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6. Installation
6 - 10
6-2-5 Heating value
The heating value of each servo drive unit is the heating value at stall output.
Heating value [W] Heating value [W] Servo drive unit type
MDS-R-
Inside
panel
Outside
panel
Servo drive unit type
MDS-R-
Inside
panel
Outside
panel
V1-20 15 31 V2-2020 26 63
V1-40 21 52 V2-4020 32 83
V1-60 27 74 V2-4040 38 105
V1-80 36 105 V2-6040 45 125
V2-6060 50 150
V2-8040 53 158
V2-8060 60 180
V2-8080 68 210
POINT
Design the panel's heating value taking the actual axis operation (load rate) into
consideration. With a general machine tool, the servo drive unit's load rate is
approx. 50%, so the heating values inside the panel are half the values shown
above.
Calculation example: When using MDS-R-V1-20 and MDS-R-V2-2020
Total heating value = (15 + 31) + (26 + 63) = 135 [W]
Heating value in panel = 15 x 0.5 + 26 x 0.5 = 20.5 [W]