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T86-IO Closed Loop Stepper Driver
User Manual

Shenzhen Rtelligent Mechanical Electrical Technology Co.,ltd

Product overview

Thank you for choosing Rtelligent T series digital stepper servo driver. Stepper servo is a stepper motor scheme formed based on the common open-loop stepper motor in combination with position feedback and servo algorithm, which features high speed, high torque, high precision, low vibration, low heating and no loss of step. Based on TI’s new 32-bit DSP processing chip platform, T series stepper servo driver uses the field-oriented control (FOC) and vector field-weakening control algorithm in the servo driver, which has the performance of surpassing the ordinary stepper in all aspects.

  • The built-in PID parameter adjustment function makes the motor better meet the application of different kinds of loads.
  • The built-in field-weakening control algorithm makes the motor to reduce the magnetic field characteristics and keep the power at high speed.
  • The built-in current vector control function makes the motor have the current characteristic of servo and low heating.
  • The built-in micro-stepping command algorithm makes the motor can run while maintaining a stable and low vibration at various speeds.
  • The encoder feedback with the built-in 4000 pulse resolution makes the positioning precision increase and never loses the step.

In conclusion, the servo control scheme combined with the characteristics of the stepper motor enables the T series stepper servo driver to better exert the performance of the stepper motor, which can replace the servo application of the same power. It is a new choice of optimal cost performance for automation equipment.

T86-IO driver can set subdivision and other parameters through DIP switch and debugging software. It has protection functions such as voltage, current, and position, and adds alarm output interface. Its input and output control signals are optically isolated.

Power supply20-80 VAC 24 –100 VDC
Control precision4000 Pulse/r
Current controlServo vector control algorithm
Speed settingsDIP switch setting, or debugging software setting
Speed rangeConventional 1200 ~ 1500rpm, up to 4000rpm
Resonance suppressionAutomatically calculate the resonance point and inhibit the IF vibration
PID parameter adjustmentTest software to adjust motor PID characteristics
Pulse filtering2MHz digital signal filter
Alarm outputAlarm output of over-current, over-voltage, position error, etc

We hope that our products with excellent performance can help you to complete the sports control program successfully.
Please read this technical manual before using the products.

Application environment and installation

Environmental requirement
ItemRtelligent T86-IO
Installation environmentAvoid dust, oil, and corrosive environment
Vibration0.5G(4.9m/s2 )Max
Operating temperature/humidity0℃ ~ 45℃ / 90% RH or less (no condensation)
Storage and transportation temperature:-10℃ ~ 70℃
CoolingNatural cooling / away from the heat source
Waterproof gradeIP54
Driver installation dimensions

RTELLIGENT T86-IO Closed Loop Stepper Driver - Driver installation dimensions

Driver installation requirements

Please install the driver vertically or horizontally, with its front-facing forward, top facing upward to facilitate cooling.
During assembly, avoid drillings and other foreign matters falling inside the driver.
During assembly, please use M3 screw to fix.
When there is vibration source (such as a driller) close to the installation position, please use a vibrating absorber or a vibration-resistant rubber gasket.
When multiple drivers are installed in the control cabinet, please pay attention to reserve enough space for sufficient heat dissipation. If necessary, you can configure cooling fans to ensure good heat dissipation conditions in the control cabinet.

Driver port and connection

Port function description
FunctionGradeDefinitionRemarks
Power supply inputACInput AC power supplyAC 20-80V DC 24-100V
ACInput AC power supply
Motor connectionA+Positive terminal of phase-A windingRed
A-Negative terminal of phase-A windingYellow
B+Positive terminal of phase-B windingBlack
B-Negative terminal of phase-B windingGreen
Encoder connectionEB+Positive terminal of Encoder phase BGreen
EB-Negative terminal of Encoder phase BYellow
EA+Positive terminal of Encoder phase ABrown
EA-Negative terminal of Encoder phase AWhite
VCCEncoder working power 5V positiveRed
GNDEncoder working power 5V ground terminalBlue
Pulse connectionPUL+Start input interface24V level
PUL-
D1R+Direction input interface
DIR-
Enable terminalENA+Enable control interface
ENA-
Mann outputALM+Mann output interface24V. below
ALM-
In place outputPend+40mA In place output interface
Pend-
Power supply input

The power supply of the driver can be both AC power and DC power, and the input voltage range is 20V~80VAC or 24V~100VDC.
Please do not connect to commercial electricity(220VAC) directly!

