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Dimmer Operation 4-15
Revision 2 - 26 April, 2000 HP SERIES DIMMER TECHNICAL MANUAL
4.3 Channel disable
When the dimmer is in normal operating mode (“OK” showing on the display), any
channel may be taken off-line by pressing its SELECT button. Pressing the button a
second time will bring that channel back on-line.
The STATUS LED will be on (red or green) for all active channels, and be off for all
disabled channels.
Any disabled channel(s) may still be selected and tested with the TEST function (see
section 4.1.9). Once the tests are complete and the dimmer is back in normal operating
mode, the channel(s) will resume their status prior to being tested.
4.4 Software update
The operating software of the HP dimmer may be updated via the front panel DMX input
connector. To achieve this requires the following:
•
HP dimmer
•
HP download kit
•
IBM compatible Laptop or desktop computer
To update the software, perform the following:
1. Switch the dimmer power off.
2. Connect the computer serial/COM port to the DMX input of the dimmer, using
the download cable supplied in the download kit. Disconnect any DMX
terminators.
3. Press and hold the ENTER button on the dimmer while turning on power to
the dimmer. Later versions of dimmer software have a “confirm” stage to
prevent unintended downloads. If the dimmer displays “CFRM”, press the
MODE button on the dimmer keypad.
4. On the PC, start the download process by typing “download hp2_2<enter>”.
The dimmer keypad LEDs will chase while the download proceeds – this takes
approximately 40 seconds. When the download is complete the dimmer display
blanks while the data is programmed into the FLASH memory, and the dimmer
restarts.
The software update facility should be used with the following notes and cautions:
•
The dimmer must be Deep Cleared (refer section 4.2) and Calibrated (refer section
4.1.4.8) after downloading new operating software.
•
It is recommended that dimmer software not be updated during a tour/show season,
unless the installed software proves unsatisfactory for normal operation.
•
More than one dimmer may be updated at a time using normal DMX cables to link the
DMX Loop connector of the first dimmer to the input of the next, etc. In this case
step 3 must be repeated for each dimmer, before proceeding to step 4.
•
Refer to the instructions supplied with the download kit for further details.