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Содержание PLM Series

Страница 1: ...Rev 1 0 2 Item no OM PLM Operation Manual PLM Series Powered Loudspeaker Management systems...

Страница 2: ...ON 10 5 1 Unpacking 10 5 2 Mounting 10 5 3 Rear Mounting 10 5 4 Cooling 11 5 5 Operating voltage 12 5 6 Grounding 12 6 PLM SERIES FEATURES 13 6 1 Front Panel overview 13 6 2 Rear Panel overview 15 6 2...

Страница 3: ...e DLC PLM Edition software from the PLM 27 9 2 Key Lock Front Panel 28 9 3 Power button 28 9 4 Mute Enable button 28 9 5 Meter button 28 9 6 Menu button 28 9 7 Network activity LED 29 9 8 Rotary encod...

Страница 4: ...rial no 44 9 12 5 3 Frame Reset 44 9 12 5 3 1 Factory Reset 44 9 12 5 3 2 Soft Reset 44 9 12 5 4 Network 44 9 12 5 4 1 IP Address 45 9 12 5 4 2 MAC Address 45 9 12 5 4 3 Frame ID 45 9 12 5 4 4 Network...

Страница 5: ...n Structure 63 12 3 1 Gain Level Optimization 63 12 4 Speaker configurations 67 12 5 Connecting Digital Audio Devices 67 12 5 1 AES EBU digital audio 67 12 5 2 Sampling rates and latency 67 12 5 3 Int...

Страница 6: ...bsolete outlet Connect only to AC power outlets rated 100 120 V or 200 240 V 50 60 Hz as dictated by the unit s voltage configuration 9 Do not use this unit if the power cord is broken or frayed Prote...

Страница 7: ...ment on and off the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the antenna Increase the separation between the equipment and re...

Страница 8: ...stem management and protection features found in no other product Thank you again for placing your confidence in Lab gruppen products 4 2 Main Features ThePLMSeriesincorporatesanumberofsophisticated t...

Страница 9: ...ler PLM Edition enables seamless plug in integration of the industry standard SmaartLive analysis system With this feature operators can measure with SmaartLive and make EQ adjustments at the same tim...

Страница 10: ...company immediately Only the consignee may initiate a claim with the carrier or their insurers for damage incurred during shipping Save the carton and packing materials for the carrier s inspection I...

Страница 11: ...Also note that any unused rack spaces should have solid blanks fitted not ventilation blanks to ensure efficient air circulation Leaving gaps in between items of equipment degrades the effectiveness...

Страница 12: ...PLM can be turned on using the front panel power switch When the unit is switched on the PLM goes through a soft start sequence as it performs a diagnostic routine on the internal circuitry The fans...

Страница 13: ...overview Display The display will illuminate when the PLM is active Many of the traditional controls and displays found on conventional amplifiers are replaced on the PLM by a simple set of on screen...

Страница 14: ...n buttons are set adjacent to the display in two groups of four These buttons are unlabelled because their functions change according to the current menu mode as displayed on the screen Status LEDs Ei...

Страница 15: ...transmission techniques seek guidance from authoritative references or qualified personnel before attempting to interconnect equipment in the digital domain See section 12 5 for further information A...

Страница 16: ...ports automatically switch to operate at the two standard Ethernet data rates of 10Base T and 100Base T and also allow either crossed or straight network cables to be used Two LEDs above each port in...

Страница 17: ...ils of how to use the software application are contained in the documents DLC User Manual and DLC User Manual PLM Edition Addendum both of which are supplied with the PLM 6 3 Integrated Dolby Lake Pro...

Страница 18: ...conditions The output maintains its flat frequency response even into complex loads with very low nominal impedances Reliability is very high and there is no interference with nearby RF equipment Sup...

Страница 19: ...age Peak Limiter ISVPL The ISVPL is a high quality voltage limiter Its purpose is to ensure that the voltage at the output terminals never exceeds the threshold which has been set It operates on two f...

