6-2
MD65 AC Drive User Manual
6.2
Motor Start/Stop Precautions
Important points to remember about I/O wiring:
•
Always use copper wire.
•
Wire with an insulation rating of 600V or greater is recommended.
•
Control and signal wires should be separated from power wires
by at least 0.3 meters (1 foot).
Important:
I/O terminals labeled “Common” are not referenced to
the safety ground (PE) terminal and are designed to
greatly reduce common mode interference.
!
ATTENTION: A contactor or other device that
routinely disconnects and reapplies the AC line to the
drive to start and stop the motor can cause drive
hardware damage. The drive is designed to use
control input signals that will start and stop the motor.
If used, the input device must not exceed one
operation per minute or drive damage can occur.
Failure to observe this precaution can result in
damage to, or destruction of, equipment.
ATTENTION: The drive start/stop control circuitry
includes solid-state components. If hazards due to
accidental contact with moving machinery or
unintentional flow of liquid, gas or solids exist, an
additional hardwired stop circuit may be required to
remove the AC line to the drive. When the AC line is
removed, there will be a loss of any inherent
regenerative braking effect that might be present -
the motor will coast to a stop. An auxiliary braking
method may be required.
!
ATTENTION: Driving the 4-20 mA analog input from
a voltage source could cause component damage.
Verify proper configuration prior to applying input
signals.
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