Yaskawa MP2200 Machine Controller - Manual (Page 500)

10 Troubleshooting
10.1.2 Motion Error Details and Corrections
10-14
( 5 ) Positive and Negative Overtravel (IL††04 Bit 1 and Bit 2)
For a vertical axis, the following should be set at the SERVOPACK to avoid dropping and vibration
at the overtravel limit.
ΠAn emergency deceleration stop
ΠZero clamp status after the deceleration stop
A.d02
Excessive Position Error Alarm for
Speed Limit at Servo ON
The speed limit in parameter Pn529 is applied if the Servo goes ON and the
position error pulse count was excessive. Reference pulses were input in
that condition and the value set in parameter Pn520 was exceeded without
clearing the speed limit.
A.F10 Broken Phase in Power Line One phase of the three-phase main power supply is not connected.
CPF00 Digital Operator
Communications Error Communications could not be established between the JUSP-OP05A
Digital Operator and SERVOPACK due to a CPU Error or other problem.
CPF01
A. − − No error display Indicates normal operating status.
Table 10.2 Analog Servo Alarm List (B) (cont’d)
Code Alarm Name Alarm Content
Detection Timing
• Overtravel is continuously monitored by the position management section during execution of a motion command.
• Overtravel is detected when the overtravel signal in the direction of movement turns OFF.
Processing when Alarm Occurs
• The SERVOPACK performs stop processing.
The stop method and processing after stopping depends on the SERVOPACK parameter settings.
• The Command Error Occurrence in the Servo Module Command Status (IW††09 bit 3) will turn ON.
• MP2200/MP2300 Processing
The command is canceled and the axis decelerates to a stop. Follow-up processing (each scan the current position of the
machine is adjusted to the reference position) is executed.
Error and Cause
• A move command was executed that exceeded the travel limit of the machine as follows:
A user program command exceeded the travel limit.
The software limit was exceeded in manual operation.
• Overtravel signal malfunction.
Correction
• Check the overtravel signal.
• Check the program or manual operation.
• After clearing the motion command code and resetting the alarm, use a return operation to eliminate the overtravel status.
(Commands in the overtravel direction will be disabled and an alarm will occur again if one is attempted.)
IMPORTANT