold hot scrn co...

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    8. Back panel interface 62 plm+ series operation manual rev 1.0.0 8.3. Aes3 digital i/o 8.3.1. Aes3 xlr connector 3 aes3 digital audio input is via two xlr3f connectors. Connectors are provided for inputs 1 & 2 and inputs 3 & 4. Wiring of this connector follows the same standard as for analog xlr co...

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    8. Back panel interface plm+ series operation manual rev 1.0.0 63 table 8.14: rj45 wiring & pin out description figure 8.15: rj45 wiring & pin out diagram when the device is connected to an active network, the yellow link led illuminates above the connector in use. Data activity on the network is in...

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    8. Back panel interface 64 plm+ series operation manual rev 1.0.0 8.5. Power inlet 8.5.1 power connector 7 a neutrik nac3 series powercon connector rated at 32 a is fitted to the rear of the plm+ for ac mains input. The power cable (ac cord) supplied with the plm+ has the mating connector ready-fitt...

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    9. Appendix plm+ series operation manual rev 1.0.0 65 9. Appendix 9.1. Faults and warnings overview category/type name on screen text description action frame warning lake controller offline ctrl offline frame unable to find lake controller on the network check network cabling/ network if controller...

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    9. Appendix 66 plm+ series operation manual rev 1.0.0 category/type name on screen text description action psu warning under voltage limit uvl active the under voltage limiter is active as the mains supply is approaching the lower end of the device´s operational voltage. Output power is decreased to...

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    9. Appendix plm+ series operation manual rev 1.0.0 67 category/type name on screen text description action warning more speakers ovr spkr count loadsmart detected more speakers than expected check load and cabling or fingerprint warning uncertain about load uncertain load loadsmart uncertain about l...

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    9. Appendix 68 plm+ series operation manual rev 1.0.0 9.2. Maintenance during normal operation this devices provides trouble-free service. If the lcd or front panel display requires cleaning, use a soft cloth only; do not use solvent cleaners. The dust filters on both sides of the front panel, behin...

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    9. Appendix plm+ series operation manual rev 1.0.0 69 9.3.2. Input and router defaults autoselect: on input sensitivity: +26 dbu dante: disabled aes3: terminated iso-float: enabled router 1: priority 1 = dante receiver (ch.1) priority 2 = dante receiver (ch.5) priority 3 = aes1 (ch.1) priority 4 = a...

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    9. Appendix 70 plm+ series operation manual rev 1.0.0 9.4. Current draw and thermal dissipation specifications the tables in this section provide measured current consumption and calculated heat dissipation for five different operating conditions for each plm+ series device. 1. Standby mode 2. Power...

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    9. Appendix plm+ series operation manual rev 1.0.0 71 table 9.3: plm20k44 current draw and dissipation specifications plm 20k44 level load rated power per channel line current power factor measured power (w) thermal dissipation (a) (%) in out dissipated btu/hr kcal/hr mains voltage 100 vac, 30 a sta...

  • Page 72

    9. Appendix 72 plm+ series operation manual rev 1.0.0 9.5. Glossary of terms, acronyms and abbreviations the explanations given in table 9.4 below are based on the specific use of each term in this manual. The definitions are not intended to be exhaustive and many of these terms have wider meanings....

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    9. Appendix plm+ series operation manual rev 1.0.0 73 table 9.4: glossary of terms, acronyms and abbreviations term description offline a device on an ethernet network which is not communicating with the rest of the network either due to a fault or intentionally is said to be offline. Online a devic...

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    10. Application guide 74 plm+ series operation manual rev 1.0.0 10. Application guide this chapter describes the practical application and use of plm+ series devices. 10.1. Rack i/o panels for fast and simple system connection, pre-wired racks using connection panels can be used. With an i/o connect...

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    10. Application guide plm+ series operation manual rev 1.0.0 75 10.2.2. Six plm+ series devices with 100-120 v mains supply if the mains supply is 115 v and the system requirement is 6 plm+s, then the mains capacity would need to be able to supply two 3 x 30 a circuits. There are two methods of achi...

  • Page 76

    10. Application guide 76 plm+ series operation manual rev 1.0.0 10.3.3. Module input gain input gain is used to adjust the level between different speaker cabinets in the system. This gain can remain at 0.00 db unless a lower level is required for the cabinet/s driven by this module. To adjust, navi...

