Ss1 With External Stop - Siemens Sinamics S120 Function Manual

Requirement
● The Basic Functions are enabled via terminals and/or PROFIsafe:
– p9601 = 1, 8 or 9 (hex)
● Enabling Basic Functions via TM54F
– p9601.6 = 1
● In order that the drive can brake down to a standstill even when selected through one
channel, the time in p9652 must be shorter than the sum of the parameters for the data
cross-check (p9650 and p9658). Otherwise the drive will coast down after the time p9650
+ p9658 has elapsed.
Status of Safe Stop 1
The status of the "Safe Stop 1" (SS1) function is displayed using the parameters r9772,
r9872, r9773 and r9774.
As an alternative, the status of the function can be displayed using the configurable message
N01621 (configured using p2118 and p2119).
4.1.2.2 SS1 with external s top
In drive line-ups (e.g. drives that are mechanically connected via the material), the drive-
independent braking on the respective OFF3 ramp can cause problems. If the SS1E function
is used, the safe delay time (p9562) is started when the function is selected, but no OFF3 is
triggered. The higher-level controller still enters the setpoint. The controller receives the
information that SS1E has been selected via the Safety Info Channel.
Danger to life due t o unsupervised axis motion
During the unsupervised delay time, for "Safe Stop 1 (time-controlled) with external stop",
unsupervised axis motion is possible.
• If there is a hazard due to unwanted movement in your application, take measures to
Differences between "SS1 with OFF3" and "SS1 with external s top"
"SS1 with OFF3" and "SS1 with external stop" have the following differences:
● In order to activate "Safe Stop 1 with external stop", additionally set p9653 to 1.
● When SS1E is selected, the drive is not braked along the OFF3 ramp, but after the delay
time has expired (p9652), only STO/SBC is automatically initiated.
Safety Integrated
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
WA RNING
counter it, for example, by using a brake with safe monitoring. For more information, see
Chapter "Safe Brake Control (SBC) (Page 71)".
Description of Safety Integrated functions
4.1 Safety Integrated basic functions
69