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This voltage measurement can be made with a Fluke 87 meter (or equivalent). A
recording meter (Fluke 87) is preferred for intermittent problems. Set meter for
Volts DC and connect and take measurements as noted:
Connect from J3-25 to J3-24
Expected value = 5.0 VDC +/- .2 VDC
1.6 Environmental Problems:
Moisture:
Background
Moisture problems are typically encountered in outdoor applications. NEMA 4-
rated starter enclosures should be specified for these environments to minimize
moisture contamination. Moisture contamination can also be caused by the
condensation of saturated air inside the starter enclosure. The presence of
moisture can lead to a multitude of electrical connection related problems.
Moisture can accelerate corrosion build-up on metal surfaces typically found in
electrical connection points. The corrosion can create an open circuit between
the wire and the electrical contact. Corrosion can even cause a short circuit to
adjacent contact points. These types of faults are generally intermittent and are
affected by temperature, the total amount of moisture, and vibration. Visual
inspection is the best method of detecting these types of problems.
Procedure:
Remove power from machine.
Visually inspect all terminal connections inside the starter enclosure. This
includes all wiring that originates and ends at a screw terminal.
Unplug all connectors from the Intellisys controller. Remove “Option Module”.
Visually inspect all mating contact points at these connections.
Remove back cover from Intellisys. Insure static precautions are utilized before
handling circuit board. Visually inspect all electrical connectors. This includes
battery contact BAT1 (if available).
1.7 Temperature:
Background
Ambient operating temperature range is specified as 35° F to 115° F. Outdoor
modification option extends the ambient operating temperature range from –10°
F to 115° F. If these limits have been exceeded, abnormal operation can occur.
Many semiconductors inside the Intellisys have a maximum operating
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