Fuji Electric Frenic-Mini - Page 33

2-11
f Braking resistor terminals, P(+) and DB
1) Connect terminals P and DB of a braking resistor to terminals P(+) and DB on the main circuit
terminal block. (For the braking resistor built-in type, refer to the next page.)
2) When using an external braking resistor, arrange the inverter and braking resistor to keep the
wiring length to 5 m or less and twist the two wires or route them together in parallel.
Do not connect a braking resistor to any inverter with a rated capacity of 0.2 kW or below.
(Even if connected, the braking resistor will not work.)
Never insert a braking resistor between terminals P(+) and N(-), P1 and N(-), P(+) and P1, DB
and N(-), or P1 and DB.
Doing so could cause fire.
Figure 2.7 Braking Resistor Con-
nection without DC
Reactor
When a DC reactor is not to be connected together with
the braking resistor
1) Remove the screws from terminals P(+) and P1, togethe
r
with the jumper bar.
2) Connect the wire from terminal P of the braking resistor to
terminal P(+) of the inverter and put the jumper bar back
into place. Then secure the wire and jumper bar with the
screw.
3) Tighten the screw of terminal P1 on the jumper bar.
4) Connect the wire from terminal DB of the braking resisto
r
to the DB of the inverter.
Figure 2.8 Braking Resistor Con-
nection with DC Reacto
r
When connecting a DC reactor together with the braking
resistor
1) Remove the screw from terminal P(+).
2) Overlap the DC reactor wire and braking resistor wire (P)
as shown at left and then secure them to terminal P(+) o
f
the inverter with the screw.
3) Connect the wire from terminal DB of the braking resisto
r
to terminal DB of the inverter.
4) Do not use the jumper bar.