2 PowerFlex 755 On-Machine Packaged Drive
Rockwell Automation Publication 750-PC004B-EN-P - April 2019
Personal Safety and Precautions
1. From user-supplied 400/480V AC, 3-phase, 50/60-Hz delta-Wye connected power distribution with solidly grounded neutral.
2. If the user-supplied input power distribution exceeds 20 times the drive rating kVA, additional impedance must be supplied in
the form of an input line reactor or isolation transformer.
Avoid Electrostatic Discharge
Electrical Safety Considerations
Environment and Enclosure
Enclosure Specifications
This section lists general specifications for the enclosure. Specifications for the components in the On-Machine
Packaged Drive are in their respective publications, see Additional Resources
.
IMPORTANT If your On-Machine Packaged Drive includes the Safe Torque Off (20-750-S3) or
Integrated Safety Functions (20-750-S4) option module, see the respective user manual,
listed in the Additional Resources
table, before operating your drive in a safety system.
ATTENTION: This unit has remote sources of power. Disconnect all power sources before the cover
is removed. Failure to comply could result in death or serious injury.
ATTENTION: Do not attempt to service internal components when the unit is energized.
Complete lock out / tag out procedures for all input power sources. Then, remove input power
(L123 and 24V DC control power) from terminals CP and CPBR (if used) before cover removal and
inspection. Failure to comply can result in death or serious injury.
ATTENTION: The 24V DC control power source can be used to aid in troubleshooting, but you
must follow local codes while the control power is energized, input power L123 is not energized,
and the cover is removed. Control power is connected to receptacles CP (24V DC auxiliary power)
and CPBR (24V DC brake options: B2and B3). Failure to comply can result in serious injury or
death.
ATTENTION: To avoid an electric shock hazard, verify that the voltage on the bus capacitors has
entirely discharged before servicing.
ATTENTION: The packaged drive contains high-voltage capacitors that take time to discharge
after removal of the main power supply. Before working on the drive, isolate the main power
supply from the line input (L123). Wait 3 minutes for the capacitors to discharge to minimal
voltage levels. Failure to do so can result in personal injury or death.
ATTENTION:
• Installation, adjustments, adding into service, use, assembly, disassembly, and maintenance
shall be performed by suitably trained personnel in accordance with the applicable code of
practice.
• If this equipment is used in a manner not specified by the manufacturer, the protection that is
provided by the equipment, may be impaired.
WARNING: Circumstances that can cause an explosion may exist, which may lead to personal
injury or death, property damage, or economic loss. Tripping of the instantaneous-trip circuit
breaker is an indication that a fault current has been interrupted. Current-carrying components of
a magnetic motor controller should be examined and replaced if they are damaged to reduce the
risk of fire or electrical shock.
ATTENTION: This publication is intended for qualified service personnel responsible for installing
and servicing these devices. The user must have previous experience and a basic understanding of
electrical terminology, configuration procedures, required equipment, and safety precautions.
ATTENTION: The National Electrical Code (NEC), NFPA79, and any other governing regional or
local code overrules the information in this publication. Rockwell Automation cannot assume
responsibility for the compliance or proper installation of the On-Machine Packaged Drive or
associated equipment. A hazard of personal injury and/or equipment damage exists if codes are
ignored during installation.
ATTENTION: This drive contains ESD (Electrostatic Discharge) sensitive parts and assemblies.
Static control precautions are required when you install, test, service, or repair this assembly.
Component damage can result if ESD control procedures are not followed. If you are not familiar
with static control procedures, see an applicable ESD protection handbook.
U (T1)
V (T2)
W (T3)
SHLD
Exposed Structure
and/or Building Steel
Shielded
Motor Cable
M35
R (L1)
S (L2)
T (L3)
Maximum
65,000 A SCCR
Exposed Structure
and/or Building Steel
DC+ DC-
IMPORTANT This lock out / tag out is only for upstream power. During initial installation, the
On-Machine Packaged Drive does not have power. The breakers should be in the OFF
position when the unit arrives. Verify that all breakers are off before installation is started.
