51
Setting Up Parameters
FeedRate Decel/Accel
The FeedRate Decel/Accel parameter specifies the ramp used when velocity changes due to
a change in the FeedRate Override value. The units of FeedRate Decel/Accel are Seconds/
100% of Feed Rate. Therefore, the user must specify the amount of time (in seconds) to
accelerate or decelerate 100% of FeedRate.
Examples:
FeedRate Override is set to 100% (default). The user wishes to slow down motion to 50% of
programmed velocity. If FeedRate Decel/Accel is set to 1 Sec/100%, when the FeedRate
Override parameter is changed to 50%, it will take 0.5 seconds to decelerate to 50% velocity.
A user wishes to accelerate from 100% programmed velocity to 175% in 0.5 Seconds.
Therefore, the value they need to enter for FeedRate Decel/Accel is calculated as follows:
Online Tab (not shown)
If online, this view will show the limits group and the velocity group.
Velocity Group
Velocity Command
The Velocity Command is the actual command generated by the FM-3 module to the motor
in user units.
Velocity Feedback
This parameter is the actual feedback motor velocity in user units.
Decel/Accel Time
=
FeedRate Decel/Accel * % Change in Feedrate
=
(1 Sec/100%) * (100% - 50%)
=
0.5 Seconds
FeedRate Decel/Accel
=
Decel Time/ % Change in Feedrate
=
(0.5 Sec) / (175% - 100%)
=
0.5 Sec / 75%
=
(0.5 Sec) / (100% * 75%)
=
0.66 Sec / 100%
Summary of Contents for FM-3
Page 2: ......
Page 14: ...xii ...
Page 16: ...2 FM 3 Programming Module Reference Manual Figure 2 FM 3 Programming Module Features ...
Page 128: ...114 FM 3 Programming Module Reference Manual ...
Page 156: ...142 FM 3 Programming Module Reference Manual ...
Page 196: ...182 FM 3 Programming Module Reference Manual ...
Page 238: ...224 FM 3 Programming Module Reference Manual ...
Page 251: ...237 Diagnostics and Troubleshooting Figure 97 Diagnostic Cable DGNE Diagram ...
Page 262: ...248 FM 3 Programming Module Reference Manual ...
Page 264: ...250 FM 3 Programming Module Reference Manual AX4 CEN CDRO ...
Page 265: ...251 Specifications Cable Diagrams ...
Page 266: ...252 FM 3 Programming Module Reference Manual SNCE XXX Cable SNCDD 001 5 Cable ...
Page 267: ...253 Specifications SNCO 003 Cable SNCI 003 Cable ...
Page 268: ...254 FM 3 Programming Module Reference Manual SNCLI 003 Cable ...
Page 272: ...258 FM 3 Programming Module Reference Manual TIA XXX Cable DDS XXX Cable ...
Page 274: ...260 FM 3 Programming Module Reference Manual CMDS XXX Cable CMMS XXX Cable ...
Page 275: ...261 Specifications CFCS XXX Cable ...
Page 276: ...262 FM 3 Programming Module Reference Manual CFCO XXX Cable ...
Page 277: ...263 Specifications CFOS XXX Cable ...
Page 278: ...264 FM 3 Programming Module Reference Manual ...
Page 286: ...272 FM 3 Programming Module Reference Manual ...
Page 290: ...276 FM 3 Programming Module Reference Manual ...
Page 291: ......