Lab.gruppen PLM Series Operation Manual
Plm series powered loudspeaker management systems
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Summary of Contents for Lab.gruppen PLM Series
- Page 1 Operation Manual Series ™ Powered Loudspeaker Management systems ™ Rev. 1.0.5 Item no. OM-PLM...
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Page 2: Table Of Contents
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 Front Panel overview .........................13 6.2 Rear Panel overview ..........................15 6.2.1 Input connectors and Links ....................15 6.2.2 Output connectors........................16 6.2.3 Network connectors .......................16... - Page 3 9.12.1 Meter view 1 – Home View ....................35 9.12.2 Meter View 2 – Module View ....................35 9.12.3 Meter View 3 – Temperature View ..................36 9.13 Menu Mode ............................37 9.13.1 Menu View ..........................37 9.13.2 Module submenu ........................38 PLM Series Operation Manual 3...
- Page 4 10 bACk PANEL INTERFACE ........................47 10.1 Power inlet ............................47 10.1.1 PowerCon® wiring details .......................47 10.2 Audio Input and Links ........................47 10.2.1 Analog inputs and Links ......................47 10.2.1.1 Unbalanced operation ....................47 10.2.1.2 Iso-Float electronic balancing ..................48 4 PLM Series Operation Manual...
- Page 5 12.7 Firmware Upgrades .......................... 69 12.7.1 Firmware Upgrades Using the Update Utility ................. 69 12.7.2 Firmware Upgrades Using the Dolby Lake Controller PLM Edition ........71 12.8 Hot swapping PLM devices.......................72 13 TECHNICAL sPECIFICATIONs ........................73 14 WARRANTY ..............................74 PLM Series Operation Manual 5...
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Page 6: Approvals
The mains plug is used as the disconnect device and shall remain readily accessible. If the mains plug is not readily accessible due to mounting in a 19” rack, then the mains plug for the entire rack must be readily accessible. The US National Differencescl.16.3 requires that network cables must be flame rated VW-1. 6 PLM Series Operation Manual... -
Page 7: User Responsibility
3.3.4 speaker damage 3.3.2 speaker output hazard Your PLM Series device is very powerful and PLMs are capable of producing hazardous can be potentially dangerous to both output voltages. To avoid electrical shock, do loudspeakers and humans alike. Many loudspeakers... -
Page 8: Welcome
Limiter (ISVPL) tailors each power output to the Series product, your welcome package includes a characteristics of the connected load. (See section printed copy of the PLM Series Quick Start and Field 7.3.1.) Reference Guide. It contains the basic information... -
Page 9: Smaartlive Integration
It also provides detailed information on set-up and configuration of internal features using the front-panel interface. However, if you intend to use the PLM Series unit(s) as part of networked systems, or access monitoring and control features via the Dolby Lake Controller PLM Edition software application, then you may need to refer to the following complementary documents. -
Page 10: Installation
(AC cord) and its Neutrik PowerCon connector require at least 120 mm (4.75 inches) clear rack depth behind the PLM rear panel. The PLM Series products Carefully open the shipping carton and check for any have no top or bottom vents; PLM’s may be stacked damage to the PLM Series product or the supplied directly on top of each other. -
Page 11: Cooling
Always make sure that the dust filters behind the detachable front panel are clean to ensure maximum possible airflow. PLM Series Operation Manual 11... -
Page 12: Operating Voltage
Analog inputs feature Iso-Float ground isolation, a technology which combines the benefits of Any damage resulting from a PLM Series transformer-coupled isolation with the advantages product being connected to an AC source of clean, direct-coupled inputs. -
Page 13: Plm Series Features
Multicolor LEDs Meter embedded in the soft keys display fault and warning The METER button scrolls through three alternative status indications. views: HOME, MODULE, and TEMPERATURE. PLM Series Operation Manual 13... - Page 14 MENU mode, and the “top” page of the MENU “tree” is displayed. Once in MENU mode, the function buttons enable the user to navigate the menu tree and access most PLM Series operating functions. See sections 9.12.2 to 9.12.8 for more details. soft Function buttons Eight soft function buttons are set adjacent to the display in two groups of four.
