Safety And Requirements For Using The Product; Safety; Safety Instructions For The Sto Safety Function (Safe Torque Off ) - Festo EMCA-EC-67 Serie Traducción Del Manual Original

EMCA-EC-67-...
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Safety and requirements for using the product

1.1

Safety

When commissioning electrical drives:
• Always observe the safety instructions and warnings in the documentation of the product
(è Tab. 1) and the documentation of the components used.
• Before mounting and installation work, switch off supply voltage and secure it against being
switched on again. Only switch on the supply voltage again when mounting and installation work is
complete.
• Never remove or insert a plug connector when the motor controller is powered.
• Observe the handling specifications for electrostatically sensitive devices.
• Only enable the controller if the drive has been professionally installed and fully parameterised.
• Do not carry out repairs on the device. If defective, replace the device.
1.1.1

Safety instructions for the STO safety function (Safe torque off )

Note
In order to achieve safety characteristics according to EN ISO 13849-1:
• Conduct a risk assessment of the application.
• Select the components and connect them in accordance with the required category
in accordance with EN ISO 13849-1.
Caution
Failure of the safety function can result in serious, irreversible injuries, e.g. due to unex­
pected movements of the actuators.
• Do not bypass the connections for safety equipment.
• Observe the input voltage ranges of the device è Chapter 4.
• Only use the STO function when all of the necessary safeguards have been set up
and are functional.
• Validate the STO function to complete commissioning.
Caution
Severe injuries as a result of uncontrolled movement of the passive actuators when
switching off the power output stage. The STO function is insufficient as the sole safety
function for drives that are subject to permanent torque (e.g. through suspended
loads).
• Shut down the passive actuators mechanically, if required, e.g. via a brake. This
especially applies to vertical axes without automatic locking arrangement, clamping
units or counterbalancing.
• Reliably prevent movement of the actuators by suspended loads or other external
forces, e.g. with a mechanical holding brake.
Festo – EMCA-EC-67-... – 1603 English 25