Zero 88 Alpha Pack 2

Alpha Pack 2 Owners InformationIntroductionThe Zero 88 Alpha Pack 2 is a 3 channelpower controller capable of driving up to 6.3Amps of lighting control per channel.The total current consumption of the AlphaPack 2 is factory set to a limit of 10, 13 or 16Amps depending on the version.The loads may be resistive or inductive andinclude tungsten, transformer driven lowvoltage and quartz halogen. Some highlyinductive loads such as neon will require aballast load of at least 100 Watts.ControlsInput Signal ConnectorsThe Alpha Pack 2 features both analogue0 to + 10V and DMX 512 Control.AnalogueThe input signal connector is via an 8 pin ringlocking din normally providing 6 channels ofcontrol. The connections are;PinChannel1 12 23 34 45 56 67 Supply Voltage8 0VDMX512The input connector is via a 5 pin male XLRwith loop-through on a 5 pin female XLR.The connections are;PinChannel1 0V2 Data –3 Data +4 Not used (Linked between male and femaleconnectors)5 Not used (Linked between male and femaleconnectors)Analogue Input Channel Selection ChannelSelectionThe position of the switch on the base of theAlpha Pack 2 determines whether the AlphaPack 2 responds to input channels 1, 2 and 3,or channels 4, 5 and 6 of the analogue input,shown by the LED indicator on the front panel.The “Through” connector allows the packs tobe daisy chained together.DMX FeaturesDMX Start address SwitchThis sets the DMX start channel for the pack inincrements of 3 as shown in the followingtable. A small screwdriver or trim tool isrequired to adjust the address settings.Switch Setting Start Address0 11 42 73 104 135 166 197 228 259 28DMX OK LEDOffSlow flashFast flashOnDMX TerminationNo DMX data receivedDMX data errors occurringDMX data is being received, butis not dimmer data (start codenon-zero)DMX dimmer data is beingreceived OK.No termination is provided on the Alpha Pack 2.Termination of the DMX line can be achieved byinserting a termination plug (Zero 88 ordercode: 00-269-00) into the loop throughconnector.

DMX failIn the event of the loss of DMX input, theoutputs will fade to zero over 1 second. Pleasenote that the control values from the analogueinputs and channel faders will continue to bemixed on a highest-takes-precedence basis.Overload SettingsA current detection circuit monitors the inputcurrent to the Alpha Pack 2 at all times toprotect the machine from being inadvertentlyoverloaded.The total current limit for each machine isfactory set as follows;Socket TypeDanishUKCEE 22SwissFrenchSchukoCurrent Limit10 Amps13 Amps13 Amps13 Amps16 Amps16 AmpsShould an attempt be made to overload theAlpha Pack 2, the outputs of all three channelswill be reduced, and the “overload” led will beilluminated.Fusing of Inductive LoadsAll inductive loads (e.g. pinspots, transformerdriven lamps) must be fitted with a separatefuse of the correct value per lamp or fitting.Failure to fit the correct fuse may mean thatany supply disturbances could destroy thelamp transformer. A good earth connection isessential.Desk SupplyMin InputImpedanceEarth Leakage+20V @50mA80kÙ