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090.040-M (MAR 12)
Page 28
Output that is On.
If a properly confi gured Digital I/O is not responding
correctly, fi rst look at the Digital Board on the Service
Screen and check if the module is on. If it is not on,
check if the LED on the Digital Board is also not lit. If
the LED is not lit, then check the fuse. If the fuse is
OK, then check the module.
FUSE TESTING AND REPLACEMENT
1.
Power off the panel.
2.
Open the panel door.
3.
Remove the questionable fuse.
4.
Place the questionable fuse into the fuse
tester at the one end of each Digital I/O
Board (refer to the Digital Board drawings at
the end of this section for exact fuse tester
location).
5.
Power on the panel.
6.
Check the LED on the tester. If the LED is lit,
the fuse is OK.
7.
Power off the panel.
8.
If the fuse is faulty, check for external shorts
on the corresponding circuit, the replace
the fuse with a new plug-type fuse (refer to
Recommended Spare Parts list).
INPUT AND OUTPUT MODULE TESTING AND REPLACE-
MENT
1.
Power off the panel.
2.
Open the panel door.
3.
Replace the questionable module.
4.
Power on the panel.
5.
If it is an Output module, check for proper panel
voltage on the orange connector plug. Check the
voltage between position 4 (neutral) and the as-
sociated position to the Output module.
6.
If it is an Input module, check if the associated
LED is on when power is applied to the module.
TROUBLESHOOTING AN OUTPUT
1.
Make sure the LED associated with the Output is
on when power is applied to the module.
2.
If the LED is not on when it should be and there
is no operating condition preventing it, contact
your Frick® factor for service.
3.
If the LED is on when it should be, check for
proper panel voltage on the white connector
plug. Check the voltage between the position 4
(neutral) and the associated position to the Out-
put module.
4.
If the voltage is OK, check for proper panel volt-
QUANTUM™ HD COMPRESSOR CONTROL PANEL
MAINTENANCE
age between the associated position to the Out-
put module on the orange connector and the as-
sociated position on the terminal strip.
5.
If the voltage is OK, check the wiring external to
the panel.
6.
If voltage is not OK, check the fuse.
7.
If the fuse is OK then check the module.
8.
If the module is OK, check for proper panel volt-
age on the orange connector plug between posi-
tion 3 (Hot) and position 4 (neutral).
TROUBLESHOOTING AN INPUT
1.
Make sure the LED associated with the Input is
on when power is applied to the module.
2.
If the LED is on then the fuse and Input module
are good.
3.
If the LED is on and there is no input voltage,
replace the Input module.
4.
If the LED is not on when power is applied, check
the fuse.
5.
If the fuse is good, replace the Input module.
6.
If you are receiving an Alarm or Shutdown from
a digital input in which the adjacent LED indica-
tor light is on, check the Service Screen to see if
that channel is turning on and off. If so, replace
the input module.
REPLACING A DEFECTIVE DIGITAL BOARD
The procedure to replace a Digital board is outlined
below. NOTE: Use an anti-static wrist band for this
procedure:
1.
Shut off control power.
2.
Remove the old board from the panel.
3.
Remove the new board from its packing and
place both on an anti-static surface.
3.
Check that all jumpers, dipswitches and
components are properly setup on the new
board as it was on the old board (refer to the
Digital Settings tables near the end of this
section).
4.
Install the modifi ed replacement board in
the panel.
After replacing or installing a Digital Board and
powering on the control panel, select [Re-de-
tect I/O Boards] from the Menu > Service >
Communications screen.
vides a method to detect all connected Digital
and Analog boards. If a board has been removed,
a communication error shutdown will be issued
until this key is selected. The About screen will
show what was detected.
This selection pro-
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Troubleshooting
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