Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - MECHATROLINK-II Communications Reference - Manual (Page 153)

4 Operation
4.9.6 Precautions for Safety Functions
4-68
3. Connect the safety function device to the safety connector (CN8).
Note: If you do not connect a safety function device, leave the safety function’s jumper connector connected to the safety
connector (CN8). If the SERVOPACK is used without the safety function’s jumper connector connected to CN8, no
current will be supplied to the servomotor and no motor torque will be output. In this case, the SERVOPACK will
enter a hard wire base block state.
(2) Connector Type B
1. Remove the safety function’s jumper connector from the safety connector (CN8).
2. Connect the safety function device to the safety connector (CN8).
Note: If you do not connect a safety function device, leave the safety function’s jumper connector connected to the safety
connector (CN8). If the SERVOPACK is used without the safety function’s jumper connector connected to CN8, no
current will be supplied to the servomotor and no motor torque will be output. In this case, the SERVOPACK will
enter a hard wire base block state.
4.9.6 Precautions for Safety Functions
C
N
1
C
N
8
C
N
2
C
N
8
C
N
2
Hold the jumper connector with
two fingers and pull it out.
Enlarged
View
Safety function’s
jumper connector
WARNING
• To check that the HWBB function satisfies the safety requirements of the system, be sure to conduct a risk
assessment of the system.
Incorrect use of the machine may cause injury.
• The servomotor rotates if there is external force (e.g., gravity in a vertical axis) when the HWBB function is
operating. Therefore, use an appropriate device independently, such as a mechanical brake, that satisfies
safety requirements.
Incorrect use of the machine may cause injury.
• While the HWBB function is operating, the motor may rotate within an electric angle of 180 ° or less as a
result of a SERVOPACK failure. Use the HWBB function for applications only after checking that the rota-
tion of the motor will not result in a dangerous condition.
Incorrect use of the machine may cause injury.
• The dynamic brake and the brake signal are not safety-related parts of a control system. Be sure to design
the system that these failures will not cause a dangerous condition when the HWBB function operates.
Incorrect use of the machine may cause injury.
• Connect devices meeting safety standards for the signals for safety functions.
Incorrect use of the machine may cause injury.
• If the HWBB function is used for an emergency stop, turn OFF the power supply to the servomotor with
independent electric or mechanical parts.
Incorrect use of the machine may cause injury.
• The HWBB function does not shut off the power to the SERVOPACK or electrically isolate it. Take mea-
sures to shut off the power to the SERVOPACK when performing maintenance on it.
Failure to observe this warning may cause an electric shock.