S1 series standard inverter
-226-
PB
E
x
te
rn
a
l b
ra
k
e
r
e
s
is
to
r
+
Installation of brake units
(+) and (-) are the terminals for connecting brake units.
The connection cables between the (+) and (-) terminals of an inverter and
those of a brake unit must be shorter than 5 m, and the connection cables
between the BR1 and BR2 terminals of a brake unit and the terminals of a
brake resistor must be shorter than 10 m.
The following figure shows the connection of one inverter to a dynamic brake unit.
External brake resistor
DBU
brake
unit
(+)
DC+
(-)
DC-
BR1 BR2 (-)
PE
(-)
+
+ +
+
+
+ +
+ +
+
+
+
+
+
