Rockwell Automation FlexPak 3000 DC Drive Version 4.3 - Manual (Page 62)

4-2 FlexPak 3000 DC Drive Hardware Reference Version 4.3
4.3 Verify DC Motor Connections
Verify that all DC motor connections are correct.
• Recheck all motor connections for tightness and correct identification.
• Verify that there is no path to ground in either the DC motor armature circuit, the
shunt field circuit or the thermostat circuit. Connect one lead of a standard ohm
meter to the motor frame and the other lead to the two armature leads; then
connect to the two thermostat leads, and then to the two field leads. If a reading of
less than 100,000 ohms is observed, a ground condition exists and MUST be
corrected before power is applied. Check that the field winding is not open or
shorted.
• Verify the continuity of the motor thermostat and its proper connection to
Regulator board terminals 13 and 14. If a motor thermostat has been installed,
verify that its circuit maintains continuity in the terminal 13 and 14 circuit.
4.4 Verify Optional Kits
Verify that each optional kit has been installed correctly according the appropriate
instructions. Refer to the appropriate instruction manuals.
!
ATTENTION: A megohmmeter can be used for this motor ground check,
but all conductors between the motor and the drive must be
disconnected. The megohmmeter’s high voltage can damage the drive’s
electronic circuits. Disconnect all conductors between the motor and the
drive before using a megohmmeter for this motor ground check. Failure
to observe this precaution could result in damage to, or destruction of,
the equipment.