Siemens Simotics M-1FE1 Series, Руководство по настройке

Страница: 61 / 150

Motor components, characteristics and options
4.1 Motor components
SIMOTICS M-1FE1 synchronous built-in motors
Configuration Manual, 09/2019, A5E47872980B AA
59
Cool the built-in motor using a semi-open or closed cooling circuit.
Table 4- 4 Description of the cooling circuits
Definition Description
Closed cooling circuit The pressure equalization tank is closed and possesses an overpres-
sure valve. Oxygen cannot enter the cooling circuit. The coolant is only
routed through the motors and converters as well as through the com-
ponents required to dissipate heat.
Semi-open cooling cir-
cuit
Contrary to closed cooling circuits, oxygen can enter the coolant
through the pressure equalization tank.
Equipotential bonding
WARNING
Electric shock as a result of incorrectly routing the cooling water pipes
If electrically conductive cooling water pipes come into contact with live parts, this can
cause an electric shock leading to death or severe injury.
•
Ensure adequate insulation.
•
Securely fasten the pipes.
● Provide all components in the cooling system (motor, heat exchanger, piping system,
pump, pressure equalization tank, etc.) with equipotential bonding.
● Implement the equipotential bonding using a copper rail or finely stranded copper
cable with the appropriate conductor cross-sections.
Materials used in the motor cooling circuit
● Match the materials in the cooling circuit to the materials in the motor.
Table 4- 5 Materials used in the motor cooling circuit
Cooling jacket design Material
Cooling jacket Steel or aluminum (see the dimension drawing)
O rings FKM (ISO 1629)