LINK Systems System 2500 PLS - Manual (Page 16)

System 2500 Operating & Installation Manual - Revision 07 2-8
necessary for proper actuation of the output at maximum speed and at minimum speed (see
Section 2.5.7 for a description of this procedure). The setpoint value should be left programmed
at the correct setting for minimum speed. The setpoint should then be edited to 'Advanced'
status, by pressing the ADVAN key while the cursor is on the setpoint. The screen will then ask
the operator to confirm that the setpoint is to be advanced. Pressing the YES key at this point
will program that setpoint as advanced and the 'A' label will appear beside the setpoint as an
indicator.
Configuration of the PLS Output Speed Advance is necessary for speed advanced outputs to
function properly (see Section 2.5.7). The System 2500 PLS will calculate a speed advance
constant from data entered for PLS Output Speed Advance in the configuration menu. The speed
advance constant will then be used to adjust the setpoint angle of advanced setpoints as machine
speed changes.
Note that once the data in the configuration menu is programmed, it should not be reprogrammed
if the operator later chooses to advance another setpoint. All future setpoints programmed as
advanced will use the speed advance constant already programmed. For later setpoints
programmed as advanced it will not be necessary to test at maximum speed. For these setpoints
it will only be necessary to enter the angle for proper operation at minimum speed and then edit
the setpoint to advanced.
If a channel is to be programmed with advanced setpoints and the correct setpoints are already
known, the setpoints can be directly programmed as advanced (rather than editing them to
advanced status after they have been programmed). To program a setpoint angle to be speed
advanced, the steps of section 2.4.1.1 must be followed to program the channel, except that the
ADVAN key must be pressed after the angle is keyed in and before the ENTER key is pressed.
Only one setpoint pair can be programmed on an output channel using Speed Advance.
2.4.1.6 Incrementing Setpoints
Individual on or off setpoints can be fine tuned by using the Increment mode. To use this mode
the keyswitch must be in the INC position. When in the increment mode, the System 2500 does
not generate an E-Stop. Since no E-Stop is generated, this mode allows adjustment of a setpoint
while the machine is running. To adjust a setpoint the operator must first select the channel and
then move the cursor to the on or off setpoint to be adjusted. When the desired setpoint is
blinking, the operator must press the up or down arrow keys to increase or decrease the setpoint
value, respectively. In many cases, the arrow key will have to be pressed more than once to
change the setpoint by one degree (the setpoint changes by only a fraction of a degree each time
the key is pressed).
2.4.2 VIEW STATUS