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9. Appendix

PLM+ SERIES Operation Manual rev

3.0.1

9. Appendix

9.1. Faults and Warnings Overview

Category/Type

Name

On screen text

Description

Action

FRAME

Warning

CTRL OFFLINE

on the network

Check network cabling/

network if controller

expected on the network

Warning

AES clock slipping

CLOCK SLIPPING

Frame not able to lock to

incoming AES stream

Check AES sender and

Warning

NAME CONFLICT

Two or more devices on the network

with the same Dante name

Review Dante

Warning

Dante module not detected

DANTE NEEDS

SERVICE

Lake cannot detect a functioning

Dante module

Restart device; if not

cleared it needs service

to operate Dante

Warning

Dante module with

DANTE FW INVALID

Dante module not loaded

with correct FW

with LakeUpdate

Warning

Audio Fault

AUDIO FAULT

Internal audio interface

not functioning

Restart device; if not

cleared it needs service

Warning

Sense fault DSP

SENS FLT:DSP

output faulty. Audio continues but

protection might be compromised.

No load monitoring

Restart device; if not

cleared it needs service

Fault

A/D converter power

supply fault

A/D PSU FAULT

Voltage supply to the analog input

converters faulty

Restart device; if not

cleared it needs service for

analog input to work

TEMP

Warning

Temperature warning

power supply

TEMP WARN:PSU

Power supply temperature

approaching critical levels

Improve cooling or reduce

output power to avoid

temperature becoming

critical

Warning

Temperature warning

DSP area

TEMP WARN:DSP

DSP area temperature approaching

critical levels

Improve cooling or reduce

output power to avoid

temperature becoming

critical

Warning

Power supply

Temperature Limit

PTL ACTIVE

to avoid power supply temp

fault protection

Improve cooling or reduce

output power to avoid

limiting

Warning

Amp channel

Temperature Limit

ATL ACTIVE

temp fault protection

Improve cooling or reduce

output power to avoid

limiting

Fault

Temperature fault

power supply

TEMP FLT:PSU

Power supply temperature reached

internal protection limit

Automatically restarts

when cooled down

Fault

Temperature fault

DSP area

TEMP FLT:DSP

DSP area reached

critical temperature

Improve cooling or

reduce power

Содержание PLM 20K44

Страница 1: ...ion Manual Rev 3 0 1 Item no OM PLM PLM SERIES PoweredLoudspeakerManagement System Rev 3 0 Quick Start Guide PLM 20K44 PLM 12K44 PLM 5K44 Item no QSG PLM SERIES Incorporating technologies from PLM 20K...

Страница 2: ...of fire or electric shock do not expose this apparatus to rain or moisture 17 Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids such as vases are pl...

Страница 3: ...ies with the limits for the European Electro Magnetic Compatibility EMC directive This equipment has also been tested and found to comply with the limits for a Class A digital device pursuant to Part...

Страница 4: ...4 1 Front Panel Overview 12 4 2 Rear panel 14 5 Operation and performance 16 5 1 Operation precautions 16 5 2 Power output performance 16 5 3 Amplifier and Load Protection Systems 18 5 4 Power Supply...

Страница 5: ...puts 63 8 3 AES3 Digital Inputs 65 8 4 RJ45 etherCON Network Connections 65 8 5 Power Inlet 67 9 Appendix 68 9 1 Faults and Warnings Overview 68 9 2 Maintenance 71 9 3 Factory Default Settings 71 73 9...

Страница 6: ...e best possible performance 2 2 1 AmplifierPlatform The PLM Series also incorporates Lab gruppen s exclusive Rational Power Management RPM which allows Any channel in either model is capable of delive...

Страница 7: ...ing Lake processing features incorporated in each module include Raised Cosine Equalization linear phase crossovers and LimiterMax loudspeaker protection Please refer to the Lake Controller Operation...

Страница 8: ...to the device or the supplied accessories Every Lab gruppen product is tested and inspected before leaving the factory and should arrive in perfect condition If any damage is discovered please notify...

Страница 9: ...nd may be fitted to point either to the front or rear of the rack the orientation used depends on the rack depth and position of the rear rack rails Two mounting methods are possible note that the met...

Страница 10: ...ment be sure that all the 3 3 2 TemperatureSensingandProtection The PLM is equipped with a sophisticated temperature sensing system which protects it from any overheating which may occur as a result o...

