SIGMATEK DC 061-1, Manual

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S-DIAS AXIS MODULE DC 061-1
23.08.2019 Page 31
8.1 STO
The DC 061-1 supports the safety functions STO (Safe Torque Off) and meets the require-
ments for Category 4 Performance Level "e" according to EN ISO 13849-1 and SILCL 3
according to EN / IEC 62061.
For his purpose, the servo amplifier has two safe inputs ENABLE 1 and ENABLE 2.
The stop brake control is not a component of the safety function. If a safe shutdown of the
stop brake is required, the +24 V-BR brake supply must also be shut down externally.
8.2 Function
The safety functions in the DC 061-1 are controlled over two digital inputs.
The following table shows the status that the ENABLE 1 and ENABLE 2 inputs must
assume to enable normal operation or trigger the safety function.
Input Status Description
ENABLE 1 ENABLE 2
Open Open
Safe status of
the drive system
Open Low
Low Open
Low Low
Low High
High Low
High High
Drive system ready
If the ENABLE 1 and ENABLE 2 are changed from any status to the "Drive Ready" status,
the servo amplifier is not immediately enabled. In order to set the system to the status
“Drive system ready”, a change from “Low - Low” to “High - High” has to be executed.