Siemens 611 configurationmanual Electrical shock hazard, Attaching warning signs

General safety guidelines 1.5 Electrical shock hazard!

1.5Electrical shock hazard!

DANGER

Electrical shock hazard! When an installed torque motor rotates, potentially dangerous voltages are induced at the cable ends of the motor.

Insulate terminals and leads in open cable ends or take measures to prevent torque motors that have been installed from rotating.

There is also a risk of compression.

DANGER

Danger due to high leakage currents

If high leakage currents are present, more stringent requirements may apply to the PE conductor. Warning signs may also be required on the PDS. You can find more detailed information in the standard EN 61800-5-1.

Protective measures against residual voltages

DANGER

There is a shock hazard danger due to the residual voltages at the motor terminals!

When the power supply voltage is switched-out, active parts of the motor can have a charge of more than 60 μC. In addition, at open-circuit cable ends - e.g. when a connector is withdrawn - even after the power has been disconnected, a voltage or more than 60 V can be present for 1 s. This is the reason that you must apply the appropriate measures to provide protection against residual voltages!

1.6Attaching warning signs

All danger areas must be identified by well visible warning and prohibiting signs (pictograms) in the immediate vicinity of the danger. The associated texts must be available in the language of the country in which the product is used.

20	1FW6 Built-in torque motors
	Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7