
6.HEAT DISSIPATION A-72562EN-027
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6 HEAT DISSIPATION
The amount of heat dissipation by the SVM depends on the SVPM
model and the output power and the current that flows through the
motor. For the current that flows through a motor, reference the
continuous rated current of each motor. and output power (refer to
each motor descriptions.)
(1) Total amount of heat dissipation
The total amount of heat dissipation by the SVM is calculated
according to the following expression:
Total amount of heat dissipation
=a + Ka1 x b1 + Ka2 x b2 + Ka3 x b3+ Ka4 x b4+ Ka5 x b5
a : Amount of heat dissipation determined by the SVM
model [W]
Ka1~ Ka5: Coefficient determined by the SVPM
b1 : Total output og the motors connected 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 number
a
[W]
k
[W/Arms]
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