FEC DSP1500 (SAN3) - Manual (Page 107)

enFORCE
DSP1500 SAN Unit Operation Manual
PAGE 6－31 (Rev 4)
Chapter 6: System Operation
♦ Load Drop Detection (Method 6)
This Load Control press method allows judgment of a load “drop off” or yielding point
[19: Load Change].
Upon start of cycle, the press will operate until it achieves [14: Target Load]. During
the press cycle, as soon as [39: Detection Start Distance] is reached, the press will
begin looking for a yield in press force [19: Load Change]. The press will attempt to
detect [19: Load Change] until [14: Target Load] has been reached. 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 of the peak point (DS/PS) prior
to where the decreasing change in press force equals or exceeds [19: Load Change].
(See corresponding sections for Interference Check and Part Check explanations.)
ƒ [19: Load Change] is a “control” function and is not used for judgment.
Load
Distance
[11] Final Load High Limit
[12] Load Low Limit
[14] Target Load
[39]
Detection
Start Distance
[30]
Final Distance
High Limit
Final Judgment Zone
[32]
Distance
High Limit
Judgment Load (PS)
[13] Load High Limit
(DS)
[19] Load Change
Detection
Range