TAM00720
16
DSM1
10/2015
Three-phase-synchronous motor
English
4
Commissioning, operation
4.1
Safety instructions
Operations at the electric motor:
Operations at the electric motor must be executed only, if the motor is at standstill,
under off-circuit conditions and cooled down. All screws a.s.o., which were untight-
ened at the motor must be tightened prior to commissioning, again.
The technical instructions in the accordant chapters of this commissioning and
maintenance guide must be complied with during all operations.
Attention!:
During operations at the motor an optional holding brake must not take up a securing
position (e.g. the holding of loads)!
Risk of death by electrical current:
Assure, that the electric motor is activated and under off-circuit conditions.
Under no circumstances the motor connections may be loosened during operation.
Connect the measurement devices in currentless and de-energized state, only.
Start operations at the motor connections not until assuring that neither potential nor
voltage are present.
There is electric potential at the motor contacts and the motor windings. Never touch
these components/elements during operation.
Installation and demounting of safety devices:
Do not operate the electric motor without installing the safety devices.
The motor must be put out of operation to mount and demount components and sys-
tems, which are provided to monitor the safe motor operation.
Danger! Do not touch!
Prior to touching the electric motor, assure that the electric motor is at standstill and is
protected against unintentional restart.
The motor must be at standstill and within a non-energized state before you can touch
the output shaft. Otherwise, the rotating rotor causes a hazard.
Danger of burning! Never touch the motor housing within rated load operation. Sur-
face temperatures of 70°C and above can occur at the motors.
