Cooler Connection For Motors With Integrated Cooling - Siemens SIMOTICS T-1FW6 Configuration Manual

Configuration
6.4 Installation
6.4.9.2

Cooler connection for motors with integrated cooling

Note
Significance of the 7th position in the Article No.
In this chapter, for certain 1FW6 Article Nos., an "x" should be inserted at the 7th position. This
means that the information provided for the specific cooler connections and the cooling
connection adapter for the particular frame size also applies to 1FW6 High Speed built-in torque
motors.
For built-in torque motors with integrated cooling, no alterations need to be made on the
machine construction for connecting the cooler.
You can directly connect the cooler through the appropriate fittings (1/8" pipe thread,
DIN 2999). Motors, sizes 1FW6050 and 1FW6060 are connected to the cooling system using
plug connections that can be simply released. For motors equipped with a precision and
main cooler, each cooling circuit can be separately fed and connected/disconnected.
Suitable connectors are required for connecting the hoses.
Note
Keep the pressure loss for motors with precision and main cooler low
Apply measures to keep the pressure loss low:
• Connect the precision and main coolers in parallel using the cooling connection adapter
immediately before the cooler connections.
• Use cooling lines with the largest possible cross-section for coolant intake and return.
• Avoid reducing cross-sections as a result of unnecessary coupling locations.
The optional cooling connection adapter that can be ordered can be connected via a 1/4"
pipe thread (DIN 2999) either axially or radially (on the outside).
Note
Cooling principle
Every cooler has an inlet and a return. As far as cooling is concerned, it does not make any
difference in which direction the coolant flows through the cooling circuit. Which connection
point is used as the inlet and which as the return can be freely selected.
In a series connection, the coolant must flow through the precision cooler first and then the main
cooler. Otherwise, the coolant already warmed up in the main cooler would enter the precision
cooler and have a negative impact on the cooling effect.
NOTICE
Destruction of the motor
Most of the motors have a permanently mounted cooling connection plate. If you remove the
cooling connection plate, the motor could be destroyed.
• Do not remove the cooling connection plate.
132
1FW6 Built-in torque motors
Configuration Manual, 09/2022, A5E52220645B AA