Tek 2 with occupancy detection – TEKVOX TekMonitor 2 User Manual
Page 14
TEK 2
User’s Manual
V111813
14
TEK
VOX, Inc. – 210.348.6565 –
San Antonio, TX 78216
TEK 2 with Occupancy Detection
TekWizard Template: TEKVOX
– TEK2 Occ 1
Adding Occupancy detection to a TEK 2 can reduce operating cost of a video projector. The TEK 2 has
the ability to interface with different types of occupancy and motion detectors. When motion is detected,
the occupancy detector triggers an on event on Input 2 of the TEK 2. Once motion is no longer detected,
the occupancy detector triggers an off event on Input 2. The off state then starts a Motion Timer for
motion sensors or starts the System Off timer for occupancy sensors.
Macros
Motion
–
If System Power is On - The system off countdown timer is stopped and reset.
No Motion
–
If System Power is On - The system off countdown timer runs. If this timer reaches zero, a system off
Macro is called, shutting down the projector.
Note that when using a Digital Output to control a lighting power pack, the logic is reversed. This means
when power is first applied to the TEK 2 the Digital Output is in an open state, causing the pull-up resistor
to supply current to turn on the power pack. Once the TEK 2 is running, a command is issued to turn on
this output causing the power pack to go off. Using a relay solves this problem.