Troubleshooting
TOX_Manual_Process-monitoring-unit_CEP400T_en
103
Fault Cause Analysis Measure
Press force too
small Display
error code
<MIN>
Sheets too thin Generally affects all
points
Measure sheet thick-
nesses and compare
with TOX
®
- tool pass-
port.
Error following batch
change
Use specified sheet
thicknesses.
Tolerance when reduc-
ing individual sheet
thickness > 0.2 – 0.3
mm
If the sheet thicknesses
are within the permissi-
ble tolerances, draw up
a batch-based testing
plan.
Sheet strength
reduced
Generally affects sev-
eral points
Compare material des-
ignations for the sheets
with TOX
®
- tool pass-
port.
Error following batch
change
If necessary: Perform a
hardness comparison
measurement.
Use specified materials.
Draw up a hardness-
based testing plan.
Sheet parts
missing or only
one sheet
layer present
Affects all points Repeat joining process
with the correct number
of sheet layers.
One-off occurrence as
a result of incorrect op-
eration
Sheet surface
is oiled or
greased rather
than being
very dry
Check the state of the
sheet surface
Carry out a washing
step prior to joining.
Change to the working
process (e.g. washing
step prior to joining
omitted)
If necessary: Draw up a
special testing program
for greased / oiled
sheet surface.
Broken punch Joining point hardly
present or not at all
Replace faulty punch.
Broken die Joining point is no
longer round in shape
Replace faulty die.
Incorrect tool
combination
installed
Following tool change Compare tool designa-
tion (imprinted on the
shaft diameter) with the
specifications in the
TOX
®
- tool passport.
Control dimension 'X'
too large
Die press-through
depth too large
Cylindrical duct through
the die too large
Point diameter too large
Punch diameter too
small (> 0.2 mm)
After switching
on or zero-
point check,
error code 'Off-
set adjustment'
appears (no
valid zero-
point value)
Broken cable
at force trans-
ducer
Following tool change Replace faulty force
transducer.
After removal of tool
unit
The force transducer
can no longer be cali-
brated
Measuring ele-
ment in the
force trans-
ducer is faulty
Zero point is unstable
The force transducer
can no longer be cali-
brated
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