Rexroth EcoDrive Cs Drives Technical Data (Drive Controllers) 4-11
DOK-ECODR3-DKC**.3-CS*-PR02-EN-P
Performance Data
Power Balance (Controller and Motor)
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P
LN
P
Diss,Drive
P
Diss,Motor
P
mech
P
DC
P
1
P
2
P
3
P
4
P
OUT
P
LN
: input power
P
DC
: DC bus power
P
OUT
: output power of drive controller
P
mech
: power at the driven shaft of the motor
P
Diss,Drive
: power dissipation of drive controller
P
1
: rectifier losses
P
2
: IGBT losses
P
Diss,Motor
: power dissipation of motor
P
3
: brake losses
P
4
: motor losses
Fig. 4-9: Power balance (controller and motor)
The following performance data apply under the following conditions:
• ambient temperature: 40 °C
• installation altitude: 1000 m
• The braking resistor installed in the drive controller is not active
(because an external braking resistor is used, for example).
Device type P
LN
P
DC
P
Diss
P
mech
η
DKCxx.3-0004 165 140.3 64.5 100.5 60.9
DKCxx.3-0008 284.5 253.2 83.5 201 70.6
DKCxx.3-0012 491.6 457.1 83.4 408.2 83
DKCxx.3-0018 838.1 796.2 84.5 753.6 89.9
P
LN
: input power
P
DC
: DC bus power
P
Diss
: power dissipation of drive controller and motor
P
mech
: power at the driven shaft of the motor
η: efficiency
Fig. 4-10: Performance data under rated conditions
Courtesy of CMA/Flodyne/Hydradyne ▪ Motion Control ▪ Hydraulic ▪ Pneumatic ▪ Electrical ▪ Mechanical ▪ (800) 426-5480 ▪ www.cmafh.com