Rev. 3.0.4 Item no.
1. Important safety instructions 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. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 2 Read these instructions. Keep these instructions Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings.
1. Important safety instructions 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 complètement l’équipement de l’alimentation générale, démonter le câble d’alimentation de son réceptacle. La prise d’alimentation restera aisément fonctionnelle. To reduce risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Table of Contents 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 3.4. Operating Voltage 10 3.5. Grounding 11 4. Product Overview 12 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 18 5.
Table of Contents 7.4. Mute Enable Button 35 7.5. Meter Button 35 7.6. Menu Button 35 7.7. Exit Button 35 7.8. Dynamic Buttons, Controls and LEDs 36 7.9. Warning and Fault Indications 41 7.10. Meter Mode 43 7.11. Menu Mode 47 8. Back Panel Interface 61 8.1. Speaker Outputs 61 8.2. Analog Inputs 64 8.3. AES3 Digital Inputs 66 8.4. RJ45 etherCON Network Connections 66 8.5. Power Inlet 68 9. Appendix 69 9.1. Faults and Warnings Overview 69 9.2. Maintenance 72 9.3.
2. Introduction 2. Introduction 2.1. Welcome Thank you for choosing the Lab.gruppen PLM+ Series of Powered Loudspeaker Management systems for your For fast installation and use of this product, your welcome package includes a printed copy of the PLM+ Series Quick Start Guide which contains the information required to safely install the product and place it in service. Control and editing features are accessible via the front panel interface or via the included Lake Controller software.
2. Introduction 2.2.2.1. Amplifier Gain software or front-panel interface. ces, and may be controlled via the Lake Controller 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 for some loudspeaker presets in the Lake LoadLibrary.
3. Installation 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 For complete information on DSP configuration and operation using Lake Controller, please refer to the Lake Controller Manual, available online at www.labgruppen.com/support.
3. Installation 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 rear of the rack. Figure 3.2 and Figure 3.3 show the fitting options for fixed and removable installation.
3. Installation 3.3. Cooling 3.3.1. Overview direction. space to allow air to escape. If the PLM+ is rack-mounted, never operate the unit with any front or rear rack doors or covers in position. It is recommended to keep the ambient temperature around the PLM+ as cool as possible. inside the PLM+. NOTE: Fit solid blanks (not ventilation blanks) to unused rack spaces to ensure effective air circulation. Leaving gaps in between items of equipment degrades the effectiveness of forced-air cooling.
3. Installation 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: powerCON pin 230 V Cable 115 V Cable L Brown Black N Blue White Green/Yellow Green Table 3.1: AC Plug Configuration If you are not 100% confident of your competence to replace the mains plug (AC plug), the task should be carried out by qualified personnel.
4. Product Overview 4. Product Overview 4.1. Front Panel Overview The front panel presents the following amplifier status indicators: 1 2 4 10 2 1 3 5 11 6 7 8 9 12 The front panel controls are clustered around a daylight readable LCD 3 , allowing adjustment and monitoring of the majority parameters and meters.
4. Product Overview 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 bu a subsequent press deselects this mode. If left activated, MUTE ENABLE mode will automatically disable two minutes after the last mute action. 5 Meter Meters View, Temperature Meters View, Input Meters View and Module Meters View. Pressing METER from Menu Mode returns the screen to Meter Mode with the Home View displayed.
4. Product Overview 4.2. Rear panel 3 1 1 3 INPUT 1 SPEAKER OUTPUTS INPUT 2 2 4 INPUT 3 INPUT 1-2 INPUT 4 5 INPUT 3-4 1Gbps PRIM 6 5 ACT 1Gbps SEC LINK ACT 100-240V LINK 2400-2950W 50-60Hz CH 3 BRIDGE BRIDGE CH 1 7 CH 2 CH 4 ANALOG WITH I SO- F LOAT TM PIN 1: SCRN 2: POS 3: NEG SWITCHED 00/10001 Base-TX AES/EBU Made in Sweden CLASS 3 WIRING Ser.
