Level - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

2.6
Restrictions when using the servo amplifiers at
altitude exceeding 1000 m and up to 2000 m above
sea level
Effective load ratio and regenerative load ratio
Heat dissipation effects decrease in proportion to decreasing air density, and hence use the servo amplifiers with the effective
load ratio and the regenerative load ratio within the following range.
[%]
100
95
0
0 1000
Altitude
When closely mounting the servo amplifiers, operate them at the ambient temperatures of 0  to 45  or at 75% or smaller
effective load ratio. Page 77 Installation direction and clearances
Input voltage
Generally, withstand voltage decreases as altitude increases; however, there is no restriction on the withstand voltage. Use in
the same manner as in 1000 m or less. Page 30 Servo amplifier standard specifications
Parts having service life
■Smoothing capacitor
The capacitor will reach the end of its life in 10 years of continuous operation in air-conditioned environment (30  ambient
temperature or less).
■Relays
There is no restriction. Use in the same manner as in 1000 m or less. Page 80 Parts having service life
■Servo amplifier cooling fan
There is no restriction. Use in the same manner as in 1000 m or less. Page 80 Parts having service life
2.6 Restrictions when using the servo amplifiers at altitude exceeding 1000 m and up to 2000 m above sea level
2000 [m]
2
2 INSTALLATION
81