LinX Series Linear Motor - User Guide
20
D-000168 Rev 02
ANCA Motion
TLMS-18P
TLMS-27P
TLMS-36P
TLMS-36H
Maximum Shaft Temperature (°C)
130
130
130
130
Maximum Winding Temperature (°C)
130
130
130
130
Motor Temperature Class
H (180°C)
H (180°C)
H (180°C)
H (180°C)
Thermal Time Constant (minutes)
Fluid/Air
40 / 80
45 / 90
50 / 100
50 / 100
Fluid Cooling Medium Temperature (°C)
25
25
25
25
Flow rate for fluid cooling (litres/minute)
Water/Oil
2.0 / 4.0
2.0 / 4.0
2.0 / 4.0
2.0 / 4.0
Table 5-2 - Thermal Specifications
WARNING:
The maximum shaft temperature is a function of permanent magnet characteristic limitation,
and should never be exceeded. Exceeding this limit can result in demagnetization of some or all of the
magnets inside the shaft.
WARNING:
Exceeding the maximum winding temperature will reduce the lifespan of the motor and
potentially cause overheating of the shaft if the forcer is stationary.
Air-Natural Cooling Behaviour
5.1.1
For Air-Natural cooling, the forcer is installed without the external water jacket.
The forcer is intended to be operated
under “Class B” conditions, which is a maximum winding temperature of
130°C. This 130°C is made up of an ambient air temperature of 25°C, a winding temperature rise of 100°C and a
winding hotspot allowance of 5°C. Under these conditions, the external surface of the forcer will reach a
temperature between 75 and 80°C. The performance figures for Air cooling in
Section 5.1
are based on these
conditions.
Fluid Cooling Behaviour
5.1.2
For Fluid cooling, the forcer must be fitted with an external fluid cooling jacket. The forcer is intended to be
operated under “Class B” conditions, which is a maximum winding temperature of 130°C. This 130°C is made up
of a coolant temperature of 25°C, a winding temperature rise of 100°C and a winding hotspot allowance of 5°C.
Under these conditions, the external surface of the forcer (inside the jacket) will reach a temperature of
approximately 30°C.
Table 5-2
shows the required flow rates for both Water and Oil in order to satisfy the fluid
cooling requirements.
Force vs. Speed Characteristics
5.2
In addition to the limits listed in
Section 5.1
, the maximum force achievable at a particular speed will be limited by
the voltage rating of the drive. The motor force limits as a function of velocity with DC bus voltages of 300V and
600V are plotted in the figures below.
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