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Crest Audio Inc.

NexSys v. 3.0

8. NexSys Faults, Alerts & Events

NexSys is always monitoring the system for faults. Faults or alerts are reported on screen
and are sent to the Event Monitor/Log.

8.1 Alert Panels

The bottom of the NexSys window and the bottom of every group window (in list view)
contain panels which illuminate alert icons when a fault is present. Next to each alert icon
is a count representing the number of devices (or amplifier channels) that are experiencing
the fault. For the alert panel at the bottom of the NexSys window, this count is representa-
tive of all devices in the plan. For the alert panels at the bottom of group windows, the count
represents only those devices contained in the group.

Alert Panels (above) and icons (below)

While alerts are “summed” on these alert panels, they are individually represented by the
following icons in list view.

Communications

Thermal Protect

DC Protect

User Thermal Warning

Clip Event

IGM Event

Power Alert - While not a true fault, this alert shows that the CK family amplifier is

off. When this alert appears simultaneously with the Communications alert, it is likely that
the amplifier has no mains power supplied. Power alert is exclusive to CK family of ampli-
fiers. It does not appear on Pro class amplifiers. Power loss in that class is typically indicat-
ed by a Communications alert.

Software Manual

Page 8.1

Communications Alert - NexSys is unsuc-
cessful in its attempts to communicate with
devices showing this fault.

Thermal Protect Alert - amplifier channels with
this alert are in thermal protect.

DC Protect Alert - amplifier channels with this
alert are in a DC protect state.

IGM Alert - Instantaneous Gain Modulation cir-
cuit has activated for amplifier channel with this
fault.

Clip Alert - amplifier channels with this alert
have exceeded their clipping threshold.

User Thermal Protect - amplifier channels with
this alert have heatsink temperatures above
their user-specified threshold.

Содержание NEXSYS - VERSION 3.0

Страница 1: ...V E R S I O N 3 0 V E R S I O N 3 0 Software Manual...

Страница 2: ...Crest Audio Inc 100 Eisenhower Drive Paramus NJ 07652 USA TEL 201 909 8700 FAX 201 909 8744 http www crestaudio com NexSys Software v 3 0 Manual v 1 0 13 August 1997 1997 C4400008...

Страница 3: ...Software Security 2 2 Event Scheduler 2 2 Load Monitoring 2 3 Audio Return 2 3 MIDI Interfaces 2 3 3 NETWORK TOPOLOGY 3 1 3 1 Amplifier Classes 3 1 3 2 Networks Nodes and Buses 3 1 Hubs 3 3 Superviso...

Страница 4: ...g Multiple devices 7 2 7 5 Quickly Opening a group 7 3 7 6 Group Views 7 3 Group List View the Plan Inventory 7 3 Group Console Views 7 4 8 NEXSYS FAULTS ALERTS EVENTS 8 1 8 1 Alert Panels 8 1 8 2 Amp...

Страница 5: ...2 2 13 EVENT SCHEDULER 13 1 13 1 Event Setup and Operations 13 1 13 2 Report Modes 13 2 13 3 Example Application 13 2 13 4 MIDI HEX Programming 13 3 14 MIDI INTERFACE 14 1 14 1 Creating a MIDI Device...

Страница 6: ...nels and icons 8 1 Amplifier Warning Control Window 8 2 Single amplifier control panels 9 1 Amplifier Mute Control Button 9 1 Amplifier Solo Control Button 9 2 Amplifier Polarity Control Button 9 2 Au...

Страница 7: ...control of amplifiers and other devices with NexSys groups Chapter 8 NexSys Faults Alerts Events Covers the various faults or alerts that are reported on screen and to the Event Monitor Log Chapter 9...

Страница 8: ...1024x768 Mouse High density 3 1 2 1 44 MB floppy drive Suggested Option Add a modem with a third party remote control software program such as PCAnywhere or Carbon Copy if you want to control the syst...

Страница 9: ...elected object 1 6 Software Installation The NexSys software is supplied on standard high density 3 5 floppy disks To install NexSys insert the 1application floppy into the drive and select SETUP EXE...

Страница 10: ......

Страница 11: ...er is at network address 8 it would appear as two NexSys devices one for each channel Devices are created by choosing Device New or by using AutoPlan Once created they will appear within the Plan Inve...

Страница 12: ...ifferent scene Another may just contain the snapshot window as a means for simply controlling a complex sound sys tem Scenes can be saved via the scene maintenance window This window is accessed by th...

Страница 13: ...Monitoring Systems configured with optional Load Monitoring hardware allows NexSys to perform diagnostic impedance versus frequency testing of the load on each amplifier channel Audio Return In syste...

Страница 14: ......

Страница 15: ...rvisor main frame and daughter cards Load Monitoring also takes place via an outboard main frame and daughter card unit NexSys controllable signal processing modules are not available with this class...

