LINK Systems Omni II Automatic Setups Module - Manual (Page 49)

October 16, 2008 Manual Version 1.1
5-5
Section 5.1.2 Automatic Slide Movement
Automatic movement of the slide can be initiated by either pressing the AUTO ADJUST”
softkey in the slide adjust screen or when a stored job is recalled and the system is ON. Note
that the AUTO ADJUST key will only appear when the slide adjust switch is ON. An auto
adjust sequence always approaches the slide setpoint from above. For instance, if the current
position is 10.000 and the slide setpoint is 12.000, the auto adjust sequence might take the slide
first to 12.015, then back to 12.004, and then “pulse” the slide the last four thousandths into
position. This is to ensure consistent setups by taking up gear lash from the same direction every
time. Note that a slide setpoint of 00.000 (used to store a job that will not overwrite the
previous slide setpoint on recall), will prohibit automatic adjustment. Automatic movement
is subject to the following conditions:
a) The slide adjust switch must be on.
b) The press must be stopped.
c) The press must be at the top of the stroke.
d) When used with the OmniLink 5000 Press Control only, the Link Master Control (LMC)
relay must be engaged.
e) There must be no faults in the slide system and the counterbalance system, if present.
f) The auto adjust sequence for the slide will not start until the counterbalance system, if
present, is at least up to its pressure setpoint. If the correct pressure setpoint for the
counterbalance has been entered, this will ensure that the counterbalance has taken up
any clearances in the slide connection system to increase accuracy of shut height
adjustment. When the slide adjust system waits for the counterbalance system to finish
adjusting to its pressure setpoint, the status message of the slide adjust system will be
“Waiting for Cntr-Bal”.
NOTE: A counterbalance pressure that is far too low or far too high during any shut
height adjustment may place excessive load on the shut height adjust motor
and may even stall the motor. This condition can also occur with non-
automatic motorized slide adjust systems. If the automatic slide adjust
doesn’t see slide movement within two seconds of a command to move, it
will stop its command to move and generate to the Fault message “Slide Did
Not Move”.