Страница 20: ...overloaded Also high power products such as those in the PLM Series can potentially draw more current with output devices still within safe operating areas than is allowed by the mains fuse Only the...

Страница 21: ...and the amplifier returns to normal operation This protection system recognizes that continuous VHF signals at high levels do not appear in speech or music Any such content can therefore be considered...

Страница 22: ...the output stage at all times allowing the PLM to exhibit consistent transient response and undistorted LF response Low Inrush Current High power amplifiers with inadequate inrush current limiting can...

Страница 23: ...input type is selected analog digital etc 2 Module Input Mutes These mute the inputs to whichever Dolby processing Modules have been defined for the PLM configuration and will be post any input mixing...

Страница 24: ...L SET TO 153 V INPUT SENSITIVITY WITH ISVPL SET TO 17 8 V GAIN SETTING dB dBu Vrms dBu Vrms 44 1 1 0 68 19 8 79mV 41 1 9 0 96 16 8 0 11 38 4 9 1 36 13 8 0 16 35 7 9 1 92 10 8 0 22 32 10 9 2 71 7 8 0 3...

Страница 25: ...n be realised in other Frames by using Super Modules see section 8 3 2 The PLM s default configuration is 2 x 1 in 2 out using two Modules Module A and Module B Each Module is configured as provide tw...

Страница 26: ...ule has been configured for a specific speaker system including crossover EQ limiter and delay settings it is good practice to store the data in the PC This allows the Module configuration data to be...

Страница 27: ...y encoder See section 9 12 for a full description of MENU MODE and the various submenus available therein Warnings about fault conditions or other extreme operating states are given primarily by the t...

Страница 28: ...ions are made MUTE ENABLE mode self cancels after two minutes Alternatively it can be de selected by a second press of the MUTE ENABLE button 9 5 Meter button The PLM control system has two operating...

Страница 29: ...rious display pages When a menu item is selected that can have its parameter value adjusted by the rotary control the ring around the knob illuminates Turn the encoder clockwise to increment the selec...

Страница 30: ...U mode and takes the display back to a previous screen up one level in the menu tree In METER mode pressing the EXIT key will always return the display to the HOME view 9 FRONT PANEL INTERFACE 9 10 So...

Страница 31: ...lby Lake processing system and not at the physical inputs to the PLM This means it is possible to mute the input to one Module while mixing input sources together and feeding the sum to the second Mod...

Страница 32: ...LC PLM Edition software plus mute status indication for the two Module inputs A and B and the four output channels 1 thru 4 The eighth button is currently unused The positions of the LEDs logically fo...

Страница 33: ...ve Figure 9 10 Voltage Clip 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 will th...

Страница 34: ...udio In Fault Frame 1 AUDIO FAULT Frame Fault Audio Interface Amp Temp Fault Channel 5 8 TEMP FLT CH Temp Fault Amp Channel Mag Temp Fault Channel 5 8 TEMP FLT MAG Temp Fault Magnet VC Temp Fault Chan...

Страница 35: ...t channels Two examples of displays are given as illustration If the processor is configured as two independent 2 way crossovers the relationship between inputs and outputs will be indicated as shown...

Страница 36: ...T PANEL INTERFACE 9 11 1 Meter view 1 Home View 1 AUX FAULT WARNING Y 10SUB 50 CL3W FAULT WARNING Y 10 24 FAULT WARNING HOME SUB FAULT WARNING 45 LO FAULT WARNING 11 MID FAULT WARNING 13 HI FAULT WARN...

Страница 37: ...Temperature view Line 2 blank Line 3 Power supply temperature meter denoted by PSU A bargraph meter showing the current PSU temperature as a percentage of its maximum permitted value The numerical per...

Страница 38: ...et Load Data Dante 9 FRONT PANEL INTERFACE 9 12 Menu Mode 9 12 1 Menu View Menu Module Input Cfg Attenuation Dante Load mon Frame Prst Frame Figure 9 17 Most of the PLM s operating functions are acces...

