The DC450 series 2 door controller is a DIN rail mounting controller with extended features compared to the series 1 controllers. The number of users allowed in a DC450 door is about 5,000.
The number of time schedules has been increased to 126 and the number of time schedule groups to 64. In addition to the public holiday list in the DC390, the DC450 allows the specification of ranges of dates which can be used as public holidays.
Alarms too have been modified. The DC450 now handles tamper as well as open, short and input alarms on each input. Alarms for "forced door" and "door open too long" have been included. Packaging has been modified and the DC450 can be either snap track mounted or mounted in a DIN rail enclosure.
8 tamper proof inputs with 12 bit resolution
0 – 10V input range
Common open and short voltage levels
Individual upper and lower tamper levels
Capability of inhibiting an alarm on an input
Selectable inhibit and inhibit polarity on each input
Individually selectable reverse action for Open Closed
Individual time schedule for each input with normal or inverted selection
Each input can generate up to 4 alarms – open circuit, short circuit, tamper, open
4 output relays one of which is dedicated to the door
Each output can be controlled by a time schedule
Changeover contacts on each relay
Relays are rated to 250V AC/7A, 125V AC/12A
DIN rail mounting enclosure: 156mm L x 85mm W
Power supply: , 12VAC to 21V AC, 16V AC nominal
Includes charging circuitry for a 12V 7AH lead-acid battery
All electronics and power supplies can be mounted in plastic or metal sealed enclosures to meet environmental requirements. No fans, heat sinks or other heat dissipation methods are required. Field wiring connections can be provided through plugs, sockets or penetrations in the enclosure meeting expected environmental requirements.
Enclosures will be sized to accommodate the equipment to be housed.
Sphere Systems | Building Automation & Management Systems
Sphere Systems Proprietary Limited was formed in 1986 by a group with wide experience in engineering, electronic measurements, hardware and software.
The company aims to meet the requirements for its products from Australian sources and to use local technology whenever possible.
Sphere Systems Pty Ltd has a very active design and development team and believes that local equipment can compete successfully against foreign products.
Our equipment is all designed and manufactured in Melbourne, Australia.
Sphere Systems is an engineering research and development company. It employs highly capable and experienced people to produce robust and reliable systems.
These systems are designed so that they can be programmed and supported by both installers and end-users.
The company believes that by staying close to the end-users that their feedback will enhance and improve the products.