Error input events leds, Log belts led, Log belts button – Gilderfluke&Co KP-300 Smart Brick Control Panel User Manual
Page 12
All the inputs are configured to ʻfail safeʼ, which is to say that an error is
triggered by an open circuit on an input. This is true even for the Kp-300ʼs
. These are wired in series and trigger an E-Stop
if this connection is opened at any point.
C) Error Input Events LEDs
(One red LED for each Error Input, plus one for the
!
(Sixteen LEDs total)
These LEDs flash on the input(s) that triggered an error condition. They
allow you to find which input caused the error, even if it only existed for an
instant.
An example of this featureʼs use is in events like a HPU filter dirty sensor
which has been configured to trigger an E-Stop event. The dirty filter sensor
on the HPU is typically a differential pressure switch which measures the
pressure across the filter. If this pressure gets too high, then the switch
opens to indicate a clogged filter and triggers the E-Stop condition. The thing
that makes this hard to catch is that the E-Stop turns off the HPU, so the dif-
ferential pressure immediately drops back into zero (the ʻOKʼ region, as far
as the switch is concerned), turning back on the green Error Input Status
LED for the input. To further complicate things, because the HPU potentially
turned off right in the middle of a show, the ʻlow pressureʼ error input (if there
is one) will turn off its green Error Input Status LED because the pressure
just went to zero. Under these circumstances the only Error Input Event LED
that will be flashing will be the original ʻDirty Filterʼ one that initiated the E-
Stop in the first place. All the other Error Input Event LEDs will be off.
Once these LEDs are turned on by an E-Stop event, they can only be
cleared when the operator starts the next show. They will keep flashing until
the next show is started. If they were triggered by a Show Pause event, they
will stop flashing but remain lit after the error condition is cleared and the
show is ʻresumedʼ. They will be cleared when there is another E-Stop/Show
Pause event or the next show is started by the operator.
D) Log Belts LED
(One yellow LED)
This LED turns on when the error inputs are are being logged as tempo-
rarily unused. Seat belts can be logged at any time that the
from the Smart Brick System is active. When this input is active,
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485
Kp-300 Manual / September 4, 2012 4:29 PM / page 12 of 75