AMETEK 1025 Foot & Palm Switches - Manual (Page 13)

9 Operating Manual
Chapter 3: Operating Instructions
3. Position the Auto-Hand over the E-STOP button. The plunger extension should
not touch the E-STOP button.
4. Cycle the press while holding Auto-Hand over the button. Auto-Hand will
operate when the desired CSP is reached and push the E-STOP button, stopping
the press.
3.5: Using Auto-Flag with Auto-Hand
Auto-Flag is used in conjunction with Auto-Hand to test the entire press control loop
which includes electronic guards, i.e. photoelectric barrier guards (light curtains) or
capacitance type guards (conduit rail sensor).
This test initiates a press stop by obstructing the sensing area with Auto-Flag,
causing the guard to activate a stop signal in the press.
Attaching Auto-Flag to Auto-Hand
1. Screw the Auto-Flag into the retracted end of the plunger when the Auto-Hand
plunger is depressed. Adjust the Auto-Flag so that it is just outside of the
light curtain.
2. Rest the Auto-Hand with Auto-Flag against the light curtain enclosure just
outside the sensing area.
3. Now, set up the Safetimeter and the P/V Transducer as described earlier to
run a test.
4. Cycle the press. When the ram crosses the 90 degree point (position in the
stroke desired to initiate a press stop), the Auto-Hand will release the fl ag into
the sensing area initiating a press stop.
NOTE: During this test, verify that when the press stops, the dies have not fully
engaged and the press has not gone through the bottom of its
stroke. If either situation occurs, increase the CSP setting slightly
and repeat the test. The displayed stop time is the total of the
electronic guard delay plus press control and braking effectiveness.
If desired, the OSHA formula for safety distance can be read directly from
the Safetimeter display. Set the STOP TIME/SAFETY DISTANCE switch
to SAFETY DISTANCE prior to the test. Presses using electronic
guards have other mandated control requirements (brake monitors,
for example) which should be in place and operating correctly.
When determining SAFETY DISTANCE for light curtains, the depth
penetration factor must be added to the Safetimeter reading.