FEC DSP1500 (SAN3) - Manual (Page 95)

PAGE ６－33
enFORCE Operation Manual
♦ Load Drop Detection – Point Stop (Method 6)
This Load Control press method is similar to Method 3 (Load Drop Detection) except,
once [63: Δ f] has been detected, the press will stop. The press will attempt to detect
this value until it reaches [13: Standard Load]. During the press cycle, checks are
performed for “1
ST Judgment Zone”, 1 ST Rate, Load, Distance, 1 ST Time and 2 ND Time.
If any of these values are compromised, the press will stop and return as programmed.
Final Judgment is based on the distance where the decreasing change in press force
equals or exceeds [63: Δ f].
(See corresponding sections for Time, Rate, 1
ST Zone and Speed explanations.)
ƒ [63: Δ f] is a “control” function and is not used for judgment.
ƒ 2 ND Rate will only be judged if press continues to [13: Standard Load].
ƒ If “1 ST Judgment Zone” is not used, set [15: 1 ST Load] to [10: CAL Load] and
[23: 1 ST Distance] to a minimum of [21: High Distance].
ƒ Review Speed Section explanations and cautions when setting [15: 1 ST Load],
[14: Speed Change Load], [24: Crossover Distance] and [20: Freerun
Distance].
ƒ If 1 ST Rate or 2 ND Rate are not used, set judgment windows wide open; low value
of 0 and maximum high value. Also, if 1 ST H/L Check is not being used, set
[17: Threshold Load] to [10: CAL Load].
Load
Distance
High Load Limit is set to
1.1 x [10] Calibration Load
[11] Low Load Limit
[13] Standard Load
[15] 1 ST Load
[14] Speed Change Load
[17] Threshold Load
[20]
Low
Distance
[21]
High
Distance
[41]
1 ST Time
[42]
2 ND Time
1 ST Rate
[23]
1 ST Distance
1ST Judgment Zone
Final Judgment Zone
[24]
Crossover
Distance
Judgment Load (PS)
[12] High Load Limit
(DS)
[63] Δ f
[18] Crossover Load
Detection
Range
2 ND Rate
Chapter 6: System Operation