4. Product Overview Ethernet and Power Connectors 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 control of all functions along with real-time metering from a remote position. This device supports the Dante audio networking protocol for multichannel, high-definition digital audio over the same Ethernet connection.
5. Operation and performance 5. Operation and performance 5.1. Operation precautions Make sure that the Standby button on the unit’s front panel is either unlit (OFF), or red (STANDBY), before making any input or output connections. Ensure the AC voltage is within the range printed on the label adjacent to the AC mains connector. Ensure no input signal is present when powering on the unit to reduce the risk of any inadvertent bursts of high level audio. 5.2.
5. Operation and performance Desired power can be specified in several domains: burst and peak power; peak and RMS voltage; and also the speaker’s AES power rating. By specifying the nominal impedance of the load, the RPM algorithms have all input data required to calculate resulting RPM settings. If the desired RPM settings taken together allow total output higher than the capabilities of the amplifier, RPM will reduce actual RPM configuration evenly based on a proportional reduction in dB.
5. Operation and performance 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 Specification Predictor (ESP), a software module that examines SPL and speaker requirements for a project and generates requirements for output power on an amplifier and system level.
5. Operation and performance Table 5.3 shows the theoretical maximum output power for a given load impedance and ISVPL setting. Max. Sinewave Burst Power (Watts) LLoad Impedance (ohms) 2 2.
5. Operation and performance 5.3.3. Power Average Limiter (PAL) The Power Average Limiter Active warning (PAL Active) will be displayed when the power supply’s maximum rated design parameters are reached. When this warning is displayed, gain limiting is being applied to the output signal and the ISVPL threshold is lowered accordingly. PAL activity is shown by flashing yellow on the frame LEDs and a corresponding text description on the front and in Lake Controller and CAFÉ software programs.
5. Operation and performance 5.3.6. Current Average Limiter (CAL™) The Current Average Limiter (CAL) monitors the RMS current drawn from each power output channel to ensure that the power output stages are not overloaded. When activated, it regulates the current to a safe level to protect the channel. The CAL should not be activated in normal usage.
5. Operation and performance Limiter (ATL) is engaged, reducing power output to avoid amp channel protection (muting). Limiting is removed when temperature falls below the warning threshold. 5.3.8.3. Power Supply / DSP A power supply (PSU) or DSP temperature warning or fault is indicated by flashing Frame LEDs.
5. Operation and performance Trigger voltage 100 90 Voltage [Vrms] 80 70 60 50 40 30 20 10 0 0 5 10 15 20 25 30 Frequency [kHz] Fig 5.4: VHF Protection Frequency Sensitivity The attack time of the VHF protection circuitry also changes with frequency, becoming shorter at higher frequencies. This is shown in Figure 5.5. Full output voltage 1400 1200 Time [ms] 1000 800 600 400 20 200 0 0 5 10 15 20 25 30 Frequency [kHz] Fig 5.
5. Operation and performance 5.3.12. Power supply protection The power supply is very advanced and has several internal control and monitoring functions. Should any of these fail, the power supply will shut down to prevent damage or limit severity of the failure. Power supply faults, or power supply needs service faults, are indicated by flashing red on the frame LEDs and a corresponding text description on the front panel, in Lake Controller and CAFÉ software programs. Refer to section 9.
5. Operation and performance 5.4.1. Low Inrush Current High power amplifiers with inadequate inrush current limiting can draw considerable current from the mains at turn–on, sometimes tripping a fast–acting mains breaker. The PLM+, however, has very low inrush current to prevent tripping of breakers. Several units can, under normal conditions, be powered up simultaneously.
5. Operation and performance • If there are one or two “spurs” with 70V loudspeakers connected; if two in parallel is default, it will warn if one is missing. • If there is a short circuit in the load. • If there is an open circuit (all loudspeakers missing). • For passive 2– and 3–way loudspeakers, if one or two LF drivers are connected and working; if two in parallel is default, it will warn if one is missing. • For some passive 2–way designs, if one HF driver is disconnected.
