Product Description
New in original packaging.
NIB Automatic Door Power Supply Architectural Control Systems 1420-26
General Description
This power supply provides the necessary electronics for controlling a complete automated door opening system by coordinating the control of electrified door hardware and an automatic door operator, resulting in a proper sequence of operation from beginning to end of cycle. The paragraph below describes how the system operates, and gives the installer an idea of what can be expected once the system has been installed and is ready for testing. To start the automatic opening cycle, a control device, normally located next to the opening on the entry and exit sides, is activated. Immediately, the electrified door hardware releases to allow the door to swing freely. After a brief delay (about 1 second), the input to the automatic door operator unit receives a dry contact signal from the 1420 power supply, and the door is driven to the open position. The signal to the operator unit resets within approximately 3 - 5 seconds from the time it had been received. From this point, the “Door Hold-Open” time delay built into the automatic door operator unit continues to hold the door in the open position for as long as the delay had been initially set, or programmed for. Once this delay times out, the door will then freely close shut and become locked via the electrified door hardware. (The electrified door hardware switches back from the unlocked state to the locked state at the same time the signal to the automatic door operator is aborted.) The cycle is completed, and the system is now ready for the next activation occurrence.
Controls an opening with electrified door
hardware and automatic door operator
Separate inputs for activation switch on entry
and exit sides of opening
Separate 24VDC outputs for fail safe and fail
secure electrified door hardware
(2 amp max. for either output)
Relay dry contact output to automatic door
operator input
Input for optional fire alarm or emergency
release switch when urgent unlocking of door is
required
Auxiliary 24VDC constant voltage output (1 amp max.)
Built-in time delay between activation of electrified door hardware and automatic door operator
Filtered/Regulated 24 Volts DC
Class 2 Rated Outputs
Overload, over voltage, and short circuit protection
Automatically accepts 120VAC or 240VAC input
UL listed and Tested to 294 Standard for Access Control System Units with Security Levels Rated I for Physical Attack, IV for Endurance, I for Line Security, I for Standby Power
RD.