Страница 11: ...is enables multiple PLM units on the same AC mains circuit to be turned on simultaneously 3 5 Grounding Analog inputs feature Iso Float ground isolation a technology which combines the benefits of tra...

Страница 12: ...for cleaning please refer to section 9 2 for further information NOTE NEVER operate this device without the dust filters in place 3 Display The display illuminates when the device is on except when sc...

Страница 13: ...ionality mute indication and faults and warning indications relating eously when indicating frame faults red or warnings yellow Please refer to section 9 for further details 9 Dynamic Function Buttons...

Страница 14: ...with one of the two output connector options Both options allow for Bridge Mode operation which is activated in the Lake Controller software Please refer to the Lake Controller Operation Manual for m...

Страница 15: ...switch Alternatively this connection can be used to daisy chain directly to another Lake Processor The daisy chain topology should not be used with Dante Note Do not create a closed loop when configur...

Страница 16: ...wer of the largest model Hence by using RPM it is possible model LoadImpedance ohms 2ohms perchannel 2 67ohms perchannel 4ohms perchannel 8ohms perchannel 16ohms perchannel PLM 12K44 3000 W 3000 W 300...

Страница 17: ...default voltage limitation given in the specification sheet To prevent the risk of over allocating the power supply for varying or incorrect load impedances RPM has a limitation for the smaller model...

Страница 18: ...s of the threshold can appear at the output This results in zero voltage overshoot at the output with a rounded limitation up to the threshold The amplitude of the output signal between digital sample...

Страница 19: ...he ISVPL threshold may be set at any level between 17 8 V and 600 V in the Lake Controller software For further details please refer to the Lake Controller User Manual 5 3 2 CurrentPeakLimiter CPL The...

Страница 20: ...ps below 80 V The amount of reduction applied increases as mains voltage drops towards 65 V at 65 V the power supply is shut down The mains supply is continually monitored and value can be set from 1...

Страница 21: ...on and temperature reaches a dangerous level a fault is displayed and audio is muted Each power output channel the power supply and DSP area have separate indications For all temperature faults temper...

Страница 22: ...ifier output power is reduced to avoid power supply fault protection muting of all channels Limiting is removed when the temperature falls below the warning threshold The PLM includes protection circu...

Страница 23: ...ED that will illuminate yellow and display VHF Warning when the maximum 12 dB gain reduction is applied 20K44 and 12K44 only The Power channel LED will light red for VHF Fault Both of these will be re...

Страница 24: ...SMPS Regulated Switch Mode Power Supply is designed to keep supply voltage rails at optimum levels Thus the R SMPS can deliver full rail voltage to the output sta consistent transient response and a c...

Страница 25: ...such as EN54 16 and NFPA72 LoadPilot functions by automatically superimposing low level pilot tones on the input signal if any present to the amplifier One tone is below the range of human hearing app...

Страница 26: ...uctance in loudspeaker cables Loudspeaker cable inductance at higher frequencies is very high relative to passive resistance and the inductance increases linearly with length Consequently monitoring a...

Страница 27: ...arnings can be triggered Speaker shorted warning Both tones below lower threshold Corresponds to a distant short circuit that can either be in the cabling or in the speaker Speaker damaged warning One...

Страница 28: ...PM Lake Contour Module B Lake Contour Module C Lake Contour Module D ISVPL Auto RPM Amp Gain LoadSmart LoadPilot AMP Attenuator Mute Phase Rev Custom RPM ISVPL Auto RPM Amp Gain LoadSmart LoadPilot AM...

Страница 29: ...L sets the PLM s maximum output voltage and therefore also the maximum output power The ISVPL setting is made via MENU MODULE LIMITERS ISVPL and can also be set from the Lake Controller software The s...

Страница 30: ...directly via the front panel 6 4 ModulesandFrames 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...

Страница 31: ...s are stored on the Lake Controller PC and data is passed across the network when recalling or storing these type of files A Module file is the smallest set of data that can be stored and recalled it...

Страница 32: ...w LoadPilot view Temperature Meters view Input Meters view and Module Meters view To navigate through these views press the METER button or turn the rotary encoder button Please refer to section 7 10...

Страница 33: ...Lake Controller 7 2 FrontPanelKeyLock It is possible to lock the front panel buttons for security purposes When this function is active all front panel controls except power state are disabled and all...

