Delta C2000 Series User Manual page 82

Terminals for connecting DC reactor, external brake resistor, external brake resistor
and DC circuit
This is the terminals used to connect the DC reactor to improve the power factor. For

the factory setting, it connects the short-circuit object. Please remove this short-circuit
object before connecting to the DC reactor.
Connect a brake resistor or brake unit in applications with frequent deceleration

ramps, short deceleration time, too low brake torque or requiring increased brake
torque.
The external brake resistor of Frame A, B and C should connect to the terminals (B1,

B2) of AC motor drives.
For those models without built-in brake resistor, please connect external brake unit

and brake resistor (both of them are optional) to increase brake torque.
When the terminals +1, +2 and - are not used, please leave the terminals open.

DC+ and DC- are connected by common DCBUS, please refer to Chapter 5-1 (Main

Circuit Terminal) for the wiring terminal specification and the wire gauge information.
Please refer to the VFDB manual for more information on wire gauge when installing

the brake unit.
DC rea ct or (o ption al)
+ 1 + 2
Figure 5-2
Brak e re sistor
(opt ional)
Brak e re sistor
(optional)
B1 B 2 +
Figure 5-3
5-3
Chapter 5 Main Circuit TerminalsC2000
BR
Brak e un it
VFDB
(o ption al)
-