Baldor cl manual

Motor Type LC. Mounting Arrangement F1. Number of Poles 4. Overall Length Power Factor Product Family General Purpose. Pulley End Bearing Type Ball. Pulley Face Code C-Face. Pulley Shaft Indicator Standard. Rodent Screen None. Service Factor 1. Shaft Diameter 1. Shaft Extension Location Pulley End. Shaft Rotation Reversible. Shaft Slinger Indicator No Slinger.

Speed rpm. Speed Code Single Speed. Starting Method Direct on line. Thermal Device - Bearing None. Winding Thermal 1 Manual Thermal Overload. Winding Thermal 1 Location KO.

Winding Thermal 2 None. CAD File. Drawing files for this product are currently unavailable. For additional assistance, please contact your local Baldor sales office. The drawing for the product you have selected is available from our Part Community Portal. Visit our portal by following the link below. For additional service, please contact a local sales office.

CAD files for this product are currently unavailable. Visit one of our Part Community Portals for further assistance. Visit our Part Community Portal for further assistance. Your download is ready. Thank you. Parameter Definitions To make programming easier, parameters have been arranged into the two level structure shown in Table Use the Up and Down arrows to scroll through the parameter blocks.

Tables and provide an explanation of each parameter. A complete Parameter Block Values list is located at the end of this manual. This list defines the programmable range and factory preset value for each parameter. The list has a space to record your settings for future reference. For motor operation, a motor direction command must be given along with a preset speed command. S-Curve 1,2 S-Curve is a percentage of the total Accel and Decel time and provides smooth starts and stops.

Note: Accel 1, Decel 1 and S-Curve 1 are associated together. Likewise, Accel 2, Decel 2 and S-Curve 2 are associated together. These associations can be used to control any Preset Speed or External Speed command. Note: If drive faults occur during rapid Accel or Decel, selecting an S-curve may eliminate the faults.

Jog can be initiated from the keypad or terminal strip. Command Select Selects the external speed reference to be used. If long distance is required between the external speed control and the control, the mA selections at J and J should be considered. Current loop allows long cable lengths without attenuation of the command signal. Serial -selects optional Serial Communications expansion board if installed. Note: When using the mA input, the JP1 jumper on the main control board must be moved to pins 2 and 3.

ANA 2 Deadband Allows a voltage threshold to be defined. A command signal level below this voltage will not affect the control output.

Overload - A normally closed contact that is active opens during an Overload fault caused by a time out when output current is greater than Rated Current. Keypad Control - Active when control is in Local keypad control. Fault - Active when a fault condition is present.

Active Low when FWD direction command received. CMD Direction - Active at all times. Logical output state indicates Forward Open or Reverse Closed direction. AT Position - Active during a positioning command when control is within the position band parameter tolerance. Turns off when process feedback error is eliminated.

Could be used as a torque ready output. This output is high when the control is ready and a forward or reverse command is issued. The delay helps compensate for any contactor bounce. The output turns OFF when forward and reverse are dropped and after the armature current is reduced to zero. Refer to Opto Output description of Section 2. This is use- ful when a motor brake is to interlock operation with a motor. The opto output is active if the motor speed is outside this band.

Sets the no fault operating speed range of the drive. If the drive speed falls out of this band, the Level 2 Protection block, Following Error parameter will shut down the drive if it is set to ON.

This is useful when another machine must not start or stop until the motor exceeds a predetermined speed. The absolute torque output is scaled by the torque constant. The torque constant or torque per armature amp drops as the field current drops. Thus, in field weakening the torque output remains accurate. Useful as a load meter output. ARM Current - 2.

ARM Volts - Arm volts scaled 2. Torque - Bipolar torque output. Power - Bipolar power output. I2t Position - Position within a single revolution. The counter will reset to 0 every revolution. Line Timer - Internally used square wave form, phase locked to L1-L2. Useful to set the zero value or full scale 2 range for external meters. Position Band Sets the acceptable range in digital counts pulses at which the AT Position Opto becomes active turns on.

Adjustable range is V. It is automatically set to suit the encoder resolution during the Auto Tuning function. A larger value provides a more filtered signal but at the cost of reduced bandwidth. A smaller value provides smoother low speed operation.

