Epos And Safe Stop 2 - Siemens SINAMICS G130 Manual
Safety integrated
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6.5.2
EPOS and Safe Stop 2
Since the function SS2 – with its setpoint-independent braking – is not suitable for use with
EPOS, the Safe Operating Stop (SOS) function can be used with delay.
On selection of SOS, the EPOS function "intermediate stop" (p2640 = 0) ensures that EPOS
is able to stop the drive in its tracks and then keep it under control in this state before the
SOS becomes active. The maximum necessary braking time (from p2573 and p2645 from
EPOS) must then be entered in the delay time for SLS/SOS (p9551/p9351) with a small
safety addition: This ensures that the drive is stationary before SOS becomes active.
Proceed as follows:
1. Connect the EPOS function "intermediate stop" (p2640) with the SOS selection
2. Enter the maximum necessary braking time from EPOS (depending on the values set in
Overview of important parameters
● p2573 EPOS maximum deceleration
● p2594 CI: EPOS maximum speed externally limited
● p2640 BI: EPOS intermediate stop (0 signal)
● p2645 CI: EPOS direct setpoint input/MDI, deceleration override
● p9351 SI Motion SLS changeover delay time (Motor Module)
● p9551 SI Motion SLS(SG) changeover delay time (Control Unit)
● r9720.0...10 CO/BO: SI Motion control signals integrated in the drive
● r9733[0...1] CO: SI Motion speed setpoint limit active
Safety Integrated
Function Manual, 05/2010, A5E03264275A
(p9720.3).
p2573 and p2645) with a safety addition (+1 to +5%) in the SOS delay time
(p9551/p9351).
Safety Integrated Extended Functions
6.5 Safe Stop 2 (SS2)
89
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