Baldor Baldor Electric Pencil Sharpener User Manual

Digital Soft–Start
Installation & Operating Manual
5/03
MN850
Table of Contents
Section 1
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiving, Inspection and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Keypad Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Remote Keypad Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Main Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UL Required Fuses for Short Circuit Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Input Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor Overload and Thermal Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In–Delta Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wire Size and Protection Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three Wire Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Two Wire Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NEMA 12/4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reversing Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start–Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Status Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Entry Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Navigation Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Power–up Settings & Select Keypad Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select Keypad Starting and Keypad Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor Starting Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad Starting and Running the Motor with Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad Starting and Running the Motor in Optimise Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Start and Running the Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor Stopping Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stopping the Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MN850
1-1
1-1
1-3
1-4
2-1
2-1
2-1
2-2
2-2
2-3
2-4
2-4
2-4
2-5
2-5
2-6
2-7
2-7
2-8
2-9
2-9
2-10
2-11
2-12
3-1
3-1
3-2
3-2
3-3
3-3
3-3
3-3
3-4
3-5
3-5
3-6
3-6
3-7
3-8
3-9
3-9
3-10
3-10
Table of Contents i
Section 4
Parameter Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applications Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto Features Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Permanent Store Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Password Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trips Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mapping to an Output Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Off Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Noise Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Relay and Contactor Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Motor Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 6
Specifications and Product Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three Phase Digital Soft–Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Size 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Size 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Size 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Size 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A
CE Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B
Parameter Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix D
Voltage Surge Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Keypad Mounting Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii Table of Contents
4-1
4-1
4-1
4-1
4-2
4-3
4-5
4-5
4-5
4-6
4-6
4-6
4-7
4-8
5-1
5-1
5-1
5-1
5-4
5-4
5-4
5-4
5-4
6-1
6-1
6-1
6-4
6-4
6-5
6-6
6-7
A-1
B-1
C-1
D-1
E-1
E-2
MN850
Section 1
General Information
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).
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.
Several product features make this digital soft–start control easy to use:
S
Selectable preset parameter settings for pumps, high inertia loads, conveyors
and compressors.
S
S
S
S
S
S
S
S
S
Auto features simplify adjustments for optimum starting.
Energy savings through real time power factor monitoring.
Smooth starts and stops for impact free machine operation.
Familiar interface, 32 character LCD Display and Keypad.
Simple parameter access through 4 level programming.
Quick exit from programming by using the “#” (Exit) button.
Operating Current, Voltage and Power Factor displays.
Fault indication and Trip Log.
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.
MN850
General Information 1-1
Safety Notice
This equipment contains voltages that may be as high as 600 volts! Electrical shock can
cause serious or fatal injury. Only qualified personnel should attempt the start-up
procedure or troubleshoot this equipment.
This equipment may be connected to other machines that have rotating parts or parts
that are driven by this equipment. Improper use can cause serious or fatal injury. Only
qualified personnel should attempt the start-up procedure or troubleshoot this equipment.
PRECAUTIONS
WARNING: Do not touch any circuit board, power device or electrical connection before you
first ensure that power has been disconnected and there is no high voltage present
from this equipment or other equipment to which it is connected.
Electrical shock can cause serious or fatal injury.
WARNING: Be sure that you are completely familiar with the safe operation of this equipment.
This equipment may be connected to other machines that have rotating parts or
parts that are controlled by this equipment. Improper use can cause serious or
fatal injury. Only qualified personnel should attempt the start-up procedure or
troubleshoot this equipment.
WARNING: Be sure the system is properly grounded before applying power. Do not apply AC
power before you ensure that all grounding instructions have been followed.
Electrical shock can cause serious or fatal injury.
Caution:
Install MOV protection for the control. See Appendix D for information.
Caution:
Do not remove keypad cable with power applied to unit. Disconnecting the keypad
cable with power applied will damage the control.
Caution:
Shearpin trip feature is not equivalent to short circuit overcurrent protection
required by NEC. Instantaneous overcurrent protection must be provided by
circuit interrupting device (fuse or breaker).
Caution:
Suitable for use on a circuit capable of delivering not more than the RMS
symmetrical short circuit amperes listed here at rated voltage (with fuses specified
in Section 2).
Rated Amperes
RMS Symmetrical Amperes
9–59
5,000
72–242
10,000
300–500
18,000
600–750
30,000
900–1200
42,000
Caution:
Do not “Megger” test the motor while it is connected to the soft–start control.
Failure to disconnect motor will result in extensive damage to the control. The
control is tested at the factory for high voltage / leakage resistance as part of
Underwriter Laboratory requirements. Do not megger any part of the control.
Caution:
Do not connect power factor correction capacitors to motor terminals. If power
factor correction capacitors are necessary, contact Baldor.
Caution:
If a brake motor is used, the initial starting voltage may not be sufficient to release
the brake. It may be necessary to provide separate power for the brake release
coil.
Caution:
Do not connect AC incoming line power to the Motor terminals T1, T2 and T3.
Connecting AC power to these terminals may result in damage to the control.
1-2 General Information
MN850
Section 2
Installation
Receiving, Inspection and Storage
When you receive your control, there are several things you should do immediately.
1.
Observe the condition of the shipping container and report any damage
immediately to the commercial carrier that delivered your control.
2.
Remove the control from the carton. Inspect for shipping damage and report
any damage immediately to your commercial carrier.
3.
Verify that the part number of the control you received is the same as the part
number listed on your purchase order.
4.
If the control is to be stored for several weeks before use, be sure that it is
stored in a location that is clean, dry and free from corrosives and
contaminants. Storage temperature range is –25°C to 55°C.
Be sure to read an become familiar with the safety notices in Section 1 of this manual.
Failure to observe the product safety notices can result in injury or equipment damage.
If you have questions, please contact your Baldor distributor. Do not proceed unless you
understand the installation and operation requirements and safety notices.
Physical Location
The location of the soft–start control is important. It should be installed in an area that is
protected from direct sunlight, corrosives, harmful gases or liquids, dust, metallic
particles, and vibration. Exposure to these elements can reduce the operating life and
degrade performance of the control.
Several other factors should be carefully evaluated when selecting a location for
installation:
1. For effective cooling and maintenance, the control should be mounted vertically
on a flat, smooth, non-flammable vertical surface. Heat dissipation of 3.3 watts
per running FLA of the motor must be provided. All factory supplied enclosures
provided adequate heat dissipation with ambient temperatures to 40°C.
2. If the control is mounted in an enclosure, sufficient air flow must be provided
(see Table 2-1). The fan or blower must be rated for at least 0.8 cubic feet of
30°C air per minute for each ampere of motor FLA rating.
Table 2-1 Air Flow Clearance Requirements
Soft–Start
Size
1
2
3
3.
4.
5.
6.
7.
8.
9.
MN850
Front
inches (mm)
1 (25)
1 (25)
1 (25)
Top & Bottom
inches (mm)
3 (75)
3 (75)
8 (200)
Sides
inches (mm)
0.6 (15)
0.6 (15)
3.5 (90)
Keep high voltage and low voltage wiring separated. If the conduits must
cross, be sure that they cross at 90° angles only.
Motor overload protection is required for motor branch circuits that do not have
an overload protection device.
Front access must be provided to allow the control cover to be opened or
removed for service and to allow viewing of the Keypad Display (1 inch (25mm)
minimum).
Altitude derating. Up to 3300 feet (1000 meters), no derating required. Above
3300 feet, derate peak output current by 1% for each 330 feet above 3300 feet.
6600 feet (2000 meters) maximum.
Temperature derating. Up to 40°C, no derating required. Above 40°C, derate
full load current by 2% per °C above 40°C.
Maximum ambient is 60°C (at 40% derate).
Short circuit current and overcurrent devices are required for soft–start controls
that do not have a circuit breaker or fusible disconnect switch.
Dust–proof NEMA 12, NEMA 4 non–ventilated enclosure will require an end of
ramp Bypass contactor. This requires additional hardware. Refer to Figure 2-6
for details.
Installation 2-1
Cover Removal
Size 2
Size 1
Remove Cover
1. Remove two cover screws.
2. Pull bottom of cover (held by cover
screws) and lift cover off of top hinge.
Cover
Screws
Remove Cover
1. Remove four cover screws.
2. Remove cover.
Cover
Screws
L1
L2
L3
Control Board
Size 3, 4
J2 J3 J4
D5
22
24
21
12
14
11
S0
S1
Remove Cover
1. Remove four cover screws.
2. Open cover (hinges on left side).
Cover
Screws
115
Inside View
(Terminal
Locations)
T1
T2
T3
X1 X2
Remote Keypad Installation
Figure 2-1 Remote Keypad Board Installation
Firmware
J7 Connector
Remote Keypad Board
Remote Keypad Connector
Procedure:
2-2 Installation
1.
Remove cover and locate J7 connector on the control board (Figure 2-1).
2.
Remove old Firmware IC and install new Firmware IC. Be careful to use
removal and insertion tools and anti–static procedures.
3.
Install Remote Keypad Board on the J7 connector.
4.
Connect remote keypad cable at Remote Keypad Connector.
5.
Install cover.
6.
Refer to the following Optional Remote Keypad Installation procedure and
mount the keypad.
7.
Connect the keypad cable to the remote keypad.
MN850
Section 1
General Information
Optional Remote Keypad Installation The keypad may be remotely mounted using optional Baldor keypad
extension cable. Keypad assembly (white - DC00005A-01; gray - DC00005A-02) comes
complete with the screws and gasket required to mount it to an enclosure. When the
keypad is properly mounted to a NEMA Type 4X enclosure, it retains the Type 4X rating.
Mounting Instruction:
Mounting Instructions:
MN850
Tools Required:
•
Center punch, tap handle, screwdrivers (Phillips and straight) and crescent
wrench.
•
8-32 tap and #29 drill bit (for tapped mounting holes) or #19 drill (for clearance
mounting holes).
•
1-1/4″ standard knockout punch (1-11/16″ nominal diameter).
•
RTV sealant.
•
(4) 8-32 nuts and lock washers.
•
Extended 8-32 screws (socket fillister) are required if the mounting surface is
thicker than 12 gauge and is not tapped (clearance mounting holes).
•
Remote keypad mounting template. A tear out copy is provided at the end of
this manual for your convenience. (Photo copy or tear out.)
For tapped mounting holes
1. Locate a flat 4″ wide x 5.5″ minimum high mounting surface. Material should
be sufficient thickness (14 gauge minimum).
2. Place the template on the mounting surface or mark the holes as shown.
3. Accurately center punch the 4 mounting holes (marked A) and the large
knockout (marked B).
4. Drill four #29 mounting holes (A). Thread each hole using an 8-32 tap.
5. Locate the 1-1/4″ knockout center (B) and punch using the manufacturers
instructions.
6. Debur knockout and mounting holes making sure the panel stays clean and flat.
7. Apply RTV to the 4 holes marked (A).
8. Assemble the keypad to the panel. Use 8–32 screws, nuts and lock washers.
9. From the inside of the panel, apply RTV over each of the four mounting screws
and nuts. Cover a 3/4″ area around each screw while making sure to completely
encapsulate the nut and washer.
For clearance mounting holes
1. Locate a flat 4″ wide x 5.5″ minimum high mounting surface. Material should
be sufficient thickness (14 gauge minimum).
2. Place the template on the mounting surface or mark the holes as shown on the
template.
3. Accurately center punch the 4 mounting holes (marked A) and the large
knockout (marked B).
4. Drill four #19 clearance holes (A).
5. Locate the 1-1/4″ knockout center (B) and punch using the manufacturers
instructions.
6. Debur knockout and mounting holes making sure the panel stays clean and flat.
7. Apply RTV to the 4 holes marked (A).
8. Assemble the keypad to the panel. Use 8–32 screws, nuts and lock washers.
9. From the inside of the panel, apply RTV over each of the four mounting screws
and nuts. Cover a 3/4″ area around each screw while making sure to completely
encapsulate the nut and washer.
Installation 2-3
AC Main Circuit
Power Disconnect
A power disconnect should be installed between the input power service and the control
for a fail safe method to disconnect power.
Protective Devices
Recommended fuse sizes are based on the following:
175% of maximum continuous current for time delay.
300% of maximum continuous current for Fast or Very Fast action.
Note: These general size recommendations do not consider harmonic currents or
ambient temperatures greater than 40°C.
Be sure a suitable input power protection device is installed. Use the recommended
circuit breaker or fuses listed in Table 2-5 (Wire Size and Protection Devices). Input and
output wire size is based on the use of copper conductor wire rated at 75 °C. The table is
specified for NEMA B motors.
2-4 Installation
Circuit Breaker:
3 phase, thermal magnetic.
Equal to GE type THQ or TEB for 230VAC or
Equal to GE type TED for 460VAC and 575VAC.
Fast Action Fuses:
230VAC, Buss KTN
460VAC, Buss KTS to 600A (KTU for 601 to 1200A)
Very Fast Action:
230VAC, Buss JJN
460VAC, Buss JJS
Time Delay Fuses:
230VAC, Buss FRN
460VAC, Buss FRS to 600A (KLU for 601 to 1200A)
MN850
UL Required Fuses for Short Circuit Rating
UL requires R/C fuses, special purpose fuses (JFHR2) or semiconductor fuses rated
700VAC be used to obtain the short circuit current ratings required by UL.
Model Number
MD9 to MD16
MD23 to MD30
MD44
MD59
MD72 to MD85
MD105 to MD146
MD174 to MD202
MD242
MD300
MD370
MD500
MD600
MD750
MD900
MD1100
MD1200
Fuse Manufacturer
Bussman (300 KA A.I.C.)
Ferraz (200 KA A.I.C.)
Catalog Number
Catalog Number
170M3110
6.6 URD 30 D08 A 0063
170M3112
6.6 URD 30 D08 A 0100
170M3114
6.6 URD 30 D08 A 0160
170M3115
6.6 URD 30 D08 A 0200
170M3116
6.6 URD 30 D08 A 0250
170M3119
6.6 URD 30 D08 A 0400
170M3121
6.6 URD 30 D08 A 0500
170M4114
6.6 URD 31 D08 A 0500
170M4114
6.6 URD 31 D08 A 0500
170M4116
6.6 URD 31 D08 A 0630
170M6113
6.6 URD 33 D08 A 0900
170M6113
6.6 URD 33 D08 A 0900
170M6116
6.6 URD 33 D08 A 1250
170M6116
6.6 URD 33 D08 A 1250
170M6116
(2) 170M6116
Main Input Contactor
Fuse
Current Rating
Amperes
63
100
160
200
250
400
500
500
500
630
900
900
1250
1250
1500
(2) 1000
Short Circuit Rating
Amperes
5,000
5,000
5,000
5,000
10,000
10,000
10,000
10,000
18,000
18,000
18,000
30,000
30,000
42,000
42,000
42,000
An IEC or NEMA rated contactor is recommended at the input power to the control. The
soft–start control uses three pairs of SCR (silicon controlled rectifier) semiconductor
devices that do not positively disconnect power. Figure 2-1 shows that the input
contactor provides a positive disconnect.
Table 2-2 Connection Descriptions
Terminal
L1, L2, L3
T1, T2, T3
X1, X2
S1, S0
Relay K1
Relay K2
MN850
Description
Input AC power terminals. Connect input isolated 3 phase supply (any phase to any terminal).
Output Power Terminals. Connect an induction motor to these terminals. For correct motor rotation,
connection of these phases must correspond with the supply connections (L1, L2, L3).
Control Supply Input. The internal circuits require power from a 115VAC or 230VAC source (Table 2-3).
A selector switch is provided to select the voltage range of the source that is connected to this input.
Remote Start/Stop Input. A voltage present across these terminals will initiate a “Start”.
Removing the voltage from across these terminals will initiate a “Stop”.
Note that the factory setting is keypad Start/Stop.
Pins 11 and 12 are the normally closed “Run” relay contacts.
Pins 11 and 14 are the normally open “Run” relay contacts.
Pins 21 and 22 are the normally closed “Top of Ramp” relay contacts.
Pins 21 and 24 are the normally open “Top of Ramp” relay contacts.
Installation 2-5
Figure 2-1 Power and Motor Circuit Connections
115/230VAC
Note 2
L1
Note 1
L2
L3
Earth
L1
* Circuit
Breaker
or
*OL
Note 6
Note 4, 8
L1
K1 is factory preset
as the RUN" relay.
L2
14
11
12
K1
X1
X2
Baldor
Digital
Soft–Start
K2
T1
T2
T3
Note 2
T2 T3
Note 7
* AC Motor
* Optional components not provided with control.
