Dimmer Operation 4-2
Revision 2 - 26 April, 2000 HP SERIES DIMMER TECHNICAL MANUAL
• “TERM” - DM X input termination
• “CHEK” - display dimme r o perating parameters
• “V.COM”- enable/calibrate voltage compensation
• “LOCK” - lock dimme r functions
To select an option, rotate the FUNCTION encoder wheel until the desired option is
displayed, then press the ENTER keypad butt on to confirm the selection.
4.1.4.1 “VOLT” - Voltage selection
(
Figure 4.1A
Any or a ll of t h e d imme r cha n nels ma y be c u s to mis e d to g ive eithe r 240, 120, o r 60
vo lt o ut pu t. This feat ur e is use ful fo r c ont r olling indiv idua l 120 volt loads, such as
single PAR 64 (120) lamps, Leko (FEL) or other 120 volt lamps (120V), o r series
pairs of ACLs (60V).
• Once the VOLT option has been selected, use the FUNCTION encoder wheel
to select either “240V”, “120V”, or “60” and press ENTER.
• If “240V” is se le ct e d , t he d isp la y w ill st op fla s hing a nd w ill s c r o ll t h e fo llo w ing
message: “SELECT CHANNELS FOR 240V”.
• If “120V” is se le ct e d , t he d isp la y w ill st op fla s hing a nd w ill s c r o ll t h e fo llo w ing
message: “SELECT CHANNELS FOR 120V”.
• If “60V” is sele ct ed, t he d ispla y will st o p fla shing and will s cr oll t he fo llow ing
message: “SELECT CHANNELS FOR 60V”.
• Press the SELECT butto n on t he channel to be changed. The STATUS LED o f
t h e channel(s) selected will change colour to orange.
• Once all the required channels are selected, press ENTER t o make the changes.
The channel STATUS LE D(s ) w ill sho w g ree n fo r t ho se c hann el(s ) s et t o 240
volt output, and red for t hose channel(s) set to 60 or 120 volt output.
• The display will then show “OK” to indicate the dimmer is now in normal
operat ing mode with the selected changes implemented.
CAUTION
SELECTING A 60 or 120 VOLT LAMP TO 240 VOLT
OPERATION CAN CAUSE SERIOUS DAMAGE TO THE LAMP !
4.1.4.2 “TEMP” - Temperature monitor
(
Figure 4.1A
The internal heatsink temperature may be monitored by selecting “TEMP”. The
display shows the temperature in degrees Celsius, eg “24ºC”. Normal DMX
operation of the dimmer is unaffected by selecting this function. Pressing the
NORMAL bu tton on the keyp ad will clear the disp lay to “OK”.
Note
The HP12-TR / HP12-SC / HP6-C dimmers are designed to be installed in
standard 19-inch wide racks. These racks should have adequate ventilation
allowing for the side-to-sid e airflow of the dimmers. Fully enclosed racks that
obstruct side-to-side ventilation may cause overheating problems.