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Risk of electric shock as a result of residual voltages
There is a risk of electric shock if hazardous residual voltages are present at the motor
connections. Even after switching off the power supply, active motor parts can have a
charge exceeding 60 μC. In addition, even after withdrawing the connector 1 s after
switching off the voltage, more than 60 V can be present at the free cable ends.
• Wait for the discharge time to elapse.
Incorrect commutation
Incorrect commutation can result in uncontrolled motor movements.
• When installing and replacing an encoder, ensure the correct commutation setting.
• Only carry out the associated work if you have been appropriately trained.
Fire hazard resulting from hot surfaces
You can suffer from burns if you touch the surfaces of the motors. The surface temperature
of the motors may be more than 100 °C (212 °F).
• Never touch the motor during or immediately after use.
• Attach the "Hot Surface Do Not Touch" (W017) warning sign close to the source of
Naturally cooled 1FW6 built-in torque motors
Operating Instructions, 07/2017, 6SN1197-0AF02-0BP2
WARNING
WARNING
WARNING
danger where it can be easily seen.
6.1 Safety guidelines for commissioning
Commissioning
79
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