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Page 15: Rear Panel Overview
AES/EBU daisy-chained system. to the input connectors to provide an unprocessed The termination may be disabled, if desired, via the analog loopthrough to feed additional PLM Series front panel menu and within the DLC PLM Edition units, or other equipment. -
Page 16: Network Connectors
® permit integration into an Ethernet control network Mains connector encompassing multiple PLM Series units as well as a AC input to the PLM is via a Neutrik PowerCon PC running the DLC PLM Edition software. Network connector, rated at 32 A. -
Page 17: Integrated Dolby Lake Processing
CD in the computer’s CD drive and allowing the auto-setup routine to run. Select INsTALL then Dolby Lake Controller As outlined in Section 4, PLM Series products software from the installation window to initiate contain a fully integrated Dolby Lake loudspeaker installation. -
Page 18: Operation And Performance
The PLM 10000Q can deliver power as per table 7.2.1 when all four channels are driven equally. This chapter provides comprehensive information Load on PLM Series connection, setup, operation and Impedance performance. The detailed information included here (ohms) is essential to realizing the full functionality of the Max. -
Page 19: Amplifier And Load Protection Systems
▸ The amplitude of the output signal “between” encountered. digital samples is predicted. This permits the PLM Series Operation Manual 19... -
Page 20: Current Peak Limiter (Cpl)
Also, high-power products such as those the fault is indicated by the top left soft button’s in the PLM Series can potentially draw more current LED turning steady red, and the adjacent on-screen (with output devices still within safe operating areas) text displaying the fault message TEMP FLT:PsU. -
Page 21: Contents
(42 V with the PLM 10000Q for example). When this situation occurs, the output stage is muted to protect it from damage. Operation of the short circuit protection system is indicated by an output PLM Series Operation Manual 21... -
Page 22: Power Supply
Analog 1/2 Output EQ Module: Phase Rev AES 1 Input Gain Input Mute AES 2 Router Delay Phase Rev Mixer 2 (Mute) Dante X Mute Module Output: Dante Y Gain/Level Output EQ Phase Rev Mute 22 PLM Series Operation Manual... -
Page 23: Signal Flow And Processing 8
Amp Gain LimiterMax Output EQ SpeakerSafe Phase Rev RMS / Peak Phase Rev Mute Attenuator LoadSmart Module Output: Mute ISVPL Amp Gain SpeakerSafe Gain/Level LimiterMax Phase Rev Output EQ Phase Rev RMS / Peak Mute PLM Series Operation Manual 23... -
Page 24: Loudspeaker Processor Configuration
Dolby Lake Controller The PLM includes a dedicated Dolby Lake processing User Manual. system configured with two inputs and six outputs. Each set of processing elements is referred to as a 24 PLM Series Operation Manual... -
Page 25: Modules And Frames
Module data. * designation as seen on DLC PLM Edition This PLM-specific library is called the LoadLibrary Module display. and the data set for a particular speaker type is called that type’s fingerprint. PLM Series Operation Manual 25... -
Page 26: Super Modules
For further information see chapter 6.7 of the Dolby Frame basis, or globally across the entire system of Lake Controller User Manual. networked PLMs. 8.4.1 Module files Once a Module has been configured for a specific 26 PLM Series Operation Manual... -
Page 27: Front Panel Interface 9
In some cases the work area, then the Module scroll bar will place parameter adjustment is presented immediately; in the highlighted Module mid-screen. other cases, intermediate submenus are presented PLM Series Operation Manual 27... -
Page 28: Key Lock Front Panel
Note that the system must be in METER mode for MENU mode is described in full in section 9.12. MUTE ENABLE to be selectable. 28 PLM Series Operation Manual... -
Page 29: Network Activity Led
MENU screens, such as MENU > Module > Limiters In METER mode, pressing the EXIT key will always > ISVPL, permit parameters to be adjusted across all return the display to the HOME view. four output channels simultaneously by default. PLM Series Operation Manual 29... -
Page 30: Soft Function Buttons
3 - see figure 9.6) control the input mutes. Button 2 toggles the input mute of Module A in the Dolby Lake processing system, while Button 3 toggles the input mute of Module B. 30 PLM Series Operation Manual... -
