Siemens SIMOTICS FD 1LH1 Operating Instructions & Installation Instructions page 25

Drive
The motor speed is controlled using a converter. It has been optimized for operation with
SINAMICS low-voltage converters.
Other converters must comply with certain requirements: You can find more information in the
catalog or in the engineering documentation.
Line operation
The motor is supplied from the line system.
Efficiency requirement
According to EU Regulation (EC) No. 640/2009, the IE3 efficiency requirement for low-voltage
motors with a power of 7.5 kW to 375 kW for line operation has been in force since January 01,
2015.
From January 1, 2017, the IE3 efficiency requirement for motors with a power of 0.75 kW to
375 kW applies for line operation.
Efficiency IE2 still applies for motors that are operated from a converter.
Please note the applicable country-specific rules and regulations.
NOTICE
Destruction of the machine when operated directly from the line supply
The machine will be destroyed if it is directly connected to the line supply. Only operate the
machine using a converter.
NOTICE
Machine damage for operation on the converter
If you connect the machine to a converter, the machine can be damaged. Operate the
machine only on the electrical supply system.
Cooling
The cooling system is designed as a closed, internal cooling circuit. The heat lost from the
machine is dissipated partially via heat conduction and partially via the cooling air at the cooling
water flowing through the cooling pipes. A shaft-mounted fan ensures circulation of the cooling
air.
Degree of protection
The machine is available with degree of protection IP55.
SIMOTICS FD 1LH1
Operating Instructions 01/2019
Description
25