Notes 5. Operation and performance ersions 1.1.0. and later. For detailed program and to the CAFÉ Coach videos posted on the Lab.gruppen web site and on the Lab.gruppen channel on YouTube. 5.5.4. Indication The LoadPilot feature constantly monitors the impedances at the two given pilot tone frequencies and compares to the measured thresholds. The following faults and warnings can be triggered. • Speaker shorted warning – Both tones below lower threshold.
5. Operation and performance 5.6.1. Dante The PLM+ support dual redundant inputs and outputs on Dante, in either 48 or 96 kHz, with receive latency as low as 0.25 ms and up to 5 ms. Dante devices and channels can be given “friendly” names, meaning audio can be routed without having to use or remember complex numbers. Dante channels can be routed in Dante Controller or in Lake Controller. 5.6.2.
6. Signal Flow and Lake® Processing 6. Signal Flow and Lake® Processing 6. Signal Flow and Lake® Processing 6.1. Signal Flow device provides seven points in the signal chain where the signal level can be adjusted, muted or disconnected. The blue sections represent Frame data, and the red sections represent Module data - please refer to the Lake Controller Operation Manual for further information. Important information regarding correct setting of the gain structure can be found in section 10.2.
6. Signal Flow and Lake® Processing 6. Signal Flow and Lake® Processing 6.2.
6. Signal Flow and Lake® Processing 6. Signal Flow and Lake® Processing 6.3. Lake Processing and Control As outlined in section 2.2.3, this device integrates seamlessly into the Lake Processing environment, providing all features, functionality and connectivity associated with all Lake Processors. The internal Lake Processing includes programmable crossovers, EQ, dynamics and other functions, and can be fully controlled via the Lake Controller software with a version number of 6.3 or later.
6. Signal Flow and Lake® Processing 6. Signal Flow and Lake® Processing 6.5. Loudspeaker Processor Overview The Lake Processing system within PLM+ Series devices may be configured with up to four processing Modules containing a total of up to twelve processing Module outputs, that can be routed to any of the four power output channels. Each set of processing elements is referred to as a Module and can be configured as crossovers, full bandwidth auxiliary outputs, or a combination of the two.
7. Front Panel Interface 7. Front Panel Interface 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. 1 2 4 10 2 1 3 5 11 6 7 8 9 12 7.1. Overview The front panel interface is framed by two sturdy cast aluminium handles 1 and metal grill protecting the air intake and dust filters 2 .
7. Front Panel Interface 7. Front Panel Interface 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 module in the Lake Controller software: 1. Ensure Meter Mode is selected and in Module view. 2. Press the button adjacent to the Module description on the left LCD.
7. Front Panel Interface 7. Front Panel Interface 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 will flash and the four buttons on the left act as Module or Input Router mute controls (depending on active view) and the four buttons on the right enable muting/unmuting of the Amplifier Channel (power outputs).
7. Front Panel Interface 7. Front Panel Interface 7.8. Dynamic Buttons, Controls and LEDs B A C D 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 confirmation of: 1. Network communication between the Lake Controller and the Lake Processor (Flashing LED). 2. Selection of the Lake Processor in the Lake Controller software (Steady LED).
7. Front Panel Interface 7. Front Panel Interface 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 is available for adjustment. Turn the encoder clockwise to increase the selected parameter, or counter-clockwise to decrease the value. Parameters with only two states (e.g.
7. Front Panel Interface 7. Front Panel Interface 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. 2. 3. 4.
7. Front Panel Interface 7. Front Panel Interface 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 channels is muted. Module Input Mutes may also be controlled in Menu Mode. Please refer to the Lake Controller User Manual for details of mute selection via the software. 7.8.4.4.
7. Front Panel Interface 7. Front Panel Interface 7.8.5. LED Fault, Warning and Clip Indication B D A tricolor LED is embedded inside each of the eight dynamic function buttons. The LEDs convey a variety of status indications including faults and warnings, signal clip indications, Module input mute, Module output mute and Power Output mute. Table 7.4 summarizes the meaning of the LED indications.
