Servicing The Cabinet; Checking The Isolating Clearances - Siemens SINAMICS S120 Operating Instructions Manual

NOTICE
Screw connections for protective covers
The screw connections for the protective covers made of Makrolon may only be tightened
with 2.5 Nm.
8.2.3.3

Servicing the cabinet

Cable and screw terminals must be checked regularly to ensure that they are securely in
position and, if necessary, retightened. Cabling must be checked for defects. Defective parts
must be replaced immediately.
Note
Maintenance intervals
The actual intervals depend on the installation (the environment in which the cabinet is
installed) and operating conditions.
Siemens offers its customers support in the form of a service contract. For further details,
contact your regional office or sales office.
NOTICE
Contamination
Contamination and dirt can damage the device.
Visually inspect the equipment at least once per year. For more information, please refer to
the section "Visual inspections".
Dust deposits inside the cabinet unit must be removed at regular intervals (or at least once
a year) by qualified personnel in line with the relevant safety regulations.
Note
The actual intervals at which maintenance procedures are to be performed depend on the
environmental and operating conditions. Define maintenance intervals for the drive which
reflect your plant-specific environmental and operating conditions and meet your availability
requirements. When doing so, take the prescribed maintenance intervals into consideration,
as well as the instructions for repairing and replacing installed components.
8.2.3.4

Checking the isolating clearances

● Slight, dry, non-conducting contamination is permitted.
● Remove contamination caused by dust in conjunction with high humidity.
Siemens Drives & PLCs
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A
Servicing
8.2 Preventive maintenance
109