2.18 Braking Resistor Installation
120 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Figure 2.121 Install a Braking Resistor Unit: LKEB-Type
◆ Install a Braking Unit Connection: CDBR-Type
To install a CDBR type braking unit, connect terminal +3 on the drive to terminal + on the braking unit. Then
connect terminal - on the drive to terminal - on the braking unit. Terminal +2 on the drive is not necessary for
CDBR-type braking unit connections.
Set L8-55 = 0 [Internal DB TransistorProtection = Disable].
Note:
To install a CDBR-type braking unit to the drive models 2004 to 2138 and 4002 to 4168 that have a built-in braking transistor, connect
drive terminal B1 to terminal + on the braking unit.
Figure 2.122 Install a Braking Unit: CDBR-Type/Braking Resistor Unit: LKEB-Type
◆ Connect Braking Units in Parallel
To connect two or more braking units in parallel, refer to Figure 2.123 for wiring and connector selections.
Braking units have connectors to select master or slave. On the first braking unit, select the master side. On the
second unit and all subsequent units, select the slave side.
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