DN1315-1007
11
KT-300 Door Controller Installation Manual
Powering the KT-300
Install 120 V / 16VAC, 40 VA, class 2 transformer (North Am.).
Connect 230 V / 16VAC, 100 VA, fused transformer (Eur.)
Place battery in cabinet.
Power the KT-300 controller.
The KT-300 Controller must be powered by a 16VAC/40VA class 2 wire-in or plug-in
transformer (applicable to the North American model). The KT-300 European
controller must be powered by a 16VAC/100VA fused transformer.
After you have completed all the necessary steps, you may power the KT-300
Controller. Connect AC power as well as the battery. Once powered, check the VITAL
LED status indicator to determine the status of communication and other vital
parameters. Consult the troubleshooting section for VITAL LED behavior
identification.
If the AC supply is removed, the 12 Volt 7 A/h led-type backup battery will support
normal operation for up to 12 hours if fully charged. Internal battery verification will
cutoff battery power if the battery voltage level falls below 9.5 Volts.
NOTE:
The KT-300 Controller will not start on battery alone.
NOTE:
Power should only be applied to the unit when all connections are completed
and tested.
Installing Combus Modules
Introduction to Combus Modules
The Combus terminals on the KT-300 Controller are used to connect expansion modules to add inputs, outputs, relays and LCD
time and date display. The four Combus terminals of the main panel must be connected to the four Combus terminals or wires
of all modules.
Four expansion modules can be connected to KT-300’s Combus (more specifications on each of these modules can be found
later on in this document.):
•
KT-PC4108 - 8-Zone input expansion module
•
KT-PC4204 - 4-Relay/Power supply expansion module
•
KT-PC4216 - 16-Zone output expansion module
•
KT3-LCD - Kantech LCD keypad module
Combus Specifications
The Combus provides 500 mA at 12 Volts (13.85 VDC). The recommended cable is
#22 AWG. Each loop (module to KT-300) cannot exceed 300 m (1,000 feet) and the
total maximum cable length of all connected loops cannot exceed 1,200 m (4,000
feet).
For example:
•
Only four wireruns at 1,000 feet from the KT-300.
•
Only eight wireruns at 500 feet from the KT-300.
•
Only ten wireruns at 400 feet from the KT-300
Shielded wire should only be used in areas with excessive RF noise of
electromagnetic interference. Modules can be straight run, connected in a daisy
chain or T-tapped anywhere on the Combus.
Keep in mind that the new modules must be defined in the EntraPass system when
they are added to the Combus. Refer to the
Controller Definition
section in the
EntraPass Reference Manual
to learn how to
assign modules to your system.
