Battery Function And Replacement; Interface Board Description - Johnson Controls FRICK QUANTUM HD Maintenance Manual

Compressor control panel
Hide thumbs Also See for FRICK QUANTUM HD:
Table of Contents

Advertisement

6.
Check the display. If the Q5 board is booting
but you have no display, check the following:
Check the LED backlight sticks. Look
very closely at the display to see if any-
thing is visible on the screen. If only a
portion looks darkened, it may be that
one of the backlights has failed. If the
entire screen is dark (and it is not is
sleep mode), use a beam type source of
good lighting, such as a fl ashlight, look
for any ghost type image. If it appears
that there is something on the screen
but very dark, the problem may be with
either the backlight harness, the display
or the Q5 board. Check to ensure that
both ends of the backlight harness is
plugged in securely. There is a sticker
on the display mounting plate, that will
have a part number that describes the
type of display.
Verify that both the display cable and
the backlight cable are fi rmly seated. It
may be necessary to remove the video
cable from the back of the LCD display
and re-seat it to be sure it is connected
properly. Note: This is a small connec-
tor. Caution should be observed so
that it is not damaged due to exces-
sive force.
Refer to the Operator Interface section
and check that the LCD, LCD cable, and
software versions are matched correct-
ly.

BATTERY FUNCTION AND REPLACEMENT

The Q5 board utilizes a battery to maintain correct
date and time for the purpose of stamping warn-
ings and shutdowns with the date and time that they
occurred. If the date and time are not being main-
tained properly, this may indicate that the battery is
not functioning, and should be replaced. The bat-
tery may be ordered through Baltimore Parts (P/N
333Q0001786) or may be purchased at most elec-
tronic shops (manufacturers P/N CR-2032).
QUANTUM™ HD COMPRESSOR CONTROL PANEL
MAINTENANCE
The battery is fully assessable, but is surrounded by
sensitive electronic components, so care should be
taken when changing.
To replace the battery, ensure that the Control Power
switch has been turned OFF.
Locate the Battery socket, as shown on the following
drawing:
Once a static wrist band is properly donned, place
your fi ngernail under the edge of the battery, and
gently lift up. The battery should release itself from
the socket easily. Take a new battery and place it into
the holder in the same orientation as the old battery
(the side with the writing must be facing out). Return
the Control Power switch back to ON.
Once the Q5 has rebooted, the correct Date and Time
must be set.

INTERFACE BOARD DESCRIPTION

An interface board has been developed by Frick con-
trols allowing the user to interface external serial
communications connections to the Q5.
These connections consist of:
Comm 1 (RS-422/485)
Comm 2 (RS-422/485)
Comm 3 (RS-485)
A photo of this interface board is shown here:
INTERFACE BOARD
090.040-M (MAR 12)
Page 15

Advertisement

Table of Contents
loading

Table of Contents