LINK Systems OmniLink 5000 - Manual (Page 58)

5.11
provided as an energy conservation feature. After this time has elapsed, the press control will turn its LMC
relay off until the main motor turns off. This value is limited to between 0 and 250 minutes, and an entry
beyond the limit is rejected. An entry of 0 disables this feature.
Section 5.2.10 Maximum # Engagements per Minute
This parameter sets the maximum number of times that the clutch/brake valve can be energized and de-
energized in any 1 minute interval. This option is typically used to prevent excessive heating of the clutch.
A 1 minute timer is started upon the first activation of the clutch valve and the number of re-activations is
monitored. If the operator attempts to dis-engage and then re-engage the valve more than this programmed
number of settings within the time interval, the press control will automatically inhibit further stroking for
the remainder of the 1 minute, and the present running status will display “Max. # Engage Delay”. This
monitor also applies to Timed Inch mode in which case the number of automatic pulses at the bottom of the
stroke can not exceed this programmed limit. This option is turned Off by setting the parameter to 000.
Section 5.2.11 Top Stroke Stop Time
This parameter sets the maximum time allowed for the press to come to rest when automatically stopped at
the top of the stroke. If the measured stop time exceeds this limit the operator must acknowledge the fault
by pressing the RESET ERROR softkey before any further strokes can be initiated (see Section 4.2.1 and
Section 4.2.10). Since this limit applies only when the press is being automatically stopped at the top of the
stroke, it can be set close to the actual time required and can be used to detect early wear in the brake. This
limit can be set from 20 milliseconds to 998 milliseconds.
Section 5.2.12 Mid Stroke Stop Time
This parameter sets the maximum time allowed for the press to come to rest when stopped during the stroke.
If the measured stop time exceeds this limit the operator must acknowledge the fault by pressing the RESET
ERROR softkey before any further strokes can be initiated (see Section 4.2.1 and Section 4.2.10). Since this
limit applies when the press is stopped in the downstroke it establishes the maximum allowable stopping time
of the press and can be used to determine the minimum safety distance for two hand control and light curtain
safety devices. The Setup/Stop Time Test stroking mode can be used to determine the maximum stopping
time of the press (see Section 4.3.1). This limit can be set from 20 milliseconds to 998 milliseconds.
.
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 5.2.13 Machine Speeds
The Configure Speed screen is accessed by pressing the SPEED CONFIG softkey in the Machine Parameters
configuration screen. The Configure Speed screen is shown in Figure 5.6. The speeds associated with
particular stroking modes shown in this screen are speed “limits” for the maximum number of strokes/min