Tions - Bosch Rexroth IndraDrive CsDrive System with HCS01 Project Planning Manual

86/341 Bosch Rexroth AG
Combining the individual components
P
mHa
M
n
n
n
2. Determine DC bus power from motor power and efficiency
P
DC
M
eff
n
m
k
3. Add powers of all axes at common DC bus and put them into relation to
rated power of supply unit
⇒ Partial load of P
DC_cont
4. Determine power factor TPF for partial load (TPF = Total Power Factor)
For the value TPF at rated power and TPF
see technical data (mains voltage) of the component.
5. Calculate mains connected load
S
LN
P
DC
TPF
6. Calculate mains-side phase current
3-phase:
1-phase:
I
LN
S
LN
U
LN
7. Select mains contactor
8. Determine mains circuit breaker and line cross section
See chapter "Dimensioning the line cross sections and fuses " on page
87
DOK-INDRV*-HCS01******-PR05-EN-P
Rexroth IndraDrive CsDrive Systems with HCS01
Mechanical nominal power for main drives (shaft
output) [kW]
Nominal motor torque [Nm]
Nominal motor speed [min
Required DC bus continuous power [W]
Effective torque in Nm
Average speed in min
-1
Factor for motor and controller efficiency = 1.25
is available
10
Mains connected load [VA]
DC bus continuous power [W]
Total Power Factor λ
Mains-side phase current in [A]
Mains connected load [VA]
Voltage between phases of mains [V]
-1 ]
(at 10% of rated power),