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Section 1
General Information
General Information
General Information 1-1
MN850
Introduction
The Baldor digital three phase multipurpose soft–starter provides reduced voltage, three
phase motor starting and control over the four periods of motor operation. First, at
“Start–up” (soft–start), the motor starting voltage increases from an initial preset level to
full motor voltage to provide smooth motor acceleration to full speed. Second, the “Dwell”
period begins when maximum motor voltage is achieved. This dwell period allows time
for the motor and load to stabilize. The third period is called “Motor run” (sometimes
bypass is used during this portion of the cycle). The last period is “Stop” the motor can
be stopped gradually by reducing the torque (useful in pump applications).
phase motor starting and control over the four periods of motor operation. First, at
“Start–up” (soft–start), the motor starting voltage increases from an initial preset level to
full motor voltage to provide smooth motor acceleration to full speed. Second, the “Dwell”
period begins when maximum motor voltage is achieved. This dwell period allows time
for the motor and load to stabilize. The third period is called “Motor run” (sometimes
bypass is used during this portion of the cycle). The last period is “Stop” the motor can
be stopped gradually by reducing the torque (useful in pump applications).
Soft–start and soft–stop control provide an effective means to start and stop material
handling equipment and pumping equipment to minimize spillage and water hammer
problems. Selectable preset parameters for specific application allows simple
programming.
handling equipment and pumping equipment to minimize spillage and water hammer
problems. Selectable preset parameters for specific application allows simple
programming.
Several product features make this digital soft–start control easy to use:
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Selectable preset parameter settings for pumps, high inertia loads, conveyors
and compressors.
and compressors.
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Auto features simplify adjustments for optimum starting.
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Energy savings through real time power factor monitoring.
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Smooth starts and stops for impact free machine operation.
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Familiar interface, 32 character LCD Display and Keypad.
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Simple parameter access through 4 level programming.
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Quick exit from programming by using the “#” (Exit) button.
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Operating Current, Voltage and Power Factor displays.
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Fault indication and Trip Log.
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Programmable inputs and outputs.
Limited Warranty
For a period of two (2) years from the date of original purchase, BALDOR will repair or replace
without charge controls and accessories which our examination proves to be defective in
material or workmanship. This warranty is valid if the unit has not been tampered with by
unauthorized persons, misused, abused, or improperly installed and has been used in
accordance with the instructions and/or ratings supplied. This warranty is in lieu of any other
warranty or guarantee expressed or implied. BALDOR shall not be held responsible for any
expense (including installation and removal), inconvenience, or consequential damage,
including injury to any person or property caused by items of our manufacture or sale. (Some
states do not allow exclusion or limitation of incidental or consequential damages, so the
above exclusion may not apply.) In any event, BALDOR’s total liability, under all
circumstances, shall not exceed the full purchase price of the control. Claims for purchase
price refunds, repairs, or replacements must be referred to BALDOR with all pertinent data as
to the defect, the date purchased, the task performed by the control, and the problem
encountered. No liability is assumed for expendable items such as fuses.
Goods may be returned only with written notification including a BALDOR Return
Authorization Number and any return shipments must be prepaid.
without charge controls and accessories which our examination proves to be defective in
material or workmanship. This warranty is valid if the unit has not been tampered with by
unauthorized persons, misused, abused, or improperly installed and has been used in
accordance with the instructions and/or ratings supplied. This warranty is in lieu of any other
warranty or guarantee expressed or implied. BALDOR shall not be held responsible for any
expense (including installation and removal), inconvenience, or consequential damage,
including injury to any person or property caused by items of our manufacture or sale. (Some
states do not allow exclusion or limitation of incidental or consequential damages, so the
above exclusion may not apply.) In any event, BALDOR’s total liability, under all
circumstances, shall not exceed the full purchase price of the control. Claims for purchase
price refunds, repairs, or replacements must be referred to BALDOR with all pertinent data as
to the defect, the date purchased, the task performed by the control, and the problem
encountered. No liability is assumed for expendable items such as fuses.
Goods may be returned only with written notification including a BALDOR Return
Authorization Number and any return shipments must be prepaid.