Safety Notes
Lethal injury and / or property damage caused
by unintended axis motion!
DANGER
If external force influences are to be expected with the safety function "Safe Tor-
que Off", e.g. in case of a vertical axis, this motion has to be safely prevented by
additional measures, e.g. a mechanical brake or a weight compensation; for such
axes, Bosch Rexroth recommends that you use the safe braking and holding sys-
tem.
High electrical voltage! Danger to life, risk of in-
jury due to electric shock!
DANGER
The STO function does not disconnect the voltage of the main and auxiliary cir-
cuits from the drive. Therefore maintenance work on electrical parts of the drive
or the motor can only be carried out after isolating the drive system from the
main supply.
Injury and / or property damage caused by devi-
ation from standstill position!
WARNING
Even if the control of the power section has been safely locked, momentary axis
motion, depending on the number of poles of the motor, can be triggered, when
two errors are occurring simultaneously in the power section with the voltage
DC bus being active:
●
Breakdown of a power semiconductor and
●
Breakdown of another semiconductor
In this case, two of six semiconductors are affected in such a way that the motor
shaft is aligning.
Risk of injury and material damage due to im-
proper operation!
CAUTION
It is not recommended to stop the drive using the STO function. If a running
drive is stopped with STO, the drive will trip and stop by coasting. If this is not
acceptable, the drive and machinery must be stopped using the appropriate
stopping mode before using STO.
EFC x610 Series
Bosch Rexroth AG
Appendix
DOK-RCON03-EFC-X610***-IT05-EN-P
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