MH860 series hydraulic servo drive
Accessories
117
MH860
PB
E
x
te
rn
a
l b
ra
k
in
g
re
s
is
to
r
(+)
Braking unit installation
The 110kW and higher models need to be configured with external braking
units.
(+) and (-)are the terminals for connecting braking units.
The connection cable length between the (+) and (-) terminals of the VFD and
those of a braking unit must be shorter than 5m, and the connection cable
length between the BR1 and BR2 terminals of a braking unit and the
terminals of a braking resistor must be shorter than 10m.
Single connection:
+ +
+ +
+
+
+
External braking resistor
(+)
DC+
(-)
DC-
BR1 BR2
PE
(-)
(+)
+
+ + + + +
+
MH860
DBU braking
unit
