Bosch Rexroth Indramat ECODRIVE DKC02.1 Series - Page 44

5-4 BZM auxiliary bleeder module ECODRIVE DKC02.1 Drive Controller
DOK-ECODRV-DKC02.1****-PRJ2-EN-P
1. Continuous regenerative power
PPP
RD BD, DK C BD, BZM
∑∑∑
≤+08, *
P
WW
t
RD
rot
+
pot
z
=
∑∑
*1000
Wnz
JJ
Last M
rot
2
Nutz
dec
=⋅⋅
⋅
⋅
+






2
60
2
π
Wghz
pot
= m
last ab
⋅⋅⋅
2. Peak regenerative power
PPP
RS BM, DKC BM, BZM
∑
≤+08,*
sservodrive the for lists selection see >-
RS
P
3. Regenerative energy (a single braking in the E-stop position)
WW W W
pot, max rot, max max, DKC max, BZM
+ * +
∑∑ ∑ ∑
≤ 08,
DKC data calFig.Techni see >-
DKC max,
W
BZM data Technical Fig. see >-
BZM max,
W
P RD : continuous regenerative power from the mechanical system
generated in continuous operation in kW
P BD, DKC : continuous regenerative power that the drive controller can
process in continuous operation in kW
P RS : peak regenerative power in kW
W rot : rotary energy in Ws
W pot : potential energy in Ws
W rot, max : max. occurring rotary energy in the E-stop position in Ws
W pot, max : max. occurring potential energy in the E-stop position in Ws
t z : cycle time in s
J Last : load torque in kgm²
J M : motor inertia, in kgm²
m Last: load weight in kg
W max, BZM : storable energy in BZM 01.1 in kWs
W max, DKC : storable energy in the DKC in kWs
g : 9.81 ms²
h : lowering dimension in m or number of braking actions
n Nutz : motor speed used in min
-1
z ab: number of drops per cycle
z dec: number of braking actions per cycle
Fig. 5-3: Check the conditions for regenerative power and regenerative energy
in a DKC connected to a BZM via a DC bus
up to 6 DKCs + 1 BZM
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