Wintriss autoset 1500, User Manual

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Troubleshooting 5-1
Chapter 5. Troubleshooting
This chapter shows you how to respond to AutoSet faults, perform troubleshooting on a few
common AutoSet problems, and use the LEDs on the AutoSet processor board for
diagnostics. It is organized in the following sections:
•
Responding to AutoSet Faults (below)
•
Troubleshooting Common AutoSet Problems , page 5-5
•
Using LEDs As Diagnostic Tools , page 5-7
Responding to AutoSet Faults
When a setpoint is exceeded on one or more strain links, AutoSet opens the output relay and
stops the press, simultaneously activating special fault displays on its front panel. The strain
link channel(s) on which the fault occurred are indicated by a flashing Load LED display.
The type of fault is shown by an abbreviation (e.g., HI, rEP, Err) in the corresponding
Setpoints LED display, which also flashes. On AutoSet 1504 and 1504 Plus units, the Total
LED display also flashes during a fault condition.
Before clearing the fault with the RESET button (standard AutoSet) or DISPLAY switch
(AutoSet Plus), make sure to determine whether the fault was simply a nuisance stop or was
caused by an actual press or die malfunction.
If the fault was the result of a nuisance stop, you need to reset the percent high tolerance dial
(all AutoSet models), percent repeatability dial (AutoSet Plus units only), or both dials
(AutoSet Plus units only) so that AutoSet can create more realistic setpoints. See Chapter 4
for instructions on how to set these dials.
If the fault was caused by a press or die malfunction, you need to find and correct the problem
immediately. Do not clear the fault until you have corrected the problem. Common causes of
tonnage faults are:
•
Stuck part
•
Variation in shut height
•
Significant change in material thickness or hardness
•
Slug stacking
•
Load imbalance
•
Misfeed
•
Broken punch
•
End of stock
If the press stopped due to a press or die malfunction, do not continue until you have completely
corrected the problem! Failure to do so may result in damage to the press and tooling.
Failure to comply with these instructions could result in property damage.
CAUTION