Position Gain Sets the position loop proportional gain. Used for armature feedback only. Null Force Gain Adjusts small signal current loop response relative to changes in firing angle. Helps current loop response to be nominal over the entire current range of the control, particularly at light loads.

Helps prevent creeping at zero speed. Shunt wound motors that have a rising speed characteristic where speed increases with load may not be suitable for armature feedback. Instead, Tachometer or Encoder feedback should be used for these shunt wound applications. Run motor at base speed with no load. Do not rely on the RPM display of the control as it may not be accurate with armature feedback.

Run motor at base speed with full load. Repeat steps 1 to 3 until no load speed step 1 and full load speed step 2 are matched. The standard power supply for controls to HP can supply up to 15 amps for shunt wound motors. If using permanent magnet motors, the field power supply may be disabled by selecting NONE. If the shunt wound motor requires more than 15 amps for its field, an optional 40 amp field power supply may be added.

This is used to keep the fields warm to ensure the motor can run to its base speed. Field economy is also often used instead of a space heater. Excessive voltage may cause the field to overheat resulting in premature motor failure. Forcing Level This setting is often used in the hoist mode to over saturate the fields causing a soft start or stop. Field Set Speed This sets the speed at which the field voltage is switched from the Forcing Level to the standard field run voltage.

Only available in Series 20H Line Regen controls. Field Step Limit This sets the ramp rate time when changing from field levels field force voltage to standard run voltage.

Field Integral Selects the gain type for the field regulator. OFF selects proportional only. In most cases, the ON setting will improve the accuracy of the field control current settings. During operation, the motor speed will not be allowed to go below this value except for motor starts from 0 RPM. PK Current Limit The maximum output peak current to the motor. This value will be automatically reduced for large values.

The output rate display is only available if the Value At Speed parameter value is non zero. The first number left most is the value you want the keypad to display at a specific motor speed. The second number right most is the motor RPM corresponding to the units in the first number. Units of Measure Allows user specified units of measure to be displayed on the Output Rate display.

Use the shift and arrow keys to scroll to the first and successive characters. Foldback is the choice if continuous operation is desired.

ON - External Trip is enabled. If a normally closed contact at J is opened, an External Trip fault will occur and cause the drive to shut down. Following Error This parameter determines if the control is to monitor the amount of following error that occurs in an application.

Operation outside the speed range will cause a fault and the drive will shut down. Torque Proving When this parameter is set to ON the control tests for armature circuit continuity for a 20ms period.

It indicates a torque proving fault if sufficient current is not sensed. This feature is useful in many applications to ensure torque is being applied. In a hoist, for example, torque proving could be used to make sure torque exists before a brake is released. Available settings are On and OFF. Factory setting is OFF. Automatic - If a fault or power loss occurs, the control will automatically reset to resume operation.

After one hour without reaching the maximum number of faults or if power is turned off and on again, the fault count is reset to zero. Restart Delay The amount of time allowed after a fault condition for an automatic restart to occur. Useful to allow sufficient time to clear a fault before restart is attempted.

Factory Settings Restores factory settings for all parameter values. Note: When factory settings are reset, the Motor Rated Amps value is reset to This Level 2 Motor Data block parameter value must be changed to the correct value located on the motor rating plate before attempting to start the drive and auto tune. Homing Offset In Bipolar and Serial modes, this parameter sets the number of digital encoder counts past home at which the motor stop command is issued.

Quadrature encoder pulses are 4 times the number of encoder lines per revolution. The recommended minimum number is encoder counts to allow for deceleration distance to allow the motor to stop smoothly.

Note: Homing direction is always forward. Serial - Requires security Access Code to be entered before changes can be made using the Serial Link. Total - Requires security Access Code to be entered before changes can be made using the Keypad or serial link.

Note: If security is set to Local, Serial or Total you can press PROG and scroll through the parameter values that are programmed but you are not allowed to change them unless you enter the correct access code. Access Timeout The time in seconds the security access remains enabled after leaving the programming mode.

If you exit and go back into the program Mode within this time limit, the security Access Code does not have to be re-entered. Access Code A 4 digit number code.

