YASKAWA GA800 Series - Drive Faults and Causes (Continued)

Electrical Installation
3
3.9 Braking Resistor Installation
YASKAWA SIEPC71061737B GA800 Drive Technical Reference 109
Figure 3.57 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, and 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.
• A junction terminal is necessary to connect a braking unit (CDBR-series) to the drive models 2169, 2211, 4140, or 4168. Do wiring by
installing a junction terminal that can connect to wires within the connectable range specified for the drive, peripheral devices, and options.
The following table shows recommended junction terminals. Contact Yaskawa or your nearest sales representative for more information
about selection and installation of the junction terminal.
Drive Model
Junction terminal model
Manufacturer: Mibu Denki Industrial Co., Ltd.
2169, 4140, 4168 DTK-200N × 2P
*1
2211 DTK-300N × 2P
*1
*1 The junction terminal must have two or more poles.
Figure 3.58 Install a Braking Unit: CDBR-Type/Braking Resistor Unit: LKEB-Type
■ Braking Unit Connection Wire Gauge (CDBR-Type)
To comply with IP20 when you connect the braking unit (CDBR-type) to the drive models 2257 to 2415 or 4208 to
4720, refer to Table 3.17 and Table 3.18 to select the wires.