Page 31: Module Output Mute
These mutes are located within the PLM’s power screen and outputs on the right. See section 9.10.1 output stage. Mute Functions for further information concerning Mute operation. When the selected output is muted, the soft button’s PLM Series Operation Manual 31... -
Page 32: Green Indications
All output channels are monitored by a suite of protection circuits that include a Current Peak A detailed description of each warning can be found Limiter (CPL) and an Inter-Sample Voltage Peak in table 11-1. 32 PLM Series Operation Manual... -
Page 33: Warning And Fault Indications
Module Output Mute Channel MOD. OUT MUTE Module Output Mute Amp CH Mute Channel AMP CH. MUTE Amp Channel Mute Analog Input Fault Frame ANALOG IN FAULT Frame Fault: Analog input Table 9b: Red LED Fault/Clip/Mute Table PLM Series Operation Manual 33... -
Page 34: Meter Mode
This indicates that output channels 1 and 2 are driven from Module A and output channels 3 and 4 from Module B. If the processor is configured as a single 4-way crossover, the relationship between inputs and outputs will be indicated as shown: 34 PLM Series Operation Manual... -
Page 35: Meter View 1 - Home View
Module fault or warning, text describing the Line 1 MODULE METERS flag – confirms problem is displayed here. Module view ▸ Line 2 Frame name – displays Frame ident confirming “which PLM this is”. A row of hyphens PLM Series Operation Manual 35... -
Page 36: Meter View 3 - Temperature View
(denoted by ‘MAG’). This parameter is calculated 30° 30° 30° 30° and displayed in a similar way to the voice coil SLOT temperature. 30° 30° 30° 30° 30° 30° 30° 30° 30° 30° 30° 30° Figure 9.12.3: Temperature meter view 36 PLM Series Operation Manual... -
Page 37: Menu Mode
Any offsets in present values are retained. Some of the PLM parameters assume multiple selection as the default setting, so all inputs or outputs are normally adjusted simultaneously. PLM Series Operation Manual 37... -
Page 38: Module Submenu
Attack and Release times must Delaying individual outputs may be desirable to be adjusted individually per channel time-align drivers in the same cabinet or array. 38 PLM Series Operation Manual... -
Page 39: Inter-Sample Voltage Peak Limiter (Isvpl)
0.1 dB increments from -100 dB to 0 dB (which The display shows the current mute status for the is the default setting unless another range has two mute positions as Muted or Not Muted. Soft PLM Series Operation Manual 39... -
Page 40: Input Routing And Settings Submenu
Priority 26.00 dBu 2, and so on until a valid input signal is found. This polling process will also take place if the current Figure 9.13.3.1: Input selection and sensitivity view selected input fails. 40 PLM Series Operation Manual... -
Page 41: Isofloat
PLMs should have its AES/EBU input terminated will digital gain offset (Line 3) for adjustment. be determined by the method used to distribute the AES/EBU signals. Line 3 of each block shows the currently set input PLM Series Operation Manual 41... -
Page 42: Attenuation Submenu
Alternatively, individual channels may be adjusted independently by selecting them one at a time with soft function buttons 5-8. Note that it is not possible Figure 9.12.5.2: Frame Info menu view 42 PLM Series Operation Manual... -
Page 43: Firmware Version ('Fw Version')
9.13.5.2.4 Max Output Current (‘MaxOutCurr’) MAC Addr This displays the maximum output current that can 80:20:8:a6:14: be delivered by the PLM, summed across all four output channels. Frame ID 58000010: fcda7101 Figure 9.13.5.4: Network info menu view PLM Series Operation Manual 43... -
Page 44: Ip Address
PLM automatically introduces additional processing 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. 44 PLM Series Operation Manual... -
Page 45: Configure # Of Cabinets In Parallel
SP.COUNT OK temp SP.COUNT: 1 Analog 1 measure. VC TEMP: 0 NO MODEL Dante Tx 2 SP.COUNT OK Cancel Analog 1 SP.COUNT: 0 VC TEMP: 0 Figure 9.13.7.2: LoadSmart verification view Figure 9.13.8: Dante assignment view PLM Series Operation Manual 45... -
Page 46: Using The Plm As A "Break-In Box
The audio is embedded in the Dante data stream in 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”. 46 PLM Series Operation Manual... -
Page 47: Back Panel Interface 10
