YASKAWA MP2000 Series User Manual page 349

( 7 ) Bit 9: Excessive Deviation
Detection Timing
• Always, except during speed control and torque control
Processing when
• The move command is not executed.
Alarm Occurs
• The Command Error Completed Status in the Motion Command Status (IW09, bit 3) will turn ON.
One of the following is possible.
Error and Cause
Check the following and correct the problem. If the problem persists, contact the maintenance department.
Correction
 The above check is not performed if the Error Count Alarm Detection (OL22) is set to 0.
( 8 ) Bit D: Zero Point Unsetting
• Enabled only when an absolute encoder is used for an infinite length axis and detected when the next com-
Detection Timing
Processing when
• The set command will not be executed.
Alarm Occurs
• The Command Error Completed Status in the Motion Command Status (IW09, bit 3) will turn ON.
Error and Cause
• A move command was set without executing the ZSET command (IW0C, bit 5 is OFF).
Correction
• After clearing the motion command and resetting the alarm, execute a Zero Point Setting operation.
( 9 ) Bit 13: Excessive ABS (Absolute) Encoder Rotations
• Enabled only when an absolute encoder is used for a finite length axis, and the electronic gear is used.
Detection Timing
Processing when
• The absolute position information read from the absolute encoder when the SEN signal turned ON is
Alarm Occurs
• An operation error occurred when the absolute position information read from the absolute encoder is con-
Error and Cause
Correction
• Check the gear ratio, number of encoder pulses for other motion fixed parameters.
( 10 ) Bit 14: PG Disconnection Error
Detection Timing
• Any time
Processing when • The command in execution is forcibly terminated.
Alarm Occurs
• The Command Error Completed Status in the Motion Command Status (IW09, bit 3) will turn ON.
One of the following is possible.
Error and Cause
• Check the pulse input signal connections to see if they are correctly connected.
Correction
• Check the SERVOPACK control power supply.
• The position loop gain and speed loop gain are not set correctly, creating poor response.
• The Error Count Alarm Detection (OL22) is too small.
• The capacity of the motor is insufficient for the machine load.
• SERVOPACK failure
• Check the position loop gain and speed loop gain.
• Check the Error Count Alarm Detection (OL22).
• Check the motor capacity.
mand is set in the Motion Command (OW08).
Commands: Positioning, External Positioning, Interpolation, Interpolation with position detection
function, Phase reference
Detected by the position management section when power is turned ON.
ignored.
verted from pulses to reference units at power ON.
• Any of the following pulse input signals are incorrectly connected or disconnected.
PA (pin No. 3), PAL (pin No. 4), PB (pin No. 23), PBL (pin No. 24)
• The SERVOPACK control power supply is OFF.
12.4 Troubleshooting Motion Errors
12.4.2 Axis Alarm Details and Corrections
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