7. Front Panel Interface 7. Front Panel Interface 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 an on-screen description of the condition displayed adjacent to the LED/s. • • • A red LED indicates a fault, clip or mute for further information the Event Log. Please refer to Table 9.
7. Front Panel Interface 7. Front Panel Interface On Screen Warning Text Type LED No. Warning Event Log Text AMP CH.
7. Front Panel Interface 7. Front Panel Interface 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 gain reduction, along with frame, module and channel labeling information. The example in Figure 7.
7. Front Panel Interface 7. Front Panel Interface Note: Output limiter (gain reduction) meters take into account the sum of PLM+ ISVPL and Lake LimiterMax. l to which each module output is routed. When 10 mode or Bridge Mode, as shown in Figure 7.8 For further information on Bridge Mode, please refer to section 8.1.1. Figure 7.
7. Front Panel Interface 6 7 8 9 7. Front Panel Interface LoadPilot Status: 1. High Freq Pilot tone Enabled/Disabled, 2. Low Freq Pilot tone Enabled/Disabled, Status LoadPilot Status: 1. High Freq Pilot tone Enabled/Disabled, 2. Low Freq Pilot tone Enabled/Disabled, Status LoadPilot Status: 1. High Freq Pilot tone Enabled/Disabled, 2.
7. Front Panel Interface 7. Front Panel Interface 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 Input Connection status. Figure 7.
7. Front Panel Interface 5 6 7 8 9 7.
7. Front Panel Interface 7. Front Panel Interface 7.11.1.1. Parameters with Individual Values and Group Totals The following parameters display two values: • • • • MODULE MODULE MODULE MODULE > > > > GAIN DELAY LIMITERS > MAXRMS LEVEL LIMITERS > MAXPEAK LEVEL The Module parameter can be adjusted using the rotary encoder. The Group total (shown in brackets) is only adjustable using the Groups function in the Lake Controller.
7. Front Panel Interface 7. Front Panel Interface • 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 to all module output configurations described below. MENU > MODULE After selecting the Module Menu, the screen shown in Figure 7.14 is displayed.
7. Front Panel Interface 7. Front Panel Interface 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 may be adjusted simultaneously in 0.1 dB increments, subject to defined level limits. 7.11.2.
7. Front Panel Interface 7. Front Panel Interface 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 the gain of the PLM+’s power output stage for each output channel. The default setting is 35 dB, variable in 0.1 dB increments from 22 dB to 44 dB.
7. Front Panel Interface 7. Front Panel Interface 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) for each channel. MaxRMS Corner (MaxRMSCor) A soft-knee or hard-knee corner may be applied to the RMS Limiter.
7. Front Panel Interface 7. Front Panel Interface 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 sections. 7.11.3.1. Input Router Configuration MENU > I/O CONFIG > ROUTER Figure 7.18: Input Router 1 The signal flow diagrams in section 6 highlight that there are four Input Routers available on PLM+ Series devices.
7. Front Panel Interface 7. Front Panel Interface With a router selected on the front panel, press the middle button on the left of the LCD to activate this parameter for editing.
7. Front Panel Interface 7. Front Panel Interface 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 one DA output per processor, then all terminations should be on. However, if the AES3 is daisy-chained, only terminate the last PLM+ device in the chain. 7.11.3.3. Iso-Float MENU > I/O CONFIG > ISO-FLOAT Figure 7.
7. Front Panel Interface 1 2 3 4 5 6 7 8 9 7. Front Panel Interface Toggle the Source from which you want to route the channels (Module, Analog, AES) (NOTE: that this also may affect the destination, as only AES3 and analog can be routed to Dante.
7. Front Panel Interface 7. Front Panel Interface 7.11.5.1. Frame Info MENU > FRAME > FRAME INFO Firmware Version (FW Version) Further internal version numbers are displayed on right side of screen; Bundle, DSP, FPGA and Safe Image version. Serial Number (Serial No.) The printed serial number on the back panel of the PLM+ is also electronically embedded in the hardware, and therefore cannot be removed or altered if stolen.