L3
Programmable
Input
24
21
22
115VAC
Note 1
Note 3
* Input
Contactor IC
S1
S0
L3
Alternate *
Fuse
Connection
*
OT
L2
T1
G
*
OT
Motor Thermostat Leads
115/230VAC
Note 5, 6
Notes:
1.
See “Protective Devices” described previously in this section.
2.
Motor Overload and/or Thermal protection is required by NEC.
3.
Use same gauge wire for Earth ground as is used for L1, L2
and L3.
4.
Metal conduit should be used. Connect conduits so the use of
a Reactor or RC Device does not interrupt EMI/RFI shielding.
5.
X1 and X2 control terminal power must be present or the logic
circuits will not work. Either 115VAC or 230VAC can be used.
Be sure the 115/230VAC switch (Control Voltage Selector
Switch) is set to the proper voltage before you apply power.
6.
The X1 and X2 control voltage input has different VA ratings
depending on enclosure size, see Table 2-3.
7.
Add appropriately rated protective device for AC relay
(snubber) or DC relay (diode).
8.
To protect the control, be sure to add MOV protection. Refer to
Appendix D for additional information.
See Recommended Tightening Torques in Table 2-4.
All soft–starters require a separate fused 2 wire, single phase connection at terminals X1
and X2. An external fuse is required and must be sized as described in Table 2-3.
Either 115VAC (98 – 126VAC) or 230VAC (196 – 253VAC) input may be used. The
control voltage selector switch allows simple selection of 115VAC or 230VAC input power.
Table 2-3 Control Supply
Size 2
Current Rating
(Amps)
to 23A
30A to 44A
59A to 146A
174A to 370A
Size 3, 4
500A to 1200A
Chassis Size
Size 1
Nominal Power Consumption
(VA)
8VA
10VA
12VA
18VA
8VA – Control card
140VA – separate fan supply
115V Fuse
230V Fuse
125mA
200mA
200mA
200mA
125mA
2A
63mA
100mA
100mA
100mA
63mA
1A
Motor Overload and Thermal Protection
NEC and local codes may require thermal motor overload protection devices be installed
rather than rely only on internal protection devices. Devices such as bi–metallic overload
relays may require special Soft–Start settings (such as during low voltage starting to
prevent heating). Use of electronic overload relays with this control is not recommended
because of the distorted current waveform. A motor with built in thermal cutoff switches
(TSTAT’s) is recommended.
2-6 Installation
MN850
In–Delta Connections
For Delta connected motors, the Soft–Start can be connected inside the delta windings.
This connection method is shown in Figure 2-2.
Figure 2-2 In–Delta Soft–Start Connections
L1
L2
L3
L1
Earth
Note 1
* Circuit
Breaker
Alternate *
Fuse
Connection
Note 2
L2
L3
Note 1
* Optional components not provided with control.
Note 3, 9
L1
L2
L3
X1
X2
Baldor
Digital
Soft–Start
T1
T2
T3
115/230VAC
In–Delta connections for correct motor rotation
Note 6, 7
T3
T1
T2
G
T4
* AC Motor
T5
Soft–Start
Terminal
Motor
Terminal
T1
T2
T3
T3
T1
T2
L1
L2
L3
T5
T6
T4
T6
Note 8
Notes:
1.
See “Protective Devices” described previously in this section.
2.
Use same gauge wire for Earth ground as is used for L1, L2 and L3.
3.
Metal conduit should be used. Connect conduits so the use of a Reactor or RC
Device does not interrupt EMI/RFI shielding.
4.
Derating factor for soft–start is 57%.
5.
Parameter P6– Firing Mode must be set to 1.
6.
X1 and X2 control terminal power must be present or the logic circuits will not work.
Either 115VAC or 230VAC can be used. Be sure the 115/230VAC switch (Control
Voltage Selector Switch) is set to the proper voltage before you apply power.
See Recommended Tightening
Torques in Table 2-4.
7.
The X1 and X2 control voltage input has different VA ratings depending on enclosure
size, see Table 2-3.
8.
For reversing operation, L1 and L2 should be switched. Reversing any two of the
three input phases will reverse the motor rotation.
9.
To protect the control, be sure to add MOV protection. Refer to Appendix D for
additional information.
Fan Connections – Size 3 and 4 only Size 1 and 2 controls do not have fan connections. For Size 3 controls make
the fan connections as shown in Figure 2-3.The Fan and Control voltages must be the
same (both must be 115VAC or both must be 230VAC). 150VA (minimum) required.
Figure 2-3 Fan Connections
115V Connections
X1
MN850
X2
230V Connections
(150VA minimum)
X1
X2
Installation 2-7
Wire Size and Protection Devices
Table 2-4 Control Wire Sizes and Tightening Torques
Control
Size
Terminal
Wire Gauge *
AWG
mm2
L1, L2, L3, T1, T2, T3
(M8 Stud for Ring connector)
1
Earth (Ground) Terminal
1/0
50
Terminal Torque
Lb–in
Nm
106
12
106
12
106
12
106
12
212
24
212
24
4.5
4.5
4.5
4.5
0.5
0.5
0.5
0.5
(M8 Stud for Ring connector)
L1, L2, L3, T1, T2, T3
(M8 Stud for Ring connector)
2
Earth (Ground) Terminal
(2)
250MCM
(2) 120
(M8 Stud for Ring connector)
L1, L2, L3, T1, T2, T3
** (Connector with two M10 holes on 30mm center)
Earth (Ground) Terminal
3, 4
(M10 Stud for Ring connector)
S0 and S1
X1 and X2
K1 (11, 12, 14)
K2 (21, 22, 24)
All
Busbar size:
45x20
60x10
80x10
14 – 22
0.5 – 2.5
14 – 22
0.5 – 2.5
14 – 22
0.5 – 2.5
14 – 22
0.5 – 2.5
* Use same gauge wire for Earth ground as is used for L1, L2 and L3.
** Use terminal #4–350kcmil,1 per phase (ILSCO Part No.LO–350–S, LO–600–S or LO–1000–S
or equivalent).
Table 2-5 NEC Wire Size and Protection Devices
Control Rating
Amps
Input Breaker
(Amps)
9
16
23
30
44
59
85
105
146
174
202
242
300
370
500
600
750
900
1100
1200
15
30
40
50
70
90
110
175
250
275
300
400
450
600
800
900
1200
1400
1600
1800
Input Fuse (Amps)
Fast Acting
Time Delay
30
20
50
30
70
40
90
60
150
80
200
110
250
150
350
200
450
275
600
300
600
350
750
450
900
600
1200
700
1500
900
1800
1100
2500
1400
3000
1600
2000
2000
Wire Gauge
AWG
12
12
10
8
8
6
4
2
2/0
3/0
4/0
250MCM
350MCM
500MCM
(2) 250MCM
(2) 350MCM
(2) 500MCM
(2) 700MCM
(3) 700MCM
(3) 700MCM
mm2
3.31
3.31
5.26
8.37
8.37
13.3
21.2
33.6
67.4
85.0
107.0
127.0
177.0
253.0
(2) 127.0
(2) 177.0
(2) 253.0
(2) 355.0
(3) 355.0
(3) 355.0
Note: All wire sizes are based on 75°C copper wire. Higher temperature smaller gauge wire may be used per NEC
and local codes. Recommended fuses/breakers are based on 40°C ambient, maximum continuous control
output current and no harmonic current.
2-8 Installation
MN850
Three Wire Control
Figure 2-4 Three Wire Control Connection
115 / 230VAC
Fuse
Note: Add appropriately rated protective
device for AC relay (snubber)
or DC relay (diode).
Neutral
Stop
Start
R1
IC
X1
X2
S1
S0
R1
IC
OT
OL
IC= Input Contactor Coil
OL= Thermal Overload Relay
OT= Motor Thermal Overload Relay
Baldor
Digital
Soft–Start
14
11
12
K1
24
21
22
K2
K1 is factory preset
as the RUN" relay.
* External hardware not provided with control.
See Recommended Tightening Torques in Table 2-4.
Two Wire Control
Figure 2-5 Two Wire Control Connection
115 / 230VAC
Fuse
Note: Add appropriately rated protective
device for AC relay (snubber)
or DC relay (diode).
Neutral
Choose Control Circuit
Off
On
R1
Control Circuit
Or
Hand
Off
X1
X2
R1
S1
S0
R1
Auto
IC
OT
OL
IC= Input Contactor Coil
OL= Thermal Overload Relay
OT= Motor Thermal Overload Relay
Baldor
Digital
Soft–Start
14
11
12
K1
24
21
22
K2
K1 is factory preset
as the RUN" relay.
* External hardware not provided with control.
See Recommended Tightening Torques in Table 2-4.
MN850
Installation 2-9
NEMA 12/4 Installation
When a NEMA12, NEMA4, NEMA4x OR IP65 enclosure is used, a separate Top of Ramp
Bypass (or shunt) contactor must be connected in parallel with the soft–start control. This
will allow a solid connection of the motor to the AC power lines and eliminate the heating
effect caused by the SCR’s. At the completion of the start ramp (when full start voltage is
obtained) a Bypass contactor is closed. This contactor is controlled by the “Top of Ramp”
relay K2. This ensures that bypass will only occur when motor voltage equals the AC line
voltage.
Figure 2-6 Top of Ramp (Bypass) Connection
115/230VAC
To AC Input
Fuse
To protect the control, be sure to add MOV protection.
Refer to Appendix D for additional information.
Neutral
X1
X2
BC
Note:
Add appropriately rated
protective device for AC
relay (snubber) or DC
relay (diode).
L1
S1
S0
14
11
12
K1
24
21
22
K2
* External hardware not provided with control.
L2
L3
Baldor
Digital
Soft–Start
* BC
Bypass
Contactor
K2 is factory preset
as the Top of Ramp" function.
T1
T2
T3
See Recommended Tightening Torques in Table 2-4.
To Motor
2-10 Installation
MN850
Reversing Contactor
For this mode, the Stop Time must be set to zero. Also, allow a minimum of 350 milli
seconds between the Forward and Reverse commands.
Figure 2-7 Motor Reversing Connection
To AC Input
Forward
Contacts
Reverse
Contacts
MI
To protect the control, be sure to add MOV protection.
Refer to Appendix D for additional information.
MI - Mechanical Interlock
115/230VAC
Fuse
Neutral
Forward
R
F
Reverse
R
L1
X1
X2
F
S1
S0
R
Note 1
F
14
11
12
K1
24
21
22
K2
* External hardware not provided with control.
L2
L3
Baldor
Digital
Soft–Start
K2 is factory preset
as the Top of Ramp" function.
T1
T2
Note 1: Add appropriately rated protective
device for AC relay (snubber)
or DC relay (diode).
T3
See Recommended Tightening Torques in Table 2-4.
MN850
Installation 2-11
Installation
1.
Remove cover. (See cover removal described previously in this section.)
2.
Mount the panel or enclosure to the mounting surface. The panel or enclosure
must be securely fastened to the mounting surface. Refer to the mounting
dimensions in Section 6 of this manual.
Shock Mounting
If the control will be subjected to levels of shock greater than 1G or vibration
greater than 0.5G at 10 to 60Hz, the control should be shock mounted.
3.
Ground the panel and control per NEC article 250 as well as state and local
codes.
4.
Use copper wire rated for at least 75°C. Refer to Tables 2-4 and 2-5 for wire
size recommendations.
5.
Connect the incoming AC power wires from the power disconnect and/or
protection devices to L1, L2 and L3 terminals. Tighten each terminal as
specified in Section 2 of this manual. To protect the control, be sure to add
MOV protection (refer to Appendix D for additional information).
6.
Connect 115VAC to the X1 and X2 terminals. This 115VAC input must be
fused. Refer to Table 2-3 for ratings.
7.
Be sure to set the 115/230VAC switch (Control Voltage Selector Switch) to the
115VAC position.
8.
* Connect earth ground to the “GND” of the control. Be sure to comply with local
codes.
9.
Connect the motor leads to terminals T1, T2, and T3.
10. * Connect motor ground wire to the “GND” of the control. Be sure to comply
with all applicable codes.
11. Connect the S0, S1, K1 and K2 control terminals as required for your
installation.
12. Verify the input line voltage is correct.
13. Verify the Control Voltage is correct and that the selector switch is correctly set.
14. Complete any optional wiring connections that may be needed for your
installation.
15. Install cover.
*
2-12 Installation
Grounding by using conduit or panel connection is not adequate. A separate
conductor of the proper size must be used as a ground conductor.
MN850
Section 3
Operation
Overview
The start–up procedure will help get your system up and running quickly and will allow
motor and control operation to be verified. This procedure assumes that the Control and
Motor are correctly installed (see Section 2 for procedures) and that you have a basic
understanding of the keypad programming & operation procedures.
1.
Read the Safety Notice and Precautions in section 1 of this manual.
2.
Mount the control.
3.
Be sure the cover is on and the keypad is plugged in but all power is OFF.
4.
Connect Three Phase AC power (L1, L2, L3).
5.
Connect 115VAC 1 phase power (X1, X2).
Note: Factory assembled combination and non–combination controllers and
controllers in ventilated NEMA 12 enclosures have an internal transformer
that provides 115VAC power to X1 and X2 terminals (pre–wired).
6.
Pre–Start Checklist
Connect the motor.
Check of electrical items.
CAUTION: After completing the installation but before you apply power, be
sure to check the following items.
1.
Verify the Three Phase AC line voltage at source matches control rating.
2.
Verify the X1, X2 Control Voltage at source is correct. An external fuse is
required and must be sized as described in Table 2-3.
3.
Verify the Control Voltage Selector Switch is correctly set.
4.
Inspect all connections for accuracy, workmanship and tightness as well as
compliance to codes.
5.
Verify control and motor are grounded to each other and the control is
connected to earth ground.
6.
Check all signal wiring for accuracy.
7.
Be certain all brake coils, contactors and relay coils have noise suppression.
This should be an R-C filter for AC coils and reverse polarity diodes for DC
coils. MOV type transient suppression is not adequate.
Check of Motors and Couplings
MN850
1.
Verify freedom of motion of motor shaft.
2.
Verify that the motor coupling is tight without backlash.
3.
Verify the holding brakes if any, are properly adjusted to fully release and set to
the desired torque value.
Operation 3-1
Start–Up Procedure
This procedure assumes that this is the first time the control and motor have been
started. The normal start–up procedure would be as follows:
1. Apply X1, X2 Control Voltage power (115VAC).
2. Apply three phase power. The display should show “Stopped & Ready”.
3. Press ENTER and the display should show “Applications”.
4. Press ENTER and the display should show “Settings”.
5. Press the UP or DOWN Arrows and select the desired type of motor load.
6. Press ENTER and the display should briefly display loading of parameters then
prompt for “Send to Store?”. Press ENTER to store values.
Note: Values must be saved to “Permanent Store” to be restored at power–up.
See “Changing the Power–up Settings” in this section.
7.
8.
Press “#” twice to exit programming.
The display should show “Stopped & Ready”.
Press “Start/Stop” to run the motor.
First Time Start–up (Apply X1, X2 115 volt power and become familiar with the control).
Apply X1, X2 Control Voltage power (115VAC). The backlit LCD display will illuminate
and display. The control is now ready for operation.
Description
Action
Apply Control Voltage
(115VAC)
Keypad Operation
Display
Comments
Keypad Display shows this
opening message.
Baldor Soft Start
Logo display for 2 seconds.
If no faults the display will show
this message.
Stopped & Ready
System Status mode.
On the control front panel is a keypad and display as shown in Figure 3-1.
Figure 3-1 Keypad Definition
Keypad
Switch
ENTER
Select store
#
exit/reset
Data
Entry
Program Menu
ENTER
Enters the
Program menu.
Position in the menu
structure goes forward
(down) one level. (e.g. from
Level 2 to Level 3).
#
No action
Position in the menu
Cancels any changes to the setting of
structure goes back (up) one a menu item. The display returns to
level. (e.g. from Level 1 to
the menu mode.
Level 0).
No action
Position in the menu
Increments a menu item that has an
structure goes back (up) one analog value. Or,
level.
Sets one selected bit to Bit=1 for a
menu item that requires a logical
selection.
No action
Position in the menu
structure goes back (up) one
level. (e.g. from Level 1 to
Level 0).
Baldor Soft Start
PARAMETER SETTING
Mode
System
Status
Accepts any changes to the setting of
a menu item. The new setting is
flashed on the display for 2 seconds
then returns to the menu mode.
up/increment
down/decrement
OPTIMISE
bit shift left
Display is a backlit 2 line x 16 character
LCD display (32 character display).
Note:
For keypad to be active,
keypad control must be selected.
OPTIMISE Selects or
deselects
optimizing, when
motor is running.
