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Operation Manual
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3.8: Test Presses Running in a Continuous Mode
Because the Safetimeter sends a release command to the Auto-Hand each time the P/V transducer crosses the
Control Start Point (CSP), a special method must be used to test a press running in a continuous mode. Typically, this
test is performed on the press’s Emergency Stop (E-STOP) button or a presence sensor.
1. Position the P/V transducer as described in Section 3.1: Placement of Position/Velocity (P/V) Transducer.
2. Set the CSP to initiate a stop at the 90-degree crankshaft position.
3. Ready Auto-Hand to press the E-STOP button or interrupt the presence sensor with Auto-Flag.
4. Make the following Safetimeter switch settings:
Display
(as
desired)
Timing Direction
TIME DOWN
Revolution
PART REV
5. Press the Safetimeter power switch OFF.
6. Start the press in continuous mode.
7. Observe that the press is up to speed.
8. When the ram is on the up stroke, press the power switch ON. When the ram goes through the top of the stroke
and crosses the 90-degree point, Auto-Hand will release and press the E-STOP button or interrupt the presence
sensing field with Auto-Flag.
9. After the press stops, verify that the ram has not gone through the bottom of the stroke or that the dies have
engaged. If either of these conditions have occurred, the reading is inaccurate. Increase the CSP setting slightly
and test until neither of these conditions occur.
NOTE: In some cases, stopping a continuous run press requires more than one stroke of the ram. The standard
Semelex II Safetimeter is incapable of testing such an occurrence. To perform this type of test, the optional Remote
Tachometer is needed. Contact the factory for details.