7. Front Panel Interface 7. Front Panel Interface 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 then use the rotary encoder to change the parameter. The maximum RMS input current varies, and therefore a desired value is configured and the actual value is displayed within brackets. 7.11.5.4.
7. Front Panel Interface 7. Front Panel Interface 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, select this option then use the rotary encoder to change the value.
7. Front Panel Interface 7. Front Panel Interface 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 from 1 to 4. This value is used by LoadSmart to confirm the correct connection and status of the speakers connected to each PLM+ channel. 7.11.8.2.
8. Back Panel Interface 8. Back Panel Interface 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.
8. Back Panel Interface 8. Back Panel Interface 8.1.2. speakON Connectors Power outputs are available simultaneously on a single 8-pole connector (PLM 20K44 and PLM 12K44 only) and on two 4-pole connectors. The four-pole connectors carry outputs for channels 1&2 and 3&4 respectively. For PLM 5K44, connector 1 carries output channels 1 and 2, connector 2 carries channel 2, connector 3 carries channel 3 and 4, and connector 4 carries channel 4. PLM 5K44 Ser.
8. Back Panel Interface 8. Back Panel Interface 4+ 41+ 31- 3+ 22+ 1+ 2- Must be grounded/ earthed 100-240V 2400-2950W 3+ 4- NL4 PLM+ Output Channels 1 & 2 NL8 PLM+ Output Channels 1 - 4 NL4 PLM+ Output Channels 3 & 4 8.1.3. Binding Post Connectors SPEAKER OUTPUTS CH 3 BRIDGE BRIDGE CH 1 CH 2 CH 4 CLASS 3 WIRING SPEAKER OUTPUTS CH 3 BRIDGE BRIDGE CH 1 CH 2 CH 4 CLASS 3 WIRING 62 PLM+ SERIES Operation Manual rev 3.0.4 PLM+ SERIES Operation Manual rev 3.0.
8. Back Panel Interface 8. Back Panel Interface 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 the speaker wires and plug into the center of the turrets. 2. Thread the stripped ends of the wires through the holes in the posts. Enter the wires for output channels 1 and 3 from above and for channels 2 and 4 from below.
8. Back Panel Interface 8. Back Panel Interface 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. 2 HOT HOT COLD COLD SCRN Unbalanced Output (Typically phono) 1 3 SCRN Balanced Input (XLR) Figure 8.10: Balanced to Unbalanced Analog Wiring and Pin Out The method shown in Figure 8.
8. Back Panel Interface 8. Back Panel Interface 8.3. AES3 Digital Inputs 8.3.1. AES3 XLR Connector 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 connections as shown section 8.2.2. The AES3 signal format carries two channels of audio and associated data on a single cable/connector.
8. Back Panel Interface 8. Back Panel Interface Pin No. Color 1 Brown 2 Brown + White 3 Green 4 Blue + White 5 Blue 6 Green + White 7 Orange 8 Orange + White 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 indicated by illumination of the green ACT LED.
8. Back Panel Interface 8. Back Panel Interface 8.5. Power Inlet 8.5.1 Power Connector 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-fitted, but may require a mains (AC) plug specific to your country to be fitted to the other end. The wiring an pinout details are shown in Table 8.2.
9. Appendix 9. Appendix 9. Appendix 9.1.
9. Appendix 9. Appendix Category/Type Name On screen text Description Action The Under Voltage limiter is active as the mains supply is approaching the lower end of the device´s operational voltage.
9. Appendix 9.
9. Appendix 9. Appendix 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. T turning the unit back on. In extreme cases it may be necessary to clean the inside of the device. This procedure should only be carried device has had prolonged operation in an extreme environment such as one where cracked oil smoke machines are in use.