Start
Stop
3-2 Operation
0000 0000
Shifts left one bit position at
a time.
Starts or Stops the No action
motor.
Decrements a menu item that has an
analog value. Or,
Sets one selected bit to Bit=0 for a
menu item that requires a logical
selection.
Note: Optimise key is used as left
right shift key to scroll through the bit
map in parameter 18, 51, 52, 53, 54,
86, 95, 96.
No action
MN850
Operating Modes
System Status Mode
Description
During normal operation, the display shows the status
of operation.
Menu Mode
In the menu mode, a flashing cursor is displayed. Use
the ⇑ or ⇓ keys to scroll through the menu items. Use
the ENTER key to select a menu item or move to the
next level.
183 A
Shows that Optimized operation
is selected and the load current is
183 amperes.
Display
APPLICATIONS
BASIC
Comments
V represents blinking cursor.
At the menu mode, scroll to the desired parameter value you wish to change. Press
enter to view or change the data. (If a blinking cursor is not present, the data is read
only.)
Description
In the data entry mode, a flashing cursor is displayed.
Use the ⇑ or ⇓ keys to increase or decrease the value
of the parameter. Use the ENTER key to save the
data value. The display will flash one time if the value
is accepted. The display will flash two times if the
value is erroneous.
MN850
OPTIMIZE
CURRENT
Comments
At the power up display, press ENTER one time to go to the menu mode and display the
level 1 menu.
Description
Data Entry Mode
Display
Display
START PEDESTAL
20
PERCENT
Comments
V represents blinking cursor.
Operation 3-3
Menu Structure
Figure 3-2 Menu Structure Diagram
Level 0
Level 1
Level 2
Level 3
ENTER
ENTER
ENTER
ENTER
Stopped and ready
Applications
Auto features
Auto features
Basic
Basic
Advanced
Advanced
Permanent store
Permanent store
Password
Password
Inputs
Settings
Auto Jog (Off)
Auto Pedestal (Off)
Auto end start (Off)
Auto stop (Off)
Auto end stop (Off)
Auto bypass (On)
Auto 3MC (On)
Auto off (Off)
Stop smoothing (Off)
Starting (Keypad)
Start pedestal
Start time (5s)
Stop pedestal (10%)
Stop time (0s)
Current limit (3.5xle)
Power on Param
Protection
Save parameters
Power on parameters
Default parameters
Enter password
Change password
Outputs
Parameters
Trips
#
#
Settings
Default (keypad)
Small Pump
Large Pump
Conveyor
Low Inertia Fan
High Inertia Fan
Recip Compressor
Screw Compressor
Rotary Compressor
#
Full
Full + optimise(Preset)
Start + bypass
Phase loss only
Current
Optimise rate (5)
Kick start (Off)
Kick pedestal (75%)
Kick time (25cycles)
Dwell time (5s)
Low volts stop (On)
Contactor delay (160ms)
Trip sensitivity (1)
Station number (1)
Language (44)
Firing mode (0) *
Stop Smoothing (5)
Rated current (Ie) **
Low current (Off)
Low amps level (0.1xFLC)
Low amps time (50cycles)
C/L time out (On)
Current limit (3.5xIe)
Limit time out (30s)
Shearpin (On)
Shearpin level (3.125xIe)
Shearpin time (100cycles)
Overload level (1.1xIe)
Overload delay (140)
#
* The “Firing Mode” must be set to 1 for the In–Delta configuration.
** The “Rated Current” setting is for reference only and is not user adjustable.
3-4 Operation
MN850
Menu Navigation Examples
Menu Navigation
Action
Apply Control Voltage
(115VAC)
This example shows how to go to the Inputs menu and map an input parameter.
Description
Display
Comments
Keypad Display shows this
opening message.
Baldor Soft Start
Logo display for 2 seconds.
If no faults the display will show
this message.
Stopped & Ready
System Status mode.
Press ENTER key
APPLICATIONS
AUTO FEATURES
Press ENTER to access menu
mode.
Press ⇓ key
Scroll to the AUTO FEATURES
menu.
AUTO FEATURES
BASIC
Press ENTER to access Basic
level 2 parameters if desired.
Press ⇓ key
Scroll to the BASIC menu.
BASIC
ADVANCED
Press ⇓ key
Scroll to the ADVANCED menu.
ADVANCED
PERMANENT STORE
Press ⇓ key
Scroll to the PERMANENT
STORE menu.
PERMANENT STORE
PASSWORD
Press ENTER to access
Advanced level 2 parameters if
desired.
Press ENTER to access
Advanced level 2 parameters if
desired.
Press ENTER to access
Password parameter if desired.
Press ⇓ key
Scroll to the PASSWORD menu.
PASSWORD
INPUTS
Press ENTER to access
Password parameter if desired.
Press ⇓ key
Scroll to the INPUTS menu.
INPUTS
OUTPUTS
Press ENTER to access
Password parameter if desired.
Press ENTER key
Enter level 2 of inputs menu.
DIGITAL I/P 1
Press ENTER key
Enter level 3 of inputs menu.
MAP TO
52 PARAMETER
Press ⇓ key
Scroll to the 52 Parameter menu.
52 PARAMETER
BIT NUMBER
Press ⇓ key
Scroll to the Bit Number menu.
BIT NUMBER
POLARITY
Press ENTER key
Enter the Bit Number menu.
BIT NUMBER
01000000 MASK
Press OPTIMISE key
Allows you to change the value of
the first bit.
BIT NUMBER
01000000 MASK
Press OPTIMISE key
Allows you to change the value of
the second bit.
BIT NUMBER
01000000 MASK
Press OPTIMISE key
Allows you to change the value of
the third bit.
BIT NUMBER
01000000 MASK
Press ⇑ key
Allows you to change the value of
the third bit.
BIT NUMBER
01100000 MASK
Press ENTER key
Accept the change.
BIT NUMBER
01100000 MASK
Press # key several
times
Press the # key numerous times
to return to the system status
mode.
MN850
Stopped & Ready
System Status mode.
Operation 3-5
Changing the Power–up Settings & Select Keypad Control When the Control Supply (115VAC) power is first
applied, the control loads the parameter settings into working memory. You may change
any of these parameters and operate a motor with the changed settings. However, if
these values are not saved they will be lost the next time power is removed. You can
save the new values as power–up values so they will be loaded the next time Control
Supply power is turned off and turned back on.
Procedure:
Turn Control Supply power on. Use the menu’s and change any parameters to the new
values as desired. When all changes are made, operate the motor to ensure that all
values are as desired. Then, stop the control and perform the following:
Action
Description
Press ENTER key
Display
APPLICATIONS
AUTO FEATURES
Press ⇓ key several
times
Scroll to the Permanent Store
menu.
PERMANENT STORE
PASSWORD
Press ENTER key
Enter level 2 of Permanent Store
menu.
SAVE PARAM
POWER ON PARAM
Press ⇓ key several
times
Scroll to the Default Param menu.
DEFAULT PARAM
Press ENTER key
Stores the new parameter values
in permanent memory. Thew
display will flash one time to show
parameters were successfully
saved.
DEFAULT PARAM
Press # key several
times
Scroll to the Basic menu.
APPLICATIONS
AUTO FEATURES
Comments
Press ENTER to access menu
mode.
Next time power is applied, these
new values will be loaded and
used for motor operation.
Select Keypad Starting and Keypad Control
Action
Description
Press ENTER key
Display
APPLICATIONS
AUTO FEATURES
Press ⇓ key
Scroll to the Basic menu.
BASIC
ADVANCED
Press ENTER key
Enter level 2 of Basic menu.
STARTING (KEYPAD)
START PEDESTAL
Press ENTER key
Accept the change to keypad
starting.
STARTING (KEYPAD)
START PEDESTAL
Press # key several
times
Scroll to the Basic menu.
APPLICATIONS
AUTO FEATURES
3-6 Operation
Comments
Press ENTER to access menu
mode.
MN850
Motor Starting Definitions
Term
Definition
Starting
Selectable in Basic Menu as either Keypad or Remote starting method.
Voltage Pedestal
Initial voltage applied to motor after the 3 cycle power–up ramp.
Programmed as parameter 11 or as Start Pedestal in Basic Menu.
Kick Pedestal
For traction or “frozen” loads, this boost pulse of higher voltage helps the load to start
moving. Kick Start is in the Advanced menu. Kick Pedestal is parameter 13 or as Kick
Pedestal in Advanced menu.
Kick Time
Number of cycles duration the kick pedestal voltage is applied. Programmed as parameter
14 or as Kick Time in Advanced menu.
Start Time
Number of seconds after the 3 cycle power–up to full motor voltage. Programmed as
parameter 12 or as Start Time in Basic Menu.
Dwell Time
Number of seconds that full voltage is applied to the motor before optimizing begins (if
optimizing is selected). Programmed as parameter 15 or as Dwell Time in Advanced menu.
Optimizing
Process of detecting underload condition and reducing the RMS voltage to the motor. This
eliminates overflux condition of the motor windings to reduce saturation and results in
substantial power savings (up to 2% efficiency increase). Optimizing is selected by the
keypad or as parameter 7 or as Protection parameter in Basic Menu.
Optimizing Rate
A numerical value that represents the rate at which the motor voltage is reduced during
optimizing. When this number is large, improves efficiency on stable loads. A lower
number for unstable loads will reduce speed variations. Programmed as parameter P19.
Contactor Delay
A delay is required when an input contactor is energized by the soft–start “Run” relay. This
delay allows bouncing contactor armature to settle during the “Closed” position.
Programmed as parameter 71 or as Contactor Delay in Advanced menu.
3 Cycle Power–up
This non adjustable time is to allow voltage build up from zero to the initial pedestal. It is
intended to reduce current inrush and allows for shorted SCR detection. This delay may be
turned off to start a motor even with one shorted SCR or to use high inertia loads on class C
or D motors. Programmed as the “Auto 3MC” parameter in Auto Features menu.
Figure 3-3 Motor Starting Key Terms
Motor
Voltage
Optimise Rate
Full Voltage
Kick Pedestal
Optimizing
Auto Pedestal
Voltage Pedestal
Kick
Time
3 Cycle
Power–up
Contactor
Delay
MN850
Start Time
Time
Dwell Time
Run
Operation 3-7
Keypad Starting and Running the Motor with Factory Settings
Action
Apply Control Voltage
(115VAC)
Description
Display
Comments
Keypad Display shows this
opening message.
Baldor Soft Start
Logo display for 2 seconds.
If no faults the display will show
this message.
Stopped & Ready
System Status mode.
Press ENTER key
APPLICATIONS
AUTO FEATURES
Press ENTER key
Access Level 1 Application Menu.
Settings
Default (Keypad)
Press ⇓ key two times
Scroll to the correct application.
Small Pump
Large Pump
Press ENTER key
Select the application.
Large Pump
Conveyor
Press ENTER key
Choose set of parameters for the
application.
Send to Store
’#’=no Enter=Yes
Press ENTER key
Scroll to the PASSWORD menu.
Storing
Press # key twice
Press # key two times to exit
programming.
Large Pump
Conveyor
Press Start/Stop key
Displays motor starting current
and full voltage and current.
Starting
Current
8A
Full volts
Current
8A
3-8 Operation
Large pump is selected in this
example.
MN850
Keypad Starting and Running the Motor in Optimise Mode
Action
Apply Control Voltage
(115VAC)
Description
Display
Comments
Keypad Display shows this
opening message.
Baldor Soft Start
Logo display for 2 seconds.
If no faults the display will show
this message.
Stopped & Ready
System Status mode.
Press ENTER key
APPLICATIONS
AUTO FEATURES
Press ENTER key
Access Level 1 Application Menu.
Settings
Default (Keypad)
Press ⇓ key two times
Scroll to the correct application.
Small Pump
Large Pump
Press ENTER key
Select the application.
Large Pump
Conveyor
Press ENTER key
Choose set of parameters for the
application.
Send to Store
’#’=no Enter=Yes
Press ENTER key
Scroll to the PASSWORD menu.
Storing
Press # key twice
Press # key two times to exit
programming.
Large Pump
Conveyor
Press Start/Stop key
Displays motor starting current
and full voltage and current.
Starting
Current
8A
Full volts
Current
8A
Optimising
Current
4A
Press OPTIMISE key
Large pump is selected in this
example.
Ready for Remote Start/Stop.
Baldor Digital Soft–Start offers three modes of protection during operation:
1.
Full protection with full voltage after top of ramp.
2.
Full optimize protection with energy optimizing by reduced voltage at lower
loads.
3.
Start + Bypass protection (during start only). No soft–start protection is
provided when during bypass (when soft–start is shorted by the bypass
contactor).
Remote Start and Running the Motor
When Remote Starting is selected, the keypad Start/Stop pushbutton is not active.
Action
Apply 115VAC at the
input terminals S0 and
S1.
MN850
Description
Display
Comments
Input 1 is Start/Stop input when
Remote Starting is selected.
(P52 Bit 16 set to terminal.)
Operation 3-9
Motor Stopping Definitions
Term
Definition
Stop Pedestal Voltage
Stop Pedestal Voltage is the percentage of line voltage applied to the motor after a stop
command. Programmed as parameter 16 or as Stop Pedestal in Basic Menu.
Stop Time
Time in seconds after a stop command to ramp down the motor voltage (Stop Time 1 or 2)
Stop Time 1 with low voltage ramp active. Stop Time 2 with no low voltage ramp.
Programmed as parameter 17 or as Stop Time in Basic Menu.
Stop Smoothing
Adjustable voltage ramp for smooth deceleration. Motor current is monitored and stop
smoothing will continue until the Start Pedestal value is reached.
Programmed as parameter
Run Voltage
Full voltage or Running Voltage
Start Pedestal Voltage
Start Pedestal Voltage – end of stop smoothing and beginning of low voltage ramp to zero
volts (if low voltage ramp is active). Programmed as parameter 11 or as Start Pedestal in
Basic Menu.
Figure 3-4 Motor Stopping Key Terms
Motor
Voltage
Run
Voltage
Stop
Smoothing Effect
Full Voltage
Ideal
Stop Pedestal
Actual
Stop Smoothing
End of Stop Smoothing
Stop Pedestal
Voltage
Start Pedestal
Voltage
Low Voltage Ramp
Stop
Time 2
Time
Stop Time 1
Stopping the Motor
When Remote Starting is selected, the keypad Start/Stop pushbutton is not active.
Action
Press Start/Stop key
(Keypad Stop)
Remove the 115VAC
from S0 and S1.
(Remote Stop)
3-10 Operation
Description
Displays motor starting current
and full voltage and current.
Display
Stopping
Current
Stopping
Current
Comments
Begins the Stop operation
8A
Begins the Stop operation
8A
MN850
Section 4
Parameter Index
Menu Descriptions
Basic Menu
Block Title
Parameter
Description
Basic
Starting
Keypad – Allows motor starting and stopping by pressing Start/Stop key on keypad.
Remote – Allows motor starting and stopping by applying or removing 115VAC at
terminals S0 and S1 of the control board.
Start Pedestal
Start Pedestal Voltage – end of stop smoothing and beginning of low voltage ramp to
zero volts (if low voltage ramp is active).
Start Time
Number of seconds after the 3 cycle power–up to full motor voltage.
Stop Pedestal
Stop Pedestal Voltage is the percentage of line voltage applied to the motor after a stop
command.
Stop Time
Time in seconds after a stop command to ramp down the motor voltage (Stop Time 1 or
2). Stop Time 1 with low voltage ramp active. Stop Time 2 with no low voltage ramp.
Current Limit
Percentage of running current (P24 and P25). Adjustable from 100 – 800%.
Power on
Parameter
Resets all parameter values to the values at the most recent power up. Display blinks
twice to confirm reset is complete.
Protection
Full – provides shorted SCR protection during start and run, single phase protection
during start, optimizing not selected.
Full + Optimise – provides shorted SCR protection during start and run, single phase
protection during start, optimizing is selected.
Start + Bypass – provides shorted SCR protection during start, single phase protection
during start, optimizing not selected and no single phase protection during run.
This mode must be used with top of ramp bypass contactor.
Phase Loss only – shorted SCR protection during start and run is disabled, single phase
protection during start, optimizing not selected.
This mode is recommended when input power noise frequently causes nuisance trips.
Applications Menu
Block Title
Parameter
Description
Applications
Settings
Display starting method, either Keypad or Remote. Also displays operating mode
(Optimizing or Full Voltage).
Default (Keypad)
Sets starting and stopping mode to keypad, resets control and restores all parameters to
factory preset values.