Страница 16: ...ACL Ch A Ch B CKV 200 Professional Power Amplifier Off Remote On Active Signal Signal AC Protect ACL Ch A Ch B ACL Protect ACL Active Signal Signal Off Remote On Ch A Ch B Professional Power Amplifier...

Страница 17: ...first address is the hub s primary address i e the address of the hub on the primary bus The second address is the address of the node on the secondary bus In the figure the first hub at primary addr...

Страница 18: ...iers Load Monitor Mainframe Pro Class only The Load Monitor is similar to a Supervisor in its transparent nature to the software You specify that an amplifier s outputs are connected to the channels o...

Страница 19: ...ss the twisted pair Crest Audio recommends using Belden 8442 unshielded twisted pair cable with 110 ter minating resistors Other cable may be used however the maximum transmission distance may decreas...

Страница 20: ...hannels CK family Power Processing amplifiers are connected directly to the network there is no need for Supervisors and Load Monitors Each address is set via a hexadecimal rotary selector on the back...

Страница 21: ...so verify that they are set to F HI and 0 LOW Bus Server Card rotary switch locations Carefully insert the Bus Server card into the slot ensuring that the edge connec tor is properly seated and that...

Страница 22: ...witches to the desired address See Appendix C for dip switch settings 2 Press the Reset button on the Bus Server mounting bracket in order for the new address to take effect 3 NexSys must be informed...

Страница 23: ...scenes in this dialog Plan Snapshot Control snapshot control for plan wide snapshots Plan wide Amplifier Control Panel Group Selector allows you to quickly open a group that is in the plan but not on...

Страница 24: ...th a brief description of all menu commands is located in Appendix B 5 3 Right Mouse Menus In many places throughout NexSys right clicking on an object displays a pop up menu relating to that object L...

Страница 25: ...Crest Audio Inc NexSys v 3 0 Software Manual Page 5 3...

Страница 26: ......

Страница 27: ...n file CONVCTR2 NX is used for examples in this manual and press OK A note about directories and plans Most times you will simply save the Plan files nx to the NexSys root directory C NEXSYS Or you co...

Страница 28: ...r devices directly connected to the network including the Bus Server NC NXS modules Hubs Supervisors Load Monitors and MIDI Interfaces Amplifier Search Phase Searches for amplifiers containing the NC...

Страница 29: ...complete save the plan to disk and copy it to the system s PC 6 4 Saving The Plan As with any computer program save your work often especially when making extensive changes To save your plan just choo...

Страница 30: ...ice Setup dialogs Pressing it discards all setup changes made to the device Two parameters are common to all devices the name of the device and its address These items are covered first More specializ...

Страница 31: ...ors Load Monitors MIDI Interfaces and CK family amplifiers The lowest valid node address is 1 for all network devices Note that a Hub address of 0 should be used as a placeholder for devices where no...

Страница 32: ...nimized If you would like your venue to be displayed with a transparent background use cyan as the background color in your bitmap NexSys will replace cyan with the background color of the window i e...

Страница 33: ...from many different points within the soft ware Try starting with a lean plan and gain some operating experience before creating numerous groups It is also possible for a device to be in more than on...

Страница 34: ...button is released Once again with regard to the Plan Inventory all you can do is copy from it Holding the CTRL key down to copy devices from the Plan Inventory is unnecessary Selecting Multiple Devi...

Страница 35: ...e list view This is also the only view the Plan Inventory offers Each device appears as a separate line with an icon rep resenting the type of device its name any relevant parameters any faults and th...

Страница 36: ...muted or soloed and any of seven different faults Sequential turn on devices show their switch position MIDI devices show the last patch change sent NC DSP modules show the current DSP program or alg...

Страница 37: ...module refers to Balloon help alleviates this problem Place and hold the mouse cursor in the title bar of the module and a balloon will appear providing the amplifier s full name address and channel...

Страница 38: ......

Страница 39: ...ications Thermal Protect DC Protect User Thermal Warning Clip Event IGM Event Power Alert While not a true fault this alert shows that the CK family amplifier is off When this alert appears simultaneo...

Страница 40: ...e it is a memory based buffer when the program ends or when it overflows the recorded events will be cleared If you want a permanent record i e saved to disk of events then enable the Event Log Event...

Страница 41: ...rocessor such as Word Wordpad or Notepad You may also use these programs to create additional notes within the body of the file This is helpful in adding system notes to the event file to document suc...

Страница 42: ......

Страница 43: ...d bottom of the fader Pressing the left mouse button on the fader changes the cursor to a hand This indicates that the cursor cannot be moved off of the fader until the left mouse button is released p...

Страница 44: ...can be bussed together and routed to a central control position Since the signal is line level a monitor amplifier and speaker will also be required To enable a channel s audio return press its monito...

