bonitron M3345D, Customer Reference Manual

Page: 9 / 32

User’s Manual
9
2.
P
RODUCT
D
ESCRIPTION
/ F
EATURES
B
onitron’s M3345D Diode Sharing Modules are designed to offer a low cost solution for
sharing regeneration or dynamic braking for multiple drives. Traditionally, a common DC
bus for the drives and regen modules has required that the drives be connected to a
common bus power supply. If the drives are directly connected to the AC line, the parallel
input bridges can cause circulating currents. This causes overheating and shortened drive
life. The M3345D modules provide blocking diodes that isolate the drives from each other
while establishing a shared, common regen bus. This eliminates circulating currents with
parallel input bridges.
Please see the Application Notes in Section 7 for additional information.
2.1.
R
ELATED
D
OCS
/ P
RODUCTS
M3345 Line Regen Module
M3345CBM (Common Bus Modules)
M3460D Diode Sharing Modules (Used with Bonitron M3534 and M3460 Ride-Thru
Modules)
2.2.
P
ART
N
UMBER
B
REAKDOWN
Figure 2-1: Example of M3345D Part Number Breakdown
B
ASE
M
ODEL
N
UMBER
The Base Model Number for these Diode Modules is M3345D.
DC B
US
A
MPS
The DC Bus Amps Rating indicates the current rating of each individual drive.
The DC Bus Amps Rating is entered directly into the part number and will be either 2
or 3 digits.
Table 2-1: DC Bus Amps Codes
R
ATING
C
ODE
DC B
US
A
MPS
04 4
10 10
30 30
60 60
90 90
200 200
B
A S E
M
O D E L
D
R I V E
DC B
U S
A
M P S
C
H A S S I S
S
T Y L E
M
A X I M U M
# O
F
D
R I V E S
M3345D 60 P 4