YASKAWA CDBR-****D User & Installation Manual page 63

9 CDBR Braking Unit and LKEB Braking Resistor Selection
Connect drive terminal B1 to the positive terminal on the CDBR Braking Unit. Connect the
negative drive terminal to the negative terminal on the CDBR Braking Unit when
connecting a separately-installed type CDBR Braking Unit to drives with a built-in braking
transistor. The B2 terminal is not used in this example.
Note: Refer to the specific drive manual for details on the drive with built-in braking transistor.
Figure 29
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.
3-phase
MC MB
THRX
Braking resistor
overheat switch
(thermal relay trip)
1
Fault relay contact
Figure 29 Fault Circuit Connection Diagram B (CDBR Braking 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.
YASKAWA ELECTRIC TOBP C720600 01E YASKAWA AC Drive Option CDBR-D, LKEB- Installation Manual
ELCB (MCCB)
MC
R
S
T
<1>
OFF ON
MC
MC
SA
THRX
2
SA
TRX
SA
MC MA
TRX
IN1
+ +
- -
CDBR Braking Unit
MA MB MC
Fault output
250 Vac, max.1 A
30 Vdc, max.1 A
min.5 Vdc, 10 mA
(to customer circuit)
-
+3
R/L 1
S/L 2
T/L 3
Drive
LKEB Braking
Resistor Unit
IN2 OUT1 OUT2
P
B1
B
B2
Level
sensor
SC
Braking resistor
SB
overheat switch
(thermal relay trip)
(Ground)
EA EB EC
CDBR transistor
short-circuit
detection output
250 Vac, max.1 A
30 Vdc, max.1 A
min.5 Vdc, 10 mA
(to customer circuit)
U/T 1
V/T 2
M
W/T 3
(Ground)
<2>
1 2
63