FEC DSP1500 (SAN3) - Manual (Page 28)

enFORCE SAN Unit Operation Manual
PAGE 6 - 28
Chapter 6: System Operation
♦ Load Rise Detection (Method 2 – Type 2)
This Load Control press method allows judgment of a distance (DS) at a given load
[18: Detection Start Load] and press rate [33: Load Rate Change].
Type 2 Control is active if [22: Target Distance] is set to 0.
Upon start of cycle, the press will operate until it achieves [13: Target Load]. During
the press cycle, as soon as [18: Detection Start Load] is achieved, a rate calculation
will begin based upon the load seen at a distance of .1mm before the [18: Detection
Start Load] distance and will continue to be calculated every .1mm until [33: Load
Rate Change] is exceeded. During the press cycle, checks are performed
for ”Interference Check” / “Part Check”, Load and Distance. If any of these values are
compromised, the press will stop and return as programmed.
Final Judgment is based
on the distance where the rate exceeds [33: Load Rate Change] after [18: Detection
Start Load] has been achieved
.
(See corresponding sections for Interference Check and Part Check explanations.)
ƒ [33: Load Rate Change] is a “control” function and is not used for judgment.
ƒ Timing Signal Output function cannot be used in conjunction with this method.
ƒ If “Interference Check” or “Part Check” are not used, set [15: Interference Check
Load / Part Check Load High] and [17: Part Check Load Low] to [10: CAL
Load] and [23: Interference Check Distance / Part Check Distance] to a
minimum of [21: Distance High Limit].
ƒ Review Speed Section explanations and cautions when setting [15: Interference
Check Load / Part Check Load High], [14: Press Speed Start Load], [24: Press
Speed Start Distance] and [20: Approach Distance].
Load
Distance
Max Load Limit is set to
1.1 x [10] Calibration Load
[11] Load Low Limit
[13] Target Load
[15] Part Check Load High
(Interference Check Load)
[17] Part Check Load Low
[20]
Distance
Low Limit
[21]
Final
Distance Limit
[23]
Part Check Distance
(Interference Check Distance)
Part Check - High
(Interference Zone)
Final Judgment Zone
(DS)
Judgment
Distance
[18] Detection Start Load
[12] Load High Limit
[18] Detection Start Load
( DS) - .1mm ( DS) + .1mm
(DS)
[33] Load Rate Change
[24]
Distance
High Limit
Part Check - Low