Delta ASDA-A3 Series User Manual page 92

ASDA-A3
 Connecting multiple servo drives (in parallel)
Using a common DC Bus can make efficient use of the regenerative energy. For instance,
while one of the axes is decelerating, the regenerative energy can be supplied to other
axes. If you need to connect servo drives of different power levels, only models of similar
power levels can be connected; moreover, each servo drive should connect to a
regenerative resistor (or regenerative unit).
Example: if there is a 400 W servo drive in the current system, you can add servo drives of
the same or different power level which ranges from 200 W to 750 W. This is because the
system can only contain servo drives of up to two different power levels.
EMI filter
Note:
MCCB: molded case circuit breaker
MC: magnetic contactor
SPD: surge protection device
Power 1: power on
Power 2: power off
ALRM_RY: alarm relay
ALRM_RY_A: normally open contact of the alarm relay
T S R
MCCB
Power 1
MC
MC
ALRM_RY_A
Power 2 MC
SPD
R
S
T
L
1C
L
2C
P1
P2
R
S
T
L
1C
L
2C
P1
P2
P3
Regenerative
resistor
C
P3
Regenerative
resistor
C
Wiring
3
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