46
3. Machine Main Power Shuts Down (Blue Indicator Off)
a.
PROBABLE CAUSES;
1) Sprinkler activated.
2) OL12 (overload #12) tripped.
3) UNDER VOLTAGE FEATURE of main disconnect has tripped.
4) Sprinkler circuit defective.
b.
POSSIBLE SOLUTIONS;
1) Check if the sprinkler is activated, is SPRINKLER RESET button lit? Is the sprinkler alarm horn
ON? Does the sprinkler water valve have its ON indicator extended?
If yes, it indicates that the sprinkler circuit has shutdown the Main Disconnect, press the lit
SPRINKLER RESET button, does it reset?
If NO, go to
paragraph 2 below
2) Verify that OL12 (overload #12) has not tripped
If YES, check circuit, reset OL12, and test
If NO, go to
paragraph 3 below
3) The main disconnect has an UNDER VOLTAGE DROP OUT FEATURE. This feature requires
that 110 VAC be present to engage the disconnect switch. If 110 VAC is removed from
Pin #51
and Pin #52
on the switch, the disconnect will drop out automatically. Verify that 110 volts AC is
supplied to the disconnect and that wires are secure.
If 110 VAC is present, the disconnect may be defective
If 110 VAC is not present go to the
beginning of section #3 at the top of the page
.
4) Sprinkler circuit may be defective.
Summary of Contents for ADS-464 II
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