Small Pump
Uses preset parameter values for typical small centrifugal pump. (P11, P12, P16, P17,
P30 and P31 values).
Large Pump
Uses preset parameter values for typical large centrifugal pump. (P11, P12, P16, P17,
P30 and P31 values).
Conveyor
Uses preset parameter values for typical conveyor. (P11, P12, P16, P17, P30 and P31
values).
Low Inertia Fan
Uses preset parameter values for Low Inertia Fan. (P11, P12, P16, P17, P30 and P31
values).
High Inertia Fan
Uses preset parameter values for High Inertia Fan. (P11, P12, P16, P17, P30 and P31
values).
Reciprocating
Compressor
Uses preset parameter values for Reciprocating Compressor. (P11, P12, P16, P17, P30
and P31 values).
Screw Compressor
Uses preset parameter values for Screw Compressor. (P11, P12, P16, P17, P30 and
P31 values).
Rotary Compressor Uses preset parameter values for Rotary Compressor. (P11, P12, P16, P17, P30 and
P31 values).
MN850
Parameter Index 4-1
Applications Menu Continued
Name
Start Pedestal %
Start Time
Current Limit Level
Small Pump
10 %
5 S
3.5 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
Large Pump
10 %
7 S
3.5 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
Low Inertia Fan
30 %
15 S
3.5 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
High Inertia Fan
40 %
3 S
2.8125 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto Bypass
Auto End Start
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
Conveyor
10 %
10 S
3.5 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
Reciprocating Compressor
45 %
Stop Pedestal %
3 S
Stop Time
3.5 *FLC
Current Limit Time
Optimise Rate
15
Auto Pedestal
Auto Bypass
Auto End Start
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
4-2 Parameter Index
10
30
25
%
S
S
Auto Jog
Auto Stop
Auto End Stop
10
45
25
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
0
30
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
0
60
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
7
30
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
0
25
Name
Start Pedestal %
Start Time
Current Limit Level
Screw Compressor
40 %
7 S
7.8125 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
Rotary Compressor
35 %
7 S
3.5 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
Crusher
40 %
3 S
3.5 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
2.8125
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
Grinder
40
3
2.8125
%
S
*FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto Bypass
Auto End Start
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
Name
Start Pedestal %
Start Time
Current Limit Level
High Torque Start
60 %
3 S
4.375 *FLC
Stop Pedestal %
Stop Time
Current Limit Time
Optimise Rate
Auto Pedestal
Auto End Start
Auto Bypass
Auto 3MC
Low Voltage SoftStop
Soft Stop Smoothing
0
0
25
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
0
25
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
0
60
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
0
60
%
S
S
Auto Jog
Auto Stop
Auto End Stop
0
0
12
%
S
S
Auto Jog
Auto Stop
Auto End Stop
%
S
S
Auto Jog
Auto Stop
Auto End Stop
MN850
Advanced Menu
Block Title
Parameter
Description
Advanced
Current
Rated Current – (View Only) this value is the continuous current rating of the control.
Low Current – If on, activates low current trip protection. Useful to detect a low current
condition (broken belt, coupling, pump etc.) on driven equipment.
Low Current Level – The value of the low current trip detection. Value can be 0 to 100%
of the Rated Current parameter value. Parameter 28.
Low Current Time – The number of power cycles the motor current is allowed to remain
below the low current level before a low current trip occurs. Value can be 5 to 255
cycles. Parameter 29.
C/L Time Out – If on, allows current limit time out trip (active).
Current Limit – The value of the current limit trip detection. Value can be 1 to 7.9 times
the Rated Current parameter value. Parameter 30.
Limit Time Out – The number of seconds
Value can be 0 to 255 seconds. Parameter 31.
Shearpin – If on, Shearpin protection is active. Useful to detect a high current condition
(such as a jammed conveyor or press) on driven equipment.
Shearpin Level – The value of the high current Shearpin trip detection. Value can be 1 to
5 times the Rated Current parameter value. Parameter 32.
Shearpin Time – The number of power cycles the motor current is allowed to remain
above the low shearpin level before a Shearpin trip occurs. Value can be
cycles. Parameter 33.
Overload Level – Provides overload protection for SCR’s. (Not for motor thermal
overload). The value of the overload current trip detection. Value can be 0.6 to 2
times the Rated Current parameter value. Parameter 34.
Overload Delay – A numerical value that represents the time and current characteristics
for overload integration. Value can be 10 to 140. Parameter 35.
Note: For applications that have frequent Start/Stop sequences, it is necessary to
maintain 115VAC at terminals X1 and X2. Removing 115VAC from these
terminals resets the overload delay integration to 140.
Overload Set Point
Seconds
to Trip
Delay = 140
Delay = 80
Delay =30
Delay = 10
Overload Level (Motor Current x N)
MN850
Optimise Rate
A numerical value that represents the rate at which the motor voltage is reduced during
optimizing. When this number is large, improves efficiency on stable loads. A lower
number for unstable loads will reduce speed variations. Value can be 4 to 30.
Parameter 19.
Kick Start
If on, Kick Start feature is active.
Kick Pedestal
For traction or “frozen” loads, this boost pulse of higher voltage helps the load to start
moving. Value can be 60% to 90% of line voltage. Parameter 13.
Kick Time
Number of cycles duration the kick pedestal voltage is applied. Value can be 10 to 40.
Parameter 14.
Dwell Time
Number of seconds that full voltage is applied to the motor before optimizing begins (if
optimizing is selected). Value can be 1 to 255. Parameter 15.
Low Volts Stop
Allows decel to zero volts (not just to the level of the start pedestal). (Sometimes helpful
for unstable loads or regeneration).
Parameter Index 4-3
Advanced Menu Continued
Block Title
Parameter
Description
Advanced
Contactor Delay
A delay is required when an input contactor is energized by the soft–start “Run” relay.
This delay allows bouncing contactor armature to settle during the “Closed” position.
Value can be 20 to 800 milliseconds. Parameter 71.
Trip Sensitivity
A numerical value that sets the sensitivity level for all trips. A larger number provides
slower response to a trip. Value can be 1 to 15. Parameter 72.
Station Number
Reserved for future use.
Language
English (44) is preset. Value can be 1 to 255. Parameter 2.
Firing Mode
Sets the SCR firing mode to one of the following: (Value can be 0 to 3. Parameter 7.)
0 – Normal, 3 phase induction motor, Soft–Start conducting line current.
1 – Induction motor (Delta), Soft–Start conducting phase current.
2 – Closed loop phase control for electrical loads other than motors.
Current sensing is active but current protection is disabled.
3 – Open loop phase control for electrical loads other than motors.
Current sensing is disabled and current protection is disabled.
Note: Modes 2 and 3 are not suitable for motor loads and may damage motor and
control. These modes are suitable for electrical loads such as lighting or
resistive heaters.
Stop Smoothing
Adjustable voltage ramp for smooth deceleration. Motor current is monitored and stop
smoothing will continue until the Start Pedestal value is reached. Value can be 1 to
255. Parameter 122.
Auto Features Menu
Block Title
Parameter
Description
Auto Features
Settings
Display starting method, either Keypad or Remote. Also displays operating mode
(Optimizing or Full Voltage).
Auto Jog
If on, and Stop is commanded within 0.5 seconds of a start command the control will
change to jog mode. In jog mode, the decel ramp is changed to 0 seconds.
Repeatedly pushing the Start/Stop button will cause the motor to move slightly in the
same direction.
Auto Pedestal
If on, will automatically increase the voltage pedestal to start motor rotation.
Auto End Start
If on and motor reaches full speed during ramp up, the start ramp will be terminated and
full voltage will be applied to the motor.
Auto Stop
If on, automatically activates stop smoothing if required by the load during stop for
smooth deceleration of the load.
Auto End Stop
If on, detects a stalled or stopped motor and terminates ramp down (turns SCR’s off)
during stop.
Auto Bypass
If on, control detects the bypass contactor closing and automatically disables shorted
SCR detection (activates shorted SCR detection when contactor opens).
Auto 3MC
If on, reduces inrush current by allowing the motor voltage to build up from zero to the
set voltage pedestal over 2 to 3 cycles. On “Sticky” or “Traction” type loads, this
mode allows dynamic boost and stall sensing to start load.
Auto Off
Off – No effect.
On – changes the setting of all “Auto” parameters. If on, the parameter turns off etc.
Stop Smoothing
If on, allows motor deceleration smoothing (see Stop Smoothing Rate, Advanced menu).
4-4 Parameter Index
MN850
Permanent Store Menu
Block Title
Parameter
Description
Permanent Store
Save Parameters
Saves all parameter values and overwrites previously saved values.
Power on
Parameters
Restores all parameter values to the values that were last saved (last power up cycle).
All parameter values changes since last power up are overwritten. Display blinks
twice to confirm reset is complete.
Default Parameters Restores all parameter values to the factory settings. All parameter values are
overwritten. Display blinks twice to confirm reset is complete.
Password Menu
Block Title
Parameter
Description
Password
Enter Password
If a password is set, it prevents unauthorized users from changing any parameter
values. Value can be 0 to 255 (0=no password). If the correct password is entered,
all parameters are unlocked. Parameter 5.
Change Password
If the parameters are unlocked, a new password can be set using this option. Value can
be 0 to 255 (0=no password). Parameter 5.
Note: Remember your password. Removing power etc. will not clear the
password. When a password is set, use Enter Password to unlock
the parameters.
Inputs Menu
Block Title
Parameter
Description
Inputs
Digital i/p1
Input 1 is available at J10, terminals S1 (hot) and S0 (neutral). May be set as follows:
Map to – Value can be parameter 0 – 112. Parameter 65.
Bit number – Press “Optimise” to shift one position to the left. Press “⇑” to change that
character to a logic 1. Press “⇓” to change that character to a logic 0.
The value is stored in Parameter 66.
Polarity – Value of each of the 8 I/O bits can be Positive or Inverse Logic. The value is
stored in Parameter 54.
Digital i/p2
Reserved for future use.
Digital i/p3
Reserved for future use.
Temperature i/p
Reserved for future use.
4–20ma i/p
Reserved for future use.
DC i/p
Reserved for future use.
MN850
Parameter Index 4-5
Outputs Menu
The internal LED, four digital outputs and two analog outputs can be individually defined
as desired. Each digital output can be assigned positive or inverse logic.
Block Title
Parameter
Description
Outputs
LED
Available only on size 2 and 3 controls, this Red LED can represent a variety of status
conditions. The LED is located on the control board.
K1
Relay output with Form C (1 N.O. and 1 N.C.) single pole, double throw contacts.
Contacts are rated for 10Amp @ 250VAC.
Parameter 57 contains the parameter number of the status parameter assigned to K1.
Parameter 58 contains the bit location for the K1 output.
Parameter 54 contains the polarity value for the K1 output.
K2
Relay output with Form C (1 N.O. and 1 N.C.) single pole, double throw contacts.
Contacts are rated for 10Amp @ 250VAC.
Parameter 59 contains the parameter number of the status parameter assigned to K1.
Parameter 60 contains the bit location for the K1 output.
Parameter 54 contains the polarity value for the K1 output.
K3
Available with optional I/O expansion board. Refer to MN851 for information.
K4
Available with optional I/O expansion board. Refer to MN851 for information.
Analog o/p1
Available with optional I/O expansion board. Refer to MN851 for information.
Analog o/p2
Available with optional I/O expansion board. Refer to MN851 for information.
Voltage o/p
Available with optional I/O expansion board. Refer to MN851 for information.
Parameters Menu
Allows quick access to parameter values. Useful to view status or change a value of any
programmable parameter. Refer to Appendix B for parameter numbers and values.
Block Title
Parameter
Description
Parameters
P1 – P20
Entry point for viewing or programming parameters P1 – P20.
P21 – P40
Entry point for viewing or programming parameters P21 – P40.
P41 – P60
Entry point for viewing or programming parameters P41 – P60.
P61 – P80
Entry point for viewing or programming parameters P61 – P80.
P81 – P100
Entry point for viewing or programming parameters P81 – P100.
P101 – P120
Entry point for viewing or programming parameters P101 – P120.
P121 – P125
Entry point for viewing or programming parameters P121 – P125.
Trips Menu
This menu is used to view the last five fault trip conditions. Additional information about
fault trips may be found in the troubleshooting section of this manual.
Block Title
Parameter
Description
Trips
1–16 External Trip
Use the “⇑” and “⇓” keys to scroll through the fault trip list. In this example,
1 = the most recent trip (5 would indicate oldest).
16 = the code for the fault trip.
External Trip = the text message for the fault trip.
4-6 Parameter Index
MN850
Mapping to an Output Relay Most status values are stored in memory as status words.
The following is a list of these status words:
Parameter
Description
(128)
10000000
(64)
01000000
(32)
00100000
(16)
00010000
(8)
00001000
(4)
00000100
(2)
00000010
(1)
00000001
8
Status 1
Stopping
Energy
Saving
Full
Conduction
Dwell
Top of
Ramp
Current
Limit
Starting
Stopped
9
Status 2
4-20mA level
>P46
DC I/p level
>P48
Inhibit Start
Noise on
Power
Forced
Override
Stall
Overload
Integrating
Alarm
10
Status 3
Red LED
(Not Used)
Input 3
Input 2
Input 1
Relay K4
Relay K3
Relay K2
Relay K1
51
User Flag 1
(for first Param. set)
Remote
Starting
Not Used
Thermistor
Selector
Low
Current
Selector
Shearpin
Selector
Overload
Selector
Current
Limit
Timeout
Kickstart
Selector
52
User Flag 2
(for first Param. set)
Zero Start
Time
Second
Parameter
Set
Main
Contactor
Remote
Start/Stop
Keypad
Start/Stop
Not Global
Enable 2
Not Global
Enable 1
Low
Voltage
Soft–Stop
53
User Flag 3
(for first Param. set)
Auto
Pedestal
Auto End
Start
Auto Stop
Auto End
Stop
Inverted
Control
Input
User
Current
Limit
User Flag 2
Polarity
User Flag 1
Polarity
54
I/O Polarity
Red LED
Polarity
(Unused)
Input 3
Input 2
Input 1
Relay K4
Relay K3
Relay K2
Relay K1
86
Auto Config 2
Auto
Pedestal
Auto
Endstart
Auto Stop
Auto
Endstop
Auto Jog
Auto
Bypass
Auto 3MC
(Unused)
95
User Flag 1
(for 2nd Param. set)
Remote
Starting
Not Used
Thermistor
Selector
Low
Current
Selector
Shearpin
Selector
Overload
Selector
Current
Limit
Timeout
Kickstart
Selector
96
User Flag 2
(for 2nd Param. set)
Zero Start
Time
Second
Parameter
Set
Main
Contactor
Remote
Start/Stop
Keypad
Start/Stop
Not Global
Enable 2
Not Global
Enable 1
Low
Voltage
Soft–Stop
112
Status 4
Thermal
Switch
Overload
Timeout
Thermistor
Under
Current
Shearpin
RYB Phase
Sequence
60Hz
Each parameter is an 8 bit word and is used as a bit mask. Any bit of each word can be
assigned to an output relay (K1, K2, K3 or K4).
MN850
Parameter Index 4-7
Parameter Descriptions
Title
Parameter
Version 5MC (4/2/01)
Password
Advanced
P#
P0
P1
P2
P3
P4
P5
P6
Parameter
Dummy Parameter
Station Number
Country
Software Type
Software Version
Password Value
Firing Mode
Basic
P7
Protection Mode
Parameters
P8
Status 1
P9
Status 2
P10
Status 3
Basic
P11
Start Pedestal
Advanced
P12
P13
P14
Start Time
Kick Pedestal
Kick Time
Auto Features
P15
P16
P17
P18
Dwell Time
Stop Pedestal
Stop Time
Auto Config
Advanced
P19
Optimise Rate
Basic
4-8 Parameter Index
Description
Map unused bits, parameters etc.
Unused
Determines the language used by the display. 44=English.
Manufacturers product code for the Soft-Start software.
Version of the software.
Allows you to set and enter a password.
0= Normal motor (outside delta or star)
1= Delta (inside delta, no optimization)
2= Closed loop phase control
3= Open loop phase control
Determines the fault protection method.
0=
Input phase loss detection only.
64= Full protection with full volts after top of ramp.
128= Full protection during start then bypass (no protection)
192= Full protection + Optimization
Definition (Preset Value, all = 0)
Bit0= Stopped (1=Start/stop signal inactive, SCR's Off, Main contactor open).
Bit1= Starting (1= Starter is in Start Ramp).
Bit2= Current Limit (1=Motor current has reached limit and is being held).
Bit3= Top of Ramp (Full volts) (1=start ramp and current limit is complete).
