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Chapter 2: Installation
Servo drive
DOX：(DOX+,DOX-)
X=1,2,3,4,5,6
DO1：(7,6)
DO2：(5,4)
DO3：(3,2)
DO4：(1,26)
DO5：(28,27)
DO6：(46,40)
Notes:
• Please refer to Chapter 3 Wiring�
• Please use relay part number 781-1C-24D or equivalent�
• Please use diode part number AD-ASMD-250 or equivalent�
• The brake signal controls the solenoid, providing power to the brake and enabling the brake�
• Please note that there is no polarity for the coil brake� DC+ and DC- voltage can be
connected to either the blue or brown wires�
Timing diagram of control power and main power:
L1c, L2c
Control power
Control power
RST
Main circuit power
BUS voltage
Servo ready
Position/Speed/Torque
command input
Calculating the brake's rated current (SV2L-204N is used as an example here).
Power consumption of the brake (20°C) = 6.5 W (refer to Appendix A Motor specifications),
so the brake's rated current = (6.5 W)/24V = 0.27 A.
Page 2–18
Ensure the polarity of
diode is correct, or it
will damage the drive
DOX+
DC24V
DOX-
1 sec
5 V
ready
2 sec
Servo on
(DI)
Servo on
(DO)
It is open circuit when the
emergency stop signal is on.
Relay
> 0 ms
800 ms
1 ms (Min. value)+ Delay time of the digital filter (P2.009)
Can be input
SureServo2 User Manual – 1st Edition – 05/20/2021
Motor
Brake 1 (blue)
Brake
For brake
DC24V
Encoder
Brake 2 (brown)