en03d441.fm, 07.04.2011 PL12EN-1001 2011-04 35
Programming
3
Fig. 3-7 Fastening stage timing
Range of values
When Fastening stage timing is completed, the entered parameters are checked for agreement with the
permitted value ranges.
If a value is out of range, the program displays an error message and returns to Fastening stage timing.
Parameters Explanation
Fastening time
(Tmax)
0...60,000
Fastening time for the maximum duration of the rundown. TD (start delay time) and TN
(dwell time) are not monitored by Tmax.
Tmax > TS + fastening time + TN
The fastening time begins with spindle start. If no shut-off criterion is reached at the
end of the fastening time, the sequence is terminated (safety shutdown) and evaluated
NOK (Tmax: Terminated because Tmax is exceeded).
Tmax must always be higher than 0.
The shut-off criteria are constantly checked, not only after timeout of Tmax.
Start delay
time (TD)
0…60,000
Delay time before spindle start.
The start delay time at the beginning of the stage allows wait time to be programmed
between stages. If grouping is activated, the delay time will not be available here,
because this parameter will be defined for the entire group.
Start pulse
suppression
(TS) 0…999
Time beginning with spindle start, during which the torque is not recorded. For safety
reasons, the calibration value is continuously monitored to ensure it is not exceeded.
During startup, the inertia moments in the spindle generate a torque impulse at the
transducer. To avoid misinterpretations in the rundown sequence, this should not be
measured and evaluated.
Marking time
(TC)
0…60,000
Time for color marking after OK rundown. At the end of an OK rundown, the output
"Color" at the I/O level is set for the marking time programmed in the last stage to be
processed. The output is designed for direct control of a color marking system for OK
rundowns. The marking times of the other stages will be ignored.
Dwell time
(TN) 0…999
Measuring time after shut-off of the spindle.
The kinetic energy of the spindle may cause it to continue rotating after shut-off, which
increases torque and angle and continues measurement during the dwell time. During
the dwell time, only the peak torque is detected and angle pulses are counted only for
the nominal rotation direction!
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