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General
Required Equipment
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Understanding the Basic Principles
This guide is intended to help you define troubleshooting techniques and
procedures and help simplify servicing of the Bulletin 1395 DC Drive by
identifying likely causes for malfunction. The 1395 employs extensive
diagnostics to aid in correcting many malfunctions that may occur in the
system. This guide is designed to help interpret the diagnostic response of
the Drive when a malfunction occurs. It will also aid in diagnosing
malfunctions that do not solicit a fault response from the Drive. Possible
corrective measures will be explained to help get the Drive repaired or
functional as quickly as possible for all types of malfunctions.
ATTENTION: Only personnel familiar with the 1395 Drive
!
System and the associated machinery should perform
troubleshooting or maintenance functions on the Drive. Failure
to comply may result in personal injury and/or equipment
damage.
In addition to a Bulletin 1300 Programming Terminal the following should
be available before initiating any troubleshooting procedures:
• Digital Multimeter (DMM) capable of 1000VDC/750VAC, with a one
megohm minimum input impedance.
• Assorted screwdrivers (Phillips and Straight).
• Clamp on Ammeter (AC/DC) with current ratings to 3X rated armature
current output of 1395.
• Dual trace oscilloscope with differential capability, digital storage, with
two X10 and one X100 calibrated probes. (Optional but recommended.)
• Hand Tachometer used to monitor motor velocities.
• Bulletin 1395 Installation Manuals for:
– Programming Terminal (Bulletin 1300)
– Adapter Boards
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