9. Appendix 9. Appendix 9.3.2. Input and Router Defaults Autoselect: Input sensitivity: Dante: AES3: Iso-Float: On +26 dBu Disabled Terminated Enabled Router 1: Priority 1 = Dante Receiver (Ch.1) Priority 2 = Dante Receiver (Ch.5) Priority 3 = AES1 (Ch.1) Priority 4 = Analog 1 Router 2: Priority 1 = Dante Receiver (Ch.2) Priority 2 = 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.
9. Appendix 9. Appendix 9.4. Current Draw and Thermal Dissipation Specifications different operating conditions for each PLM+ Series device. 1. 2. 3. 4. 5.
9. Appendix 9. Appendix PLM 12K44 Level Load Rated power per channel Line Current Power Factor (A) (%) Measured Power (W) In Out Thermal Dissipation Dissipated BTU/hr kCal/hr Mains Voltage 100 VAC, 30 A Standby 0.3 43 12 0 12 40 10 Power on, Idling 2.3 98 219 0 219 749 189 503 Pink Pseudo Noise LoadPilot Sine 20 kHz 16 Ω / Ch. 950 10.8 99 1059 475 584 1994 8 Ω / Ch. 1900 19.2 99 1868 949 919 3136 791 4 Ω / Ch. 3000 24.6 99 2389 1200 1189 4057 1023 2.
9. Appendix 9. Appendix PLM 20K44 Level Load Rated power per channel Line Current Power Factor (A) (%) Measured Power (W) In Out Thermal Dissipation Dissipated BTU/hr kCal/hr Mains Voltage 100 VAC, 30 A Standby 0.3 52 17 0 17 58 15 Power on, Idling 2.4 97 235 0 235 802 202 Pink Pseudo Noise LoadPilot Sine 20 kHz 16 Ω / Ch. 1150 12.1 99 1192 588 604 2061 520 8 Ω / Ch. 2300 22.3 99 2198 1174 1024 3493 881 4 Ω / Ch. 4400 29.
9. Appendix 9. Appendix 9.5. Glossary of Terms, Acronyms and Abbreviations The explanations given in Table 9.5 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. Term Description Floating Frame such as that found in the PLM+ - do mimic the characteristics of transformer-coupled designs to a high degree. Lake terminology for a physical unit containing a Lake processing system, i.e.
9. Appendix 9. Appendix Term Description Online A device on an Ethernet network which is fully operational and communicating with the rest of the network is said to be online. PAL drawn by the PSU from the AC mains does not exceed the mains breaker ratings. Parallel Two or more e.g. inputs which are wired together so that all inputs are connected to the same source are said to be paralleled.
10. Application Guide 9. Appendix 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 at one position, without requiring rear panel access. 10.2. Gain Structure The PLM+ Series architecture provides gain adjustments at various points in the signal path for enabling muting and level adjustment.
10. Application Guide 10. Application Guide 10.2.4. Module Output Gain Factory and User Gain are provided for each Module output. These two stages provide a level of security and control for the system designer (Factory) and a further level of adjustment for the user (User), both of which 1. Factory Gain is set by the system designer and can be hidden wi parameter is only accessible when the Module is unlocked and the Lake Controller is in Designer Mode.
10. Application Guide 10. Application Guide 10.3.2. Minimize Noise To help provide the best volume to noise ratio, use an AES or Dante digital input signal wherever possible. If using analog inputs, ensure that unused or unnecessarily high headroom is not introduced at the input to the device. If full or high average power is not required, the Module input gain may be reduced. 10.3.3.
10. Application Guide 10. Application Guide The improvement in noise performance (at the cost of losing headroom and compression features) is only 0.6 dB; it is therefore not recommended to optimize performance in this manner. 10.3.3.2. Analog Input Gain Structure Examples Figure 10.4 illustrates how to minimize absolute noise while limiting the available SPL. Input Clip: 12 dBu • • • • Amp Gain: 22 dB SNR: 105.5 dB Absolute Noise Floor: -71.5 dBu SPL is limited to -8.
