3-4
INSTALLATION AND MAINTENANCE
3-1 Installation
- SV Series User’s Manual -
■ How to Install
The following points must be followed for servo motor installation.
● Mounting direction
Servo motor can be installed both in horizontal and vertical direction.
• For installation with upward shaft end, cable trap must be designed to prevent oil and water from entering servo
motor.
• For installation with downward shaft end, be sure to take measures to prevent oil or water from entering servo motor
from the shaft connecting part.
● Installation regulation
When servo motor is covered by device frame or a heating unit is installed around servo motor, the following
measures must be taken.
• To lower the load ratio.
• To check the heat dissipation condition of servo motor.
• To perform forced cooling for servo motor by installing cooling fan.
• Use condition for SV-005/010/020/040/075.
Ratings of servo motor (rated output, rated torque, rated rotation speed) refer to the continuous permissible values
under the condition that heat sink is mounted and ambient temperature is 40°C.
Sufficient heat dissipation area must be ensured to prevent the temperature of servo motor from rising when servo
motor is installed on a small device. Heat sink must be installed or derating must be considered when temperature
rise needs to be controlled within a suitable range.
The relationship between heat sink and derating is shown as follows.
• Use condition for SV-100A/150A/200A/300A/500A
"2-4 Servo Motor Specifications", Page 2-12
Level
Cable trap
Shaft end upwards Shaft end downwards
100 150 200 250 300
100%
80%
60%
40%
20%
Derating
Derating
Length of single side of heat sink [mm]
Derating
Length of single side of heat sink [mm]
50 100 150 200 250
100%
80%
60%
40%
20%
0 50 100 150 200 250
100%
80%
60%
40%
20%
0
Length of single side of heat sink [mm]
50W/100W
(SV-
ƶ
005
ƶƶ
/
ƶ
010
ƶƶ
)
200W
(SV-
ƶ
020
ƶƶ
)
400W
(SV-
ƶ
040
ƶƶ
)
750W
(SV-
ƶ
075
ƶƶ
)
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