Siemens SIMOVERT MASTERDRIVES Manual page 506

10.2004
Other relevant CBC
parameters
DANGER
Siemens AG 6SE7087-6QX70 (Version AD)
SIMOVERT MASTERDRIVES
P722 (CB/TB TlgOFF)
Telegram failure time
With parameter P722 / P695 (see also operating instructions of the converter,
section "Parameter list"), you can specify whether the entry of process data
into the dual-port RAM by the CBC is to be monitored by the converter. The
parameter value of this parameter corresponds to the telegram failure time in
ms. The pre-assigned value of this parameter is 10 ms, i.e. there must be a
maximum of 10 ms between two received process-data CAN telegrams,
otherwise the converter switches off with F082. With the parameter value 0,
the monitoring function is de-activated.
The converter monitors the entry of process data into the dual-port RAM from
that point of time at which the CBC enters process data into the dual-port
RAM for the first time. Only from this point of time onwards can error F082 be
triggered!
If the "On" command (bit 0) has been softwired to the dual-port RAM,
the following measures must be taken for reasons of safety:
An "OFF2" or "OFF3" command (see instruction manual of the
converter, section "Control word") must be additionally parameterized
to the terminal strip / PMU as, otherwise, the converter can no longer
be turned off by means of a defined command if the communications
system breaks down!
P692 (Reaction TlgOFF)
Reaction to telegram failure
With parameter P692 (see also instruction manual of the converter, section
"Parameter list"), you can specify how the converter is to react to telegram
failure.
With the parameter value 0 "Fault", the converter immediately switches off
with fault F082. The drive coasts to a stop.
With parameter value 1 "OFF3 (fast stop)", the drive carries out an OFF3
command (OFF with fast stop) and only then assumes a fault status with fault
F082.
P781.13 (fault delay; only applies to CUPM, CUMC and CUVC)
With this parameter, P731.13, fault F082 can be delayed, i.e. the drive is not
turned off immediately when a fault occurs but only after expiry of the time
entered in the parameter.
This makes it possible to react flexibly to a bus failure. With the help of
binector B0035 "CB/TB telegram failure", the drive can be shut down (OFF1
or OFF3) by making the fault delay longer than the ramp-down time.
Compendium Motion Control
Communication / CBC
P695 (CB/TB TlgOFF)
8.4-51