Bit4= Dwell (1=the time at the end of the start ramp when the motor is
held at full volts before optimizing to stabilize the load).
Bit5= Full Conduction- (1= thyristors in continuous conduction).
Bit6= Energy Saving (1=Motor pf is monitored and volts are adjusted to optimum)
Bit7= Stopping (1=the stop ramp is active).
Definition (Preset Value, all = 0)
Bit0= Alarm (1=fault is detected and a trip has occurred)
Bit1= Overload Integrating (1=overcurrent is detected and is integrating)
Bit2= Stall (1=a stall condition is detected, motor speed decreasing).
Bit3= Forced Override (1= Optimizing not available even if selected because
motor current>80%FLA).
Bit4= Noise (1=Noise on AC input power mains is detected).
Bit5= Inhibit Start (1=Start is inhibited for a period to maintain duty cycle).
Bit6= DC I/P level reached (1= DC > P48).
Bit7= 4-20mA I/P level reached (1= 4-20mA > P46).
Definition (Preset Value, all = 0)
Bit0= K1 (1= K1 Active).
Bit1= K2 (1= K2 Active).
Bit2= K3 (1= K3 Active).
Bit3= K4 (1= K4 Active).
Bit4= Starter I/P 1 (1= Control Input1 is high).
Bit5= Starter I/P 2 (1= Control Input2 is high).
Bit6= Starter I/P 3 (1= Control Input3 is high).
Bit7= Red LED status (unused)
Sets the voltage level for the Start of Voltage Ramp". Must be sufficient to allow
motor to generate a breakaway torque.
Sets the time allowed for motor voltage to equal line voltage.
Sets the voltage level at the start of the kickstart operation.
Sets the number of cycles that the P13 voltage is applied. Note that for
60 Hz, 40 cycles = 667ms. For 50 Hz, 40 cycles = 800ms.
Sets the dwell time allowed after top of ramp is reached.
Sets the drop in motor voltage for the Stop Voltage Ramp" operation.
Sets the ramp down time for motor stopping.
Auto configuration flags to use with the first parameter set.
Definition (Preset Value)
Bit0= Unused
Bit1= Auto 3MC (1, Auto remove low volt. ramp for high start pedestal).
Bit2= Auto Bypass (1, Enable Automatic Bypass Contactor detection).
Bit3= Auto Jog (0, Disable auto jog detect. If 1, a stop request within .5 sec
of a start request is forced to 0 stop time).
Bit4= Auto Endstop (0, Do not detect stalled motor at softstop).
Bit5= Auto Stop (0, Do not detect variations in pf during stop smooth stall).
Bit6= Auto Endstart (0, Do not detect full speed at start and adjust start ramp).
Bit7= Auto Pedestal (0, Do not detect rotation at start and adjust pedestal).
Sets the optimizing response rate. This parameter helps to stabilize small slip speed
motors with low inertia loads. (4=fastest optimizing rate).
MN850
Title
Parameters
P#
P20
Parameter
Reference PF (Power Factor)
Description
The calculated power factor to optimize the control loop.
P21
Present PF (Power Factor)
The present power factor of the motor (load).
P22
Delay Angle (SCR OFF time)
The period (in degrees) that the thyristors are in the OFF state.
P23
Maximum Optimizing Delay
Sets the maximum delay angle (max degrees that the thyristors are
OFF) used during the optimizing mode.
P24
Rated Current (High Byte –Hundreds)
The current rating of the soft–start set by manufacturer.
P25
Rated Current (Low Byte – Units)
The current rating of the soft–start set by manufacturer.
P26
Running Current Amps
(RatedCurrent) x (7.96875)
32
Peak Start Current (measured at last start)
The load current. (Always shown as phase current).
P28
Low Current Level (undercurrent trip)
(scaling = 0.03125)
Sets the under current trip level. (The low current level flag is
updated even if the low current trip is disabled).
P29
Low Current Time (delay before trip)
The number of cycles allowed for a low current level condition (P28)
to exist before tripping. For 60 Hz, 40 cycles = 667ms.
For 50 Hz, 40 cycles = 800ms.
P30
P31
Current Limit Level (scaling = 0.03125)
(RatedCurrent) x (7.96875)
32
Current Limit Time (delay before trip)
P32
Shearpin Level (overcurrent trip)
Sets the level that the start ramp is held. (The start ramp is only held
if the P30 value is reached. The current decreases as motor speed
increases allowing the ramp to continue).
The time allowed for start current to equal P30 value before tripping.
Note that for 60 Hz, 40 cycles = 667ms.
For 50 Hz, 40 cycles = 800ms.
Sets the over current trip level. Shearpin operation begins after
start–up is complete.
P33
Shearpin Time (delay before trip)
P34
Overload Level (SCR protection)
P35
Overload Delay (delay before trip)
The time allowed for an overload condition before tripping. For 60
Hz, 60 cycles = 1second. For 50 Hz, 50 cycles = 1second.
P36
% Overload (status only)
The integration of the Current–Time product represented as a % of a
value that was preset by the manufacturer.
P37
Chassis Temp
The heatsink temperature. When the temperature exceeds a
threshold value, P37 value will change from <20 to >200.
P38
Pot1
The value of RV1 on the control card. 255=fully CW setting for
5VDC input. (Not applicable for keypad operation).
P39
Pot2
The value of RV2 on the control card. 255=fully CW setting for
5VDC input. (Not applicable for keypad operation).
P40
Pot3
The value of RV3 on the control card. 255=fully CW setting for
5VDC input. (Not applicable for keypad operation).
P41
DC I/P
0–12V input for load monitoring or phase angle setpoint etc.
P42
Thermistor
Monitors the Thermistor I/P (standard motor thermistor). The values
are not all that useful as thermistors act much like a switch.
P43
4–20mA I/P
Monitors the 4 to 20mA input. Note this input is referenced to the
PCB 0V and so cannot be used with daisy chained sensors.
P44
TEMP Trip Level
The value at which Parameter 37 causes a trip.
P45
4–20mA MAP
Value is the Parameter to which the 4–20mA data is sent.
P46
4–20mA Set Level
Value is the level at which the 4–20mA level bit will be set.
P47
DC Input Map
Value is parameter to which the DC input data is sent.
P48
Set Level DC I/P
Value is the level at which the DC–I/P level bit will be set.
P49
MAP DAC O/P 1
The value is the parameter that is the source for DAC 1 (0–10VDC).
P50
MAP DAC O/P 2
The value is the parameter that is the source for DAC 2 (0–10VDC).
P27
Advanced Current
Parameters
MN850
The maximum current used during the last start–up.
The number of cycles allowed for an overcurrent condition before
tripping (only when shearpin flag P51, Bit3=1). For 60 Hz, 60 cycles
= 1second. For 50 Hz, 50 cycles = 1second.
Sets the overload current level as a portion of FLA. (P34 is always
active but P30 is only active during motor starting.)
Parameter Index 4-9
Title
Parameters
Continued
P#
P51
User Flags 1
P52
User Flags 2
P53
User Flags 3
P54
I/O Polarity
Determines the polarity of the digital inputs and outputs.
A Bit set=0; is negative logic. A Bit set=1; is positive logic.
Example:
P54, Bit0=1 (K1 mapped to Main Contactor), P57=52,
P58=00100000 P52, Bit 5=1 will cause K1 to close.
Definition (Preset Value)
Bit0= Relay K1 (1, positive)
Bit1= Relay K2 (1, positive)
Bit2= Relay K3 (1, positive)
Bit3= Relay K4 (1, positive)
Bit4= Control Input 1 (1, positive)
Bit5= Control Input 2 (1, positive)
Bit6= Control Input 3 (1, positive)
Bit7= Led (RED) Unused
P55
MAP LED
Unused
P56
LED MASK
Unused
P57
Map K1 To (Parameter)
P58
K1 Bit Mask (P57 bit selected for K1)
The parameter number that will control Relay K1. The preset is P52:
User Flags 1–2. (P57 operates with P58). (Mapped to means
electronic transfer of the analog value.)
Sets the bit in the parameter selected by P57 that operates the relay
K1 on the control card. The preset is P52:User Flags 1–2, Bit5 (main
contactor). (P58 operates with P57).
7 6 5 4 3 2 1 0 Bits
1 0 0 0 0 0 0 0
0 1 0 0 0 0 0 0
0 0 1 0 0 0 0 0 (Preset)
0 0 0 1 0 0 0 0
0 0 0 0 1 0 0 0
0 0 0 0 0 1 0 0
0 0 0 0 0 0 1 0
0 0 0 0 0 0 0 1
P59
Map K2 To (Parameter)
4-10 Parameter Index
Parameter
Description
Note that these bits operate with P52 bit 6 (param group selector). This lets you set
a primary and secondary group value: e.g. P14: Kick Time 1 (primary);
P82: Kick Time 2 (secondary).
Definition (Preset Value)
Bit0= Kickstart selector (0, do not select kickstart)
Bit1= Current limit timeout (1, trip on timeout)
Bit2= Overload selector (1, selects overload operation)
Bit3= Shearpin selector (1, selects shearpin operation)
Bit4= Low current selector (0, do not select low current operation)
Bit5= Thermistor selector (0, do not select thermistor operation)
Bit6= Not Used
Bit7= Remote input selector (1, start/stop by remote terminals) (See P52 Bit4)
Bit0=
Bit1=
Bit2=
Bit3=
Bit4=
Bit5=
Bit6=
Bit7=
Definition (Preset Value)
Low voltage stop selector (0, do not select low voltage part of stop ramp)
Not global enable 1 - active low (0, not active signal from terminal)
Not global enable 2 - active low (0, not active signal from bus)
Keypad Start/Stop (0, Off)- (Available when P51 Bit7=0)
Remote Start/Stop (0, Off)- (Available when P51 Bit7=1)
Main contactor selector (0, Off)- (use with a relay)
Parameter group selector (0, Off= Group 1)
Zero Start Time (0, do not use full voltage at motor start)
Bit0=
Bit1=
Bit2=
Bit3=
Bit4=
Bit5=
Bit6=
Bit7=
Definition (Preset Value)
User Flag 1 Polarity (1, positive)
User Flag 2 Polarity (1, positive)
User Current limit (0, do not request a start ramp hold)
User trip (0, do not request a trip)
Invert Controller Input (1, set point source input is inverted in servo loop)
Inhibit restart (0, inhibited restart control is disabled)
Thermal Switch 2 Enable (0, Secondary thermal control is disabled)
Unused
The parameter number that will control Relay K2. The preset is P8:
Status 1. (P59 operates with P60). (Mapped to means electronic
transfer of the analog value.)
MN850
Title
Parameters
Continued
MN850
P#
P60
Parameter
K2 Bit Mask (P59 bit selected for K2)
Description
Sets the bit in the parameter selected by P59 that operates the relay
K2 on the control card. The preset is P8:Status 1, Bit3 (Top of Ramp
or Full Volts). (P60 operates with P59).
7 6 5 4 3 2 1 0 Bits
1 0 0 0 0 0 0 0
0 1 0 0 0 0 0 0
0 0 1 0 0 0 0 0
0 0 0 1 0 0 0 0
0 0 0 0 1 0 0 0 (Preset)
0 0 0 0 0 1 0 0
0 0 0 0 0 0 1 0
0 0 0 0 0 0 0 1
P61
MAP K3 TO (Parameter)
Value is the destination parameter number for the K3 bit.
Parameter 62 is the mask for P61 (Map K3 To).
P62
K3 BIT MASK
Parameter 62 is the mask for P61 (Map K3 To).
P63
MAP K4 TO (Parameter)
Value is the destination parameter number for the K4 bit.
Parameter 64 is the mask for P63 (Map K4 To).
P64
K4 BIT MASK
Parameter 64 is the mask for P63 (Map K4 To).
P65
Map I/P1 To (Parameter)
The parameter number that will control Input 1 on the control card.
The preset is P52: User Flags 1–2. (Parameter 66 is the mask for
P65, Map I/P1 To). (Mapped to means electronic transfer of the
analog value.)
P66
I/P1 Bit Mask (P65 bit selected for I/P1)
Sets the bit in the parameter selected by P65 that operates Input 1 of
the control card. The preset is P52:User Flags 1–2, Bit4 (Board
Start/Stop). (Parameter 66 is the mask for P65, Map I/P1 To).
7 6 5 4 3 2 1 0 Bits
1 0 0 0 0 0 0 0
0 1 0 0 0 0 0 0
0 0 1 0 0 0 0 0
0 0 0 1 0 0 0 0 (Preset)
0 0 0 0 1 0 0 0
0 0 0 0 0 1 0 0
0 0 0 0 0 0 1 0
0 0 0 0 0 0 0 1
P67
Map I/P2 To (Parameter)
P68
I/P2 Bit Mask (P67 bit selected for I/P2)
The parameter number that will control Input 2 on the control card.
The preset is P0. (Parameter 68 is the mask for P67, Map I/P2 To).
(Mapped to means electronic transfer of the analog value.)
Parameter 68 is the mask for P67, Map I/P2 To.
P69
Map I/P3 To (Parameter)
P70
I/P3 Bit Mask (P69 bit selected for I/P3)
The parameter number that will control Input 3 on the control card.
The preset is P0. (Parameter 70 is the mask for P69, Map I/P3 To).
(Mapped to means electronic transfer of the analog value.)
Parameter 70 is the mask for P69, Map I/P3 To.
Parameter Index 4-11
Title
Advanced Current
Parameters
P#
P71
Parameter
Contactor Delay (after start command)
Description
Sets the delay time between the request to actuate K1 and the start
of firing the thyristors.
P72
Trip Sensitivity (1=fastest trip)
Unused
P73
Last Trip (Most Recent Trip)
P73 stores the most recent trip code for the most recent fault. Trip
code definitions are as follows:
0 Not Used
1 Phase Loss Fault. One or phases of the incoming three phase AC power is
missing. Check fuses etc.
2 Thermal Switch Fault. A thermal switch (fan cooled units only) detected an over
temperature condition. P51 (or P95) bit 5 enabled.
3 * Thyristor Signal Fault. Thyristor control signal fault.
4 * Thyristor Firing Fault. One or more thyristors not firing.
5 * Thyristor Signal Fault. Thyristor control signal fault.
6 * Thyristor Signal Fault. Thyristor control signal fault.
7 * Thyristor Sensing Signal Fault.
8 * Thyristor Sensing Signal Fault.
9 * Thyristor Sensing Signal Fault.
10 * Thyristor Short Circuit. Thyristor shorted across the poles.
11 Under Current Fault. When Top of Ramp" is reached, P28 (or P87) Low
Current Level and P29 (or P88) Low Current Time become active. If P51, Bit 4
is enabled, a fault will occur if the output current is less than P28 for longer
than the P29 time period.
12 Current Limit Fault. During start-up, P30 (or P89) Current Limit Level and P31
(or P90) Current Limit Time are active. If P51, Bit 1 is enabled, a fault will occur
if the output current exceeds P30 for longer than the P31 time period.
13 Overload Fault. During normal operation, P34 (or P93) Overload Level and P35
(or P94) Overload Delay are active. If P51, Bit 2 is enabled, a fault will occur if
the output current is equal to or greater than P34 for longer than the P35 time
period.
14 Shearpin Fault. When Top of Ramp" is reached, P32 (or P91) Shearpin Level
and P33 (or P92) Shearpin Time become active. If P51, Bit 3 is enabled, a fault
will occur if the output current is greater than P32 for longer than the P33 time
period.
15 Thermistor Fault. Motor is overtemperature.
16 External Trip.
* Contact Baldor if this fault occurs.
P74
2nd Last Trip
P74 stores the trip code for the fault previous to P73. See P73 for definitions.
P75
3rd Last Trip
P75 stores the trip code for the fault previous to P74. See P73 for definitions.
P76
4th Last Trip
P76 stores the trip code for the fault previous to P75. See P73 for definitions.
P77
5th Last Trip (Oldest trip)
P77 stores the trip code for the fault previous to P76. See P73 for definitions.
P78
Protection Mode 2
(trips or 2nd param set)
Determines the fault protection method
0=
Input phase loss detection only.
64= Full protection with full volts after top of ramp.
128= Full protection during start then bypass (no protection)
192= Full protection + Optimization
P79
Start Pedestal 2
(for 2nd param set)
Sets the voltage level for the “Start of Voltage Ramp”. Must be
sufficient to allow motor to generate a breakaway torque.
P80
Start Time 2 (for 2nd param set)
Sets the time allowed for motor voltage to equal line voltage.
P81
Kick Pedestal 2 (for 2nd param set)
Sets the voltage level at the start of the kickstart operation.
