Unit Parallel Connection - gefran BUy-1020 Manuel D'utilisation

3.4. Unit Parallel Connection

A minimum clearance of 2 inches is required when the braking units are
n !
ote
parallel connected (see figure 3.1.2).
! THE WRONG CONNECTIONS OF THE C and D POWER CABLES CAN
W
arning
DAMAGE THE UNIT AND/OR THE CONNECTED INVERTERS!
The braking unit is supplied with the power cables connecting the inverter to the C (red cable)
and D (black cable) terminals (cable length: 2 meters).
These cables must be used for installation. Do not substitute. If required,
C !
aution
they can only be shortened.
Figure 3.4.1-A: Parallel connection of several units (Master and Slave) to the Gefran Drive
L1
L2
L3
N
PE
F1
K1M
L1
~ ~
FILTER
U1 V1 W1 PE1
U2 V2 W2 PE2
M
3~
E
The number of the BUy-... to be used is limited only by the cable section of each braking unit
with reference to the terminals C and D of the inverter.
The last Slave unit must have inserted the jumper 9-10.
n :
ote
47-GB
DRIVE
C D
Black
Red
C D
76
76
75
75
BU y MASTER
9 7
5
S2=MASTER
S4=OFF 6
10 8
CR
BR
CR
1 3
BRAKING RESISTORS BRAKING RESISTORS
—————— Braking Unit ——————
C D 9 C
76
75
10
BU y SLAVE BU y
7
5
S2=SLAVE S2=SLAVE
S4=ON 6 S4=ON
8
CR
BR BR
3
1
BRAKING RESISTORS
D 9 C D
76
75
10
SLAVE BU y SLAVE
7
5
S2=SLAVE
6 S4=ON
8
CR
BR
3
1 1
BRAKING RESISTORS
9
10
3