Only persons that know the code can change secured Level 1 and Level 2 parameter values. Note: Please record your access code and store it in a safe place. If you cannot gain entry into parameter values to change a protected parameter, please contact Baldor. Be prepared to give the 5 digit code shown on the lower right side of the Keypad Display at the Security Control Access Code parameter prompt. If the motor current exceeds this value for a period of time, an Overload fault will occur.

Motor Field This indicates the type of field in the motor. Available settings are Shunt and Permanent Magnet. Motor Field Volts The rated field volts of the motor listed on the motor nameplate based on the connections you have made.

Many motors have a dual voltage field that may be connected in series or parallel. Motor Field Amps The rated field amps of the motor for base speed operation and based on the connections you have made.

Many motors have a dual voltage field. This is stated on the motor nameplate or shown in the motor connection diagram. The standard field supply for controls up to HP is 15 Amps. An optional 40 Amp field supply is available for dual voltage field motors and for controls that are HP and larger.

If the field current drops to less than 0. Feedback Type This designates the type of feedback used by the control. DC tachometer and resolver feedback are available with the appropriate optional expansion boards. Feedback device must be coupled to the motor shaft or at a ratio.

Encoder Counts The number of counts pulses per revolution, if an encoder is feedback type. Resolver Speed The speed of the resolver, if a resolver is used for feedback type.

The parameter is only active when the optional Resolver to Digital expansion board is installed. The parameter is only active when the optional tachometer feedback expansion board is installed.

PK Power Limit This setting is often used as a commutation limiter in permanent magnet servo motors to set the peak current for commutation limits. Used with reverse acting processes that use a unipolar signal such as mA. Setpoint Source Sets the source input signal type to which the process feedback will be compared. Setpoint Command Sets the value of the setpoint the control will try to maintain by adjusting motor speed. Sets the maximum speed correction value to be applied to the motor in response to the Set PT ADJ Limit maximum feedback setpoint error.

The result is that if the process input is within the comparison band the corresponding Opto Output will become active. Sets the PID loop proportional gain. Sets the PID loop differential gain. For example, the master encoder you want to follow is a count encoder. The follower motor you wish to control also has a count encoder on it. If you wish the follower to run twice the speed of the master, a ratio is entered. Fractional ratios such as 0.

Ratio limits are 65, to This parameter is used only when Serial Communications is used to operate the control. Defines the number of pulses per revolution of the master encoder. Only used for follower drives.

Ensure that both the load and motor are free to rotate freely. This is accomplished by accelerating the motor open loop, detecting the phasing of encoder feedback and counting the number of encoder pulses per revolution of the motor.

This works for resolvers and determines direction in tachometer systems. This procedure accelerates the motor to measure the current to acceleration ratio.

If the control is too responsive when loaded, set the current limit to the proper value and rerun this procedure. The Baldor Series 20H Control requires very little maintenance and should provide years of trouble free operation when installed and applied correctly. Occasional visual inspection should be considered to ensure tight wiring connections and to avoid the build up of any dust, dirt, or foreign debris which can reduce heat dissipation.

Before attempting to service this equipment, all input power must be removed from the control to avoid the possibility of electrical shock. The servicing of this equipment should be handled by a qualified electrical service technician experienced in the area of high power electronics.

It is important to familiarize yourself with the following information before attempting any troubleshooting or service of the control. Most troubleshooting can be performed using only a digital voltmeter having an input impedance exceeding 1 meg Ohm. In some cases, an oscilloscope with 5 MHZ minimum bandwidth may be useful. Before consulting the factory, check that all power and control wiring is correct and installed per the recommendations given in this manual. No Keypad Display - Display Contrast Adjustment If there is no visible display, use the following procedure to adjust the contrast of the display.

Press or key Adjusts display contrast intensity. How to Access the Fault Log When a fault condition occurs, motor operation stops and a fault code is displayed on the Keypad display.

To access the fault log use the following procedure:. Display mode showing output Display mode. No faults in fault log. Excessive noise on cables. Separate armature leads from any other power. Defective base ID board. Call Baldor if problem remains.

Correct wiring problems. Excessive noise on encoder lines. Check the position counter in the Diagnostic Information for jittering which will confirm an encoder problem.