  • Page 77

    10. Application guide plm+ series operation manual rev 1.0.0 77 10.4. Gain / level optimization 10.4.1. Maximize volume capability to maximize the volume capability of the device, ensure there is sufficient headroom in the signal path to avoid clipping before the limiters engage. It must be possible...

  • Page 78

    10. Application guide 78 plm+ series operation manual rev 1.0.0 figure 10.3 illustrates how to achieve the lowest possible output noise, although this is not a recommended configuration. • input clip: 0 dbfs • amp gain: 22 db • snr: 114.8 db • absolute noise floor: -71.9 dbu table 10.3: digital inpu...

  • Page 79

    10. Application guide plm+ series operation manual rev 1.0.0 79 figure 10.5 illustrates how to minimize absolute noise while achieving full power. In this illustration it can be seen that there is no available headroom. • input clip: 12 dbu • amp gain: 30.9 db • snr: 111.3 db • absolute noise floor:...

  • Page 80

    10. Application guide 80 plm+ series operation manual rev 1.0.0 10.5. Speaker configurations connecting two speakers in parallel to a plm+ power output presents a load to the amplifier which is half the impedance of that presented by one speaker. Therefore, the current that two speakers will attempt...

  • Page 81

    10. Application guide plm+ series operation manual rev 1.0.0 81 the data format allows for auxiliary data which can be used for information on signal characteristics as well as the sampled audio data. The physical interconnection, as defined by iec 60958 type i, specifies three-conductor 110-ohm twi...

  • Page 82

    10. Application guide 82 plm+ series operation manual rev 1.0.0 10.6.3.3. Cable types and distance limitations all digital connections should be made with 100 ohm balanced cables wired according to the aes3 standard (see section 8.2.2). Although standard analog microphone cabling may function in lim...

  • Page 83

    10. Application guide plm+ series operation manual rev 1.0.0 83 10.6.5. Additional reference material complete technical information on the aes/ebu (aes3) standard can be downloaded from the aes web site at http://www.Aes.Org/publications/standards/. 10.7. Digital clock configuration 10.7.1. Digital...

  • Page 84

    10. Application guide 84 plm+ series operation manual rev 1.0.0 10.7.2. Clock source priorities there are two options for clock source configuration: manual configuration or automatic detection. For manual configuration, the selected internal or external clock source remains fixed regardless of whet...

  • Page 85

    11. Technical specifications plm+ series operation manual rev 1.0.0 85 11. Technical specifications plm 12k44 plm 20k44 general processing / network lake / dante lake / dante numbers of amplifier channels 4 4 total burst power all channels (share among channels with rpm) 12000 w 20000 w max. Output ...

  • Page 86

    11. Technical specifications 86 plm+ series operation manual rev 1.0.0 plm 12k44 plm 20k44 gain amplifier gain 22 - 44 db, step size 0.1 db 22 - 44 db, step size 0.1 db analog attenuator - inf to 0 db, step size 0.25 db - inf to 0 db, step size 0.25 db rear-panel interface analog inputs 4 x 3 pin xl...

  • Page 87

    12. Warranty and support plm+ series operation manual rev 1.0.0 87 12. Warranty and support 12.1. General this product is manufactured by lab.Gruppen, and it is warranted to be free from any defects caused by components or factory workmanship, under normal use and service, for a period of six (6) ye...

  • Page 88

    12. Warranty and support 88 plm+ series operation manual rev 1.0.0 12.3.2. Factory service in the event a lab.Gruppen product requires factory service, you may contact lab.Gruppen’s service department for return instructions and a return authorization number. Please note for product return: 1. Use t...

  • Page 89

    89 plm+ series operation manual rev 1.0.0 notes notes.

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    90 plm+ series operation manual rev 1.0.0 notes notes.

  • Page 91

    91 plm+ series operation manual rev 1.0.0 notes notes.

  • Page 92

    Intercooler, class td and lake are national and/or international registered trademarks of lab.Gruppen ab. Plm+, powered loudspeaker management, r.Smps, loadlibrary, loadsmart, speakersafe, isvpl, bel, uvl and cal are trademarks of lab.Gruppen ab. Dolby is a registered trademark of dolby laboratories...