Cdbr Braking Unit And Lkeb Braking Resistor Selection - YASKAWA CDBR-****D User & Installation Manual

9 CDBR Braking Unit and LKEB Braking Resistor Selection

9 CDBR Braking Unit and LKEB Braking Resistor Selection
◆
CDBR Braking Unit and LKEB Braking Resistor Selection
Select a CDBR Braking Unit and LKEB Braking Resistor Unit based on application-specific
requirements and the selected AC drive.
Refer to the local catalog for selections based on other drive models.
◆
CDBR Braking Unit Fault Circuit Connection Diagrams
Figure 28
Wiring sequence should shut off power to the drive
when a CDBR transistor short-circuit detection
output is triggered or a braking resistor unit
overheat switch is triggered.
MC MB
Figure 28 Fault Circuit Connection Diagram A (LKEB Braking Resistor Unit)
<1> 200 V class drives do not require a control circuit transformer.
<2> Set L3-04 to 0 or 3 to disable Stall Prevention during deceleration when using an LKEB Braking Resistor Unit.
Enabling the function under these conditions may prevent the drive from stopping within the specified
deceleration time.
62 YASKAWA ELECTRIC TOBP C720600 01E YASKAWA AC Drive Option CDBR-D, LKEB- Installation Manual
ELCB (MCCB)
R
3-phase
S
T
OFF ON
THRX MC
Braking resistor
MC
SA
overheat switch
(thermal relay trip)
THRX
1 2
SA
TRX
SA
MC MA
TRX
Fault relay contact
Braking resistor
overheat switch
(thermal relay trip)
1
P
B1
MC
R/L1
S/L2
T/L3
<1>
Drive
LKEB Braking
2
Resistor Unit
<2>
B
B2
U/T1
V/T2 M
W/T3
(Ground)