Oriental motor VEXTA TD Series Operating Manual Download Page 3

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Model

Rated output current

Power input

Excitation mode

Operating mode

Speed range

Speed setting method

Input signal

Output signal

External speed setting input

Acceleration /
deceleration rate setting

Mass

Ambient temperature 

Full-step, 0.72°/ step (4-phase excitation)

Oscillator mode
Pulse-train mode

0 to 1500 r /min

Setting by built-in potentiometer

Setting by external potentiometer

Setting by external DC voltage (0 to 5 V )

Photocoupler input, input resistance 220 

Input current 20 mA or less

Signal voltage H : 4.5 to 5 V, L : 0 to 0.5 V

START/ STOP (pulse input in pulse-input mode)

RUN / BRAKE

CW/ CCW

HOLD OFF

Speed setting method selection

Photocoupler / open-collector output

External use conditions: 26.4 VDC, 20 mA or less

Pulse output

Input resistance : 47 k

External potentiometer : 20 k

, 1/4 W

External voltage : 0 to 5 VDC

Setting by built-in potentiometer

Setting range : 0 to 3000 ms (at a speed of 1000 r/min)

Linear acceleration / deceleration or jerk-limit control

0.12 kg (3.5 oz)

0 to 50°C (32 to 122°F)

TD514-V

1.4 A

12 to 24 VDC ±10%

2.5 A or less

TD528-V

2.8 A

12 to 24 VDC ±10%

4.5 A or less

Specifications 

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Do not use the product in an atmosphere containing explosive,
flammable or corrosive gases, in a place exposed to water, or near
flammable objects.  Doing so may result in fire or injury.  

The installation, connection, operation / control, inspection and trou-
bleshooting of the product must be performed by qualified per-
sonnel.  Handling of the product by unqualified personnel may re-
sult in fire or injury.  

Provide a measure to retain the position of the movable part of the
equipment when the product is used in a vertical application.  The
motor loses its holding capability when the power is cut off.  Without
an appropriate measure, the movable part will descend, resulting
in injury or equipment damage.  

When the driver’s protection function is activated, the motor will
stop and lose its holding ability, possibly causing injury or equip-
ment damage. 

When the driver’s protection function is activated, remove the cause
of the problem, and turn the power back on.  Allowing the driver to
continue operating without removing the cause of the problem may
lead to motor or driver malfunction, resulting in injury or equipment
damage.

Safety precautions

The precautions provided in this section are intended to ensure safe
and correct use of the product, thereby preventing damage or injury
to the user or other personnel.  Fully understand the meaning of each
item before using the product.

Handling the product without observing the instructions that accom-
pany a “Warning” symbol may result in death or serious bodily injury.

General

Handling the product without observing the instructions that accompa-
ny a “Caution” symbol may result in bodily injury or property damage.

These notes appear throughout the manual and describe items that
must be observed by the user in certain situations to ensure correct
use of the product.

Note

Warning

Caution

Installation

Install the driver in an enclosure.  Failure to do so may result in in-
jury.

Connection

Always use the driver with a power source of the rated voltage.
Failure to do so may result in fire.

For the driver, use a DC power source with reinforced insulation
provided on the primary and secondary sides.  Failure to do so may
result in electric shock.  

Connect the product correctly and securely according to the wiring
diagram.  Failure to do so may result in fire. 

Warning

Summary of Contents for VEXTA TD Series

Page 1: ...thoroughly to ensure safe operation Always keep the manual where it is readily available POWER SPEED ACCEL DECEL J LIM RUN STOP O P 1SHOT OFF CD 1 2 3 ON 1 1 Introduction 2 Safety precautions 3 Precautions for use 5 Preparation 6 Checking the product 6 Applicable motors 6 Names and functions of parts 7 Installation 8 Location for installation 8 Installation method 8 Connection 9 Power connection 9...