The electronically-balanced analog inputs are on method may be employed. See figure 2.2.1b. XLR3F connectors. The Link outputs on XLR3M connectors are directly paralleled to the inputs. All XLRs are wired to IEC268 as follows in figure 10.2: PLM Series Operation Manual 47... -
Page 48: Iso-Float Electronic Balancing
Please read the warnings regarding the may be less than this. See section 12.5 for connection of digital audio signals in section further information on interconnecting digital audio 6.2.1 before attempting to use the AES/EBU equipment. input. 48 PLM Series Operation Manual... -
Page 49: Speaker Output Connections
2 o/p - channel 2 o/p - channel 4 o/p - channel 3 o/p + channel 3 o/p - channel 4 o/p + channel 4 o/p - Table 10.3.1: Speakon wiring and pin out PLM Series Operation Manual 49... -
Page 50: Binding Post Output Connectors
Data activity on the network is indicated mating plugs without the rear covers in place. by illumination of the green ACT LED. It is normal for the ACT LED to flicker either sporadically or continuously. 50 PLM Series Operation Manual... -
Page 51: Appendix 11
LED indication as the operating parameter in question approaches the safety threshold, with the fault state being indicated by the LED turning red when the threshold is actually reached (with a mute being applied in some cases). PLM Series Operation Manual 51... - Page 52 The temperature of the PLM’s processing circuitry has exceeded its safety limit temperature TEMP FLT:MAG Temp Fault: speaker Fault Speaker Magnet temperature The temperature of the speaker magnet estimated fault by SpeakerSafe, has exceeded the manufacturers’ Magnet recommended maximum 52 PLM Series Operation Manual...
- Page 53 WRONG LOAD Load Type / Routing Fault Load type mismatch LoadSmart is measuring load characteristics which differ from those of the assigned speaker type Mismatch Table 11.1: Faults and warnings overview PLM Series Operation Manual 53...
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Page 54: Maintenance
3 years as a purely preventative measure. Router 2 ▸ AES 2 set as Priority 1 ▸ Analog 2 set as Priority 4 Frame/Power Output stage Attenuation: 0 dB Polarity: In phase. Mute: Unmuted Load Model: Not loaded 54 PLM Series Operation Manual... -
Page 55: Current Draw And Thermal Dissipation Specifications
Table 11.4: PLM 10000Q Current Draw and Thermal Dissipation specifications PLM is a trademark of Lab.gruppen AB. Dolby, Lake, and the double-D symbol are registered trademarks of Dolby Laboratories. Copyright © 2007-2008 Lab.gruppen AB. All rights reserved. -
Page 56: Glossary Of Terms, Acronyms And Abbreviations
Various techniques may be employed to ensure that this is the case. Short for Current Peak Limiter, a Lab.gruppen protection technique which ensures that the amplifier’s output transistors can never attempt to deliver more than their rated current. - Page 57 LoadLibrary The Dolby Lake Controller PLM Edition software incorporates LoadLibrary, an additional set of Modules 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 verifying and monitoring amplifier loads.
- Page 58 A Lab.gruppen proprietary protective circuit designed to mute a channel when a short circuit is detected at its output terminals to prevent damage to the amplifier.
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Page 59: I/O Panels
PLM has its own breaker, shared between the two PLMs within the rack. but they all have to operate within the same limit This is beneficial as the two PLMs don’t have to PLM Series Operation Manual 59... -
Page 60: Gain Structure
Normally it The architecture of the PLM Series provides gain should not need to be adjusted by the user. adjustments at a number of points in the signal flow path. -
Page 61: Gain / Level Optimization
This configuration scheme, though unusual, allows for backwards compatibility with other Dolby products. (Set in Lab.gruppen Info, Control tab.) The following details can assist in setting an appropriate gain structure within the PLM. 12.3.1 Gain / Level optimization... - Page 62 Gain Structure: "High SPL - Low noise - Good headroom" 100,0 50,0 Clip -50,0 Nominal -100,0 Noise -150,0 Analog AES Input Input Mixer Module In Module Out Attenuation Analog Ref Amp Gain ISVPL Output -200,0 -250,0 Figure 12.2b: Gain structure: Digital input source 62 PLM Series Operation Manual...
