Owner`s manual

7
What is the Model 2000 Inverter?
The DKS Series of Inverter / Power Backup systems are a unique style of battery backup devices.
They are designed to provide an access control system with 120 volt AC power when the primary AC
supply voltage source has failed. The Model 2000 will allow the access control system to maintain
normal operation for an extended period of time.
Most vehicular gate operator battery backup systems are designed to provide a one time open
function for the gate operator. These systems employ a controller, DC motor and batteries. They
monitor the supply voltage and simply run the gate to the open position using the DC motor upon loss
of AC power – a convenience device really. In addition, all access system components (telephone
entry system, card readers, RF controls, loop detectors, entrapment prevention devices, etc.) do not
function during this open cycle. These type battery backup systems are incapable of maintaining
normal gate and access system operation during power outages.
The DKS Series 2000 is dramatically different than most gate operator battery backup systems. This
is a true backup system designed to maintain power for all components of the access control system.
During a loss of primary supply voltage, the Series 2000 converts DC battery power and provides 120
VAC operating power to multiple (up to six) gate operators and all other access system components
such as the loop detectors, telephone entry system, card access system, RF controls, etc. This
capability provides normal access control system operation during a power outage. All access
system devices remain operational and all gate operator safety related and entrapment prevention
devices continue to function normally.
How does the system work?
The DKS Model 2000 monitors the AC supply voltage and acts as a battery charger when AC power
is present. This allows the system to maintain proper battery voltage without over-charging the
batteries through its three-stage battery charging system. Upon a loss of AC power, the Model 2000
switches to inverter mode (32 milliseconds) converting the DC battery power to AC power to maintain
operating voltage to the entire access control system. The Model 2000 will continue to provide AC
operating power for an extended period of time. The length of time that the system can provide
power is dependent on many factors including the number of devices connected to the system,
access system usage, battery size, wire size, wire run distance, temperature, etc., but it is not
unusual to receive 1-2 hours of continuous operation for a typical vehicular access control system.
While the system is in inverter mode, battery power is continuously monitored. When the Model 2000
determines that battery power is reaching critical levels, the system will sequentially open up to six
gate operators in 30-second intervals, and will hold the gates open until primary power is restored.
This prevents the vehicular access gates from blocking the roadway when battery power is depleted.
Upon return of AC power, the model 2000 will initialize the gate operators to return the gate access
system to normal operation.
Primary AC supply voltage is routed directly into the Model 2000. The system provides six 20-amp
circuit breakers for high voltage power distribution and in fact acts as a power distribution sub-panel.
There are three different models available to meet the access control system requirements:
• 1500 Watt, 12.5 amp maximum output
• 2400 Watt, 20 amp maximum output
• 2600 Watt, 30 amp maximum output
INTRODUCTION