Yaskawa LEGEND Digital Torque Amplifier - Manual (Page 21)

2.1 Main Circuit Wiring
10
B1, B2 or
B1, B2, B3
External Regen
Resistor Connection
Terminal
100W/400W
Connection not normally needed.
Connect an external regen resistor (provided by
customer) between B1-B2 if regen capability is
insufficient.
(Note）There is no B3 terminal.
1.0kW/1.5kW B2-B3 is normally shorted (using the integrated
regen resistor)
If the capacity of the internal regen resistor is
insufficient, connect an external regen resistor
(provided by customer) between B1-B2 with B2-
B3 open (wiring removed).
⊕1，⊕2 High-Frequency
Harmonic
Suppressing DC
Reactor Connection
Terminal This is normally shorted between
⊕1-⊕2. If harmonic
frequency suppression is needed, connect a DC reactor
between
⊕1-⊕2.
Main Circuit Load
Terminal Connection is normally not needed.
Table 2.1: Main Circuit Terminal Names and their Functions (Continued)
Terminal
Code
Name Function