Operative mode
Monitoring function
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Item No.: 099-008225-EWM01
5.7.4
Special features of the monitoring function
Duration
The parameter monitoring takes place only in the static conditions (main welding and reduction welding
programs), which prevents error messages from dynamic alterations, such as for ramp overruns.
Fault reduction
A hysteresis method on the monitoring limits prevents the message generator “fluctuating” in the
tolerance band limit ranges.
Parameter
The settings for the monitoring function are stored per JOB and are stored as follows in the program
sequence:
Figure 5-1
Notes on usage
Unstable processes due to the conditions require more in-depth consideration in monitoring. This means
that the monitoring can be improved in terms of reliability by the relevant parameterisation of response
time or by increasing the tolerance value for one individual channel.
Where applicable, deactivating an individual process channel or the temporary deactivation of the
monitoring function during the welding process should be considered.
When using the superpulses welding type, the monitoring needs to be parameterised as very tolerant, as
the system behaviour in this operating mode can be very dynamic depending on the parameters and a
short response time will cause rather undesirable events in this case.
The nominal process values are always specified by the system. With very small tolerance values set,
from time to time the calculated tolerance value can move below the relevant parameter resolution. In this
type of situation, the resultant tolerance value is limited to a minimum value.
