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182582-1CD
182582-1CD
8 System Setup
8.20Encoder Back-up Error Recovery Function
MH900, DX200 Controller
8.20 Encoder Back-up Error Recovery Function
8.20.1 About Encoder Back-up Error Recovery Function
A motor of the robot, the travel axis or the rotation station which is
controlled by the controller is connected with the back-up buttery in order
to keep the position information even though the control power is
disconnected. This buttery consumes buttery power through time, and the
alarm “4312 ENCODER BATTERY ERROR” occurs when the voltage
becomes lower than 2.8V. If the battery is not replaced and keep
consuming more battery power, it will cause the lost of the position
information. In addition, the alarm “4311 ENCODER BACK-UP ERROR”
occurs. Meanwhile, there would be a gap between the manipulator
position and the position of the absolute encoder.
This function allows to recover the absolute data by moving the axis
operation to the home position from the position information where the
axis is lost.
8.20.2 Encoder Back-up Error Recovery Function Operation
1. Press {SELECT}.
– When select the “RESET” in the alarm display, the alarm is reset.
The manipulator can be move by the axis operation key.
2. Adjust the alarm occurring axis to the home position mark of the each
manipulator axis by the axis operation key.
3. Change the security mode to the management mode.
– Refer to section 7.1.1 “Security Mode” on page 7-1 for the operation
of the changing the security mode.
4. Select {ROBOT} in the main menu.
5. Select {HOME POSITIONING}.
– The home positioning display appears. The absolute data of the axis
which is occurring the encoder back-up error appears with the “ ᆁ ”
which indicates the undefined state.
6. Select the control group.
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