Installation Instructions - Clipsal

Intelligent Building SeriesC-Bus 12 Channel Professional Architectural Dimmer Installation Instructions6.16 Channel Line VoltageThe output of each channel may be limited in a range 50..220 Volts. Monitoringthe line voltage for each phase, and compensating for any changes in linevoltage achieve this control. This control is accurate to ± 10%. That is, an outputline voltage of 110V is selected then the dimmer may generate a voltage inrange 99 to 121 volts. If the channel output voltage is measured, then a TrueRMS type voltmeter must be used, as the AC waveform is chopped. Be awarethat this is an electronic control. Should a power device short circuit, the loadcould be subject to the actual line voltage and may suffer some damage. Inaddition, if the C-Bus 12 Channel Professional Architectural Dimmer is subjectto electrical noise it may falsely trigger the power devices. In this case the loadwill be subject to transient voltage for a short period of time, and will probablynot suffer damage.Note that if a channel line voltage is selected that is greater than the actual linevoltage, the maximum output of the channel can only be the local line voltage.To view a channel line voltage when ACL is displayed in the display press theSET button. All 12 channel LEDs will flash. Press a channel button to view thechannel voltage for that channel. Press CONTROL to return to the main menu.To change a channel voltages press the SET button whilst a channel voltage isbeing displayed. The century digit will flash. Press a channel button in the range1..9 or 0, or press the SET button to leave the current value. Repeat for the tensand units values. Press the CONTROL button at any time while a digit isflashing to cancel the change.You may enter a number in the range 50..220 volts. Entering a number higherthan 220 will set the output to track the line input, and show “LIN” on thedisplay. For normal usage each channel should be set to “LIN”.The output current will automatically adjust to fit the selected output voltage.6.17 Viewing and Setting the Channel PatchThe C-Bus 12 Channel Professional Architectural Dimmer can patch individualchannels to any DMX input channel available. That is, it determines which DMXinput channel is used to control a specified dimmer channel On the C-Bus 12Channel Professional Architectural Dimmer a dimmer channel may only beassociated with one DMX input channel.To view the channel patch when PAT shows in the display, press the SETbutton. All 12 channel LEDs will flash. Press a channel button to view the patchfor that channel. Press CONTROL to return to the previous menu.To change a channel patch, press the SET button whilst a channel patch isbeing displayed. The century digit will flash. Press a channel button in the range1..9 or 0, or press the SET button to leave the current value. Repeat for the tensand units value. You may press the CONTROL button at any time while a digitis flashing to cancel the change.You may enter a number in the range 1..512.© Copyright 2003 Clipsal Integrated Systems Pty Ltd. Page 21