Rockwell Automation 1395 ControlNet Communication Board - Manual (Page 71)

Chapter
7
Publication 1395.5.37 – March, 1999
Periodic Maintenance
Preventative Maintenance
ATTENTION: Servicing energized industrial equipment can be
hazardous. Severe injury or death can result from electrical
shock, burn, or unintended actuation of controlled equipment.
Recommended practice is to disconnect and lock out control
equipment from power sources, and allow stored energy in
capacitors to dissipate, if present. If it is necessary to work in the
vicinity of energized equipment, the safety related work practices
of NFPA 70E, Electrical Safety Requirements for Employee
Workplaces, must be
followed.
ATTENTION: Use of other than factory recommended test
equipment as detailed below for solid state controls may result
in injury to personnel, damage to the control or test equipment
or unintended actuation of the controlled equipment.
Potentially fatal voltages may result from improper useage of
an oscilliscope or other test equipment. Refer to equipment
safety instructions for all test equipment before using with the
CNA board. All cautions and warnings that apply to servicing
and troubleshooting a 1395 Drive found in the 1395 Instruction
Manual, MUST be followed when servicing the CNA board.
Recommended Tools and Equipment – The following equipment is
recommended for maintaining and troubleshooting a 1395 Drive and
CNA board:
S Multimeter capable of 1000V DC/ 750V AC, with input resistance
of at least 1 megohm.
S Test leads for multimeter
S Assorted screwdriver (phillips and blade) and a set of open end
wrenches.
S Clamp-on Ammeter (AC and DC with current ratings to match drive
ratings).
S Programming Terminal
S Dual trace oscilliscope with A minus B quasi differential capability.
S X100 probes for oscilliscope.
Periodic Inspection – Industrial control equipment should be
inspected periodically. Inspection intervals should be based on
environmental and operating conditions, and adjusted as indicated by
experience. An initial inspection within 3 to 4 months after installation
is suggested. Applicable parts of the following guidelines should be
used:
Contamination – If inspection reveals that dust, dirt, moisture or
other contamination has reached the control equipment or CNA board,