4B Touchswitch 운영 매뉴얼 - 페이지 18

{카테고리_이름} 4B Touchswitch에 대한 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. 4B Touchswitch 20 페이지. Belt misalignment sensor

Periodically test the sensor and the system to ensure both are operating correctly.

The Touchswitch™ has a built in test knob that allows for quick and easy operation verification without

removing the sensor from the mounting hole. The testing procedure is outlined below:

1. Observe that the green output LED on the sensor housing is on and the belt or pulley is not touching

the sensor.

2. Slowly turn the test knob clockwise by hand, until the LED goes out.

3. Check that the alarm and shutdown procedures work as expected.

a. If OK, continue to step 4.

b. If the system does not immediately shutdown as expected or alarm as required, then remove the

machine from service until the problem has been diagnosed and corrected.

4. Turn the test knob back to its original position (about 1/4 turn). Make sure that the knob is loose,

meaning not turned all the way to the left or right.

5. Observe that the LED is now on, indicating the sensor has power and is not in alarm.

As part of your ongoing maintenance program, periodically test the sensor and system, and visually

inspect the contact surface of the sensor and the sealtite, the wires, junction box and conduit.

If the system does not immediately shutdown as expected or alarm as required, then remove the

machine from service until the problem has been diagnosed and corrected.

FAULT

Touchswitch™

Signalling an Alarm

Condition and / or

Green Output LED

is Off

Manufactured by Don Electronics Ltd - United Kingdom, LS19 7LX

TESTING & COMMISSIONING

WARNING

CAUSE

Belt Misaligning

Check Belt Alignment

Touchswitch™

Check Hole Diameter is 57mm and is De-burred

Binding Against

Check Touchswitch™ is Centered in the Hole

Leg Casing

Test Knob

Loosen Knob (Rotate Counterclockwise 1/4 Turn Until

Active

Loose)

Check that the Touchswitch™ has the Correct Voltage

No Power

Supply (between 12 and 24VDC)

Check Orange Wire is Insulated

PAGE 18

REMEDY