Table of Contents
Advertisement
Fig. 34: Monitoring function 3(+1): "SS1, time- and standstill-prioritized with
drive-controlled transition"
*1)
P‑0‑3255
P‑0‑3280.0.2 SMO: Max. transition time normal oper. to safe standstill
P‑0‑3280.0.3 SMO: Max. transition time between safe operating states
Monitoring function 4: "SS1, time-prioritized with NC-controlled transition"
When the monitoring function 4 (SS1, time-prioritized with NC-controlled tran-
sition) has been configured, the axis is decelerated in an NC-controlled way
when SS1 is selected. That is to say the higher-level control unit decelerates
the drive using the command value system and removes drive enable at the end
of the deceleration process.
The transition function "Safe stop 1 (SS1)" monitors that the deceleration
process is completed within the parameterized transition time (P-0-3280.0.2 or
P-0-3280.0.3). If the transition is not completed within the parameterized tran-
sition time, the error "F8350 Maximum transition time exceeded" is signaled
and the safety function "Safe torque off (STO)" is activated.
⇒ The maximum time between the selection of the transition function
"Safe stop 1 (SS1)" and activating of the safety function Safe torque off (STO)
does not depend on the transition progress! The maximum time span does is
not extended by an error.
If the drive has been decelerated without error within the parameterized
transition time (P-0-3280.0.2 or P-0-3280.0.3), the transition by the transi-
tion function SS1 is completed with the selection of the safety function
"Safe torque off (STO)".
R911404905, Edition 02
SMD executed on the basis of the actual velocity
SMO: Velocity threshold for Safe standstill
ctrlX SAFETY "SafeMotion"
Transition functions
Bosch Rexroth AG
99 / 302
Advertisement
Table of Contents