Use recommended encoder cable. Check encoder connections including shields. Separate encoder leads from power wiring. Electrically isolate encoder from motor. Install optional Isolated Encoder Feedback expansion board.

Also check at encoder end pins D and F. Encoder coupling slipping, broken Correct or replace encoder to motor coupling. Check encoder connections. Check tach to motor coupling. Excessive noise on tach lines. Check tach connections. Separate tach leads from power wiring. Use shielded tach leads. Reset at needed. DC Contactor may be open. Check contactor. Incorrect connections to Resolver Check Resolver Feedback expansion board manual for correct wiring Feedback expansion board.

Excessive noise on resolver lines. Check resolver connections. Separate resolver leads from power wiring. Use shielded resolver leads. Table Troubleshooting Continued. Clean motor air intake and exhaust. Check external blower for operation and proper direction of rotation.

Motor draws excessive current. Check motor for overloading. Verify proper sizing of control and motor. No thermostat connected. Verify thermostat has normally closed contacts. Connect thermostat. Verify connection of all external trip circuits used with thermostat. Disable thermostat input at J External Trip Input. Poor thermostat connections. Check thermostat connections. External trip parameter incorrect.

Verify connection of external trip circuit at J Following error tolerance band set too narrow. Current limit set too low. Increase Current Limit parameter value. Following Error window too small. Correct motor loading. Ambient temperature too high. Relocate control to cooler operating area. Add cooling fans or air conditioner to control cabinet. If fault remains, call Baldor. Voltage configuration.

Replace logic power supply. Parameter data was erased. Disconnect power to control and DATA apply power cycle power. Enter all parameters.

Cycle power. If problem persists, contact Baldor. Correct if below minimum requirements. Correct if above minimum requirements.

Blown fuse in field power supply. Check fuses and replace as needed. Improperly wired motor field. Check motor field connections for correctness and continuity. Increase Current Limit setting. Check for proper motor loading. Check couplings for binding. Motor field parameter incorrect. Control not in local mode of Place control in local mode.

Incorrect speed command. Verify control is receiving proper command signal at J1. Check for mechanical overload. Improper speed command. Verify control is set to proper operating mode to receive speed command. Verify control is receiving proper command signal at input terminals. Check velocity loop gains.

Speed potentiometer failure. Replace potentiometer. Verify control is set to receive speed command. Add TACH commanding 0 speed. Check input power for proper voltage. Verify fuses are good or breaker is not tripped.

Loose connections. Check input power termination. Verify connection of operator keypad. Adjust display contrast. See Adjust Display Contrast in Section 2 of this manual. Reset parameter values to factory settings. Access diagnostics and compare power base ID number to list in Table to ensure a match. Autotune the control. Need expansion board. Install the correct expansion board for selected operating mode. Defective EXB. Check connections of board to control or other group board.

Check expansion board manual for correct connections. Electrical noise from external DC Install reverse biased diodes across all external DC relay coils as shown in coils.

See Electrical Noise coils. Considerations in Section 4 of this manual. Excessive load. Reduce the motor load. Reduce motor load. Speed parameter value. This check is only performed when motor is started and when control is first enabled. Check input switch connections and switching noise. Verify ground connections at Control and Motor. Refer to custom software fault list. At the lowest level, noise can cause intermittent operating errors or faults. From a circuit standpoint, 5 or 10 millivolts of noise may cause abnormal operation.

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 is the coil of a contactor or a relay. 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 illustrates noise suppression for AC and DC operated coils. Wires between Controls and Motors Output leads from a typical VAC drive controller contain rapid voltage rises created by power semiconductors switching V in less than a microsecond, 1, to 10, times a second.

These noise signals can couple into sensitive drive circuits. Even input AC power lines contain noise and can induce noise in adjacent wires. In some cases, line reactors may be required.

To prevent induced transient noise in signal wires, all motor leads and AC power lines should be contained in rigid metal conduit, or flexible conduit. Do not place line conductors and load conductors in same conduit. Use one conduit for 3 phase input wires and another conduit for the motor leads.