Страница 34: ...minutes MUTE ENABLE mode will automatically be disabled 7 5 MeterButton The front panel display has two main operating modes Meter Mode default and Menu Mode In normal operation the display will be in...

Страница 35: ...d via the front panel by selecting Frame menu and then Front Dimming Dimming affects all LEDs as well as the backlight of the display 7 8 2 FrameFaultsandWarningsLED B All four LEDs on the left flash...

Страница 36: ...re different on each channel Turning the rotary encoder will adjust each parameter by the same increment When in Meter Mode the rotary encoder allows the user to change between the available meter vie...

Страница 37: ...es or outputs that are sourced from the PLM input To mute or unmute the PLM inputs 1 Press METER until the Input Meter View is displayed 2 Press MUTE ENABLE 3 Use the associated dynamic function butto...

Страница 38: ...er output mutes are assigned in this mode see section 7 8 4 5 However Module output mute status and control are also available in Menu Mode and may also be viewed and controlled from the Lake Controll...

Страница 39: ...ip indication is displayed A warning is displayed at 24 dBu i e 2 dB from Clip Module Input Stage If the signal level at this point exceeds 21 dBu a clip indication is displayed Input clipping is indi...

Страница 40: ...Amp Channel BEL ACTIVE Frame 1 BEL Active N A CTRL OFFLINE Frame 1 N A NAME CONFLICT Frame 1 OFFLINE 1 LOAD NOT VER Module Channel 2 3 5 8 UNCERTAIN LOAD Channel 5 8 Load Uncertain Uncertain About Loa...

Страница 41: ...nit Needs Service TEMP FLT PSU Frame 1 PSU Area Temp Fault Temp Fault Power Supply Unit MAINS 400 VPK Frame 1 PSU Mains Over Voltage Peak Frame Fault PSU Mains 400 VPK MAINS 270 V Frame 1 PSU Mains Ov...

Страница 42: ...MS and ISVPL gain reduction faults warnings clips mutes 6 Module output label for Power channel 2 gain sum of Lake MAX Peak MAX RMS and ISVPL gain reduction faults warnings clips mutes 7 Module output...

Страница 43: ...20K44 Bridge Mode is visible via this icon notation on the PLM Front Panel in Home View however the Lake Controller information 7 10 2 AmplifierMetersView shown in Figure 7 9 1 Output 1 V Voltage Met...

Страница 44: ...eveloped in the load relative to the PLM s maximum output power capability The Gain Reduction Meter L indicates the degree of limiting being applied by the PLM ISVPL and or the Lake LimiterMax 7 10 3...

Страница 45: ...fault warning clip 4 Input Router 4 Selected input type input gain level relative to clip router fault warning clip 5 Module A Input Mixer Module A input level meter Input 1 Connection Status 6 Module...

Страница 46: ...pressing the MENU button After pressing the MENU button various submenu options are displayed as shown in the figure below Figure 7 13 Menu Mode Main Menu Press the illuminated button adjacent to the...

Страница 47: ...ues for this parameter on all Groups to which the Module is assigned Please refer to the Lake Controller Operation Manual for further information on Groups 7 11 1 2 MenuStructureOverview From the Main...

Страница 48: ...e Module Menu the screen shown in Figure 7 14 is displayed Press the illuminated button adjacent to the required option to view or edit the associated parameters Figure 7 14 Module Submenu 7 11 2 1 In...

Страница 49: ...l limits The audio signal may be delayed typically for reasons of driver or delay subsystem alignment at either the Module inputs or on individual outputs Delay added at the inputs affects all outputs...

Страница 50: ...shold The ISVPL prevents the voltage of the PLM outputs from exceeding a pre determined value The ISVPL Threshold can be adjusted between 17 8 V to 600 V which represents the instantaneous peak voltag...

Страница 51: ...of 0 dB implies a hard knee characteristic Note LimiterMax provides peak and RMS limiting features referred to as MaxPeak and MaxRMS respectively Full details regarding LimiterMax can be found in the...

Страница 52: ...priority levels allowing any input to be placed in a sequence providing automatic input signal fail over Dante and AES3 inputs have priority over analog inputs Note Only one analog input is allowed in...

Страница 53: ...to a higher priority than a digital source Analog Input Sensitivity and Digital Gain Offset Press a dynamic function to the right of the LCD to toggle the selection of input source and input sensitiv...

