PRG DMX Reference Guide 5.4 - Manual (Page 29)

DMX512 REFERENCE GUIDE 21
Current Requirements
Current calculations are required to ensure that the system has adequate circuit breaker safety control. The AC line
disconnect has a 200A circuit breaker to handle the Series 300 Modular Racks and Series 200 ACS racks. Depending
on the quantity and type of luminaires and the voltage used, the current varies. Although the maximum operating limit
for the AC line disconnect is 200A, we recommend that continuous operating current does not exceed 150A. This will
avoid tripping the circuit breaker. Systems drawing power in excess of 150A will require multiple modular racks, ACS
racks and AC line disconnects. The same is true for the 30A mini-ACS line disconnect. We recommend that
continuous operating current does not exceed 20A.
Equipment current requirements vary with the AC line voltage available. Linear voltage regulators dissipate more
power at higher line voltages and consume more current. Switch-mode regulators maintain constant power into a
load and consume more power at lower line voltages. Some power is lost in long cable runs, resulting in lower line
voltages at the equipment, with the corresponding impact on current requirements. Two factors determine the current
requirements of a system: output voltage of the modular rack and ACS rack and number and type of luminaires in the
system.
Current Calculation
The current requirements for VARI
❋LITE equipment are provided here. For Series 300 luminaires, the current
requirement is expressed as the current draw on a Smart Repeater unit that is fully loaded with six luminaires with
each luminaire operating all motors (a maximum power draw scenario). All VARI
❋LITE Series 200/300 AC voltage
selector boards are designed to operate the equipment within one of three voltage ranges: 80 to 130 VAC, 170 to 260
VAC, or 80-260 VAC.
Because of the complexities of calculating three-phase power requirements, this data will never be 100% accurate,
and is intended for guidance only. It is recommended that a 20% headroom allowance be added to the final phase
figures to allow for imbalances.
CAUTION: Only 50 VL2B and VL2C luminaires may be connected to a Series 200 ACS rack and only nine
may be connected to a mini-ACS rack due to the current requirements.
CAUTION: To avoid damage to equipment and to ensure proper equipment operation, consult with local
staff regarding power concerns.
Equipment
120 Volts Phase to
Neutral60 Hz Wye Mode
208 Volts Phase to
Phase60 Hz Delta Mode
240 Volts
Phase to Neutral
l50 Hz Wye Mode
VL2C Luminaire 11.0 amps 6.5 amps 6.3 amps
VL4 Luminaire 8.0 amps 4.8 amps 4.5 amps
Smart Repeater 9.6 amps 5.2 amps 6.0 amps
Smart Repeater Plus 12.8 amps 7.2 amps 6.5 amps
DMX200 1.0 amps 0.2 amps 0.3 amps
SPC-36 Controller 1.0 amps 0.2 amps 0.3 amps
APS6 Module (400W) 6.7 amps 3.7 amps 3.6 amps
APS6 Module (625W) 9.5 amps 5.5 amps 5.1 amps
APS6 Module (700W) 11.5 amps 5.8 amps 7.4 amps
C3 Module (1000W) N/A 4.7 amps 4.3 amps
C3 Module (1200W) N/A 5.2 amps 5.1 amps
DMX Power Pack 10.0 amps 6.0 amps 5.0 amps