
10.HEAT DISSIPATION SVPM B-65322EN/02
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10 HEAT DISSIPATION
The amount of heat generated in an SVPM varies depending on its
model, the current flowing through the motor, and the motor output.
(Refer to the respective motor description manuals for the current and
output of each motor.)
(1) Total amount of heat dissipation
The total amount of heat dissipation by the SVPM is calculated
according to the following expression:
Total amount of heat dissipation
= a + Ka1×b1 + Ka2×b2 + Ka3×b3 + Ka4×b4 + Ka5×b5
a : Amount of heat dissipation determined by the SVPM
model [W]
Ka1 to Ka5 : Coefficient determined by the SVPM
b1 : Total output of motors connected to the SVPM [kW]
b2 : Current flowing through the spindle motor [Arms]
b3 : Current flowing through the servo motor of L-axis [Arms]
b4 : Current flowing through the servo motor of M-axis [Arms]
b5 : Current flowing through the servo motor of N-axis [Arms]
SVPM (total amount of heat dissipation)
Name Specification a [W] Coefficient
Ka1 14.3
Ka2 5.8
Ka3 5.0
SVPM2-5.5i
H201 22
Ka4 5.0
Ka1 14.3
Ka2 5.4
Ka3 5.0
SVPM2-11i
H202 22
Ka4 5.0
Ka1 13.1
Ka2 5.5
Ka3 4.6
SVPM2-15i
H203 22
Ka4 4.6
Ka1 14.3
Ka2 5.8
Ka3 5.0
Ka4 5.0
SVPM3-5.5i
H301 24
Ka5 4.6
Ka1 14.3
Ka2 5.4
Ka3 5.0
Ka4 5.0
SVPM3-11i
H302 24
Ka5 4.6