Siemens SIMOTICS Series Hardware Installation Manual

Connection
7.1 Connecting the cooling
SIMOTICS M-1FE2 built-in motors
Hardware Installation Manual, 04/2020, A5E50074509B AA
137
WARNING
Danger to life when the cooling system bursts
The motor will overheat if it is operated without cooling. When cooling water enters the hot
motor, this immediately and suddenly generates hot steam that escapes under high
pressure. This can cause the cooling water system to burst, resulting in death, severe injury
and material damage.
• Never operate the motor without cooling.
• Only commission the cooling water circuit when the motor is in a cool condition.
CAUTION
Danger of burns a result of touching hot surfaces
In operation, the motor housing can reach high temperatures, which can cause burns if
touched.
• Do not touch any hot surfaces.
• Allow the motor to cool down before starting any work.
• Use the appropriate personnel protection equipment, e.g. gloves.
NOTICE
Material damage due to the effect of electrochemical series
When using different conductive materials, material damage can occur as a result of the
electrochemical series.
• Do not use any zinc in the cooling circuit.
• Use brass, stainless steel or plastic for pipes and fittings.
NOTICE
Motor damage due to lack of cooling
If you operate the motor without water cooling, the motor will be damaged or destroyed.
• Only operate the motor with a closed cooling water loop with heat exchange equipment.
• If air cooling is used (special version) only operate the motor with fan switched on in
accordance with project specifications

Siemens SIMOTICS Series Specifications

General

Product brand name	SIEMENS
Product designation	SIMOTICS
Efficiency Class	IE1, IE2, IE3, IE4
Ambient Temperature	+60°C
Altitude	Up to 4000 m
Frame Size	63 to 355
Protection Class	IP55, IP56, IP65