Unitek DS-400.2 Series, Руководство пользователя

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Electrical installation
DS 400-2 04/2019 - V01 34
Ba
lla
st
ci
rc
ui
t D
S405 / D
S412
/ D
S420
4.11 Ballast circuit DS405 / DS412 / DS420
DS-BAx-DPC / E-DS-400-ballast-3
The energy arising during the braking operation is fed back into the dc bus circuit. The bus circuit
Elkos can store only little energy.
Any surplus of energy is transformed into heat in the ballast resistor.
The internal ballast resistance is rated for drives without centrifugal mass.
Always use external resistors for centrifugal masses or in case of uncertainties concerning the
rating.
Type DS 405 412 420
Installed resistor Ohm 80 51 42
Continuous power W 50 100
Pulse power 1s kW 1 2.5
External resistor min. Ohm 80 51 40
Fuse F2
AF 10 16 25
Note:
For DS420:
Observe the motor centrifugal mass (rotor moment of inertia).
The power of the internal ballast resistance is only 100 W.
Install an external ballast resistor.
Caution: Ballast resistors may become very hot !
-UB
+UB
BAL
X3:1
X3:2
X3:10
X3:11
F2-1
F2-2
DSxx/BAxx
Power-Mod
ul
ext. regen
resistor
bridge
with internal
regen resistor
regen
fuses