Страница 39: ...he Module delay parameters may also be adjusted from the Dolby Lake Controller PLM Edition Software The Group Sum value is also displayed in brackets for this parameter for each channel 9 12 2 3 Phase...

Страница 40: ...ated soft buttons 9 FRONT PANEL INTERFACE 9 12 2 5 1 Inter Sample Voltage Peak Limiter ISVPL The purpose of the ISVPL is to prevent the voltage at the PLM s output terminals exceeding a pre determined...

Страница 41: ...are Analog input 1 Analog 1 Analog input 2 Analog 2 AES EBU digital input Ch A AES 1 AES EBU digital input Ch B AES 2 Dante network Ch A Dante 1 Dante network Ch B Dante 2 A seventh routing selection...

Страница 42: ...on However if the AES EBU link connectors are being used to daisy chain the PLM inputs together then only the last PLM in the chain should have its termination set on 9 FRONT PANEL INTERFACE Auto Sel...

Страница 43: ...vely individual channels may be adjusted independently by selecting them one at a time with soft buttons 5 8 Note that it is not possible to adjust attenuation for a subset of channels only one channe...

Страница 44: ...ddr 80 20 8 a6 14 0 Frame ID 58000010 fcda7101 Figure 9 25 9 FRONT PANEL INTERFACE version numbers of the various firmware elements within the PLM This information may be of relevance if a technical i...

Страница 45: ...ocessing delay so that all channels incur a total processing delay which equals that of the processing delay of legacy Dolby Lake equipment See DLC User Manual chapter 7 2 6 for further information 9...

Страница 46: ...nabled in the DLC PLM Edition software the submenu will not be available and a notification to this effect will be displayed instead Menu Dante Tx 1 Dante Analog 1 Dante Tx 2 Analog 1 Figure 9 29 9 FR...

Страница 47: ...that PLM and is thus available to other Dante enabled devices i e further PLMs In this way the PLM is being used as a break in box 9 12 8 2 Probe Routing The Dante protocol allows for the inclusion of...

Страница 48: ...o the signal ground of the equipment at the source end This usually provides better noise and hum rejection than the more common method of joining pins 1 and 3 together in the XLR However if only a si...

Страница 49: ...pinout is shown in Table 10 2 AES EBU Wiring Table Pin 1 Ground Shield Pin 2 Hot Pin 3 Cold Table 10 2 Note that this is the only possible method of wiring there is no equivalent of an unbalanced con...

Страница 50: ...e of bridge mode operation however the present system management software does not support this mode and therefore bridged operation is NOT recommended Please contact plmsupport labgruppen com for fur...

Страница 51: ...overtighten The outputs of the PLM can produce a high voltage Do not connect or disconnect loudspeaker s while the PLM is powered on Never operate the PLM with any portion of bare loudspeaker wire exp...

Страница 52: ...ton s Section 9 10 2 details all the warning and fault indications Table 11 1 provides additional explanation of what problems the PLM might have encountered to give rise to the each of the fault or w...

Страница 53: ...When speaker Fingerprints are taken a tolerance band is also defined to take into account production variations If LoadSmart results lie in this band a Load uncertainty warning results The user should...

Страница 54: ...overloaded PAL ACTIVE n a Fault Power limiter active Total amplifier power being delivered has exceeded the safe maximum value and the PAL has become active VOLTAGE CLIP n a Fault Voltage limiter act...

Страница 55: ...and the foam filter elements then withdrawn They are best cleaned with a hand held vacuum cleaner If the LCD display needs cleaning use a soft cloth only do NOT use solvent cleaners of any kind as the...

Страница 56: ...1 x 4 2 7 1 4 160 4 156 532 134 16 Ch 0 25 x 4 2 5 1 3 149 1 148 505 127 Mains connector 230 V CE version 230V ETL version 115 V ETL version 32 A Neutrik PowerCon Twist lock 1 The amplifier section s...

