Dove Systems DM-624 - Manual (Page 4)

4
D Grounding
The term GROUNDING refers to a separate wire with green insulation which is connected from the
equipment case to earth ground (often through a properly grounded conduit system). This is not the
same as the neutral or common and must not be confused with them. The neutral is a separate,
load-carrying circuit conductor. The ground conductor should not normally carry current.
When the Dimmermaster is connected to its power source by a flexible rubber cable, the ground
connection is made through a wire in the cable. For maximum safety and to comply with electrical
codes, this connection must be made. Cables supplied by Dove Systems are pre-wired for this
connection and include the necessary green wire. Be sure this is firmly bonded to a ground connection
box, a cold water pipe, or a known earth ground.
When the Dimmermaster is connected to its power source by conduit, the ground connection can be
made via the conduit itself. If flexible conduit is used, a separate bonding conductor will usually be
required. Always check your local codes for hook-up before operating this equipment. It is recom-
mended that power connections to the Dimmermaster be made by a qualified electrician.
E Load Connections
The dimmer pack consists of six dimming channels. The Dimmermaster will dim any load from 1 watt
through 2400 watts at 120 volts. The load may be incandescent, inductive, or resistive. This includes
conventional incandescent, quartz incandescent, rain-lights, pin beams, and similar lamp loads. This
does not include fluorescent or neon lamps. Dove Systems offers a solid state transformer to dim other
types of loads, such as 12 volt MR16 lamps.
The output connectors can be U-ground receptacles, stage pin receptacles, twist-lock receptacles
(L5-20R), or a terminal block. If your unit has receptacles installed, merely plug the load into the outlet
which corresponds to the circuit you desire to use. For terminal-block-only units, there is one lug for
each output and a neutral bar for all neutrals. Lugs are numbered according to their circuits. There
should be a separate neutral returning from each load circuit.
F Control Connections, Overtemp Sensing
The Dimmermaster 624 can take either of two control protocols: USITT DMX-512 or 0 to +10VDC
analog. DMX control input connections are made through the five pin male XLR on the front of the unit.
Analog 0 to +10VDC control input connections are made through the DB15 male on the front of the
unit.
XLR DB15
DMX ANALOG
PIN 1 Common PIN 1 Channel 1 PIN 9
PIN 2 Data PIN 2 Channel 2 PIN 10
PIN 3 Data PIN 3 Channel 3 PIN 11
PIN 4 Return data PIN 4 Channel 4 PIN 12
PIN 5 Return data PIN 5 Channel 5 PIN 13 +15V unregulated
PIN 6 Channel 6 PIN 14 -15V unregulated
PIN 7 PIN 15 Common
PIN 8