Optoma FHDQ130 FHDQ130 User Manual - Page 25

Electrical The power distribution system used must provide adequate protection against excess line current and leakage currents to earth. Parameter Input current Input freq. Power Electrical Characteristics for ONE FHDQ130 At 200V AC Input At 240V AC Input Unit Rating nom. Max. Parameter Unit Rating nom. A 6.00 15.00 Input current A 5.00 Hz 50 - 60 65 Input freq. Hz 50 - 60 VA 1200 3000 Power VA 1200 Max. 12.50 65 3000 ◆ Circuit Protection Each section of the screen should be protected by a Circuit Breaker to protect against high fault currents, and a Residual Current Device (RCD) to detect earth leakage currents. ◆ Earth Leakage Considerations Each FHDQ130 LED display has earth leakage current contributions from twenty-five switched-mode power supplies and two filters. The total earth leakage current per LED display can be up to 25.35mA at 240V. If a 30mA RCD is used, then the maximum number of LED display s per section should be safely limited to 1. ◆ Inrush-current and over-current considerations The inrush current of the switched mode power supplies used to provide LED and logic power to each LED display is specified by the manufacturer as 15-20A at 240volts for a duration of 3mS. However, maximum current in the steadystate for a LED display is considerably less: 12.50A at 240 volts and 15.00A at 200 volts. The circuit breaker used to control a section of the screen must be able to handle the short-term inrush current at switch-on, without causing unnecessary disconnection of the supply, and be able to detect excess currents due to faults within the equipment, during normal operation. 20A Circuit Breaker is recommended. ◆ Earthing Each LED display is separately connected to the AC power distribution system's earth through green/yellow wires connection. All exposed metalwork is also connected to this earth. ◆ FCC Statement This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. *Note: Modifications not authorized by the manufacturer may void users authority to operate this device. ◆ EMC Statement Installations should be located at least 30 meters from other sensitive systems or installations and if situated in close proximity to a roadway it may create interference to vehicle radio communications. Page 25 of 64