Logika Technologies
HMD-FOC Operation Manual Rev 1.02
July 2016
Web: www.logikatech.com Phone: 905-597-7272 Fax: 905-597-7278 Email: [email protected]
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NC (Normally Closed) pin (Pink) – Common (White) connected
Connect Self test Pin (Purple) to 0VDC Pin (Yellow), Red LED will be ON. Use multi-meter
to measure the voltages on PNP output Pin (Blue) and NPN output pin (Black), referring to
0VDC pin (Yellow):
1.
For PNP output: 24VDC
2.
For NPN output: 0VDC
Measure the connection of Relay:
NO (Normally Open) pin (Gray) – (White) connected
NC (Normally Closed) pin (Pink) – Common (White) disconnected
5.4 Troubleshooting
Missed Target-
If the LED does not turn red when hot metal is in its detection field:
1. The threshold potentiometer is set too low. Go to Threshold Sensitivity Adjustment,
Section 5.2, and recalibrate the sensitivity adjustment.
2. Check HMD’s location and make sure the detection field covers hot metal.
Detector sends false target detect output
1. The sensitivity is set too high. Refer to Section 5.2, adjust sensitivity.
2. If step 1 does not correct detector sending false output, check for background sources of
radiation such as reflected sunlight or hot objects close to the detector. Adjust the
Lens direction to make sure the disturbance as little as possible, or blocking the
interfering radiation source.
Additional notes
1.
No Power- Check that the wiring connections are correct, that the connections are
secure and tight and that the power supply is proper and normal.
6. Maintenance
6.1 Regular Maintenance
Diagnostics-
the HMD-ST-FOC does not require maintenance at a fixed period other than
periodic attention to the following to ensure consistent operation:
Lens Cleaning-
Routinely check the lens glass for dust or oil residue. Clean as required
with soft lint free cloth and lens cleaner.
Adjustments-
The level of sensitivity (see Section 5.2)
