Bosch Rexroth PSI 6 333 Serie Typspezifische Anleitung Seite 38

38/42 Bosch Rexroth AG
Features
 The pressure control valve may be optionally checked at the end of the
squeeze time. Three modes can be set in the Pressure-force monitoring
parameter:
None:
Discrete input X2.4 is checked. Input is mapped to output "Pressure OK".
The program can move on to the weld time when the input becomes high.
Pressure:
The actual pressure value is measured at analog input X2.3 at the end of the
squeeze time. A value is expected at this input which corresponds to the
commanded pressure value (X2.1) within a programmable tolerance. If this is
not the case, the timer will change to fault condition and output a message. If
the measured value is within the limits, the "Pressure OK" output will be high,
otherwise it will be low.
Force.
The actual force value is measured at analog input X9.4 at the end of the
squeeze time. One kN corresponds to one Volt in this case. If the measured
value is outside a programmable tolerance, the timer will change to fault
condition and output a message. The "Pressure OK" output is always high.
 Enable servo valve:
If serial input "Disable servo valve" is high, the parallel output "Enable servo
valve" becomes low. Otherwise, "Enable servo valve" becomes high.
 If input "Program selection active" is high, the timer will interpret inputs I8 to I15
as program selection for direct access to one of 256 programs. If this input is
not high, inputs I32 to I47 will be interpreted as spot selection. Spots are
indirectly allocated to a welding program via a spot table which has to be
uploaded to the timer.
 Timer has been prepared for the control system PSQ6000 XQR.
From firmware version -104: Rewelds aren´t done in UIR-mode, but in KSR- or
PHA-mode (regarding measuring, regulation, supervision and stepper)
 Weld Enable
If the input „Weld Enable" is low during the start of a sequence an error
message occurs. The execution of the sequence is not possible. If the Input
becomes low during the sequence, the sequence is continued.
 The Residual Current Protection Device is supervised(parallel I0). If an
activation of the RCD is observed (I0 low) an error message occurs. The fault
message is automatically reset when RCD is deactivated(I0 high)
 The time within the current has to exceed a minimum threshold is adjustable. If
this threshold is not exceeded on average, the sequence is stopped and an
error message occurs. (from firmware version -105)
1070087100 | PSI 6xxx.333