Space Required For Ventilation; Thermal Motor Protection; Thermal Motor Protection Using Ptc Thermistors (Option); Table 4-1 Space Required To Ventilate The Machine - Siemens SIMOTICS FD 1MM1 Series Operating And Installation Instructions

Preparations for use

4.4 Space required for ventilation

4.4 Space required for ventilation
Maintain a clearance for the air intake where the machine is located (A). Provide sufficient
space where the machine is located so that the fan cover can be removed and mounted as
required. The necessary space requirements are listed in the following table:
Table 4-1
4.5

Thermal motor protection

The machine is equipped with measuring equipment for direct monitoring of the motor
temperature to protect the machine against overload during operation. Plan a corresponding
circuit for monitoring.
4.6

Thermal motor protection using PTC thermistors (option)

The machine is equipped with PTC thermistors for direct monitoring of the motor temperature
to protect the machine against overheating during operation. Plan a corresponding circuit for
monitoring.
32
Space required to ventilate the machine
Type
1L.....-3A...-....
1M.....-3A...-....
1L.....-3B...-....
1M.....-3B...-....
1L.....-4A...-....
1M.....-4A...-....
1L.....-4B...-....
1M.....-4B...-....
Space requirement / clearance A
200 mm
220 mm
260 mm
320 mm
SIMOTICS FD 1MM1
Operating Instructions 02/2019