Tagged: Control

TWO – WIRE CONTROL

TWO – WIRE CONTROL

 TWO-WIRE CONTROL TWO-WIRE CONTROL Two-wire control provides no-voltage release or low-voltage release . Two-wire control of a starter means that the starter drops out when there is a voltage failure and picks up as...

TROUBLESHOOTING IN CONTROL CIRCUITS 239

TROUBLESHOOTING IN CONTROL CIRCUITS 239

TROUBLESHOOTING IN CONTROL CIRCUITS 239 TROUBLESHOOTING IN CONTROL CIRCUITS 239 contacts, relay/contactor coils, or the associated wires which carry current through the contacts to the coil. One improtant rule to be observed while troubleshooting...

TROUBLESHOOTING IN CONTROL CIRCUITS 241

TROUBLESHOOTING IN CONTROL CIRCUITS 241

TROUBLESHOOTING IN CONTROL CIRCUITS 241 TROUBLESHOOTING IN CONTROL CIRCUITS 241 If during visual inspection, the condition of the relay is found as desired, then proceed to check voltage at various points, starting from the...

TROUBLESHOOTING IN CONTROL CIRCUITS 237

TROUBLESHOOTING IN CONTROL CIRCUITS 237

TROUBLESHOOTING IN CONTROL CIRCUITS 237 TROUBLESHOOTING IN CONTROL CIRCUITS 237 10 . 2 . 9 Poor Maintenance If regular maintenance of a machine is not done the frequency of occurrence of faults will increase....

TROUBLESHOOTING IN CONTROL CIRCUITS 235

TROUBLESHOOTING IN CONTROL CIRCUITS 235

TROUBLESHOOTING IN CONTROL CIRCUITS 235 TROUBLESHOOTING IN CONTROL CIRCUITS 235 Electrical cum pressure could also be another combination problem. A particular operation of a machine may not happen due to fault in the control...

TROUBLESHOOTING IN CONTROL CIRCUITS 233

TROUBLESHOOTING IN CONTROL CIRCUITS 233

TROUBLESHOOTING IN CONTROL CIRCUITS 233 TROUBLESHOOTING IN CONTROL CIRCUITS 233 For example, a thermal sensitive overload relay may trip due to conduction of heat to it. A regular check for loose connection is the...

THREE – WIRE CONTROL

THREE – WIRE CONTROL

THREE-WIRE CONTROL THREE-WIRE CONTROL Three-wire control involves the use of a maintaining circuit . This method eliminates the need of the operator to press continuously on the push button to keep the coil energized...