Rockwell Automation Reliance Electric MD65, User Manual

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Installing Control Wiring
6-1
C
HAPTER
6
Installing Control Wiring
This chapter describes how to wire the signal and I/O terminal strip
for stop, speed feedback, and remote control signals.
To access the control terminal block, remove the drive cover (refer
to chapter 5).
Terminal block connections are detailed in figure 6.1.
6.1 Stop Circuit Requirements
Depending upon the requirements of the application, the MD65
drive can be configured to provide either a coast-to-rest or a ramp-
to-rest operational stop without physical separation of the power
source from the motor. A coast-to-rest stop turns off the transistor
power device drivers. A ramp-to-rest stop fires the transistor power
device drivers until the motor comes to a stop, and then turns off the
power devices.
In addition to the operational stop, you must provide a hardwired
emergency stop external to the drive. The emergency stop circuit
must contain only hardwired electromechanical components.
Operation of the emergency stop must not depend on electronic
logic (hardware or software) or on the communication of commands
over an electronic network or link.
Note that the hardwired emergency stop you install can be used at
any time to stop the drive.
!
ATTENTION: You must provide an external,
hardwired emergency stop circuit outside of the
drive circuitry. This circuit must disable the system
in case of improper operation. Uncontrolled
machine operation can result if this procedure is not
followed. Failure to observe this precaution could
result in bodily injury.