Power selection reference:

Voltage:
Stepper motor has the characteristics of torque decrease with the increase of motor speed, and the input voltage will affect the amplitude of high-speed torque reduction. Properly increasing the voltage of the input power supply can increase the output torque of the motor at high speed.
Stepper servo has a higher speed and torque output than ordinary stepper. Therefore, if you want to get better high-speed performance, you need to increase the power supply voltage of the driver.

Current:
The working process of the driver is to convert the input high-voltage and low-current power supply into the low-voltage and high-current at both ends of the motor winding. In actual use, the appropriate power supply should be selected according to the motor model, load torque, and other factors.

The effects of regeneration voltage:
When the stepper motor is working, it also retains the characteristics of the generator. When decelerating, the kinetic energy accumulated by the load will be converted into electrical energy and superimposed on the driver circuit and input power supply.
Pay attention to the setting of acceleration and deceleration time to protect the driver or power supply.
When the driver is powered off, you will see the driver’s LED indicator on when the load is pulled to make the motor move, which is also affected by this.

Encoder connection

The T86-IO encoder is A/B differential output and is connected in the corresponding order when used.

EB+EB-EA+EA-VCCGND
GreenYellowBrownWhiteRedBlue

Rtelligent is equipped with a certain length of encoder cable, Please purchase extension cables of different lengths according to the installation needs.

Motor connection

The matching motor of the T86-IO driver is the corresponding T series stepper servo motor, and its corresponding motor connection order is fixed and unique.

RTELLIGENT T60 IO Closed Loop Stepper Driver - Motor connection

A+Red
A-Yellow
B+Black
B-Green
Control signal connection
PUL, DIR Port: connection for start and stop command
and direction indicationRTELLIGENT T60 IO Closed Loop Stepper Driver - Control signal connection 1
1. At PUL on and DIR off, the motor is triggered to rotate forward. When PUL is turned off, the motor decelerates and stops.
2. At PUL on and DIR on, the motor is triggered to rotate reverse. When PUL is turned off, the motor decelerates and stops.
3.At PUL off, the motor stops.
ENA port: enable/disable

When the internal optocoupler is off, the driver outputs current to the motor;
When the internal optocoupler is on, the driver will cut off the current of each phase of the motor to make the motor free, and the step pulse will not be responded.
When the motor is in an error state, it is automatically turned off. The level logic of the enable signal can be set to the opposite.

ALM, Pend port: used for alarm and in place output.

The ALM port is used to output the operating status of the driver to an external control circuit. When the driver is in the error state and the normal working state, ALM outputs different optocoupler levels.
The Pend port is used to output the driver in-place signal. When the difference(position deviation) between the pulse command position sent by the upper computer and the current position of the stepper servo motor is less than the set value, the in-place signal is output. The upper computer receives the signal and confirms that the positioning is complete.
In addition, ALM and Pend ports can be reused as brake control (break) signal through software adjustment, which is used to control the brake switch of stepper servo motor with brake. Since the brake coil is an inductive load, and the coil heating is serious when the motor is running, customers can select special brake controller according to their needs to reduce the brake heating and improve life and reliability.

RTELLIGENT T60 IO Closed Loop Stepper Driver - Control signal connection 2Rtelligent provides solutions for dedicated brake controllers, examples are as follows:

RTELLIGENT T60 IO Closed Loop Stepper Driver - Control signal connection 3

RS232 serial port

RTELLIGENT T60 IO Closed Loop Stepper Driver - Control signal connection 4

S/N SymbolDescription
1NC
2+5VPositive terminal of power supply
3TxDRS232 transmitting terminal
4GNDGround terminal of power supply
5RxDRS232 receiving terminal
6NC

RS232 serial port is used to connect T86-IO testing software and change other related operating parameters of driver.