- Page 63 Gain Structure: "Low SPL - Low Input" Application (Low noise with limited output) 80,0 60,0 40,0 20,0 Clip -20,0 Nominal -40,0 Noise -60,0 -80,0 -100,0 -120,0 -140,0 Analog AES Input Input Mixer Module In Module Out Attenuation Analog Ref Amp Gain ISVPL Output Figure 12.4b: Minimizing noise PLM Series Operation Manual 63...
- Page 64 Gain Structure: "High SPL" Application (Moderate noise with very high output) 60.0 40.0 20.0 -20.0 Clip -40.0 Nominal Noise -60.0 -80.0 -100.0 -120.0 -140.0 Analog AES Input Input Mixer Module In Module Out Attenuation Analog Ref Amp Gain ISVPL Output Figure 12.2c 64 PLM Series Operation Manual...
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Page 65: Speaker Configurations
Nominal loads as low as 2 ohms are connection of both digital and analog audio signals, supported within the PLM Series; however, it is important not to confuse the two types. it is important to understand that a 2 ohm... -
Page 66: Interconnecting Digital Audio
Cable types suitable for microphones may of a few milliseconds are usually adequate to achieve have inadequate and unpredictable properties at the coherence between clusters. high frequencies needed for data transmission. 66 PLM Series Operation Manual... -
Page 67: Digital Audio Cabling Recommendations
Thus it is recommended that where possible, do not correct for any inherent jitter (timing errors) users should experiment with cable lengths in in the input signal, and thus should only be used in PLM Series Operation Manual 67... -
Page 68: Digital Clock Configuration
If passive splitters are used, they should be situated as close as possible to the PLMs (or other The available options for configuring the PLM Series devices) connected to their outputs, using cables as digital clock are as follows: short as possible. -
Page 69: Application Guide 12
You can contact your Lab. Power on all PLMs and connect to the PC using gruppen dealer or distributor, or visit the Lab.gruppen a wired network. website for details on available updates: On the PC, go to start >... - Page 70 Frames that require updating or tap “Select old”. 12.7.1c: Firmware update utility step three Wait for all selected PLMs to be upgraded and the information message to appear. 12.7.1b: Firmware update utility step two 70 PLM Series Operation Manual...
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Page 71: Firmware Upgrades Using The Dolby Lake Controller Plm Edition
On the PC, tap OK, then tap Exit to quit the switch the PLMs back on. It is very important to Firmware Update Utility. cycle the mains power in order for the firmware upgrade to take effect. PLM Series Operation Manual 71... -
Page 72: Hot Swapping Plm Devices
It is possible to achive this by using the Replace Frame facility within the DLC PLM Edition software application. See DLC User Manual chapter 7.4.3 for further information. 72 PLM Series Operation Manual... -
Page 73: Technical Specifications 13
Intercooler and Class TD are national and/or international registered trademarks of Lab.gruppen AB. PLM, Powered Loudspeaker Management, R.SMPS, LoadLibrary, LoadSmart, SpeakerSafe and ISVPL are trademarks of Lab.gruppen AB. Dolby, Lake, and the double-D symbol are registered trademarks of Dolby Laboratories. Dolby Lake Processor, Lake Contour, Lake Mesa Quad EQ, LimiterMax and Iso-Float are trademarks of Dolby Laboratories. -
Page 74: Warranty
(6) years from your Lab.gruppen dealer or distributor, or contact date of purchase from an authorized Lab.gruppen Lab.gruppen by fax or email to obtain the location dealer. of the nearest authorized service centre. - Page 75 L a b . g r u p p e n a b • 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 c o n t a c t •...