Fixing - Siemens 1PH813 Operating Instructions Manual

Installation

5.2 Fixing

Figure 5-1
5.2 Fixing
To ensure smooth, vibration-free operation, the base must be designed in accordance with
DIN 4024, the machine must be precisely aligned, and the components to be mounted on
the end of the shaft must be properly balanced.
Securing the motor by means of motor feet (mounting foot)
The contact surfaces of the motor feet must lie on one plane. If the motor needs to be
aligned, position metal shims underneath the feet in order to prevent machine deformation.
The number of shims should be kept as low as possible i.e. stack as few as possible.
Securing the motor by means of a flange (flange mounting)
NOTICE
When the motor is mounted by means of a flange, this creates an oscillating system with
specific natural installation frequencies, which can generate excessive vibration during
operation. To counter this, additional support can be provided at the NDE.
Ensure that the motor is not subject to excessive tension.
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inlet and discharge openings and adjacent components (see "Minimum distance" diagram
in "Cooling" section). It is not permissible that the hot air is drawn-in again.
NOTICE
The covers for air-cooled motors, which were removed to allow the motors to be
secured, must be reattached before commissioning.
Cover for foot mounting (1) at NDE (example)
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22