8
Hardware Override Switch Notes
ControlKeeper® TouchScreen Logic Board
Hardware Override Switch Notes
In addition to the individual relay override switches, there
is a hardware override switch that allows the override of
all relays on the board. All relays in the enclosure will be
closed as long as the switch is in the ALL ON position. All
relays in the enclosure will be open as long as the switch is
in the ALL OFF position. The ON or OFF state is maintained
regardless of programmed state. In order for relays to run
programmed scheduling the hardware override switch must
be in the AUTO or center position. See Figure 11 for location
of the hardware override switch.
Figure 11. Enclosure Override Switch
LED Operation
The ControlKeeper T has LEDs located throughout the
enclosure for system status monitoring. These will be
discussed in three sections, including ControlKeeper T
Status LEDs, RSC Status LEDs and Relay Card Status LEDs.
ControlKeeper T Status LEDs
There are three (3) system status LEDs that are located
in the upper left corner of the ControlKeeper T. There are
two additional LEDs located in top middle of the board that
diagnose digital switch communications. Please refer to
Figure 12 for location of these status LEDs. These status
LEDs will indicate proper operation or potential problems
with the ControlKeeper T. Normal operation includes the
following LED states.
Status LED:
The Status LED will flash ON and OFF
continuously under normal operation. The LED is an
indication of microprocessor health. If the LED is ON or
OFF all the time, please use the soft reset button on the
controller. If the LED does not resume normal flashing
state, contact technical support.
Digital Switch LEDs:
These LEDs, labeled CAN-TX and
CAN-RX, will flash when digital switch information is being
passed back and forth between the GDS-I device and
the ControlKeeper
T. The CAN-RX LED flashes when the
controller is receiving data from the Digital Switch BUS. The
CAN-TX LED flashes when the controller is sending data to
the Digital Switch BUS.
Power LED:
The POWER LED indicates that the
ControlKeeper
T is getting the proper expected voltage from
the transformer. If this LED is not lit, there is a problem
with power to the board. Please contact technical support
for further details.
Figure 12. Status LED Indicators CKT
Network LED:
The Network LED should flash only when
activity is present on the network wire. If communications
commands are not being transmitted over the network wire
from the Keeper Enterprise Software or broadcast switches
and this LED is flickering, ON constant or flashing, it is an
indication of noise on the network wire that may interfere
with proper system operation. Please check all network wir-
ing carefully for shorts to conduit ground if this condition
exists. Contact technical support for further troubleshooting
help.
RSC Status LEDs
There are two LED indicators on the RSC as well as an LED
next to each side of the RSC Override Switch. Please refer
to Figure 13 for the location of these LEDs
Figure 13. RSC Status LEDs
Status LED:
The Status LED will flash ON and OFF
continuously under normal operation. The normal pattern
of flashing is ON for approximately 4 seconds then OFF for
approximately 1 second then back ON again. In addition to
this blink pattern, the LED will blink erratically when there
