YASKAWA CDBR-****D User & Installation Manual page 64

9 CDBR Braking Unit and LKEB Braking Resistor Selection
Figure 30
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.
ELCB (MCCB)
R
S
3-phase
T
MC MB THRX OFF
Braking resistor
overheat switch
(thermal relay trip)
1 2
MC MA
Fault relay contact
Figure 30 Fault Circuit Connection Diagram C (CDBR Braking Unit in parallel)
<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.
<3> Connect directly to the drive terminal or install a terminal block.
<4> Set one of the CDBR Braking Units as the master and set all others as slaves when using more than one CDBR
Braking Unit connected in parallel.
Note: Contact your Yaskawa representative or the nearest Yaskawa sales office when using a CDBR-XD
model Braking Unit with CDBR-X or CDBR-XB models.
64 YASKAWA ELECTRIC TOBP C720600 01E YASKAWA AC Drive Option CDBR-D, LKEB- Installation Manual
+3
MC
R/L 1
S/L 2
T/L 3
Drive
<1>
ON MC
MC
SA
(Ground)
THRX
SA
TRX
SA
TRX
Braking resistor
overheat switch
(thermal relay trip)
−
1
P
<3>
− +
B1 B2
IN (Slave)
SC
SB
OUT (Master)
OUT1
IN1
OUT2
IN2
CDBR Braking
<4>
Unit 1 (master)
MA MB MC EA EB EC
Fault output CDBR transistor
250 Vac, max.1 A short-circuit
30 Vdc, max.1 A detection output
min.5 Vdc, 10 mA 250 Vac, max.1 A
(to customer circuit) 30 Vdc, max.1 A
min.5 Vdc, 10 mA
(to customer circuit)
Braking resistor
overheat switch
(thermal relay trip)
LKEB
2 1
Braking
Resistor
B P
<2>
Unit
− +
B1
<3>
IN (Slave)
OUT (Master)
IN1
OUT1
IN2
OUT2
CDBR Braking
Unit 2 (slave)
<4>
MA MB MC EA EB EC
Fault output CDBR transistor
250 Vac, max.1 A short-circuit
30 Vdc, max.1 A detection output
min.5 Vdc, 10 mA 250 Vac, max.1 A
(to customer circuit) 30 Vdc, max.1 A
min.5 Vdc, 10 mA
(to customer circuit)
LKEB
2
Braking
Resistor
B
<2>
Unit
B2
SC
SB