LINK Systems OmniLink 5000 - Manual (Page 21)

4.3
7. Continuous on Demand Time
8. Messages from auxiliary equipment.
9. The event that caused the press to stop.
10. The event that is keeping the press from running, if any exists.
If configured, the Motor Speed Adjust screen can be accessed from this screen in order to change the
stroking speed of the press (see Section 4.7). In addition the Tonnage Monitor, Auto Setups, and the Die
Protection can be accessed from this screen if so configured.
Section 4.2.1 Brake Monitor
Each time the press stops a time based brake monitor (2mS resolution) measures the time from deactivation
of the clutch/brake valve until crankshaft rotation is less than 1.8 rpm. An additional 8 mSec is added to this
measured value to compensate for the reaction time of the control. If the actual time exceeds an allowable
brake monitor limit, the present running status will display “Stop Took Too Long” and the operator is
required to press a RESET ERROR softkey before any further strokes can be initiated. The last measured
stopping time is displayed beside the limit that applied. Separate limits are provided for monitoring the
stopping time at the top of the stroke (Top Stroke Stop) or at any position other than top (Mid Stroke Stop).
These limits can only be changed in the Machine Parameters configuration screen (See Section 5.2.11 and
Section 5.2.12).
WARNING! When your press is equipped with two-hand control devices and/or presence sensing
devices for point of operation protection, only qualified personnel with a knowledge of ANSI (B11.1),
OSHA (CFR 1910.217), or other regulations that govern the relationship between stopping time and
the distance at which two-hand control and/or presence sensing devices are to be located should set
or reset stop limits for the brake monitor. These limits must never be set for longer times than the
time the safety distance is based on.
Section 4.2.2 Clutch Time
The clutch engagement time is measured (4mS resolution) each time the clutch/brake valve is engaged and
is the time from valve activation until crankshaft rotation exceeds the "minimum strokes/min" threshold. If
the actual time exceeds a maximum limit, the stroke is aborted and the reason for the last stop will display
“Motion Did Not Start”. Both the minimum speed threshold and the maximum engagement time can be set
only in the configuration menu (See Section 5.2.4 and Section 5.2.7).
Section 4.2.3 Automatic Single Stroke Time
This parameter is the length of time that the press control will wait for the feed to initiate a stroke, after the
automatic single stroke mode has been selected and the first stroke manually activated. The press control
begins timing at the bottom of the stroke, and requires that the Feed Complete input #42 go Low (0 volt)
and back High (24 volt) during the upstroke or while the press control pauses at the top. The next stroke
is automatically initiated if the signal from the feed occurs before the time limit is reached. If equipped with