P82
Kick Time 2 (for 2nd param set)
Sets the number of cycles that the P81 voltage is applied. Note that
for 60 Hz, 40 cycles = 667ms. For 50 Hz, 40 cycles = 800ms.
P83
Dwell 2 (for 2nd param set)
Sets the dwell time allowed after top of ramp is reached.
P84
Stop Pedestal 2 (for 2nd param set)
Sets the drop in motor voltage for the “Stop Voltage Ramp”
operation.
P85
Stop Time 2 (for 2nd param set)
Sets the ramp down time for motor stopping.
4-12 Parameter Index
MN850
Section 1
General Information
Title
Parameters
Continued
Parameters
Continued
MN850
86
P#
Parameter
Auto Config 2 (for 2nd param set)
Auto configuration flags for the second
parameter set.
Description
Definition (Preset Value)
Bit0= Unused
Bit1= Auto 3MC (1, enable auto removal of low voltage ramp for
high start pedestals)
Bit2= Auto Bypass (1, enable automatic bypass contactor detection).
Bit3= Auto Jog (0, disable jog detection. If enabled a stop request within
0.5 second of a start request is forced to 0 stop time).
Bit4= Auto Endstop (0, disabled. If enabled detect a stalled motor during
softstop and turn off thyristors).
Bit5= Auto Stop (0, do not detect variations in pf during stop smooth stall).
Bit6= Auto Endstart (0, disable detection of full speed during start and
end of start ramp)
Bit7= Auto Pedestal (0, disable detection of motor rotation at start with
pedestal adjustment).
Sets the under current trip level.
P87
Under Current 2 (for 2nd param set)
P88
Under Current Time 2 (for 2nd param set)
The time allowed for a low current level condition (P87) to exist
before tripping. For 60 Hz, 40 cycles = 667ms.
For 50 Hz, 40 cycles = 800ms.
P89
Current Limit 2 (for 2nd param set)
Sets the motor starting current.
90
(for 2nd param set)
91
Shearpin 2 (for 2nd param set)
The time allowed for start current to equal P89 value before tripping.
Note that for 60 Hz, 40 cycles = 667ms.
For 50 Hz, 40 cycles = 800ms.
Sets the over current trip level. Shearpin operation begins after
start–up is complete.
92
(for 2nd param set)
93
(for 2nd param set)
94
(for 2nd param set)
The time allowed for an overload condition before tripping. For 60
Hz, 60 cycles = 1second. For 50 Hz, 50 cycles = 1second.
95
User Flags 1 (for 2nd param set)
Note that these bits operate with P96 bit 6 (param group selector).
This lets you set a primary and secondary group value.
Definition (Preset Value)
Bit0= Kickstart 2 (0, Off)
Bit1= Current limit selector 2 (1, On)
Bit2= Overload selector 2 (1, On)
Bit3= Shearpin selector 2 (0, Off)
Bit4= Low current selector 2 (0, Off)
Bit5= Thermistor selector 2 (0, Off)
Bit6= Unused
Bit7= Remote starting 2 (1=P96 Bit4) (If 0, 0=P96 Bit 3)
96
User Flags 2 (for 2nd param set)
97
Flag1 I/P Source Address
Address of source flag parameter.
(Parameter 98 is the mask for P97.)
98
Flag1 I/P Source Mask
The bit mask for source flag parameter.
99
Flag1 O/P Destination Address
Address of destination flag parameter.
(Parameter 100 is the mask for P99.)
The number of cycles allowed for an overcurrent condition before
tripping (only when shearpin flag P95, Bit3=1). For 60 Hz, 60 cycles
= 1second. For 50 Hz, 50 cycles = 1second.
Sets the overload current level as a portion of FLA. (P93 is always
active but P89 is only active during motor starting.)
Bit0=
Bit1=
Bit2=
Bit3=
Bit4=
Bit5=
Bit6=
Bit7=
Definition (Preset Value)
Low voltage Softstop (0, Off)
Not global enable 1(2) (0, Off)
Not global enable 2(2) (0, Off)
Keypad Start/Stop 2 (0, Off)- (Available when P95 Bit7=1)
Remote Start/Stop (0, Off)- (Available when P95 Bit7=0)
Main contactor 2 (0, Off)- (use with a relay)
Second Parameter Set 2 (1, On= Group 2)
Zero Start time 2 (0, Off)
Parameter Index 4-13
Section 1
General Information
Title
Parameters
Continued
Parameters
Continued
P#
100
Parameter
Flag1 O/P Destination Mask
Description
The bit mask for destination flag parameter.
101
Flag2 I/P Source Address
Address of source flag parameter.
(Parameter 102 is the mask for P101.)
102
Flag2 I/P Source Mask
The bit mask for source flag parameter.
103
Flag2 O/P Destination Address
Address of destination flag parameter.
(Parameter 104 is the mask for P103.)
104
Flag2 O/P Destination Mask
The bit mask for destination flag parameter.
105
Loop Input
The parameter number used as the source for control loop setpoint.
106
Loop Feedback
The parameter number used as the source for control loop feedback.
107
Error Gain
Multiplier for the control loop error signal.
108
Error Divisor
Divisor for the control loop error signal.
109
Max Slope
The maximum allowed single error in open loop.
110
Guard Gap
The minimum allowed firing delay in both open loop and phase
control modes. This allows for jitter and power factor of the load.
111
User Parameter
This parameter may be set by the user by the serial link.
112
Status 4
113
Drive Type
Unused
114
Baud Rate
Unused
115
Selected App
Value selected from application table. Not implemented on some
versions of software.
116
5MC Inhibit Time (restart not allowed)
Number of minutes after stop that restart is not allowed. (Protects
SCR’s for large loads.)
117
Command Source
Unused
118
Action On Bus Error
Unused
119
Preset Parameter Number to Display
Unused
120
Status 5
121
User Flags 4
122
Soft–Start Smoothing
Sets the amount of soft–start smoothing. This parameter helps
stabilize jitter caused by unstable loads.
123
Reserved for future use.
Unused
124
Reserved for future use.
Unused
125
Reserved for future use.
Unused
4-14 Parameter Index
Bit0=
Bit1=
Bit2=
Bit3=
Bit4=
Bit5=
Bit6=
Bit7=
Definition (Preset Value, all = 0)
The unit is using 60Hz parameters
The phase rotation detected at start (RYB Sequence)
Indicates current is greater than shearpin level
Indicates current is less than under current level
Thermistor is overtemperature or I/P's are open circuit
Current limit has timed out
Overload has passed trip level
Heatsink temperature is greater than max allowed
Bit0=
Definition (Preset Value)
Thermal Switch 2 Over temp . Prevents re-start if set. (0, Off)
Bit0=
Bit1=
Bit2=
Definition (Preset Value)
Unused
Allow for quicker comms response (0, Off)
enable Soft stop smoothing for pumps (0, Off)
MN850
Section 5
Troubleshooting
Safety Notice
Be sure to read and understand all notices, warning and caution statements in Section 1
of this manual. If you have any questions about the safe operation of this equipment,
please contact your Baldor representative before you proceed.
Preliminary Checks
In the event of trouble, disconnect all input power to the control and perform these
preliminary checks.
Power Off Checks
1.
2.
3.
4.
5.
Check all connections for tightness and signs of overheating.
Check for cracked or damaged insulators and terminal blocks.
Ensure the correct setting of the overload relay.
Check the 115VAC input power.
If one or more SCR’s should be replaced, contact Baldor.
Table 5-1 Fault Trip Messages
This menu is used to view the last five fault trip conditions. Additional information about
fault trips may be found in the troubleshooting section of this manual.
Note: The control is shipped with five fault messages in the log (P73–P77). The last
message is “External Trip”. There is no software method to clear the fault log.
Block Title
Parameter
Description
Trips
1 16 External Trip
Use the “⇑” and “⇓” keys to scroll through the fault trip list. In this example,
1 = the most recent trip (5 would indicate oldest). Parameters P73 to P77.
16 = the code for the fault trip.
External Trip = the text message for the fault trip.
16 error conditions that cause a fault trip to occur are: (E1 – E16)
1 – Phase loss. This is a start–up protection fault that indicates single phase power at the
AC input. This error can also indicate phase unbalance or undervoltage (low voltage).
2 – Too Hot. Heat sink temperature exceeded limit. Possible causes are overload, frequent
starting, poor ventilation, excessive dirty on heat sink, high ambient temperature or high
humidity.
3 – SCR Signal. Excessive electrical noise on input power lines.
4 – SCR Firing. SCR’s are not responding to firing commands. May be a result of a failed
control board, voltage spikes on power lines, noise, loose connections or SCR failure.
5 – SCR Signal. Excessive electrical noise on input power lines.
6 – SCR Signal. Excessive electrical noise on input power lines.
7 – SCR Sensing. Loss of the sensing signal from an SCR. May be a result of a failed SCR,
loss of phase current when running, undervoltage or phase unbalance when running.
8 – SCR Sensing. Loss of the sensing signal from an SCR. May be a result of a failed SCR,
loss of phase current when running, undervoltage or phase unbalance when running.
9 – SCR Sensing. Loss of the sensing signal from an SCR. May be a result of a failed SCR,
loss of phase current when running, undervoltage or phase unbalance when running.
10 – SCR Shorted. Shorted SCR is detected. If not using input contactor, it is recommended
that you map this fault to an output relay to trip the circuit breaker if the error occurs. When
one phase is shorted, motor can be stopped. However, when two or three phases are
shorted, the motor cannot be stopped without the input contactor.
11 – Low Current. Motor current is less than full load current level (broken belt or coupling).
12 – C/L Timeout. Motor current exceeded current limit value. Voltage was reduced to limit
output current but it still exceeded limit for longer than allowed.
13 – Overload. Provides overload protection for SCR’s. (Not for motor thermal overload).
The value of the overload current trip detection was exceeded.
14 – Shearpin. The value of the high current Shearpin trip detection has been exceeded.
15 – Thermistor. Optional with I/O expansion board. Refer to MN851 for information.
16 – External Trip. Optional with I/O expansion board. Refer to MN851 for information.
MN850
Troubleshooting 5-1
Table 5-2 Troubleshooting Guide
INDICATION
Unit fails to start
CORRECTIVE ACTION
LED’s on control card are OFF and no error messages displayed:
1. Verify that 115VAC is present at X1 and X2 terminals.
2. Verify that 9VAC is present at terminal J2 (see Section 2 cover removal).
Green power LED is ON and no error messages displayed:
1. Control board or other component may be defective. Contact Baldor.
Unit trips during
start
1. Check parameter 73 (last trip) error code and isolate source of problem (see Table 5-1).
2. Verify that all three phases of AC input power and motor power are present (no missing phases).
3. If input contactor is used, verify AC input power is present at L1, L2 and L3 before the contactor delay time
is complete. If the SCR’s fire before AC power is present, the “Phase Loss” message is displayed and
unit will trip.
4. Verify all connections at the SCR gate connections. (Resistance check: with all power removed, the
resistance between adjacent Red & Yellow wires at the control card connections can be checked.
Between pins 1–2, 3–4, 5–8 etc. the resistance should be between 10 – 50 ohms ±20%.
5. Verify there are no power factor correction capacitors on the output. Power factor correction capacitors may
only be connected on the line side of the control and must be switched out during starting.
6. Verify SCR are not shorted (error display “Motor SCR Loss”). (Resistance check: with all power removed,
the resistance can be checked between adjacent Red to Red wires at the control connections. Between
pins 1–4 (L3 & T3), 5–8 (L2 & T2) and 9–12 (L1 & T1) the resistance must be greater than 500k ohms.
7. If the “Shearpin” or “Overload” messages are displayed, verify that the soft–start control is correctly sized.
8. If the “Too Hot” message is displayed, verify the thermal switch connection (or jumper is installed) at J4.
9. If the “Sensing Signal” or “SCR Signal” messages are displayed, problem can be excess noise or failure on
another circuit board. Contact Baldor.
10. Verify that the motor is less than 328ft.(100m) from the soft–start control.
Bad start then unit
trips
1. Check parameter 73 (last trip) error code and isolate source of problem (see Table 5-1).
2. Verify that AC input power and motor power wires are not reversed. (The motor will give an initial kick then
start very roughly.)
3. Verify all connections at the SCR gate connections. (Resistance check: with all power removed, the
resistance between adjacent Red & Yellow wires at the control card connections can be checked.
Between pins 1–2, 3–4, 5–8 etc. the resistance should be between 10 – 50 ohms ±20%.
4. Verify there are no power factor correction capacitors on the output. Power factor correction capacitors may
only be connected on the line side of the control and must be switched out during starting.
5. Verify SCR are not shorted (error display “Motor SCR Loss”). (Resistance check: with all power removed,
the resistance can be checked between adjacent Red to Red wires at the control connections. Between
pins 1–4 (L1 & T1), 5–8 (L2 & T2) and 9–12 (L3 & T3) the resistance must be greater than 500k ohms.
6. Verify that the motor is less than 328ft.(100m) from the soft–start control.
SCR’s short on
first start–up
1. Verify there are no power factor correction capacitors on the output. Power factor correction capacitors may
only be connected on the line side of the control and must be switched out during starting.
2. Verify that the soft–start control is correctly sized. Verify the Rated Current, Overload Trip level, and trip
delay are correct for the application.
3. Verify that the motor is less than 328ft.(100m) from the soft–start control. Also, verify the motor and motor
leads are good.
Unit trips during
ramp–up
1. Check parameter 73 (last trip) error code and isolate source of problem (see Table 5-1).
2. Verify that all three phases of AC input power and motor power are present (no missing phases).
Check for blown fuse if “Phase Loss” message is displayed.
3. Verify that the soft–start control is correctly sized. Verify the Rated Current, Overload Trip level, and trip
delay are correct for the application.
4. If the “Too Hot” message is displayed, verify the thermal switch connection (or jumper is installed) at J4.
5-2 Troubleshooting
MN850
Table 5-2 Troubleshooting Guide Continued
INDICATION
Initial motor kick
then bad start
CORRECTIVE ACTION
Verify that AC input power and motor power wires are not reversed.
(The motor will give an initial kick then start very roughly.)
Current is not
displayed
1. Verify the current transformer connections at J3 control terminal.
2. Verify that the soft–start control is correctly sized.
Motor does not
accelerate
1. Verify the Current Limit parameter value and increase if necessary.
2. Verify the Ramp Time parameter value and decrease if necessary.
3. Excessive motor current, decrease load.
4. Insufficient break away torque. Change pedestal voltage value to allow greater break away torque.
Fuse(s) blown
1. Excessive start time.
2. Fuse undersized. Use only specified fuses for UL short circuit current ratings (see Section 2).
Cannot change
starting from
“Remote” to
“Keypad”
Remote start input. Factory preset start input is Programmable Input 1 terminals S1 and S0. If a start voltage has
been applied to S1 and S0, you cannot change to Keypad until the start command is removed. Therefore,
remove the start voltage from S1 and S0 and then change to keypad.
Figure 5-1
230/460VAC 3 Phase
L1
L2
L3
5
5MC–PCB
Red
Yellow
Yellow
Red
3
1
1
2
3
4
RUN
6
4
Red
Yellow
5
6
Yellow
Red
7
8
Red
Yellow
9
10
TOR
Yellow
11
Red
12
2
T1
T2
T3
3 Phase
Motor
MN850
Troubleshooting 5-3
Electrical Noise Considerations
All electronic devices are vulnerable to significant electronic interference signals
(commonly called “Electrical Noise”). At the lowest level, noise can cause intermittent
operating errors or faults. From a circuit standpoint, 5 or 10 millivolts of noise may cause
detrimental operation. For example, analog speed and torque inputs are often scaled at 5
to 10VDC maximum with a typical resolution of one part in 1,000. Thus, noise of only 5
mV represents a substantial error.
At the extreme level, significant noise can cause damage to the drive. Therefore, it is
advisable to prevent noise generation and to follow wiring practices that prevent noise
generated by other devices from reaching sensitive circuits. In a control, such circuits
include inputs for speed, torque, control logic, and speed and position feedback, plus
outputs to some indicators and computers.
Relay and Contactor Coils
Among the most common sources of noise are the coils of contactors and relays. When
these highly inductive coil circuits are opened, transient conditions often generate spikes
of several hundred volts in the control circuit. These spikes can induce several volts of
noise in an adjacent wire that runs parallel to a control-circuit wire. Figure 5-1 illustrates
noise suppression for AC and DC relay coils.
