Gland Plate Installation - Siemens SINAMICS G120P Hardware Installation Manual

4.8

Gland plate installation

Overview
The Inverter enclosure has a gland plate fitted to the bottom of the unit with pre-drilled guide
holes to allow the power and control cables to be taken from the unit whilst maintaining the
EMC requirements and IP55/UL Type 12 rating.
In the figures below the gland plate and it fittings are described.
If a guide hole is not used, then a grommet must be used to maintain the seal of the gland
plate.
When replacing the gland plate, it is important to ensure that the seal at the bottom of the
unit is correctly fitted and the correct tightening torques are used to ensure the IP55 rating of
the Inverter.
EMC cable glands
To ensure compliance with the necessary EMC standards, it is recommended that all
communications and I/O cables from the Control Unit are fitted through the gland plate using
EMC compliant cable glands.
Radiated emission compliance
The PM230 Frame Size A to F inclusive, MUST use an EMC cable gland on the motor
cable to comply with radiated emissions standards.
An example of an EMC cable gland is given in the figure below. In the example below the
cable gland also provides protection to the IP68 standard when correctly fitted to the gland
plate.
Power Module PM230 IP55
Hardware Installation Manual, 2010-07-02, A5E02923635A AB
CAUTION
Connecting
4.8 Gland plate installation
49