Restrictions When Using The Equipment At Altitudes Exceeding 1000 M And Up To 2000 M Above Sea Level; Machine Accuracies - Mitsubishi Electric MELSERVO HG-MR Instruction Manual

2. INSTALLATION
(2) Oil seal (including oil seal used on the reducer)
Oil seals must be changed in 5,000 hours of operation at rated speed as a guideline. They must also be
changed if oil leakage, etc. is found during inspection.
The functions have no problem even if an oil seal may sound during operation.
2.10 Restrictions when using the equipment at altitudes exceeding 1000 m and up to 2000 m above sea
level
As heat dissipation effects decrease in proportion to decreasing air density, use the equipment within the
effective load ratio and regenerative load ratio shown in the following figure.

2.11 Machine accuracies

The following table indicates the machine accuracies of the servo motor around the output shaft and
mounting. (except the optional products)
Accuracy [mm]
Runout of flange surface to output
shaft
Runout of fitting OD of flange surface
Runout of output shaft end
[%]
100
95
0
0
1000
Altitude
Measuring
100 × 100
position
130 × 130
or less
a) 0.05
b) 0.04
c) 0.02
a) A
b)
A
A
2 - 7
[m]
2000
Flange size
176 × 176 to
280 × 280
250 × 250
0.06 0.08 0.08
0.04 0.06 0.08
0.02 0.03 0.03
c)
390 × 390 490 × 490
0.08 0.08
0.08 0.08
0.06 0.08