The setting of DIP switches and operating parameters

RTELLIGENT T86-IO Closed Loop Stepper Driver - Motor connection 3

The setting of speed
SpeedSVV1SW2SW3SW4Remarks
100ononononOther speeds can be customized
150offononon
200onoffonon
250offoffonon
300ononoffon
400offonoffon
500onoffoffon
600offoffoffon
700onononoff
800offononoff
900onoffonoff
1000offoffonoff
1100ononoffoff
1200offonoffoff
1300onoffoffoff
1400offoffoffoff
Motor direction selection

DIP SW5 is used to set the running direction of the motor under the initial pulse. The “off” means that the motor direction is counterclockwise when inputting the initial pulse; The “on” means that the motor direction is clockwise when inputting the initial pulse. The initial pulse is the testing pulse used when developing the driver software; Please refer to the actual running direction of the motor.

Open/closed loop selection

DIP SW8 is used to set the driver control mode.
The “off” means the closed-loop control mode;
The “on” means the open-loop control mode and can be used to test the motor.

Driver working status LED indication

LED statusDriver status
Green indicator is on for long timeDriver not enabled
Green indicator is flickeringDriver working normally
One green indicator and one red indicatorDriver overcurrent
One green indicator and two red indicatorsDriver input power overvoltage
One green indicator and three red indicatorsThe internal voltage of the driver is wrong
One green and four red indicatorsTracking error exceeds limits
One green and five red indicatorsEncoder phase error

Common faults and troubleshooting

PhenomenonPossible situationsSolutions
Motor does not workPower indicator is offCheck the power supply circuit for normal power supply
The motor rotor is locked but the motor does not workPulse signal is weak; increase the signal current to 7-16mA
The speed is too slowSelect the right micro-stepping
Driver is protectedSolve the alarm and re-power
Enable signal problemPull up or disconnect the enable signal
Command pulse is incorrectCheck whether the upper computer has pulse output
The steering of motor is wrongThe rotary direction of motor is reverseAdjust the DIP SW5
The motor cable is disconnectedCheck the connection
The motor has only one directionPulse mode error or DIR port damaged
Alarm indicator is onThe motor connection is wrongCheck the motor connection
The motor connection and encoder connection are wrongCheck the sequence of encoder connection
The voltage is too high or too lowCheck the power supply
The position or speed is wrongThe signal is disturbedEliminate interference for reliable grounding
The command input is incorrectCheck the upper computer instructions to ensure the output is correct
The setting of Pulse per revolution is wrongCheck the DIP switch status and correctly connect the switches
Encoder signal is abnormalReplace the motor and contact the manufacturer
The driver terminal
burned up
Short circuit between terminals
circuit
Check power polarity or external short
Internal resistance between terminals is too largeCheck whether there is any solder ball due to excessive addition of solder on the wire connections
The motor is out of
tolerance
Acceleration and deceleration time is too shortReduce command acceleration or increase driver filtering parameters
Motor torque is too lowSelect the motor with high torque
The load is too heavyCheck the load weight and quality and adjust the mechanical structure
The current of power supply is too lowReplace the appropriate power supply

Appendix A. Guarantee Clause

A.1 Warranty period: 12 months
We provide quality assurance for one year from the date of delivery and free maintenance service for our products during the warranty period.

A.2 Exclude the following:

  • Improper connection, such as the polarity of the power supply is reversed and insert/pull the motor connection when the power supply is connected.
  • Beyond electrical and environmental requirements.
  • Change the internal device without permission.

A.3 Maintenance process

For maintenance of products, please follow the procedures shown below:

  1. Contact our customer service staff to get the rework permission.
  2. The written document of the driver failure phenomenon is attached to the goods, as well as the contact information and mailing methods of the sender.

Mailing address:
Post code:
Tel.:
szruitech.com

Documents / Resources

RTELLIGENT T86-IO Closed Loop Stepper Driver [pdf] User Manual
T86-IO, Closed Loop Stepper Driver, T86-IO Closed Loop Stepper Driver

References

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