Страница 54: ...nt settings are also displayed on the front panel I O STATUS screen The analog inputs utilize Iso Float transformerless electronic balancing circuitry This provides electrical isolation from an analog...

Страница 55: ...fault setting of 0 00 dB i e no attenuation is adjustable in 0 25 dB increments down to 100 dB Adjustment of attenuation at the input to the PLM power stage is available on a per channel basis This ad...

Страница 56: ...higher with RPM see the technical data sheet for actual maximum voltage Note When Bridge Mode is activated double the channel output voltage is available Max Output Current MaxOutCurr Displays the ma...

Страница 57: ...address subnet mask for the selected unit and can only be changed via the Lake Controller software Please refer to the Lake Controller Operation Manual for further details ro Conf Auto DHCP or Fixed I...

Страница 58: ...n existing Frame Preset use the rotary encoder to select the required Preset then press the RECALL button to overwrite the current configuration Note Frame Presets must initially be created in the Lak...

Страница 59: ...ct this option to initiate LoadSmart verification then select YES to continue LoadSmart performs a rapid test of all output channels and displays the results on the LCD a few seconds later Figure 7 23...

Страница 60: ...Interface 8 1 SpeakerOutputs The PLM is available with either 4 mm binding posts or Neutrik speakON connectors for the outputs The outputs of the PLM can produce a high voltage Do not connect or disco...

Страница 61: ...CH 1 2 1 2 BRIDGE CH 3 4 1 2 SPEAKER OUTPUTS Figure 8 2 speakON Connections NL4 PLM Output Channels 1 2 NL4 PLM Output Channels 2 1 BRIDGE MODE NL4 PLM Output Channels 1 2 1 1 1 2 2 Figure 8 3 speakO...

Страница 62: ...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 8 1 3 BindingPostConnectors CH 2 CH 1 CH 4 CH 3 SPEAKER OUTPUTS CLASS 3WIRING BRIDGE BRIDGE CH...

Страница 63: ...rets by finger only being careful not to overtighten 3 Crimp 4 mm insulated spade terminals onto the ends of the wires and push into the binding post assembly from above Ch 1 3 or below Ch 2 4 The hol...

Страница 64: ...um rejection than the more common method of joining pins 1 and 3 together in the XLR However if only a single core unbalanced cable is available the method shown in Figure 8 15 may be used 1 2 3 HOT S...

Страница 65: ...er to section 7 10 3 1 for further details AES EBU INPUT 1 2 INPUT 3 4 Figure 8 12 AES Inputs 8 4 RJ45etherCONNetworkConnections Two RJ45 etherCON style network connections are provided as shown in Fi...

Страница 66: ...is normal for the ACT LED to flicker either sporadically or continuously 8 4 1 PrimaryNetworkConnection The Primary Network connection is used for Lake Controller connectivity and Dante digital audio...

Страница 67: ...he PLM for AC mains input The power cable AC cord supplied with the PLM has the mating connector ready fitted but may require a mains AC plug specific to your country to be fitted to the other end The...

Страница 68: ...monitoring Restart device if not cleared it needs service Fault A D converter power supply fault A D PSU FAULT Voltage supply to the analog input converters faulty Restart device if not cleared it nee...

Страница 69: ...own auto restart attempt Check mains distribution connection Fault Mains voltage above 270 V MAINS 270 V Power supply detects mains voltage above operation voltage Protective shut down auto restart at...

Страница 70: ...ault Service channel SERVICE CH Restart device if not cleared it needs service Fault Very high frequency fault VHF FAULT Check input signal or reduce output With a maximum of 12 dB of gain reduction i...

Страница 71: ...edure should only be carried device has had prolonged operation in an extreme environment such as one where cracked oil smoke machines are in use If the device is used in extreme conditions it is reco...

Страница 72: ...Dante Receiver Ch 6 Priority 3 AES1 Ch 2 Priority 4 Analog 2 Router 3 Priority 1 Dante Receiver Ch 3 Priority 2 Dante Receiver Ch 7 Priority 3 AES1 Ch 3 Priority 4 Analog 3 Router 4 Priority 1 Dante R...

Страница 73: ...VAC Standby 0 3 7 0 7 24 6 Power on Idling Green Mode 0 5 59 0 59 200 50 Power on Idling Performance Mode 0 7 77 0 77 263 66 Pink Pseudo Noise 16 Ch 700 x 4 4 2 498 350 148 506 127 8 Ch 1250 x 4 7 3 8...

