All persons working on, with or in the vicinity of an electrical system must be
informed of the relevant safety requirements, safety guidelines and internal
instructions (EN 50110-1).
2.5 General safety instructions
Do not install or operate motors or components of the electric drive and con‐
trol system before you have not carefully read all delivered documents.
Please observe the particular applicable national, local and system-specific
regulations, the safety instructions in the documentation and the warning and
informative labels on the motors.
Improper use of the motors and failure to follow the safety instructions in this
document may result in material damage, personal injury, electric shock or, in
extreme cases, to death!
In the case of damage due to non-observance of the safety notes, Bosch
Rexroth assumes no liability.
Applications for functional safety are only allowed if the motors have the SI-
sign on the rating plate.
2.6 Product- and technology-dependent safety instructions
2.6.1 Protection from electric voltage
Work required on the electric system may only be carried out by skilled elec‐
tricians. Tools for electricians (VDE tools) are absolutely necessary.
Before working:
1. Enable.
2. Secure against reactivation.
3. Ensure de-energization.
4. Ground and short-circuit.
5. Cover or shield any adjacent live parts.
After completing the job, cancel the measures in reverse order.
Dangerous voltage occurs during operation! Danger to life, risk of injury by
electric shock!
● Before start-up, connect the protective conductors on all electric compo‐
nents according to the connection plan.
● Operation, even for short measuring purposes is only allowed with fixed
connected protective conductor on the specified points of the compo‐
nents.
2.6.2 Protection from mechanical danger
Dangerous movements! Danger to life, risk of injury, heavy injury or material
damage.
● Do not stay within the motion zone of the machine. Avoid unauthorized
access into the danger zone.
● Additionally secure vertical axes to prevent them from sinking or de‐
scending after having shutdown the motor, for instance as follows:
– Mechanically lock the vertical axis,
– providing an external braking / catching / clamping device, or
– Ensure sufficient weight compensation of the axes.
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Safety instructions
MSK Synchronous Servomotors
Bosch Rexroth AG R911325169_Edition 03
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