Rockwell Automation DC3N DC Drive User Guide, 1/4-2HP-115/230 VAC - Manual (Page 19)

11 Installation
ATTENTION: Do not connect this equipment with power applied. Failure to
heed this directive may result in fire or serious injury.
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Power, fuse and motor connections
Connect the power input leads, an external line fuse and a DC motor to the drive’s
printed circuit board (PCB) as shown in Figure 6.
Motor
Connections
ATTENTION: To provide the motor with overload protection, local, national,
and international codes (e.g.,NEC/CEC) require that a motor thermostat,
internal to the motor, be installed or an electronic thermal motor overload relay,
sized to protect the motor, be installed between the motor and the drives output
terminals.
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Connect a motor to PCB terminals A1 and A2. Ensure that the motor voltage
rating is consistent with the drive’s output voltage.
Power input
Connect the AC line power leads to terminals L1 and L2, or to a double-throw,
single-pole master power switch as shown in Figure 6 (recommended).
Master power switch
ATTENTION: Installation of a master power switch in the input line is
required. This is the only way to disconnect power from the motor. The user is
responsible for assuring safe conditions for operating personnel by providing
suitable guards, audio or visual alarms, or other devices. Failure to observe
these precautions could result in bodily injury.
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Install a master power switch in the voltage input line, as shown in Figure 6. The
switch contacts should be rated at a minimum of 200% of motor nameplate current
and 250 volts.