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Operation Manual
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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 flag 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. Toggle the STOP TIME/
SAFETY DISTANCE switch to see the displayed results for STOPPING TIME or SAFETY DISTANCE. Presses using
electronic guards have other mandated control requirements (brake monitors, for example) which should be in place
and operating correctly.
Note: When determining SAFETY DISTANCE for light curtains, the depth penetration factor must be added to
the Safetimeter reading.
3.6: Using Optional Manual Start Switches
The Safetimeter can be used in a manual mode with one of two optional Manual
Start Switches. These switches are plugged into the MANUAL START jack on
the Safetimeter panel. No wiring to the press control is required.
1. Normally Open Switch (PSD0110400). Designated with a black plug. Used
over an inch button or two-hand control, this switch starts the Safetimeter
timing when released.
