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Section 1
General Information
1-4 General Information MN1851
Caution: Suitable for use on a circuit capable of delivering not more than the RMS
symmetrical short circuit amperes listed here at rated voltage.
Horsepower
rms Symmetrical Amperes
1–50 5,000
Caution: To prevent equipment damage, be certain that the input power has
correctly sized protective devices installed as well as a power disconnect.
Caution: Avoid locating the control immediately above or beside heat generating
equipment, or directly below water or steam pipes.
Caution: Avoid locating the control in the vicinity of corrosive substances or
vapors, metal particles and dust.
Caution: Do not connect AC power to the control terminals U, V and W. Connecting
AC power to these terminals may result in damage to the control.
Caution: Baldor recommends not using “Grounded Leg Delta” transformer power
leads that may create ground loops and degrade system performance.
Instead, we recommend using a four wire Wye.
Caution: Logic signals are interruptible signals; these signals are removed when
power is removed from the drive.
Caution: Controls are intended to be connected to a permanent main power source,
not a portable power source. Suitable fusing and circuit protection devices
are required.
Caution: The safe integration of the drive into a machine system is the
responsibility of the machine designer. Be sure to comply with the local
safety requirements at the place where the machine is to be used. In
Europe this is the Machinery Directive, the ElectroMagnetic Compatibility
Directive and the Low Voltage Directive. In the United States this is the
National Electrical code and local codes.
Caution: Controls must be installed inside an electrical cabinet that provides
environmental control and protection. Installation information for the drive
is provided in this manual. Motors and controlling devices that connect to
the drive should have specifications compatible to the drive.
Caution: Do not tin (solder) exposed wires. Solder contracts over time and may
cause loose connections.
Caution: Electrical components can be damaged by static electricity. Use ESD
(electro-static discharge) procedures when handling this control.
Caution: Ensure that encoder wires are properly connected. Incorrect installation
may result in improper rotation or incorrect commutation.
Caution: The holes in the top and bottom of the enclosure are for cable clamps. Be
sure to use an M4 bolt 12mm in length. Longer bolts may short circuit the
electrical components inside the control.