10. Application Guide 10. Application Guide Figure 10.6 illustrates how moderate noise with extreme SPL can be achieved. SPL is extremely high in this example as maximum headroom is available at the input and within the processing stage. This makes it possible to increase the average SPL by utilizing internal compression capabilities. • • • • Input Clip: 0 dBFS Amp Gain: 35 dB SNR: 114.2 dB Absolute Noise Floor: -71.3 dBu 60.0 40.0 20.0 dB/dBu 0.0 -20.0 Clip -40.0 Nominal -60.0 Noise -80.0 -100.
10. Application Guide 10. Application Guide 10.5. Digital Audio Connections Whenever possible, it is preferable to connect a digital rather that analog input signal to the device. This is particularly relevant if the source signal is already in the digital domain, such as the source from a digital mixing console or digital distribution system. The primary cause of signal distortion and signal delay (latency) is the digitalto-analog and analog-to-digital conversion process.
10. Application Guide 10. Application Guide 10.5.3. Connections and Cabling 10.5.3.1. AES Input Connectors Two AES-3 input signals (each carrying two audio channels) are connected to the XLR3F connectors labelled INPUT 1-2 and INPUT 3-4 in the AES/EBU (AES-3) input section on the rear panel. Note that the Input connector types are identical for the analog and digital inputs, so care must be taken when connecting audio, particularly when analog inputs are used as a backup signal source.
10. Application Guide 10. Application Guide It is recommended that all cables be tested for error-free performance at lengths 20% to 25% greater than lengths 10.5.4. External Signal Distribution Hardware 10.5.4.1. Distribution Amplifiers format is one input and six outputs. Digital distribution ampli as well making up for line losses. times the signal to prevent signal degradation from clocking errors known as jitter. small additional amounts of latency, so should not be used unless necessary. 10.5.4.
10. Application Guide 10. Application Guide 10.6. Digital Clock Configuration 10.6.1. Digital Clock Overview clocking system. The digital clock can generate various independent internal sample rates, or can sync to an incoming AES3 signal. Figure 10.7 shows the various sample rates and options available.
10. Application Guide 10. Application Guide For Automatic Detection, the most appropriate clock matching the selected base-rate is automatically selected according to the following priorities. 1. AES1 (Input 1+2) 2. Internal Clock When using automatic detection, the AES3 digital input is monitored and will switch the clock source back and forth depending on the availability of an AES3 signal. Please refer to the Lake Controller Operation Manual for additional information. 10.6.3.
11. Technical Specifications 11. Technical Specifications 11. Technical Specifications General Processing / Network Numbers of amplifier channels Total burst power all channels (share among channels with RPM) P L M 5 K4 4 PLM 12 K4 4 P L M 2 0 K4 4 Lake / Dante 4 5000 W 120 0 0 W 20 0 0 0 W Max. Output Power (all ch.’s driven) 1) 2 ohms 2.
11. Technical Specifications 11. Technical Specifications Amplifier gain Digital at tenuator Rear-panel interface A n a l o g i n p u ts AES inputs Output connectors Auto 10 0/10 0 0, Auto Uplink Control and monitoring inter face D et a c h a b l e m a i n s c o rd Cooling Front-panel interface P L M 5 K4 4 22 - 44 dB, step size 0.1 dB - Inf to 0 dB, step size 0.
12. Warranty and Support 12. Warranty and support 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 ten (10) years from date of purchase from an authorized Lab.gruppen dealer. If the product fails to perform as specified during the warranty period, Lab.
12. Warranty and support 12. Warranty and Support 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 the original packing. 2. Include a copy of the sales receipt, your name, return address, phone and fax number, email address and description of the defect. 3. Mark the Return Authorization number on the outside of the packing.
12. Warranty and support PLM+ SERIES Operation Manual rev 3.0.
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. Raised Cosine Equalization, LimiterMax and Iso-Float are trademarks of Dolby Laboratories. Audinate is a registered trademark of Audinate Pty Ltd. Dante and Zen are trademarks of Audinate Pty Ltd.