Страница 57: ...table for Ethernet networks using four twisted pairs of conductors Often referred to as UTP cable Unscreened Twisted Pair Cat 5 has generally been replaced by Cat 5e e enhanced Either Cat 5e or Cat 6...

Страница 58: ...cs of commonly used loudspeakers The file for each speaker type is termed its Fingerprint Finite impulse response filter An alternative design of crossover filter realisable in the digital domain prov...

Страница 59: ...specific to the PLM Series These Modules include a database of the electrical characteristics of various popular loudspeakers in addition to the standard Module data The PLM uses the load data when ve...

Страница 60: ...r full redundancy Sensitivity The gain available in an audio amplifier or other processor can be expressed as the amplifier s sensitivity The sensitivity is the lowest level signal the amplifier can a...

Страница 61: ...he protection circuit monitors the output this muting the amplifier channel if necessary View The information available in the front panel display s Meter mode is split into three pages which are term...

Страница 62: ...e 12 1 I O Panels System interconnection on site is made quicker and simpler if racks are prewired internally to connection panels If the panels are fitted to the front of the rack all audio loudspeak...

Страница 63: ...ts at a number of points in the signal flow path Thus there are many places in which one can adjust the levels in the PLM Each point serves a different purpose The following can be used as guidelines...

Страница 64: ...above the improvement in noise performance at the cost of losing headroom and compression features is only 0 6 dB It is therefore recommended not to try to optimize performance in this manner 12 APPLI...

Страница 65: ...ailable headroom Parameter list Input clip 12 dBu Amp gain 30 9 dB SNR 111 3 dB Absolute Noise Floor 68 4 dBu application guide 12 Gain Structure Low SPL Low Input Application Low noise with limited o...

Страница 66: ...is makes it possible to increase the average SPL by utilizing the internal compression possibilities Parameter list Input clip 0 dBFS Amp gain 35 dB SNR 114 2 dB Absolute Noise Floor 71 3 dBu 12 APPLI...

Страница 67: ...al analog input Most of this delay is generated internally by the conversions between analog and digital ADC and then back to analog DAC again This delay is often 12 4 Speaker configurations Care must...

Страница 68: ...ters have been aligned as any alteration in latency may nullify the time alignment The PLM s Dolby Lake system permits delay to be added per channel adjustments of a few milliseconds are usually adequ...

Страница 69: ...e degradation of digital audio signals by observing the eye pattern on an oscilloscope but such tests are generally impractical with a portable system Thus it is recommended that where possible Fortra...

Страница 70: ...te PLM firmware upgrade is conducted via the network from the PC running the DLC PLM Edition software There are two methods of performing the upgrade by using the Firmware Update Utility or by using t...

Страница 71: ...at source Then reconnect the power and switch the PLMs back on The PLM will then finalize the installation 10 process The message Please Wait is displayed on the unit followed by Amp Fw updated OK Cy...

Страница 72: ...way 2 Tap 3 Modules and drag an old module from the Modules scrolling bar into the work area The module will flash indicating that the PLM it relates to has old firmware and a warning message will app...

Страница 73: ...Power Average Limiter PAL max average during 500 ms 12 Arms Gain Amplifier gain 22 44 dB step size 0 1 dB Analog attenuator Inf to 0 dB step size 0 25 dB back panel interface AES EBU I O input link 2...

Страница 74: ...anufacturing without assuming any obligation to change or improve products previously manufactured This warranty is exclusive and no other warranty is expressed or implied This warranty does not affec...

Страница 75: ...L a b g r u p p e n AB S w e d e n i n t e r n a t i o n a L c o n t a c t i n f o L a b g r u p p e n c o m U S CONTACT i n f o u s t c e l e c t r o n i c c o m w w w l a b g r u p p e n c o m...

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