Safety Instructions - Siemens SINAMICS Series Operating Instructions Manual

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Safety instructions

Non-observance of the safety instructions

If the safety instructions in Chapter 1 are not observed, accidents can occur involving

severe injuries or death.

• Make sure that the safety instructions are observed.

Fire through overheating due to insufficient ventilation clearances

Inadequate ventilation clearances cause overheating with a risk for personnel due to smoke

and fire. This can also result in increased failures and reduced service life of the Sensor

Module Cabinet-Mounted.

• For this reason, it is imperative that you maintain the 50 mm clearances above and

Shield support

When the encoder system is connected via terminals, make sure that the cable shield is

connected to the component.

Encoder failures due to encoder signal disturbances

Unfavorable material combinations generate static electricity between the belt pulley and the

belt. This electrostatic charge (several kV) can discharge via the motor shaft and the

encoder which leads to disturbance of the encoder signals (encoder error).

• Use an antistatic version of the belt (special conductive polyurethane mixture).

Electric shock when disconnecting and connecting encoder cables during operation

When disconnecting plug-in connections during operation, arcs can result in severe injury

• Only disconnect or connect the encoder cables to Siemens motors in a voltage-free

SINAMICS DCM DC Converter

Operating Instructions, 12/2018, A5E34763375A

below the Sensor Module Cabinet-Mounted.

state if hot-plugging has not been specifically released. When using direct measuring

systems (third-party encoders), ask the manufacturer whether hot-plugging is permitted.

Additional system components

7.3 Sensor Module Cabinet-Mounted SMC30