For more information, see the Circuit Breakers
section.
L1 L2 L3
O
I
IMPORTANT To comply with the CE Low Voltage Directive (LVD), all connections to this equipment
must be powered from a source compliant with the following:
• Safety extra low voltage (SELV) Supply
• Protected extra low voltage (PELV) Supply
To comply with UL/C-UL requirements, this equipment must be powered from a source
compliant with the following:
• IEC 60950-1 Ed. 2.1, Clause 2.2 - SELV Circuits
ATTENTION: To avoid electrical shock, open the appropriate upstream protection (disconnect
switch or branch circuit protection) before connecting and disconnecting cables.
ATTENTION: Risk of shock exists. Unused receptacles should be capped, the environmental rating
may not be maintained when receptacles remain uncapped.
ATTENTION: Do not operate controls or open covers without appropriate personal protective
equipment. Failure to comply can result in serious injury or death.
IMPORTANT This equipment is supplied as enclosed equipment. It should not require an additional
system enclosure when used in locations consistent with the enclosure type ratings
stated in the Enclosure Specifications
section of this publication. Subsequent sections of
this publication may contain additional information regarding specific enclosure type
ratings, beyond what this product provides, that are required to comply with certain
product safety certifications.
See also the following: NEMA 250 and IEC 60529, as applicable, for explanations of the
degrees of protection provided by enclosures
IMPORTANT This equipment is not intended for use in residential environments and may not provide
adequate protection to radio communication services in such environments.
IMPORTANT This equipment is intended for use in overvoltage Category III applications (as defined in
IEC 60664-1), at altitudes up to 2000 m (6562 ft) at the default carrier frequency without
derating. See PowerFlex 755 On-Machine Packaged Drive Technical Data, publication
750-TD003
for altitude and derating information.
At the End of Life, this equipment should be collected separately from any unsorted municipal
waste.
Condition Requirement
Ambient Operating Temperature 0 °C…40 °C (32 °F…104 °F)
Storage Temperature -20°C…70 °C (-4°F…158 °F)
Relative Humidity 5…95% (non-condensing)
Cabinet Rating
(1)
(1) Enclosure provides protection from dust and falling debris.
UL Type 12 / NEMA 12 / IP66 (indoor use only)
Enclosure Dimensions (H x W x D) 609.6 mm x 609.6 mm x 274.4 mm (24 in x 24 in x 11 in)
Product Dimensions Installed (H x W x D) 711.2 mm x 649.8 mm x 391.9 mm (28 in x 25.58 in x 15.43 in)
Packaging Dimensions (H x W x D)
with product inside
475 mm x 800 mm x 800 mm (18.69 in x 31.5 in x 31.5 in)
Weight 47.62 kg (105 lbs (apx.))
Weight with packaging 63.95 kg (141 lbs (apx.))
Short-circuit current rating Maximum short circuit rating 65,000 A RMS symmetrical
Incoming Power and
Power Ratings and Voltages
(2)
(2) All ratings to support continuous duty. There is no de-rate for duty cycle variations. All ratings are for normal duty except for
the variation that has 14 A Heavy-Duty rating.
400V AC, 3 HP, 50-Hz ratings:
• 8.7 A, 4 kW, Normal Duty
• 11.5 A, 5.5 kW, Normal Duty
• 15.4 A, 7.5 kW, Normal Duty
• 22 A, 11 kW, Normal Duty
480V AC, 3 PH, 60-Hz ratings:
•8 A, 5 HP, Normal Duty
• 11 A, 7.5 HP, Normal Duty
• 14 A, 10 HP, Normal Duty
• 22 A, 15 HP, Normal Duty
• 14 A, 15 HP, Heavy Duty (only when Motor Type = M2)
WARNING: Circumstances that can cause an explosion may exist, which may lead to personal
injury or death, property damage, or economic loss. Incoming power requirements must be a
delta-Wye solid ground neutral to maintain the CE/UL certification. If the user supplied input
power distribution exceeds 20 times the drive rating kVa, additional impedance must be supplied
in the form of an input line reactor or isolation transformer.