BENSHAW M2L 3000, User Manual

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8 – Fault Conditions
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8 – Fault Conditions
This section contains a Fault Condition Table which provide descriptions, along with a suggested course of action, for each
Fault condition possible in the M2L 3000 drive.
Table Key
Fault Codes Each Fault has a unique code.
Fault Displayed Fault Displayed represents what will be displayed to the user on the HMI, at the top por-
tion of the Main Screen.
Reaction Type Different faults result in the drive reacting in different ways. In some fault conditions, the
drive immediately stops outputting voltage and opens the main contactor, resulting in the
motor coasting to a stop. For others, it can follow the deceleration ramp profile to a stop.
For those that stop immediately, some assert a shunt trip. Some faults require that the
control power be cycled in order to reset them. The
Reaction Type column codes are de-
fined as:

C The drive stops voltage output immediately, and the motor/load coasts to a
stop

D The motor/load decelerates to a stop following the deceleration ramp profile

S The drive asserts a shunt trip fail safe relay

F Requires a control power cycle to reset
Description The Description column provides basic information regarding what has occurred within
the system when a specific fault occurs.
Course of Action This column contains the recommended actions that can be taken in the field by on-site
technicians to remedy the fault condition. If the condition persists, contact Benshaw for
further assistance, or to arrange on-site repair.
WARNING : At any time the system is energized with Medium Voltage
power, apply appropriate personal protective equipment (PPE) and follow
safe electrical work practices when operating or working near the system.
See NFPA 70E.
Cabinet Fault Limit: <10kA @ 10 Cycles
Min Arc Boundary: 40 Inches
Recommended Min. PPE: #1 at > 40 inches
WARNING : Only qualified personnel familiar with the use and hazards of
medium voltage equipment are to perform work described in this set of in-
structions
WARNING : Before performing visual inspections, tests, or maintenance
on the equipment, disconnect all sources of electric power. Assume that
circuits are live until completely de-energized, tested, and tagged.
Pay particular attention to the design of the power system. Consider all
sources of power, including the possibility of backfeeding.
Use a properly rated voltage sensing device to confirm that the power is
fully removed.