YASKAWA CDBR-****D User & Installation Manual page 65

9 CDBR Braking Unit and LKEB Braking Resistor Selection
Figure 31
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 OFF
THRX
Braking resistor
overheat switch
(thermal relay trip)
1
2
MC MA
Fault relay contact
(CDBR Braking Unit and LKEB Braking Resistor 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> Wire the thermal relay trip contacts in parallel when connecting multiple LKEB Braking Resistor units.
YASKAWA ELECTRIC TOBP C720600 01E YASKAWA AC Drive Option CDBR-D, LKEB- Installation Manual
MC
R/L 1
S/L 2
T/L 3
<1>
ON
MC
MC
SA
THRX
SA
TRX
SA
TRX
Figure 31 Fault Circuit Connection Diagram D
+
Level
Sensor
-
CDBR Braking Unit
MA MB MC EA EB EC
Fault output
250 Vac, max.1 A
30 Vdc, max.1 A
min.5 Vdc, 10 mA
(to customer circuit)
-
+3
U/T 1
V/T 2
W/T 3
Drive
LKEB Braking
Resistor Unit
P
B1
B
B2
SC
Braking resistor
SB
overheat switch
(thermal relay trip)
CDBR transistor
short-circuit
detection output
250 Vac, max.1 A
30 Vdc, max.1 A
min.5 Vdc, 10 mA
(to customer circuit)
P
M
B
P
(Ground)
B
<2>
1 2
1 2
<3>
1 2
<3>
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