Braking Units With A Common Brake Resistor - Lenze EMB9351-E Instructions De Mise En Service

7.7.2

Braking units with a common brake resistor

+UG
-UG
PE
F1-F2
0
+UG -UG
Maste
E1
Fig. 16 Parallel operation of 2 brake choppers on one brake resistor
Z1
Z2
Z3
F1 ... F4
X1
JRB
0
1
EDBMB935X DE/EN/FR 12.0
Braking units with a common brake resistor
"
"
JRB
RB1 RB1 RB2 RB2
"
"
PE RB1 RB2
9352
Z1
r
E2 A1 A2
£
£
2m
Brake chopper 1 = master
Brake chopper 2 = slave
Brake resistor
DC−bus fuses
Terminal strip
Thermal contact has to be integrated into the temperature monitoring
Length difference of the four cables: £ 0.05 m
Cable length of braking unit − brake resistor: £ 8 m
l
Electrical installation
Parallel connection
Z3
1
"
"
PE
X1
"
"
RB1 RB2
Slave
E1
2m
" "
"
"
F3-F4
0
PE +UG -UG
9352
Z2
E2 A1 A2
9350br_013
7
109