The conduits should be grounded to form a shield to contain the electrical noise within the conduit path. Signal wires - even ones in shielded cable should never be placed in the conduit with motor power wires. Electrical Noise Considerations Continued Special Drive Situations For severe noise situations, it may be necessary to reduce transient voltages in the wires to the motor by adding load reactors.

Load reactors are installed between the control and motor. For maximum benefit, the reactors should be mounted in the drive enclosure with short leads between the control and the reactors.

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.

Sometimes motor frame transient voltages are capacitively coupled to feedback devices mounted on the motor shaft. To prevent this problem, add electrical isolation between the motor and the feedback device. The most simple isolation method, shown in Figure NO TAG, has two parts: 1 A plate of electrical insulating material placed between the motor mounting surface and the feedback device.

Encoder or other feedback device. Analog Signal Wires Analog signals generally originate from speed and torque controls, plus DC tachometers and process controllers. Electrical Noise Considerations Continued Wiring Practices The type of wire used and how it is installed for specific applications makes the difference between obtaining reliable operation and creating additional problems. Power Wiring Conductors carrying power to anything motor, heater, brake coil, or lighting units, for example should be contained in conductive conduit that is grounded at both ends.

These power wires must be routed in conduit separately from signal and control wiring. Therefore, these wires should be routed away from sensitive signal wires and contained within conduits or bundled away from open power and signal wires.

You should avoid grounding the shield to the tachometer case or conduit. Encoder Circuits Adjustable speed drives are especially sensitive to high frequency noise on encoder signal lines. Because these input signals cannot be heavily filtered special care must be taken to avoid transient noise from entering these signal lines.

Avoid common conductors with multiple outputs or with an output and the power source. Plant Ground Connecting electrical equipment to a good ground is essential for safety and reliable operation. Result: equipment malfunctions or electrical shock hazard exists. It may be necessary to retain the services of an electrical consultant, who is also a licensed professional engineer experienced in grounding practices to make the necessary measurements to establish if the plant ground is really grounded.

See Table Control Specifications: Control Method Three phase, full wave, bi-directional regenerative DC control with 6 total pulses per cycle and 6 controlled pulses per cycle.

Ratings Table Ratings Max. Peak Amps are Rated for 3 Seconds Maximum. Air Outlet Grill. Standard output current is 15 amps mounted to the control chassis with an optional separately mounted 40 amp maximum supply available from Baldor Electric.

Note that this connection is phase sensitive with Ll and L2. The standard field connection is shown in Figure A L2 L2 Series 20H Control. Figure A-2 Field Transformer Connection to increase field output voltage f1 f1. Output field voltage is adjusted as specified for the application. It also check for output when a DC tach is specified and sets the feedback direction. Four Places Tapped mounting holes, use 29 drill and tap Clearance mounting holes, use 19 or 0. Box Ft. Smith, AR — — Fax — Cerrar sugerencias Buscar Buscar.

Saltar el carrusel. Carrusel anterior. Carrusel siguiente. Explora Audiolibros. Explora Revistas. Explora Podcasts Todos los podcasts. Dificultad Principiante Intermedio Avanzado. Explora Documentos. Baldor 20H Series Manual. Compartir este documento Compartir o incrustar documentos Opciones para compartir Compartir en Facebook, abre una nueva ventana Facebook. Denunciar este documento.

Marcar por contenido inapropiado. Descargar ahora. Carrusel anterior Carrusel siguiente. Buscar dentro del documento. Horsepower rms Symmetrical Amperes 1—50 5, 51— 10, — 18, — 30, — 42, Caution: Do not supply any power to the External Trip input at J and Do not use same input signal multiple times.

Do not use! When a parameter is selected for programming, the keypad display gives you the following information: Parameter Parameter Status Value and Units Parameter Status. Press or key Scroll to Level 2 Blocks. Press or key Scroll to the Miscellaneous block. Press key Increase value of 2nd digit.

Press key Decrease motor speed. How to Clear the Fault Log Use the following procedure to clear the fault log. Press or key Scroll Fault Log Exit. Figure Isolated Mounting Method Insulating Coupling Insulating plate Encoder or other feedback device Mounting bracket Analog Signal Wires Analog signals generally originate from speed and torque controls, plus DC tachometers and process controllers. Documentos similares a Baldor 20H Series Manual.

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