Using The Holding Brake - YASKAWA SGMAH User Manual

Sigma II User's Manual
5.4.4

Using the Holding Brake

The holding brake is used when a servodrive controls a vertical axis. In other words,
a servomotor with brake prevents the movable part from shifting due to the force of
gravity when system power goes OFF.
Note: The brake built into the servomotor SGM H with brakes is a de-energization brake, which is
used only to hold and cannot be used for braking. Use the holding brake only to hold a stopped
motor. Brake torque is at least 120% of the rated motor torque.
Wiring Example
Use the servo amplifier contact output signal /BK and the brake power supply to
form a brake ON/OFF circuit. The following diagram shows a standard wiring
example.
Power supply
+24V
*CN1-1 /BK+ and CN1-2 /BK- are the output terminals allocated at parameter Pn50F.2.
Output /BK
This output signal controls the brake when using a servomotor with a brake and does
Servomotor
Holding brake
Prevents the movable part from
shifting due to gravity when
system power goes OFF.
Servo amplifier
L1
L2
L3
L1C
L2C
BK-RY
CN1-1
/BK+*
CN1-2
/BK-*
Blue or
BK-RY
BK-RY
yellow
Red
AC DC
White
Black
Brake Power Supply
(Provided by Customer)
Brake Interlock Output
5-66
Chapter 5: Parameter Settings and Functions
A (1)
U
B (2)
V
C (3)
W
D (4)
E (5)
F (6)
CN2
Speed/Torque Control,
Position Control
Servomotor
with brake
M
BK
PG