Technical data

Safety Integrated Functions
8.3 System features
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
351
CAUTION
If the safety functions SLS without encoder or SDI without encoder are already selected
when the gating pulses for the Power Module are enabled, then during the starting phase, it
is absolutely imperative that you take into account the response times when limit values are
violated and for system errors in order to extend the time value set in parameters p9586
and p9386
5)
with respect to the standard values (see the table above).
The standard response times (see the table above) are valid after the time interval, which is
set in parameters p9586 and p9386.
Information on the tables:
1)
r9780 = 2 ms (fixed)
2)
SLS: Specification of the response time required for initiation of a braking reaction in the
drive, or for the output of the "SOS selected" message to the motion control system.
3)
SSM: The data corresponds to the times between the limit value being undershot up to
sending the information via PROFIsafe.
4)
SSM: The data corresponds to the times between the limit value being undershot up to
output of the information via the terminals.
5)
This is how you determine the "delay time of the evaluation encoderless" (p9386/p9586)
The delay time p9586/p9386 is used to avoid unnecessary messages/signals while the
converter starts.
1. To determine the minimum delay time p9586/p9386, record (trace) the starting behavior
of the drive system (with the motor and the intended load). The STARTER trace function
allows the value for p9586/p9386 to be determined.
2. In order to avoid unnecessary messages/signals, deselect the "SDI without encoder" and
"SLS without encoder" functions.
3. Activate the trace function using the trigger "OFF2 → inactive" and as signals to be
recorded/traced: the current in at least one motor phase and OFF2.
After the ON command, record this motor phase current until I
rated
is reached. Enter the
time that it takes to reach I
min
(+ 10 % reserve) into p9386.
4. Start the drive as it would normally start in your particular application.
5. From the trace, read-off the time, after which the current peak of the induction motor or
the pulse pattern of the rotor position identification has ended, and the current has
exceeded the "minimum current actual value sensing without encoder" p9588/p9388.
6. Enter this measured time + approx. 10 % into p9586 (as a result of the parameter
doubling function, the same value is automatically entered into p9386).
7. Activate the "SDI without encoder" and "SLS without encoder" functions
8. Restart the machine, and keep the trace function activated.
9. Unnecessary messages/signals should no longer occur.