Siemens SINUMERIK 840C - Manual (Page 657)

Selection
meas. signal
09.95
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Siemens AG 2001 All Rights Reserved 6FC5197– j AA50 9–36
SINUMERIK 840C (IA)
Explanation In this display, the output DACs are assigned via drive selection (+/–) and speci-
fication of the axis/spindle name.
The offset input values must make allowance for the output range of the analog
voltage signal. The 611D drive module DACs have an output range of –2.5 V to
2.5 V.
Since the DAC resolution is limited (8 bits), a window can be placed over the
output value by means of the shift factor, i.e. the signal output is decreased
(scaling) when a negative shift factor is input and is increased (scaling) with a
positive shift factor. The input limits for the shift factor vary for SERVO, FDD and
MSD:
Note The analog output must be set again after Power On Reset.
SW 3
You can select lists containing a selection of signals with this softkey:
Explanation Signals are selected with the cursor hardkeys and softkey Selection End. The
page-up and page-down hardkeys can be used to scroll in this list.
Selection list for axes Following error
(SERVO) Absolute setpoint (IPO)
Speed setpoint
Part actual value
Part setpoint (IPO cycle)
Contour deviation
Following error (IPO cycle)
Absolut value modulo
Part setpoint FIPO input
Absolute setpoint (LR)
Part setpoint FIPO output
Selection list for axes Part actual value 2nd MS/spindle encoder
and spindles (SERVO) Part actual value 1st MS/C-axis encoder
Selection list for Speed actual value
spindles (SERVO) Speed setpoint (actual)
Selection list for Synchronism deviation
gearbox interpolation Delay compensation value abs.
(SERVO) Delay compensation value inc.
Part compensation value FIPO output
Limiting memory
Part compensation value FIPO input
Leading axis total actual value link
Leading axis total all leading axes
Leading axis total active
Part compensation value (IPO cycle)
GI additional setpoint
Selection list for Current i(R)
611D FDD (feed) only Current i(S)
Current i(d)
Current i(q)
Current setpoint (limited)
Current setpoint (controller output)
Speed actual value motor
Speed setpoint
Speed setpoint reference model
9 Drive Servo Start-Up Application (as from SW 3)
9.4 Mixed I/O configuration and digital-analog converter, DAC (as from SW 3)