PennEngineering Haeger 824 WindowTouch-4e - Page 118

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Trouble Shooting (continued)
Problem
Source
Solution
PLC or Expansion
Module shorted.
3.3.1) Unplug both PLC and Expansion Module power plugs
on the bottom of the units and turn on power. If Fuse F1
blows then check wiring to both units for shorts to ground.
If fuse does not blow, then reconnect the PLC power plug
and turn machine back on. If fuse F1 blows, change out the
PLC. If the F1 fuse does not blow then reconnect the power
plug for the Expansion Module. If the F1 Fuse Blows, change
out the Expansion Module.
F2 fuse blows
Fan shorted
Check for a short from terminals T-33 and T-25. If no short
found go to next step. If short is found, replace fan.
Touch screen shorted
Unplug touch screen power cord and check for a short. If a
short is found replace the touch screen. If no short is found
go to next step
Stop switch shorted
Check the stop switch for a short. If a short is found, replace
the stop switch. If no short is found, contact Haeger Service
Department
F3 fuse blows
Footswitch Shorted
Check wiring from the footswitch to the cabinet for damage.
If wiring appears
to be ok go to next step. If not ok, repair or replace wiring.
Remove wire from terminal T-50 and replace fuse. Turn
power back on and see if fuse blows. If fuse still blows go to
5.2. If fuse does not blow, change out the footswitch and
reconnect wire to T-50
Key Switch Shorted
Check wiring on the back of the key switch for tightness or
damage. If wiring appears to be ok go to next step. If
problem is found, repair as needed.
Remove wires from terminals T-49 and T-67 and replace
fuse. Turn power back on and if the fuse blows then go to
5.3. If fuse does not blow then replace key switch and
reconnect T-49 and T-67 wires.
Relays Shorted
Pull relays R1 and R2 and inspect the pins on the back for
damage. If damage to the pins are found replace the relays.
If no damage is found go to 5.4.
E-stop, Analog Module,
CET or Pressure
transducer shorted.
To determine which component is shorted remove the wire
terminals T-48 (analog module), T-45 ( CET ), and T-46 (pressure
transducer). Restore power and if F1 fuse blows replace or
inspect E-stop wiring for shorted to frame. If fuse does not
blow, reconnect Wire T-46 and Turn on power. If F1 fuse
blows change out the pressure transducer. If Fuse F1 does
not blow reconnect wire T-45. If F1 fuse blows then change
out the CET module. If Fuse F1 does not blow then
reconnect wire T-48. If F1 fuse blows, unplug the main
connector on the front of the analog module and turn