8400 StateLine C | Reference manual
Function library
Function blocks | L_Interpolator_1
806
L
Firmware
≤
11.00 - DMS 8.0 EN - 10/2011
16.1.21.2 Signal monitoring
If signal monitoring is active (
C00950/2
= 1), the signal characteristic of the
dnPhIn_p
input
signal is continued even if the data telegram is missing (setpoint selection via CAN).
Monitoring is performed on the basis of the
dnPhIn_p
position setpoint and the
bSpeedAct0
status signal:
If the
dnPhIn_p
position setpoint remains the same in the next device cycle, it is either
because the speed is zero or because no data telegram has been received.
The evaluation of the
bSpeedAct0
status signal gives information about which reason
applies. This status signal needs to be transmitted by the setpoint source to ensure
trouble-free operation:
–
bSpeedAct0
= FALSE means that the speed is not zero, so an error is assumed: The
signal characteristic of the
dnPhIn_p
input signal is completed (the current slope is
retained).
–
bSpeedAct0
= TRUE means that the speed is zero, so the unchanged position setpoint
is not treated as an error.
If the number of missing data telegrams exceeds the limit value parameterised in
C00952
, the
bSignalError
output is set to TRUE.
– The
bSignalError
output is automatically reset to FALSE if correct signals are detected
at
dnPhIn_p
and
bSpeedAct0
again.
Note!
Do not change the number of interpolation steps during operation. Otherwise
the interpolation becomes inaccurate.
Note!
The
nNIn_a
analog value is not monitored!
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