Yamaha SRCX Instruction Manual download pdf (Page 25)

CHAPTER2 Configuration and Connection

2-2-4 Protective bonding

The robot controller is built in to the equipment, so it has a protective structure of Class

I against electrical shock. To prevent electrical shock, be sure to ground the protective

conductor terminal of the robot controller by connecting it to the protective conductor of

the entire system. The protective conductor terminal of the robot controller is marked

with the symbol shown below.

Protective conductor terminal symbol : 417-IEC-5019

2-2-5 Insulation co-ordination

Insulation co-ordination was designed to meet the following conditions. (Refer to the

description of IEC60664-1 standards.)

■ Overvoltage category II

■ Pollution degree II

If the robot or controller is used in environments worse than these levels, take proper

countermeasures as needed.

2-2-6 Isolation Resistance and Voltage BreakdownTests

Never attempt isolation resistance tests or voltage breakdown tests on the controller.

Since capacitive grounding is provided between the controller body and 0V, these tests

may result in detecting excessive leakage current or damage to internal circuitry. If these

tests are required, please consult your YAMAHA sales office or representative.

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Yamaha SRCX Instruction Manual Page 25