Страница 45: ...cussion about how they operate what is said about one applies to the other only their scope is dif ferent Group Plan Level The group plan control is pictured here Notice that the fader ranges from 83d...

Страница 46: ...fader The relative gain changes positive or negative made at the Plan fader will be added to or subtracted from the alpha channel s current gain Control Hierarchy Examples Now assume that alpha is als...

Страница 47: ...amplifier channel However during a performance soloing one amp channel and muting all others is generally not a good thing to do Enabling the solo safety prevents amplifiers from accidentally being so...

Страница 48: ......

Страница 49: ...the Group Snapshot button at the bottom left corner of the group window Right clicking on the snapshot window will open a pop up menu like the one to the left Pressing the Edit button at the bottom o...

Страница 50: ...y adjustments necessary Now select single click the same snapshot and select Update from the pop up snapshot menu either right click to open the menu or push the Edit button The new settings have now...

Страница 51: ...you do not NexSys will load the settings that were in effect when the plan was last saved Edit Snapshot Window 10 6 Recalling Snapshots from Outside of NexSys The Event Scheduler can be used in conju...

Страница 52: ......

Страница 53: ...s serve as the basis for security An administrator can limit access to controls and groups by not placing them in a scene That is only the windows that the administrator adds to a scene can be accesse...

Страница 54: ......

Страница 55: ...an control only those elements that have been placed in the scene by an adminis trator Restricted users cannot open windows 12 2 Security Setup Security for a plan is configured in the Security Admini...

Страница 56: ...lly activate security by selecting the Enable Security checkbox Once enabled you can only access NexSys by logging in with a valid user name and password Be sure to save your plan for security to take...

Страница 57: ...d if any the scheduler window and sev eral command buttons at the bottom To begin working on the scheduler you must first ensure that the scheduler Plan loaded is the Plan you wish to work on Load the...

Страница 58: ...ing a Load Monitor impedance test once a week to ensure proper operation of all speaker lines First load the target Plan with nx file extension Then open a Define Event window by selecting New in the...

Страница 59: ...p window is a box labeled Bus Message Hex It is here that you will enter the hex message to which you want the Event Scheduler to respond You must enter C0 prior to all inbound Hex messages to indicat...

Страница 60: ...are of the format Cn NN Where Cn is the byte containing the channel num ber C0 CF Hex and NN is the byte containing the patch number 00 FF Hex corre sponding to patches 1 256 Any incoming MIDI message...

Страница 61: ...ipment attached to it To add a MIDI device open the destination group window or the Plan Inventory then select Device New MIDI from the menu Setup the MIDI device with the Setup Dialog that appears be...

Страница 62: ......

Страница 63: ...ever there is a major change in the impedance thor ough testing may be necessary to determine where the fault resides within the speaker cir cuit 15 1 Load Monitor Setup for CK family Amplifiers CK fa...

Страница 64: ...ne how the system will respond The reason is very simple the test inserts pure tone into the ampli fier which may result in some very high SPL as compared to dynamic program material Always start with...

Страница 65: ...so any changes that occur which cause the test sweep to indicate failed may be attributable to influences other than transducer breakdown or failure Load monitoring indicates change not the cause of...

Страница 66: ...ed curves will be listed chronologically in the history box just below the grid Double clicking the left mouse button on any of these stored curves will open that test and will display the curve on th...

Страница 67: ...click on the sequential power Device line will open the window for an individual amplifier A double click on the sequential power title bar just above the individual listings will open the window con...

Страница 68: ......

Страница 69: ...nique Signal processing controls for NC modules are setup and displayed in much the same way as other controls described in this section Controls are accessed by double clicking on the Device to be co...

Страница 70: ......

Страница 71: ...2A 74 4A 106 6A 11 B 43 2B 75 4B 107 6B 12 C 44 2C 76 4C 108 6C 13 D 45 2D 77 4D 109 6D 14 E 46 2E 78 4E 110 6E 15 F 47 2F 79 4F 111 6F 16 10 48 30 80 50 112 70 17 11 49 31 81 51 113 71 18 12 50 32 82...

Страница 72: ......

Страница 73: ...nventory window and displays only equalizer devices Sequential Turn On Opens the device inventory window and displays only sequential turn on Control Opens the control window for the Plan Snapshot Ope...

Страница 74: ...group window VU s Only Displays only VU meters in the group window Options Event Monitor Log to file Initiates writing the event monitor information to a file Setup Selects the file name for the even...

Страница 75: ...off on on off free 280 on on off on off EGA 2A0 off on off on off EGA 2C0 on off off on off Serial Ports 2 4 2E0 off off off on off prototype card 300 on on on off off hard disk XT 320 off on on off o...

Страница 76: ...V E R S I O N 3 0 Software Manual 100 Eisenhower Drive Paramus NJ 07652 USA tel 201 909 8700 fax 201 909 8744 h t t p w w w c r e s t a u d i o c o m C4400008...

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