INGENIA Titan GO, Product Manual

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TITAN GO Product Manual | Wiring and Connections
INGENIA | 2022-07-14 08:35:14 54
7.3 DC bus bulk capacitance
Certain applications will require additional DC bus capacitance. Typically extra capacitors are needed in
applications with long supply cables (with high parasitic inductance or resistance) or where the power supply does
not tolerate a high current ripple. Adding the extra capacitors reduces the ripple current on supply lines and
therefore reduces losses as well as electromagnetic interference (EMI). For best results, the capacitors should be
connected to the DC link terminals on the back of the Titan. Since this drive includes automatic precharge circuits,
there is no need for additional and bulky relays or precharge resistors.
For the Titan voltage and power ratings, Ingenia recommends metallized polypropylene film capacitors (MKP) ,
as they provide the best trade-off of capacitance, ripple current and long term reliability.
Electrolytic capacitors provide higher energy density and lower cost, however only good quality, low ESR and high
current ripple current are acceptable. Current ripple of the capacitor bank should be at least 0.4 * motor rated rms
current at its operating temperature. Electrolytic capacitors must have low series resistance and be prepared for
high current, otherwise they may overheat and be damaged. High power density applications could be also based
on ceramic capacitors, however cost would increase dramatically. Custom versions of Titan can be provided with
extra DC bus ceramic capacitance.
Next there are some suggested capacitors that should be attached to the DC link terminals (not to the input
supply):
Manufact
urer Part number Capacitanc
e /
T
echnology Rate
d
Volta
ge Photo Dimensi
ons Comments
Kemet C4DEFPQ6380A8TK 480 μ F
MKP
400
VDC Diameter
84.0 mm
x 66.0
mm
(height) Good trade off
of capacitance /
price. Height
exceeds the
Titan.
Panasonic EZT-VKCTYP1HA 581
μ
F
MKP
450
VDC 164.0
mm
x 115.0
mm
x 43.0
mm
(height)
Height is <
Titan. This
makes a low
profile solution.
EPCOS B25655P4707K031 700 μ F
MKP
450
VDC 237.0
mm x
72.0 mm
x50.0
mm
(height)
-
EPCOS B25655P4108K031 1000 μ F
MKP
450
VDC Highest
capacitance
option on metal
film. High cost.