User`s manual

A-12 Motion Mate™ DSM314 for Series 90™-30 PLCs User's Manual

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January 2001 GFK-1742A

Status Only Follower makeup time is not long enough Axis The configured Ramp Makeup Time is too small so that actual

makeup time is longer. The makeup time of follower ramp

acceleration should be increased.

Status Only Velocity limit violation during follower ramp Axis Follower ramp makeup requires a velocity greater than 0.8 *

the configured axis velocity limit, so that actual makeup time

is longer than the configured value. Increase the velocity limit,

makeup time or ramp acceleration.

Status Only Time limit violation during acceleration sector of

the follower distance correction

Axis Ramp makeup required an acceleration time > 64000 position

loop sample times. The follower ramp acceleration must be

increased.

Position Loop Errors

Status Only Follower Position Error Limit Encountered Axis The position error has reached the position error limit and the

follower loop is no longer position-locked to the master axis.

The position error limit must be increased or velocity

feedforward must be used.

Status Only Velocity Limit Condition Encountered Axis The sum of all command inputs (internal cmds + follower

master + local logic) to the position loop has exceeded the

configured velocity limit. The axis is no longer position-

locked to the commands. The command velocities must be

decreased or the velocity limit must be increased.

Status Only Follower Ratio B value = 0 Axis Follower Ratio B values < 0 are not allowed.

Status Only Follower Ratio B value < 0 Axis A Follower Ratio B value of 0 is not allowed.

Status Only Follower ratio A:B > 32:1 or < 1:10000 Axis The Follower Ratio A / Ratio B values must represent an A/B

ratio in the range 32:1 to 1:10000.

Internal Errors

Status Only Control Loop execution time > 500 microseconds Axis Contact GE Fanuc Automation

Status Only Control Loop execution > 400 microseconds, more

than 5 times in a row

Axis Contact GE Fanuc Automation

Stop Fast System software error Axis Contact GE Fanuc Automation

Stop Fast Unrecognized encoder, not supported Axis Error can indicate defective encoder cable – check cable. If

cable checks out correctly, contact GE Fanuc Automation