Estun ETS-101010APC-CAN - Chapter 6 MODBUS Communication; 6.1 RS-485 Communication Wiring

ETS Series AC Servo User's Manual
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4.3.4 Setting for Holding Brakes
The holding brake is used when the servo drive controls a vertical axis.
A servomotor with the brake option helps prevent movable parts from shifting due to gravity when power is removed from
the servo drive.(Refer to 4.1.4 Trial Operation for Servomotor with Brakes.)
Vertical axis
Servomotor
Holding brake
Prevents the servomotor
from shifting due to
gravity when the power is
OFF.
External force
Servomotor
Prevents the servomotor from
shifting due to external force.
Shaft with external force applied
1. The servomotor with the built in brake, is a de-energization brake. It is used to hold the servomotor and cannot be used
as a braking purposes. Use the holding brake only to hold a stopped servomotor.
2. When operating using only a speed loop, turn OFF the servo and set the input reference to 0V when the brake is
applied.
3. When forming a position loop, do not use a mechanical brake while the servomotor is stopped because the servomotor
enters servolock status.
（1）Wiring Example
Use the servo drive sequence output signal /BK and the brake power supply to form a brake ON/OFF circuit.
The following diagram shows a standard wiring example.
M
PG
BK
U
V
W
L1
L2
L3
L1C
L2C
*1
*2
CN1_A/B/C
R
S
T
BK-RY
(/BK+)
(/BK-)
+24V
BK-RY
Brake power supply
AC
DC
CN2_A/B/C
BK-RY：Brake control relay
Servodrive
Power supply
Servomotor with brake
Yellow or blue
White
Red
Black
1*、2*：The output terminals allocated with Pn511.