QUANTUM
™
HD COMPRESSOR CONTROL PANEL
MAINTENANCE
090.040-M (NOV 2016)
Page 28
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 REPLACEMENT
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 associated 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 posi-
tion to the Output module.
4. If the voltage is OK, check for proper panel voltage
between the associated position to the Output module
on the orange connector and the associated 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 voltage on
the orange connector plug between position 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 indicator 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.
NOTICE
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.
4. 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).
5. Install the modied replacement board in the panel.
After replacing or installing a Digital Board and powering on
the control panel, select [Re-detect I/O Boards] from the
Menu > Service > Communications screen. This selection
provides 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.
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