Table of Contents
Advertisement
ECODRIVE DKC02.1 Drive Controller
6
CZM auxiliary capacitance module
6.1
Dimensioning
Calculating the rotary energy of
an application
Storable energy in the DKC with
a connected CZM01.1
DOK-ECODRV-DKC02.1****-PRJ2-EN-P
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
When braking the drive, the rotary energy available in the mechanics is
released as regenerative energy in the DC bus of the DKC. It can be
• released in the form of heat via the bleeder module or auxiliary bleeder
integrated into the DKC
- or -
• stored as energy in the DKC with a connected auxiliary capacitance
module and reused for subsequent acceleration procedures. This re-
duces the power dissipated in the cabinet, and its own energy con-
sumption is reduced.
For successful implementation while avoiding an unnecessary power loss
in the cabinet, note the following:
Fig. 6-1: Condition for avoiding power dissipation from the regenerative energy
J
Last
=
W
rot
W
:
rotary energy of the application in Ws
rot
n
:
maximum effective speed in min-1
Nutz
J
:
load torque of the application in kgm²
Last
J
:
motor inertia
M
Fig. 6-2: calculating the rotary energy
=
W
ZW, DKC+CZM
W
:
storable energy in the DKC with CZM in Ws
ZW, DKC+CZM
C
:
capacity of the CZM in mF (value = 1.0 mF)
CZM
C
:
DC bus capacity of the DKC in mF (value = 0.15 mF)
DKC
U
:
response threshold of the bleeder in DKC in V (value = 820)
B
nominal voltage (DC bus) in V (UZW = ( √2) • 0.98 U
U
:
ZW
U
:
line voltage (effective value) in V
N
Fig. 6-3: Calculating the storable energy with a CZM01.1
CZM auxiliary capacitance module
≤
W
W
rot
ZW, DKC+CZM
+
J
M
⋅
n
Nutz
2
+
(
C
C
⋅
DKC
CZM
2
U
B
2
6-1
2
⋅
π
2
⋅
60
)
−
⋅
2
3
- U
10
ZW
)
N
- Quick Links:
- Electrical Connections
- Fatal Errors
- Other Errors
Hide quick links:
Advertisement
Table of Contents
