Dove Systems DM 624 RM - Manual (Page 5)

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G) CHANNEL SELECTION AND TESTING
The thumbwheel switch on the front of the unit is the channel selection switch. The number shown is the starting
dimmer. Valid starting dimmer numbers range from 1 to 501. The starting dimmer number determines the setting
for the entire pack of six dimmers. If, for example, the starting dimmer number is 37, the pack reads control
signals for channels 37 through 42.
When the first digit of the thumbwheel switch reads "6", the pack is in load testing mode. The second and third
digits show the dimmer being tested, from 1 to 6. The load test forces the output of the dimmer to full. This is
helpful for focusing and troubleshooting. (e.g. Which channel is that? Is the lamp burnt out?)
H) INDICATORS
The status indicator LED is used to check the Dimmermaster for proper control and power connections. It shines
green when it is receiving power and a valid DMX signal, and both red and green (amber) when it is receiving power
but a bad signal. It also shines both red and green when it is receiving an analog signal only. No light at all means that
it is not receiving power.
2. TROUBLESHOOTING CHART
SYMPTOM: No channels work; no lights at all.
Possible cause:
Action to take:
*Improper pinout on controller or cable wires Check pinout. Check cable.
reversed
*Control console incorrectly set up Reread operating instructions;
check setup & protocol on console.
*Defective control card Replace Control Card Assembly.
*Thermostat has opened Improve air circulation or reduce loads. Check internal
fan. Unit will start working when cool.
SYMPTOM: One or more channels are out.
Possible cause:
Action to take:
*No load connected or lamp Check instrument in known
burned out good outlet.
*Channel breaker is tripped Check load, reset breaker.
*Power wire not connected Check for proper phasing on power wiring
*Test switch in load test mode Select proper starting channel
SYMPTOM: Channels are stuck on or off or work backwards
Possible cause:
Action to take:
*Incorrect power wiring or switch setting Check power wiring and switch SW1
SYMPTOM: Channel breaker keeps tripping.
Possible cause:
Action to take:
*Shorted cord or fixture Clear fault and reset breaker.
*Channel overload Reduce wattage connected and reset breaker.
SYMPTOM: One or more channels are up full and won't dim.
Possible cause:
Action to take:
*SCR failure Replace SCR module.
*Control console incorrectly set up Reread the operating instructions
(Unplug control line to verify) of console
*Test switch in load test mode Select proper starting channel