Figure 5-1 AC and DC Coil Noise Suppression
RC snubber
AC Coil
0.47 mf
+
DC Coil
Diode
33 W
-
Control Enclosures
Motor controls mounted in a grounded enclosure should also be connected to earth
ground with a separate conductor to ensure best ground connection. Often grounding
the control to the grounded metallic enclosure is not sufficient. Usually painted surfaces
and seals prevent solid metallic contact between the control and the panel enclosure.
Likewise, conduit should never be used as a ground conductor for motor power wires or
signal conductors.
Special Motor Considerations
Motor frames must also be grounded. As with control enclosures, motors must be
grounded directly to the control and plant ground with as short a ground wire as possible.
Capacitive coupling within the motor windings produces transient voltages between the
motor frame and ground. The severity of these voltages increases with the length of the
ground wire. Installations with the motor and control mounted on a common frame, and
with heavy ground wires less than 10 ft. long, rarely have a problem caused by these
motor–generated transient voltages.
Analog Signals
Analog signals generally originate from speed and torque controls, plus DC tachometers
and process controllers. Reliability is often improved by the following noise reduction
techniques:
•
•
•
5-4 Troubleshooting
Use twisted-pair shielded wires with the shield grounded at the drive end only.
Route analog signal wires away from power or control wires (all other wiring types).
Cross power and control wires at right angles (90°) to minimize inductive noise
coupling.
MN850
Section 6
Specifications and Product Data
Identification
Three Phase Digital Soft–Start
MD 7 016 C B
Control Type
MD – Multipurpose Digital
Input Voltage
7- 208, 230, 460VAC
8- 230, 460, 575VAC
Ampere Rating
009- 9 Amp
016- 16 Amp
023- 23 Amp
030- 30 Amp
044- 44 Amp
059- 59 Amp
072- 72 Amp
085- 85 Amp
105- 105 Amp
146- 146 Amp
174- 174 Amp
202- 202 Amp
242- 242 Amp
300- 300 Amp
370- 370 Amp
500- 500 Amp
600- 600 Amp
750- 750 Amp
900- 900 Amp
1100- 1100 Amp
1200- 1200 Amp
MN850
Enclosure
A- Open Kit
B- Open Chassis (IP20)
C- NEMA12 (IP65)
P- Panel Mount
Note: Open Chassis meets NEMA Type 1 enclosure
requirements but does not comply with UL Type
1 requirement for cable bending space.
Soft–Start Type
A- Combination controller with:
S Input circuit breaker
S Input contactor
S Motor overload
S Multipurpose Digital Soft–Start
B- Non–Combination controller with:
S Input contactor
S Motor overload
S Multipurpose Digital Soft–Start
C- Controller only
S Multipurpose Digital Soft–Start
Specifications and Product Data 6-1
Input Ratings
Input Voltage Range
MD7–XXX = 208/230/460 VAC
MD8–XXX = 230/460/575 VAC
Phase
Three Phase
Input Frequency
60/50 HZ ± 5%
Overload Rating
Continuous 115% of FLA; 350% for 30 seconds.
Duty Cycle
Continuous
Peak Inverse Voltage
MD7–XXX = 1400VAC
MD8–XXX = 1600VAC
S0, S1
12VDC or 24VDC
X1, X2
115VAC (98 – 126VAC) or 230VAC (196 – 253VAC)
+10% to –15%
+10% to –15%
maximum
maximum
Storage Conditions
Ambient Temperature:
–4 to 140°F (-20 to 60 °C)
Humidity:
0 - 95% RH Non-Condensing
Operating Conditions
Enclosure:
NEMA 1 – Wall mounted (Industrial indoor, general purpose)
For other enclosures, contact Baldor.
The SCR’s generate about 3.3 watts of heat per running amp (motor
FLA). If the control is mounted in an enclosure, the installer must
provide fans or blower with sufficient ventilation. Fan or blower
should be rated for at least 0.8 CFM per ampere of motor FLA rating.
Baldor provided enclosures are designed to dissipate the heat from
the SCR’s.
Humidity:
0 - 85% RH Non-Condensing (not to exceed 50% at 40°C ambient).
Control Heat Loss
3.3 Watt per running ampere of input current
Ambient Operating Temperature:
32-113°F (0 to +40 °C) enclosed
32-122°F (0 to +40 °C) open panel
Altitude:
Sea level to 3300 Feet (1000 Meters)
Derate 1% per 330 Feet (100 Meters) above 3300 Feet
Derating
Derate Amp rating 1% per 330 Feet (100 Meters) above 3300 Feet
Derate Amp rating 2% per °C over 40 °C to 60 °C Max
Output Relays – K1 and K2 contacts
Category AC1, 230VAC, 3A.
6-2 Specifications and Product Data
MN850
Standard Duty: Agitator, Compressor, Centrifuge, Fan, Blower, Chiller, Escalator, Pump,
Bandsaw, Low Inertia Fan, Small Pump.
Medium Duty: Mill, Conveyor, Drilling Press, Reciprocating Compressor, Elevator, Screw
Feeder, Grinder, Hammer Press, Mixer, Large Pump, High Inertia Fan, Pelletizer, Pulper, Flywheel
Press, Positive Displacement Pump, Circular Saw, Vibrating Screens.
Heavy Duty: Rock Crusher, Pulverizer, Separator, Chipper, Screw Compressor.
Catalog
Number
MD7–009–CB
MD7–016–CB
MD7–023–CB
MD7–030–CB
MD7–044–CB
MD7–059–CB
MD7–072–CB
MD7–085–CB
MD7–105–CB
MD7–146–CB
MD7–174–CB
MD7–202–CB
MD7–242–CB
MD7–300–CB
MD7–370–CB
MD7–500–CB
MD7–600–CB
MD7–750–CB
MD7–900–CB
MD8–009–CB
MD8–016–CB
MD8–023–CB
MD8–030–CB
MD8–044–CB
MD8–059–CB
MD8–072–CB
MD8–085–CB
MD8–105–CB
MD8–146–CB
MD8–174–CB
MD8–202–CB
MD8–242–CB
MD8–300–CB
MD8–370–CB
MD8–500–CB
MD8–600–CB
MD8–750–CB
MD8–900–CB
MD8–1100–CB
MD8–1200–CB
MN850
Output
Cont.
Current
9A
16A
23A
30A
44A
59A
72A
85A
105A
146A
174A
202A
242A
300A
370A
500A
600A
750A
900A
9A
16A
23A
30A
44A
59A
72A
85A
105A
146A
174A
202A
242A
300A
370A
500A
600A
750A
900A
1100A
1200A
Standard Duty
230V
460V
575V
5
5
10
7.5
15
10
20
15
30
20
40
25
50
30
60
40
75
50
100
60
125
75
150
100
200
125
250
150
300
200
400
500
600
700
5
7.5
5
10
10
7.5
15
20
10
20
25
15
30
40
20
40
50
25
50
60
30
60
75
40
75
100
50
100
60
125
150
75
150
200
100
200
250
125
250
150
300
300
200
400
400
500
500
600
600
700
700
800
800
900
900
230V
5
7.5
10
15
15
20
30
40
50
60
75
100
125
150
200
5
7.5
10
15
15
20
30
40
50
60
75
100
125
150
200
HP Ratings
Medium Duty
460V
5
7.5
10
15
20
30
40
50
60
75
100
125
150
200
250
300
400
500
600
5
7.5
10
15
20
30
40
50
60
75
100
125
150
200
250
300
400
500
600
700
800
575V
230V
5
7.5
10
15
20
30
40
50
60
75
100
125
150
200
5
7.5
10
20
30
40
50
60
75
125
150
200
250
400
500
600
700
800
5
7.5
10
15
20
30
40
50
60
75
100
125
150
200
Heavy Duty
460V
575V
5
7.5
10
15
20
30
40
50
60
75
100
125
150
200
250
300
400
500
5
7.5
10
15
20
30
40
50
60
75
100
125
150
200
250
300
400
500
600
700
5
7.5
10
20
30
40
50
60
100
125
150
300
400
500
600
600
700
Specifications and Product Data 6-3
Mounting Dimensions
Size 1
0.23 (M6) Slot
4 Places
16.31
(414)
14.93
(379)
0.23 (M6) Hole
4 Places
Ground
Ground
1.41
(36)
4.9
(125)
8.74
(222)
7.68
(195)
5.9
(150)
Model #
–9
–16
–23
–30
–44
–59
–72
–85
–105
–146
6-4 Specifications and Product Data
Weight lb (kg)
16.1(7.3)
16.1(7.3)
16.1(7.3)
16.1(7.3)
16.1(7.3)
18.3(8.3)
18.3(8.3)
18.3(8.3)
18.3(8.3)
18.3(8.3)
MN850
Mounting Dimensions Continued
Size 2
Ground
20.47
(520)
19.68
(500)
0.23 (M6) Hole
2 Places
0.23 (M6) Slot
2 Places
9.84
(250)
10.43
(265)
13.38
(340)
Model #
–174
–202
–242
–300
–370
MN850
Weight lb (kg)
34.6(15.7)
34.6(15.7)
48.5(22)
48.5(22)
48.5(22)
Specifications and Product Data 6-5
Mounting Dimensions Continued
Size 3
24.01
(610)
22.64
(575)
0.39 (M10) Hole
3 Places
0.39 (M10) Slot
3 Places
1.38(35)
9.84
(250)
9.84
(250)
15.75
(400)
3.44
(87.5)
26.58
(675)
Model #
–500
–600
–750
–900
6-6 Specifications and Product Data
Weight lb (kg)
143.3(65)
143.3(65)
158.8(72)
158.8(72)
MN850
Mounting Dimensions Continued
Size 4
12.68 (322)
25 (635)
10.87 (276)
24.45 (621)
5.95
(151)
Air Flow
7.88
(200)
7.88
(200)
3.94
(100)
4.13
(105)
1.9
7
(50)
7.59 (193)
m10
T1, T2, T3
7.59 (193)
6.58
(167)
Model #
–1100
–1200
MN850
4.53
(115)
L1, L2, L3
Weight lb (kg)
158.8 (72)
165.4 (75)
Specifications and Product Data 6-7
6-8 Specifications and Product Data
MN850
Appendix A
CE Guidelines
CE Declaration of Conformity
Baldor indicates that the products are only components and not ready for immediate or instant use
within the meaning of “Safety law of appliance”, “EMC Law” or “Machine directive”.
The final mode of operation is defined only after installation into the user’s equipment. It is the
responsibility of the user to verify compliance.
The product conforms with the following standards:
EN 60947–4–2
Low–voltage switch gear and control gear – Contactors and motor
starters – AC semiconductor motor controllers and starters.
EMC – Conformity and CE – Marking
The information contained herein is for your guidance only and does not guarantee that the
installation will meet the requirements of the council directive 89/336/EEC.
The purpose of the EEC directives is to state a minimum technical requirement common to all the
member states within the European Union. In turn, these minimum technical requirements are
intended to enhance the levels of safety both directly and indirectly.
Council directive 89/336/EEC relating to Electro Magnetic Compliance (EMC) indicates that it is the
responsibility of the system integrator to ensure that the entire system complies with all relative
directives at the time of installing into service.
Motors and controls are used as components of a system, per the EMC directive. Hence all
components, installation of the components, interconnection between components, and shielding and
grounding of the system as a whole determines EMC compliance.
The CE mark does not inform the purchaser which directive the product complies with. It rests upon
the manufacturer or his authorized representative to ensure the item in question complies fully with all
the relative directives in force at the time of installing into service, in the same way as the system
integrator previously mentioned. Remember, it is the instructions of installation and use, coupled with
the product, that comply with the directive.
Wiring of Shielded (Screened) Cables
Remove the outer insulation
to expose the overall screen.
MN850
Conductive
Clamp
Appendix A-1
Using CE approved components will not guarantee a CE compliant system!
1. The components used in the drive, installation methods used, materials
selected for interconnection of components are important.
2.
The installation methods, interconnection materials, shielding, filtering and
grounding of the system as a whole will determine CE compliance.
3.
The responsibility of CE mark compliance rests entirely with the party who
offers the end system for sale (such as an OEM or system integrator).
Baldor products which meet the EMC directive requirements are indicated with a “CE” mark. A duly
signed CE declaration of conformity is available from Baldor.
L1
AC Main
Supply
Control
L2
Four Wire
“Wye”
L1 L2 L3 PE
T1 T2 T3
Note:
Wiring shown for clarity of
grounding method only.
Not representative of actual
terminal block location.
L3
PE
Route all power wires
L1, L2, L3 and Earth
(Ground) together in
conduit or cable.
All shields
Note:
Motor
GND
Enclosure Backplane (see Section 2)
Use shielded cable for control signal wires. Route
control signal wires in conduit. These wires must be
kept separate from power and motor wires.
A-2 Appendix
MN850
EMC Installation Instructions
To ensure electromagnetic compatibility (EMC), the following installation instructions should be
completed. These steps help to reduce interference.
Consider the following:
•
Grounding of all system elements to a central ground point
•
Shielding of all cables and signal wires
•
Filtering of power lines
A proper enclosure should have the following characteristics:
A) All metal conducting parts of the enclosure must be electrically connected to the
back plane. These connections should be made with a grounding strap from
each element to a central grounding point . B)
Keep the power wiring (motor and power cable) and control wiring separated. If
these wires must cross, be sure they cross at 90 degrees to minimize noise due
to induction.
C)
The shield connections of the signal and power cables should be connected to
the screen rails or clamps. The screen rails or clamps should be conductive
clamps fastened to the cabinet. D)
The cable to the regeneration resistor must be shielded. The shield must be
connected to ground at both ends.
E)
The location of the AC mains filter has to be situated close to the drive so the
AC power wires are as short as possible.
F)
Wires inside the enclosure should be placed as close as possible to conducting
metal, cabinet walls and plates. It is advised to terminate unused wires to
chassis ground. G)
To reduce ground current, use at least a 10mm2 (6 AWG) solid wire for ground
connections.
Grounding in general describes all metal parts which can be connected to a
protective conductor, e.g. housing of cabinet, motor housing, etc. to a central
ground point. This central ground point is then connected to the main plant (or
building) ground.
Or run as twisted pair at minimum.
Cable Screens Grounding
Cable (Twisted Pair Conductors)
Conductive Clamp – Must contact bare cable shield
and be secured to metal backplane.
MN850
Appendix A-3
A-4 Appendix
MN850
Appendix B
Parameter Values
Version 5MC (4/2/01)
Title
Parameter
P#
Parameter
Read Only Parameter Values
Adjustable Range
Factory
User Setting
P0
Dummy Parameter
0–255
0
P1
Station Number
1–99
1
P2
Country
1–255
44 (England)
P3
Software Type
Factory Set
Read Only
P4
Software Version
Factory Set
Read Only
Password
P5
Password Value
0–255
0
Advanced
P6
Firing Mode
0–3
0
Basic
P7
Protection Mode
0–192
192 (Full + Optimize)
Parameters
P8
Status 1
0–255
1 (bit 00000001)
P9
Status 2
0–99
0 (bit 00000000)
P10
Status 3
0–255
0 (bit 0000000)
P11
Start Pedestal
10–60%
20 (% of line volts)
P12
Start Time
1–255 seconds
5 (seconds)
P13
Kick Pedestal
60–90%
75 (% of Line)
P14
Kick Time
10–40 cycles
25 Cycles
P15
Dwell Time
1–255 seconds
5 seconds
P16
Stop Pedestal
10–60%
10 (% of Line)
P17
Stop Time
0–255 seconds
0 seconds
Auto Features
P18
Auto Config.
0–255
6 (bit 00000110)
Advanced
P19
Optimise Rate
4–30
5 (for unstable load)
Parameters
P20
Reference PF (Power Factor)
0–147 degrees
146.7626 degrees
P21
Present PF (Power Factor)
0–147 degrees
146.7626 degrees
P22
Delay Angle (SCR OFF time)
0–147 degrees
146.7626 degrees
P23
Maximum Optimizing Delay
17–147 degrees
57.55396 degrees
P24
Rated Current (High Byte –Hundreds)
Factory Set
Factory Set
P25
Rated Current (Low Byte – Units)
Factory Set
Factory Set
P26
Running Current Amps
0–255 Amps
0 Amps
P27
Peak Start Current (measured at last start)
0–255 Amps
0 Amps
P28
Low Current Level (undercurrent trip)
100–800% of running
Amps (P24 & P25)
9.375% of running
Amps
P29
Low Current Time (delay before trip)
5–255 seconds
50 seconds
P30
Current Limit Level (scaling = 0.03125)
1–7.96875 (x Ie) Amps
350% of running
Amps
P31
Current Limit Time (delay before trip)
5–255 seconds
30 seconds
P32
Shearpin Level (undercurrent trip)
1–5 (x Ie) Amps
3.125 x Ie Amps
P33
Shearpin Time (delay before trip)
5–255 cycles
100 cycles
P34
Overload Level (SCR protection)
0.59–2 (x Ie) Amps
1.09375 x Ie Amps
P35
Overload Delay (delay before trip)
10–140
140
Basic
Advanced
Basic
Advanced Current
Note: (x Ie) means “Times the rated current of the control (P24 and P25 values).”
