Rockwell Automation Publication 750-IN001P-EN-P - April 2017 15
Chapter 1
Read the General Precautions
Qualified Personnel
Personal Safety
ATTENTION: Only qualified personnel familiar with adjustable frequency AC
drives and associated machinery can plan or implement the installation,
start-up, and subsequent maintenance of the system. Failure to comply can
result in personal injury and/or equipment damage.
ATTENTION: To avoid an electric shock hazard, verify that the voltage on the
bus capacitors has discharged completely before servicing.
Frames 1…7: Measure the DC bus voltage at the power terminal block by
measuring between the +DC and -DC terminals (see Figure 95
and Figure 13 for
location) or between the +DC and -DC test point sockets, if equipped. Also
measure between the +DC terminal or test point and the chassis, and between
the -DC terminal or testpoint and the chassis. The voltage must be zero for all
three measurements.
Frames 8…10: Measure the DC bus voltage at the DC+ and DC- TESTPOINT
sockets on the front of the power module (see Figure 98
for location).
ATTENTION: Hazard of personal injury or equipment damage exists when
using bipolar input sources. Noise and drift in sensitive input circuits can
cause unpredictable changes in motor speed and direction. Use speed
command parameters to help reduce input source sensitivity.
ATTENTION: Risk of injury or equipment damage exists. DPIâ„¢ or SCANportâ„¢
host products must not be directly connected together via 1202 cables.
Unpredictable behavior can result if two or more devices are connected in this
manner.
ATTENTION: The drive start/stop/enable 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 can be required to remove the AC line to the drive. An auxiliary braking
method can be required.
ATTENTION: Hazard of personal injury or equipment damage due to
unexpected machine operation exists if the drive is configured to
automatically issue a Start or Run command. Do not use these functions
without considering applicable local, national, and international codes,
standards, regulations, or industry guidelines.
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