Getting Started
3-0
Revision 2 - 20 March, 1997
HP SERIES DIMMER
OPERATING MANUAL
3.0
Getting Started
In this manual references to individual front panel controls and LEDs will be in
uppercase bold text, eg.
MODE
, while references to display messages will be in
quotation marks, eg.
“OK”
.
3.1
Connecting power
The mains supply to the HP12-WMTR and HP12-WMSC dimmers must be protected
by upstream circuit breakers or fuses rated at 50 amps or less. Refer to section 8.5.
RACK MOUNTED:
The power plug should be connected to an appropriately rated socket outlet. The
plug’s retaining lock ring (if present) must be screwed home.
WARNING
DAMAGE TO THE PLUG MAY OCCUR IF THE RETAINING LOCK RING
IS NOT PROPERLY SECURED.
WALL MOUNTED:
The power cable is terminated within the dimmer at a labelled six-way terminal block
and a separate earthing block. The supply neutral conductor must be the same size as
the active conductors. The six-way terminal block has three poles for the three live
mains phases (labelled A1, A2, A3), and three poles for the mains neutral (N1, N2,
N3). The three neutral poles are bridged by a copper link, with the incoming mains
neutral connected to terminal A2.
WARNING
CONFIRM THE COLOUR OF THE MAINS NEUTRAL CONDUCTOR AT
THE SUPPLY SOURCE.
ISOLATE POWER AT THE SOURCE BEFORE PERFORMING
CONNECTION.
ALL UNITS:
Turn on the power and check that the three
PHASE
indicator LEDs and the alpha-
numeric display on the front panel are on before connecting any loads. If the
PHASE
LEDs or the display indicate a fault condition, power down and remedy the fault
before trying again. See section 5.5 regarding phase faults.
After initialisation, the display will scroll a message
“DMX START CHANNEL
xxx”
, where xxx is the last programmed DMX Start Channel (between 1 and 512).
After this the display will show whatever it was showing before turning off the power.
If all is well, power down and proceed to the next section.
