February 2007 /// Created by: FA-EBG Marketing Communications Dept
Servo /// Motion /// Servo /// Motion /// Servo /// Motion /// Servo /// Motion /// Servo
4.5 Resetting an Error
When an error occurs on the X- or Y- axis, the ‘X-ERROR’ or ‘Y-ERROR’ light on the
FX3U-20SSC-H begins blinking and positioning operations are halted until the error-reset
bit in the operation data is set via GX (IEC) Developer or FX Configurator-FP.
-- NOTE --
If the FX3U-20SSC-H error LEDs are continually blinking and the servos read ‘E6,’ even
after recycling the power, refer to Section 5 Clearing Servo Warning ‘E6’ to reset the
error.
When an error occurs, the icon in FX Configurator-FP turns on if you’re in TEST
MODE, or while you’re using the Table monitor, or during the ‘Operation monitor’
Monitor Start mode. The Error code is listed in the X-axis Operation or Y-axis Operation
test window as shown below and may be seen in the Operation monitor as well.
To remove the error, click on the button or select [Online → Test → Error reset →
Error reset X-axis] and press ‘Yes’ and ‘OK.’
4.6 Absolute Position Detection System
The absolute position detection system is a feature available from the MR-J3-B servo
amplifiers to remember the current position of the work piece at all times. According to
Chapter 7.6.4 in the FX3U-20SSC-H User’s Manual (JY997D21301A), the current
position is stored in the servo amplifiers’ battery backed memory, and even if the work
piece moves at power failure, the moving distance is added to the current position with
the absolute encoder and servo amplifier absolute position system.
To set the absolute position detection system, it is necessary to write information to the
servo parameters and then perform a mechanical zero return operation once to define
the coordinate system. After the coordinate system is defined, the zero return operation
does not need to be executed again, even when the power is turned on. If the absolute
position detection system is disabled and then enabled again, however, the mechanical
zero return operation will be needed again.
The Error code
number allows
you to diagnose
the cause of the