Emergency Off Output Signal - Siemens Simotion TM 121C Applications Manual

4.6 EMERGENCY OFF output signal

This function is used for the external processing of the control unit EMERGENCY
OFF signal. The control command to a contactor combination must correspond to
the feedback within a certain adjustable time period.
Attention
This function is not activated until after the feedback input has been
parameterized.
Parameterization
Figure 4-8
See also Figure 5-6.
Note
•
The discrepancy time between the activation of the outputs and the signaling
of the feedback input depends on the response times of the contactors in
use. Typical values lie between 50 ms and 200 ms. Therefore, this maximum
value should not be exceed in the parameterization.
•
The Safety Unit ensures there will be an output signal in Category 4. Systems
connected downstream must be designed in the category they require.
•
After the Safety Unit restarts, the output signal for output activation must be
acknowledged if the output signal has been parameterized for that mode.
•
If the output signal has not been parameterized in a certain mode, it is reset
when that mode is activated. If the output signal is activated using a mode
selector, it is not activated until after acknowledgement.
•
The acknowledgement request is output via the corresponding message.
© Siemens AG 2003 All Rights Reserved
SIMOTION Safety Unit (AP) - Edition 06.2003
Mechanical operation – EMERGENCY OFF output signal
Control elements
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