MN850
Applications B-1
Read Only Parameter Values
Title
Parameters
Advanced Current
B-2 Applications
P#
Parameter
Adjustable Range
Factory
P36
% Overload (status only)
0–100% (100%=Tripped)
0%
P37
Chassis Temperature
0–255
0
P38
Pot1
0–255
0
P39
Pot2
0–255
0
P40
Pot3
0–1
0
P41
DC I/P
0–12
0VDC
P42
Thermistor
0–255
0
P43
4–20mA I/P
0–20.4
0mA
P44
TEMP Trip Level
20–255
30
P45
4–20mA Map
0–125
0 (parameter #)
P46
4–20mA Set Level
0.08–20.32
10.24mA
P47
DC Input Map
0–125
0 (parameter #)
P48
Set Level DC I/P
0.03922–9.960784
5.019608 VDC
P49
Map DAC O/P 1
0–125
26 (parameter #)
P50
Map DAC O/P 2
0–125
22 (parameter #)
P51
User Flags 1
0–255
142 (Bit 10001110)
P52
User Flags 2
0–255
0 (Bit 00000000)
P53
User Flags 3
0–255
19 (Bit 00010011)
P54
I/O Polarity
0–255
127 (Bit 01111111)
P55
MAP LED
0–255
9 (x Ie)
P56
LED MASK
0–255
1 (x Ie)
P57
Map K1 To (Parameter)
0–125
52 (Parameter #)
P58
K1 Bit Mask (P57 bit selected for K1)
0–255
32 (bit 00100000)
P59
Map K2 To (Parameter)
0–125
8 (Parameter #)
P60
K2 Bit Mask (P59 bit selected for K2)
0–128
8 (bit 00001000)
P61
Map K3 To (Parameter)
0–125
9 (Parameter #)
P62
K3 Bit Mask (P61 bit selected for K3)
0.1–3
1 (bit 00000001)
P63
Map K4 To (Parameter)
0–125
9 (Parameter #)
P64
K4 Bit Mask (P63 bit selected for K4)
0–3
2 (bit 00000010)
P65
Map I/P1 To (Parameter)
0–125
52 (Parameter #)
P66
I/P1 Bit Mask (P65 bit selected for I/P1)
0–128
16 (bit 00010000)
P67
Map I/P2 To (Parameter)
0–125
0 (Parameter #)
P68
I/P2 Bit Mask (P67 bit selected for I/P2)
0–128
0 (bit 00000000)
P69
Map I/P3 To (Parameter)
0–125
0 (Parameter #)
P70
I/P3 Bit Mask (P69 bit selected for I/P3)
0–128
0 (bit 00000000)
P71
Contactor Delay (after start command)
20–800milli seconds
160 milli seconds
P72
Trip Sensitivity (1=fastest trip)
1–15 (Status Code)
1
P73
Last Trip (Most Recent Trip)
1–16 (Status Code)
0
User Setting
MN850
Section 1
General Information
Read Only Parameter Values
Title
Parameters
MN850
P#
Parameter
Adjustable Range
Factory
User Setting
P74
2nd Last Trip
1–16 (Status Code)
0
P75
3rd Last Trip
1–16 (Status Code)
0
P76
4th Last Trip
1–16 (Status Code)
0
P77
5th Last Trip (Oldest trip)
1–16 (Status Code)
0
P78
Protection Mode 2
0–192
192 (Full + Optimize)
P79
Start Pedestal 2
10–60%
50 (% of line volts)
P80
Start Time 2
1–255 seconds
5 seconds
P81
Kick Pedestal 2
60–90%
75 (% of line volts)
P82
Kick Time 2
10–40 seconds
25 seconds
P83
Dwell 2
1–255 seconds
5 seconds
P84
Stop Pedestal 2
10–60 seconds
10 seconds
P85
Stop Time 2
0–255 seconds
0 seconds
P86
Auto Config 2
0–255
6 (Bit 00000110)
P87
Under Current 2
0–1 (x Ie) Amps
0.125 x Ie Amps
P88
Under Current Time 2
5–255 seconds
50 seconds
P89
Current Limit 2
0–8 (x Ie) Amps
4 x Ie Amps
P90
Current Limit Time 2
5–255 seconds
15 seconds
P91
Shearpin 2
1–5 (x Ie) Amps
3 x Ie Amps
P92
Shearpin Time 2
5–255 cycles
50 cycles
P93
Overload Level 2
0.5–2 (x Ie) Amps
1.09375 x Ie Amps
P94
Overload Delay 2
10–140 seconds
140 seconds
P95
User Flags 1 (for 2nd param set)
0–255
134 (Bit 10000110)
P96
User Flags 2 (for 2nd param set)
0–255
64 (Bit 01000000)
P97
Flag 1 I/P Source Address
0–125
0 (Parameter #)
P98
Flag 1 I/P Source Mask
0–128
0 (bit 00000000)
P99
Flag 1 O/P Destination Address
0–125
0 (Parameter #)
P100
Flag 1 O/P Destination Mask
0–255
0 (bit 00000000)
P101
Flag 2 I/P Source Address
0–125
0 (Parameter #)
P102
Flag 2 I/P Source Mask
0–20
0 (bit 00000000)
P103
Flag 2 O/P Destination Address
0–125
0 (Parameter #)
P104
Flag 2 O/P Destination Mask
0–11
0 (bit 00000000)
P105
Loop Input
0–125
41 (Parameter #)
P106
Loop Feedback
0–125
26 (Parameter #)
P107
Error Gain
1–255
37
P108
Error Divisor
1–255
7
P109
Max Slope
0–50
10
P110
Guard Gap
0–150
10
Applications B-3
Section 1
General Information
Read Only Parameter Values
Title
Parameters
B-4 Applications
P#
Parameter
Adjustable Range
Factory
P111
User Parameter
0–255
0
P112
Status 4
0–255
0 (bit 00000000)
P113
Drive Type
0–255
0
P114
Baud Rate
0–4
0
P115
Selected App
0–9
0
P116
5MC Inhibit Time (restart not allowed)
0–63.75 minutes
0 minutes
P117
Command Source
Unused
P118
Action On Bus Error
0–3
0
P119
Preset Parameter Number to Display
0.1–125
26 (parameter #)
P120
Status 5
0–255
0 (bit 00000000)
P121
User Flags 4
1–255
0 (bit 00000000)
P122
Soft–Start Smoothing
1–15
5 (for unstable load)
P123
Reserved for future use.
P124
Reserved for future use.
P125
Reserved for future use.
User Setting
MN850
Appendix C
Replacement Parts
Voltage Independent Parts
PART No.
SSDTR900
SSDTR370
SSDCBL146
SSDCBL900
SSDCBL370
SSDEBKPD
SSDCT044
SSDCT202
SSDCT370
SSDCT900
SSDCVR146
SSDCVR900
Description
Control power transformer, 9–44 A & 500–900 A
Control power transformer, 59–370 A
Keypad Cable, 16–146 A
Keypad Cable, 500–900 A
Keypad Cable, 174–370 A
Keypad for all amp sizes
Current transformer, 9– 44 A AND 500–900A
Current transformer, 59–202 A
Current transformer, 242–370 A
Current transformer, 500–900 A
Cover, 9–146 A
Cover, 174–900 A
460VAC Parts
PART No.
SSD1PSCR030
SSD1PSCR146
SSD1SCR202
SSD3PC242
SSD1SCR300
SSD3SCR370
SSD1SCR370
SSDPC600
SSD1SCR600
SSDPC900
SSD1SCR900
SSDEB009
SSDEB016
SSDEB023
SSDEB030
SSDEB044
SSDEB059
SSDEB072
SSDEB085
SSDEB105
SSDEB146
SSDEB174
SSDEB202
SSDEB242
SSDEB300
SSDEB370
SSDEB500
SSDEB600
SSDEB750
SSDEB900
SSDCBLGT900
SSDCBLGT059
SSDCBLGT146
SSDCBLGT370
Description
1 Phase SCR pair for 9, 16, 23, 30 A
1 Phase SCR pair for 72, 85, 105, 146 A
1 Phase SCR pair for 174, 202 A
1 Phase power cell for 242, 300A
Single SCR 242, 300A, 460V
1 Phase power cell for 370 A
Single SCR 370A
1 Phase power cell for 500, 600 A
Single SCR 500, 600A
1 Phase power cell for 750, 900 A
Single SCR 900A
Standard control board for 9 A
Standard control board for 16 A
Standard control board for 23 A
Standard control board for 30 A
Standard control board for 44 A
Standard control board for 59 A
Standard control board for 72 A
Standard control board for 85 A
Standard control board for 105 A
Standard control board for 146 A
Standard control board for 174 A
Standard control board for 202 A
Standard control board for 242 A
Standard control board for 300 A
Standard control board for 370 A
Standard control board for 500 A
Standard control board for 600 A
Standard control board for 750 A
Standard control board for 900 A
Gate/Cathode wire assembly, 500–900 A
Gate/Cathode wires, 16–59 A
Gate/Cathode wires, 72–146 A
Gate/Cathode wires, 174–370 A
Continued on next page
MN850
Appendix C-1
575VAC Parts
PART No.
SSD1PSCR059
SSD1PSCR8030
SSD1PSCR8059
SSD1PSCR8146
SSD1SCR8202
SSD3PC8242
SSD1SCR8300
SSD3SCR8370
SSD1SCR8370
SSDPC8600
SSD1SCR8600
SSDPC8900
SSD1SCR8900
SSDEB8009
SSDEB8016
SSDEB8023
SSDEB8030
SSDEB8044
SSDEB8059
SSDEB8072
SSDEB8085
SSDEB8105
SSDEB8146
SSDEB8174
SSDEB8202
SSDEB8242
SSDEB8300
SSDEB8370
SSDEB8500
SSDEB8600
SSDEB8750
SSDEB8900
SSDCBLGT8059
SSDCBLGT8146
SSDCBLGT8370
SSDCBLGT8900
C-2 Appendix
Description
1 Phase SCR pair for 44, 59 A
1 Phase SCR pair for 9, 16, 23, 30 A
1 Phase SCR pair for 44, 59 A
1 Phase SCR pair for 72, 85, 105, 146 A
1 Phase SCR pair for 174, 202 A
1 Phase power cell for 242, 300A
Single SCR 242, 300A
1 Phase power cell for 370 A
Single SCR 370A
1 Phase power cell for 500, 600 A
Single SCR 500, 600A
1 Phase power cell for 750, 900 A
Single SCR 900A
Standard control board for 9 A
Standard control board for 16 A
Standard control board for 23 A
Standard control board for 30 A
Standard control board for 44 A
Standard control board for 59 A
Standard control board for 72 A
Standard control board for 85 A
Standard control board for 105 A
Standard control board for 146 A
Standard control board for 174 A
Standard control board for 202 A
Standard control board for 242 A
Standard control board for 300 A
Standard control board for 370 A
Standard control board for 500 A
Standard control board for 600 A
Standard control board for 750 A
Standard control board for 900 A
Gate/Cathode wires, 16–59 A
Gate/Cathode wires, 72–146 A
Gate/Cathode wires, 174–370 A
Gate/Cathode wire assembly, 500–900 A
MN850
Appendix D
Voltage Surge Protection
Grounding
Proper grounding is extremely important. The symptoms produced by improper
grounding are obvious. Sometimes filters and other expensive devices are added to
reduce the effects of problems caused by poor grounding. There can be several
reference points (neutrals) in a circuit but there should always only be one ground point.
Neutral and ground are not the same. Neutral should normally be a non current carrying
conductor, but it should be sized to carry momentary current caused be short circuits in
the equipment. All of the neutrals in a system should connect at a central point and that
point should be connected to the system ground.
The goal is to minimize the current through the ground conductor. Circulating ground
current is a source of electrical noise normally associated with unbalanced voltages or
unbalanced loads. Capacitive or inductive coupling between power lines and the neutral
or ground conductors is another noise source. Currents that flow through capacitive
paths or from a magnetic field tend to change rapidly and produce high frequency
interference called RFI (radio frequency interference).
Good grounding is also important to minimize the effects of large voltage spikes that can
create significant current flow in the ground conductors. The source of these voltages
can be lightning striking the power lines, switching of large power loads and others. A
balanced three phase four wire system with a system ground as shown in Figure D-1 can
minimize noise problems normally associated with grounding. AC power and motor
leads should be as short as possible and enclosed in conduit or shielded cable should be
used. Power wires and Motor leads should never be in the same conduit.
Figure D-1
Control
Enclosure
L1 L2 L3
AC Main Supply
Note: Wiring shown for clarity of grounding
method only. Not representative of
actual terminal block location.
T1 T2 T3
L1
L2
L3
Earth
Safety
Ground
Driven Earth Ground Rod
(Plant Ground)
Four Wire
“Wye”
Route all 4 wires L1, L2, L3 and Earth (Ground)
together in conduit or shielded cable.
Route all 4 wires T1, T2, T3 and Motor Ground together in conduit or shielded cable.
Ground per NEC and Local codes.
Connect all wires (including motor ground) inside the motor terminal box.
MOV
(Metal Oxide Varistor)
Baldor recommends that MOV devices be installed at the input power connections to the
Soft–Start control to provide “phase–to phase” and “phase–to–ground” voltage spike
protection. Three MOV devices can be connected in “WYE” configuration with an
additional MOV device connected to ground. Figures D-2 and D-3 shows how to connect
the MOV’s into the various power distribution system designs. Voltage spikes on any
phase will be conducted to ground by the lowest impedance path (phase–to–phase or
phase–to–ground).
MN850
Voltage Surge Protection D-1
Figure D-2 WYE Configurations
Symbol
Ungrounded
Control
Enclosure
L1 L2 L3
T1 T2 T3
L1
L2
L3
Do not ground MOV. Cut off green wire and insulate (cap off) with wire nut.
MOV
Symbol
Grounded or
High Resistance Ground
Control
Enclosure
L1 L2 L3
T1 T2 T3
L1
L2
L3
MOV
D-2 Voltage Surge Protection
MN850
Figure D-3 Delta Configurations
Symbol
Control
Enclosure
Ungrounded
L1 L2 L3
T1 T2 T3
L1
L2
L3
Do not ground MOV. Cut off green wire and insulate (cap off) with wire nut.
MOV
Corner or Center–Tap
Grounded
Symbol
Control
Enclosure
L1 L2 L3
T1 T2 T3
L1
L2
L3
MOV
Do not ground MOV. Cut off green wire and insulate (cap off) with wire nut.
Table D-1 Baldor MOV Specifications
Catalog #
Line Voltage
Volts
Energy
Joules
Peak Current
Amps
Clamping Voltage
Volts
MN850
MOV505L
480
260
6500
1300
MOV620EL
575
300
6500
1580
Voltage Surge Protection D-3
D-4 Voltage Surge Protection
MN850
Appendix E
MN850
Appendix E-1
Section 1
General Information
Remote Keypad Mounting Template
4.00
2.500
(A)
(A)
Four Places
Tapped mounting holes, use #29 drill and 8-32 tap
(Clearance mounting holes, use #19 or 0.166″ drill)
5.500
4.810
1-11/16″ diameter hole
Use 1.25″ conduit knockout
(B)
1.340
(A)
(A)
1.250
E-2 Appendix
Note: Template may be distorted due to reproduction.
MN850
BALDOR ELECTRIC COMPANY
P.O. Box 2400
Ft. Smith, AR 72902–2400
(479) 646–4711
Fax (479) 648–5792
www.baldor.com
CH
TEL: +41 52 647 4700
FAX:+41 52 659 2394
D
TEL: +49 89 90 50 80
FAX:+49 89 90 50 8491
UK
TEL: +44 1454 850000
FAX:+44 1454 850001
F
TEL: +33 145 10 7902
FAX:+33 145 09 0864
I
TEL: +39 11 562 4440
FAX:+39 11 562 5660
AU
TEL: +61 29674 5455
FAX:+61 29674 2495
CC
TEL: +65 744 2572
FAX:+65 747 1708
MX
TEL: +52 477 761 2030
FAX:+52 477 761 2010
 Baldor Electric Company
MN850
Printed in USA
5/03 C&J1500