Page 2: ...built in oscillator that provides easy accurate speed control Product overview Main features This product is a compact lightweight bipolar constant current dri ver with a built in oscillator ideal for driving 5 phase stepping mo tors using the New Pentagon drive system method It can drive mo tors requiring an operating current of up to 1 4 A phase TD514 V or 2 8 A phase TD528 V Easy synchronizatio...

Page 3: ... used in a vertical application The motor loses its holding capability when the power is cut off Without an appropriate measure the movable part will descend resulting in injury or equipment damage When the driver s protection function is activated the motor will stop and lose its holding ability possibly causing injury or equip ment damage When the driver s protection function is activated remove...

Page 4: ...ult in injury If the motor s output shaft must be moved directly by hand for manual alignment etc do so after confirming that the driver s HOFF input is ON Failure to do so may result in injury Should you find any abnormality immediately turn off the power to the driver Failure to do so may result in fire or injury Operation Caution 21 Vibration is generated due to a change in acceleration when th...

Page 5: ...resulting in unstable operation The HOFF input is turned ON Symptom Possible cause Corrective action Check again to see whether the driver and motor are connected properly Check the current setting again Turn the HOFF input to OFF and confirm that the motor has holding torque The motor has no holding torque The motor can be moved by hand 5 Keep the driver s heat sink temperature at 80 C 176 F or b...

Page 6: ...cking the product 6 Applicable motors 6 Names and functions of parts 7 Installation 8 Location for installation 8 Installation method 8 Connection 9 Power connection 9 Motor connection 9 I O Connection 10 Connection of I O 11 Explanation of I O 12 Timing chart 14 Setting 15 Setting of operating speeds and acceleration deceleration rates 15 Switch settings 16 Setting of motor currents 17 Overvoltag...

Page 7: ... varies depending on the con nected motor and power source voltage Shown below are repre sentative values when the driver is combined with each of the ap plicable standard motors 7 Names and functions of parts This section covers the names and functions of the driver s respec tive parts See the reference page indicated for details on each part POWER SPEED ACCEL DECEL J LIM RUN STOP O P 1SHOT OFF C...

Page 8: ...stallation method Example of driver installation 1 Example of driver installation 2 20 mm or more 0 79 inch or more 50mm or more 1 96 inch or more 20 mm or more 0 79 inch or more 50mm or more 1 96 inch or more 17 The motor operating current is set to 1 4 A phase TD514 V or 2 8 A phase TD528 V at the factory If the rated current of the con nected motor is other than these values be sure to use the ...

Page 9: ...ables the Auto Current Cutback function The motor current will automatically switch to standstill cur rent approximately 100 ms after the motor is stopped Turning switch 1 3 CDOFF to ON disables the Auto Current Cutback function Use this switch only when setting the motor operating current Linear acceleration deceleration T T T Jerk limit control time If the jerk limit control time is set to a val...

Page 10: ... setting a speed via the D A out put of a programmable controller or when operating the motor at two speeds using the internal potentiometer concurrently The speed setting range is between 0 and 1500 r min For external DC voltage use a DC power source 0 to 5 VDC 1 mA or more with reinforced insulation provided on the primary and secondary sides To operate the motor at the speed set with an externa...

Page 11: ...wer input External potentiometer connection or potentiometer voltage input GND not isolated from main power input Signal name COM START PLS RUN DIR H OFF EXTVR POUT POUT VR H VR M VR L Direction Input Input Input Input Input Input Output Output Output Input Table of I O functions in pulse train mode Pin no 1 2 3 4 5 6 7 8 9 10 11 Description I O power input 5 VDC Pulse input Invalid ON CCW OFF CW ...

Page 12: ...hen this input is OFF CW is selected When this input is ON CCW is selected The direction of rotation indicates that of the motor s output shaft as viewed from the mounting face side of the motor DIR input When this input is OFF the motor is excited When this input is ON the current supply to the motor is cut off and excitation stops HOFF input External VR built in VR selection When this input is O...

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