YASKAWA SGM series, Safety Precautions

• Before starting operation with a machine connected, change the settings of the 

switches and parameters to match the machine.

• Do not radically change the settings of the parameters.

• Install limit switches or stoppers at the ends of the moving parts of the 

machine to prevent unexpected accidents.

• For trial operation, securely mount the Servomotor and disconnect it from the 

machine.

• Forcing the motor to stop for overtravel is disabled when the Jog (Fn002), Ori-

gin Search (Fn003), or Easy FFT (Fn206) utility function is executed. Take 

necessary precautions.

• When an alarm occurs, the motor will coast to a stop or stop with the dynamic 

brake according to a setting in the SERVOPACK. The coasting distance will 

change with the moment of inertia of the load. Check the coasting distance 

during trial operation and implement suitable safety measures on the machine.

• Do not enter the machine’s range of motion during operation.

• Do not touch the moving parts of the Servomotor or machine during operation.

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Operation Precautions

WARNING

Unexpected machine operation, failure, or personal injury may occur if opera-

tion is started before appropriate settings are made.

There is a risk of unstable operation, machine damage, or injury.

There is a risk of machine damage or injury.

There is a risk of injury.

There is a risk of machine damage or injury.

There is a risk of injury.

There is a risk of injury.

CAUTION

• Do not use the holding brake built into a Servomotor to stop the Servomotor. 

The holding brake is designed to hold the motor shaft. It is not designed as a 

stopping device to ensure machine safety. Provide an appropriate stopping 

device on the machine to ensure safety.

There is a risk of brake failure due to wear, damage to the machine, or injury.

• Before you operate a Servomotor, supply power to the holding brake to release 

the holding brake. Refer to the timing charts in your Servomotor manual for 

details.

• During trial operation, confirm that the holding brake works correctly.

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