Software Extension SAF-002/-003 Module
Operation Manual
Safety Module for b maXX 5000
BM5-O-SAF-002/3
Document no.: 5.11016.03
Baumüller Nürnberg GmbH
44
7.8
7.8
Software Extension SAF-002/-003 Module
Due to field experiences with the SAF-module 002/-003 over a longer period the behavior
was improved by a software extension.
In this way the following benefits can be achieved compared to the previous versions:
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Interference suppression of the encoder signals by electronic filters
Interferences can be coupled into the encoder signals due to the IGBT switching pro-
cedures of the controller, causing that the SAF-002/-003 module switches off even be-
fore the set SLS speed limits are reached.
h
Measure:
The number of the encoder sensing is increased within 2ms from 1 up to now to 7 and
on the basis of these a moving weighted averaging is implemented. Interferences are
filtered, this way.
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"Encoder error" response after an inactivity of 12 hours.
The module changes into the "Encoder Error" status after inactivity of 12 hours.
The module must be switched off and then on again.
h
Measure:
At the asynchronous motor an encoder fail is reported only, if an encoder-based safety
function was activated and no motion of the encoder was detected the last 12 hours.
If an encoder failure has occurred the user can confirm it without interrupting the supply
voltage with the module. In order to do this the user must deactivate all of the safety
functions which confirm errors and reset the diagnostic time on the module back to "0"
by a generated movement at the encoder, again. Then, the encoder-based safety
function can be activated again.
Homing must be carried out again, if the safety functions SLP or SCA are used,
because a safe absolute positioning is required.
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Saving the gray data set on the SAF module
Saving is possible if the module is in the basic state, only. The changing into the basic
state is possible by using the configuration tool ProSafePara or if the module has de-
tected an error (such as if there is no encoder connected).
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Measure:
The change in the basic state can now be initiated by the controller, as well so that the
parameter file can be transferred from the controller to the module and be stored there.
The module returns into the active monitoring state after it was stored.
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Safety function SS1
When activating this safety function the configured SS1-time elapses before the SAF
module switches the drive into STO.
This is supposed to allow the drive to drive down a brake ramp before the STO is acti-
vated.
h
Measure:
In the parameterization referring to "SS1" in ProSafePara the new parameter
"Signalize SS1 start to the controller " was added. If this parameter is "On" while the
safety function SS1 is activated, then a message to the controller is carried out at the
same time so that the drive can shut down at a brake ramp. In specific cases a higher-
level control is not required.
In order to achieve an efficient solution the brake ramp in the controller must be set in
such a way that the drive comes to a standstill before the SS1-time in the SAF module
Содержание BM5-O-SAF-002
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