Страница 74: ...817 1502 1315 4487 1131 2 67 Ch 3000 24 5 99 2894 1437 1456 4969 1253 2 Ch 3000 25 1 99 2980 1361 1619 5524 1393 LoadPilot Sine 20 kHz 8 Ch 2 0 97 226 0 226 773 195 Mains Voltage 208 VAC 17 3 A Standb...

Страница 75: ...457 1896 1561 5326 1343 2 67 Ch 5000 29 5 99 3439 1752 1687 5756 1451 2 Ch 4400 29 9 99 3495 1665 1830 6245 1575 LoadPilot Sine 20 kHz 8 Ch 2 0 97 232 0 232 790 199 Mains Voltage 208 VAC 17 3 A Standb...

Страница 76: ...A Class C network Iso Float Iso Float is Lake s proprietary method of electronic balancing which provides a particularly high level of isolation and immunity from ground loops ISVPL ISVPL is an abbre...

Страница 77: ...as voice coil and magnet temperatures providing the operator with real time performance monitoring See LoadLibrary speakON Star Topology A network topology which uses a network switch to connect to i...

Страница 78: ...tHeadroom AnalogInputsOnly Input Headroom should be set to 12 dBu if the source can be limited to 12 dBu otherwise it should be set to appropriate headroom at the input stage only To adjust navigate t...

Страница 79: ...er adjust via MODULES LEVELS adjusted further 10 2 5 Attenuator An attenuator gain adjustment is provided for each power output channel in the PLM This control replaces the To adjust navigate to I O C...

Страница 80: ...ureExamples Input Clip 0 dBFS Amp Gain 35 dB SNR 114 2 dB Absolute Noise Floor 71 3 dBu Table 10 2 Digital Input Low Noise with Good Headroom High Input High SPL Figure 10 3 illustrates how to achieve...

Страница 81: ...le 10 4 Analog Low Noise with Limited Output Low Input Low SPL Figure 10 5 illustrates how to minimize absolute noise while achieving full power In this illustration it can be seen that there is no av...

Страница 82: ...Moderate Noise with Very High Output Very High SPL 10 4 SpeakerConfigurations impedance of that presented by one speaker Therefore the current that two speakers will attempt to draw from Limiter to b...

Страница 83: ...ation it is properly designated the AES3 standard AES3 is a serial transmission format for linearly represented uncompressed digital audio data It describes a method for carrying two channels of perio...

Страница 84: ...leTypesandDistanceLimitations 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...

Страница 85: ...errors known as jitter small additional amounts of latency so should not be used unless necessary 10 5 4 2 Passivesplitters One single AES3 input may be split into more signals using a simple passive...

Страница 86: ...Pwr 1 C Pwr 2 C Pwr 3 C Pwr 4 C Dante C Channel 1 8 48 96 kHz OUTPUTS SAMPLE RATE CONVERTER CLOCK C AUTO MANUAL 48 C AUTO MANUAL 44 Table 10 7 Digital Clocking System In Figure 10 7 each circled C re...

Страница 87: ...the Lake Controller Operation Manual for additional information 10 6 3 DanteClockConfiguration Dante uses its own digital clocking technology across the Ethernet network to ensure that all Dante devi...

Страница 88: ...kHz for 1 W THD N at 1 kHz and 1 dB below clipping Dynamic range Channel separation Crosstalk at 1 kHz Frequency response 1 W into 8 ohm 20 Hz 20 kHz Internal sample rate Data path Product propagation...

Страница 89: ...a M NEMA L5 30 Twist lock 125 V 30 A and CEE 7 7 Schuko 230 V 16 A NEMA L5 30 Twist lock 125 V 30 A and CEE 7 7 Schuko 230 V 16 A Power supply features s e Y r e w o p h s u r n I t r a t s t f o S W...

Страница 90: ...ot covered by the warranty Units on which the serial number has been removed or defaced will not be eligible for warranty service Lab gruppen shall not be responsible for any incidental or consequenti...

Страница 91: ...n Authorization number Please note for product return 1 Use the original packing 2 Include a copy of the sales receipt your name return address phone and fax number email address and description of th...

Страница 92: ...gruppen AB Dolby is a registered trademark of Dolby Laboratories Raised Cosine Equalization LimiterMax and Iso Float are trademarks of Dolby Laboratories Audinate is a registered trademark of Audinate...

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