REXROTH EcoDrive Cs Project Planning Manual page 42

4-12
Technical Data (Drive Controllers)
Dimensioning
Operation at Installation
Altitudes > 1000 m
Derating
The power data apply to motors and drive controller within the specified
ambient and operating conditions (see "Fig. 4-7:Ambient and operating
conditions").
Differing conditions reduce the performance data
• of the drive controller:
•
allowed continuous DC bus power
•
continuous braking resistor power
•
continuous current
• of the motor:
•
power
•
continuous torque at standstill
•
S1 continuous torques
•
short-time service torque M
according to the following diagrams.
Note: If deviating ambient temperatures and higher installation
altitudes occur simultaneously, both utilization factors must be
multiplied. The installation altitude must only be taken into
account once, deviating ambient temperatures must be taken
into account separately for motor and drive controller.
According to restrictions of the conditions, the following derating applies:
Note: In the following it is understood that the other conditions (max.
ambient temperature, no internal braking power, three-phase
operation) are kept!
The maximum allowed installation altitude is 2000 m. Operation at an
installation altitude of more than 1000 m causes derating due to reduced
atmospheric pressure.
0,8
0,6
Fig. 4-11: Derating at installation altitudes > 1000 m
Rexroth EcoDrive Cs Drives
KB
1
0 1000 2000
installation altitude above
sea level in m
auslastbarkeit_hoehe.FH7
DOK-ECODR3-DKC**.3-CS*-PR02-EN-P