Dangers Posed By Moving Parts - Siemens G120P Technical Manual

Safety
3
Residual risks

3.5.2 Dangers posed by moving parts

14 | 98
Siemens
Building Technologies
DANGER
Danger to life due to electric shock when device is not grounded!
For missing or incorrectly implemented protective conductor connection for
devices with protection class I, high voltages can be present at open, exposed
parts, which when touched, can result in death or severe injury.
● Ground the device in compliance with the applicable regulations.
DANGER
Danger to life due to electric shock when opening plug connections in operation!
When opening plug connections in operation, arcs can result in severe injury or
death.
● Only open plug connections when the equipment is in a no-voltage state,
unless it has been explicitly stated that they can be opened in operation.
DANGER
Danger to life due to unexpected movement of machines when using mobile
wireless devices or mobile phones!
Using mobile radios or mobile phones with a transmit power > 1 W closer than
approx. 2 m to the components may cause the devices to malfunction in such a
way as to influence the functional safety of machines and therefore place people
at risk or cause property damage.
● Switch off radio units and mobile phones in the direct vicinity of the
components.
WARNING
Danger to life due to moving (rotating) mechanical parts!
When the variable speed drive is switched on, the motor may start up
unexpectedly. Contact with moving parts can cause severe physical injuries and
serious property damage.
● Only touch these parts when the machine is at a standstill.
● Certain parameter settings can cause the variable speed drive to restart
automatically after a fault or after a failure in the power supply once the fault is
eliminated and acknowledged or after the power supply is restored.
● Ensure that the DIP switches are correctly set, and that the inputs are
properly configured. Otherwise, the drive can start inadvertently.
● Install a mechanical disconnector (depending on the application) that allows
the motor feeder cable of the variable speed drive to be disconnected for
maintenance or troubleshooting.
A5E36496664A_d
2016-03-17