Chapter 3 Precautions for Use
3–3
3-1-2 Oil and waterproofing measures
The HC motor satisfies the IEC Standards IP65 (dust prevention jet flow type) protection format as a
single motor unit.
(Reference)
IP65 test details
(1) Protect in respect to external solids
IP6
□
: Dust-proof type, and dust cannot enter.
(2) Protection in respect to entry of water IP
□
5 : Protection from jet flows in all directions. Water
is flowed in all directions from a distance of 3m.
(Flow rate 12.5 liters/min., pressure 30kPa, time
3 minutes)
Note that the following caution is required during actual use.
1)
These standards are the short-time performance standards, and do
not guarantee continuous environment protection characteristics. If
the motor could be in constant contact with oil or water, and the matter
could enter, always provide a cover, etc. Note that the IP class does
not indicate the corrosion resistance level.
2)
When a gear box is installed on the servomotor, make sure that the oil level height from the center
of the shaft is higher than the values given below. Open a breathing hole on the gear box so that the
inner pressure does not rise.
Servomotor
Oil level (mm)
HC52, 102, 152
HC53, 103, 153
20
HC202, 352, 452, 702
HC203, 353, 453, 703
25
HC902
30
HC103R, 153R, 203R
HC353R, 503R
20
3) When installing the servomotor horizontally, set the power supply cable and detector cable to face
downward.
When installing vertically or on an inclination, provide a cable trap.
CAUTION
1. The servomotors, including those having IP65 and IP67 specifications, do not
have a waterproof (oil-proof) structure. Do not allow the machine to be
constantly wetted or submerged in water or oil, and make sure that these
substances do not enter the motor. Note that accumulation of cutting chips
will also cause oil to seep into the motor.
2. When the motor is installed facing upwards, take measures on the machine
side so that the gear oil does not flow onto the motor shaft, etc.
3. Do not remove the detector from the HC motor. (The detector installation
screw is treated for sealing.)
Servomotor
Gear
Lip
Oil level
V-ring
Oil or water
Servomotor
Cable
trap
