To Next Page

To Previous Page

1. Safety

28 RC180 Safety and Installation Rev.18

Low Power Mode

The motor power is reduced in this mode.

Executing a power status change instruction will change to the restricted (low

power) status regardless of conditions of the safety door or operation mode. The

restricted (low power)

status ensures the safety of the operator and reduces the

possibility of peripheral equipment destruction or damage caused by careless

operation.

Dynamic Brake

The dynamic brake circuit includes relays that short the motor armatures. The

dynamic brake circuit is activated when there is an Emergency Stop input or when

any of the following errors is detected: encoder cable disconnection, motor

overload, irregular motor torque, motor speed error, servo error (positioning or

speed overflow), irregular CPU, memory check-sum error and overheat condition

inside the Motor Driver Module.

Encoder Cable Disconnection Error Detection

The dynamic brake circuit is activated when the Motor Encoder Signal cable is

disconnected.

Motor Overload Detection

The dynamic brake circuit is activated when the system detects that the load on the

motor has exceeded its capacity.

Irregular Motor Torque (out-of-control manipulator) Detection

The dynamic brake circuit is activated when irregularity with motor torque (motor

output) is detected (in which case the Manipulator is out of control).

Motor Speed Error Detection

The dynamic brake circuit is activated when the system detects that the motor is

running at incorrect speed.

Positioning Overflow -Servo Error- Detection

The dynamic brake circuit is activated when the system detects that the difference

between the Manipulator’s actual position and commanded position exceeds the

margin of error allowed.

Epson RC180 Safety And Installation

Other manuals for Epson RC180