Dukane 403570-01 user manual 22Hold Setup Screen for Distance Mode

Section 5 - Touch Screen Menus

changes the display to the screen shown in Figure 5-

22.The MODE switch specifies if the Hold phase will be controlled by traveling a specified Distance or for a specified amount of Time.

With Distance MODE selected as shown in Figure 5- 22, the parameters for Hold motion are specified in the fields on the right and are divided into two sections: DYNAMIC and STATIC. During the Hold, the press will first complete the DYNAMIC phase, then the STATIC phase. In the DYNAMIC phase, the press moves vertically at the speed specified in Speed (mm/s) to a distance specified in Collapse (mm). In the STATIC phase, the press will maintain its position for the time specified in Dwell Time(s). It is possible to bypass either the DYNAMIC or STATIC phases by programming a 0 collapse distance or a 0 dwell time, respectively.

With Time MODE selected as shown in Figure 5-23, the parameters for specifying the hold time are vertical speed in Speed (mm/s), the motion duration in Move Time (s), and time for maintaining the final position in Dwell Time (s). In addition, the Constant Thrust option is available in the Time MODE, in which the press travels down until reaching a specified vertical thrust (i.e. compression force). To enable this option, press the Constant Thrust button. The relationship between the vertical torque and vertical speed is illustrated in Figure 5-24. The press will adjust vertical speed as a response to the measured vertical thrust along the lines on the graph. The Thrust Target is the desired vertical thrust, which is entered into the Thrust (%) field on the screen. The Max.. Speed is the maximum allowable vertical speed, which will occur if the measured thrust is 0. This value is entered in the Speed (mm/s) field in the DYNAMIC section.

Figure 5–22Hold Setup Screen for Distance MODE

Figure 5–23Hold Setup Screen for Time MODE

Figure 5–24Graph of Vertical Speed vs.. Vertical Torque for Constant Thrust Option

Dukane Manual Part No. 403-570-01 Page  39