Yaskawa AC Drive-Option BRAKING UNIT-CDBR Spec.D User Manual
Page 69
9 CDBR Braking Unit and LKEB Braking Resistor Selection
YASKAWA ELECTRIC TOBP C720600 01C 1000-Series Option CDBR-D, LKEB- Installation Manual
69
Figure 32
Figure 32 Fault Circuit Connection Diagram D
(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.
The motor may not stop within the deceleration time if this setting is not changed.
<3> When connecting multiple LKEB Braking Resistor units, wire the thermal relay trip contacts in parallel.
P
B
1
2
1
2
P
B
MA MB MC
EA EB EC
<2>
ELCB (MCCB)
R
T
S
MC
R/L
1
S/L
2
T/L
3
3
M
U/T
1
V/T
2
W/T
3
ON
OFF
THRX
SA
1
2
TRX
MC MA
MC
TRX
MC
SA
SA
THRX
MC
MB
<1>
B1
B2
B
P
1
2
SC
SB
Braking resistor
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)
Fault output
250 Vac, max.1 A
30 Vdc, max.1 A
min.5 Vdc, 10 mA
(to customer circuit)
Level
Sensor
CDBR Braking Unit
LKEB Braking
Resistor Unit
3-phase
Drive
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.
Fault relay contact
Braking resistor
overheat switch
(thermal relay trip)
(Ground)
<3>
<3>
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