ORIENTAL MOTOR CO., LTD.

Stepper Motors UMK Series

UMK268A

Print Product Information All at once
PK268-02A UDK2120

Motor/Control Circuit

  This product is currently no longer available for sale.
Product Classification Product Name List Price Shipping Date
Motor / Control Circuit UMK268A - Discontinued Product
(1.4.2015 discontinued)

Included

  • Motor, Control Circuit, Mounting Bracket for Control Circuit (with Screw), Operating Manual

Specifications

Other Specifications

Circuit Specifications

Input Signals Input Mode Photocoupler Input, Input Resistance: 220 Ω, Input current 7~20 mA
Photocoupler "ON" condition: +4.5~5 V, Photocoupler "OFF" condition: 0 to +1 V (voltage between terminals)
CW Pulse Signal
(Pulse signal)		 CW direction operation command pulse signal (operation command pulse signal when 1-pulse input mode)
Pulse width 5 μs min., rise/fall time 2 μs max., pulse duty 50 % max.
When the pulse input is turned from "ON" to "OFF," the motor rotates 1 step.
Maximum input pulse frequency 20 kHz (at 50 % pulse duty) Negative logic pulse input
CCW Pulse Signal
(Rotation direction signal)		 CCW direction operation command pulse signal (rotation direction signal when in 1-pulse input mode, photocoupler "OFF": CCW, photocoupler "ON": CW)
Pulse width 5 μs min., rise/fall time 2 μs max., pulse duty 50 % max.
When the pulse input is turned from "ON" to "OFF," the motor rotates 1 step.
Maximum input pulse frequency 20 kHz (at 50 % pulse duty) Negative logic pulse input
All Windings Off Signal When the photocoupler is "ON," the output current to the motor is turned "OFF," and the motor shaft can be turned by external force.
When the photocoupler is "OFF," output power supply to the motor is turned "ON."
Output Signals Output Mode Photocoupler and open-collector output (emitter common)
External Use Conditions: 24 VDC max., 10 mA max.
Excitation Timing Signal This signal is output when the excitation sequence is step "0." (Photocoupler "ON")
At Full Step: Output once every 4 pulses. At Half Step: Output once every 8 pulses
Overheat Signal Outputs when the temperature of the driver heat sink rises to approx. 90 °C. (photocoupler "ON" or "OFF," automatic reset at 90 °C max.).
Automatic all windings off function stops the motor.
The output logic of the photocoupler can be switched using the overheat output logic switching setting.
Function Automatic current cutback, automatic all windings off, step angle switching, pulse input mode switching, overheat output logic switching
Display (LED) Power supply input, CW input pulse signal/CCW input pulse signal/rotation direction input signal, output current, off signal output, excitation timing signal output, overheating output signal
Cooling Method Natural cooling method

General Specifications

Specifications Motor Driver
Insulation Class Class B (130 °C) -
Insulation Resistance Under normal ambient temperature and humidity, no abnormalities were observed even if 1.0 kV at 50 Hz or 60 Hz is applied between the windings and the case of the motor for 1 minute.

In normal ambient temperature and humidity, the value measured by a 500 VDC megger as follows is 100 MΩ min.

  • Case - Power supply input terminal
  • Case - Signal I/O output terminals
  • Power supply input terminal - Signal I/O terminal
Dielectric Strength Under normal ambient temperature and humidity, no abnormalities were observed even if 1.0 kV at 50 Hz or 60 Hz is applied between the windings and the case of the motor for 1 minute.
(UMK24□ is 0.5 kV)

At normal ambient temperature and humidity, no abnormalities are observed when the following are applied for 1 minute.

  • Case - Power supply input terminal 1.0 kVAC, 50 Hz or 60 Hz
  • Case - Signal I/O output terminals 1.0 kVAC, 50 Hz or 60 Hz
  • Power supply input terminal - Signal I/O terminal 1.0 kVAC, 50 Hz and 60 Hz
Operating Environment
(when operating)		 Ambient Temperature -10~+50 °C (Non-freezing) 0~+40 °C (Non-freezing)
Ambient Humidity 85 % max. (Non-condensing)
Atmosphere No corrosive gases or dust. No exposure to water, oil or other liquids.
Temperature Rise 2-phase excitation at rated voltage, winding temperature rise of 80 °C max. at standstill
(Resistance change method)		 -
Stop position accuracy*1 ±3 minutes (±0.05˚) -
Shaft Runout 0.05 T.I.R. (mm)*4 -
Radial Play*2 0.025 mm Max. (Load 5 N) -
Axial Play*3 0.075 mm Max. (Load 10 N) -
Concentricity of Installation Pilot to the Shaft
 		 0.075 T.I.R. (mm)*4 -
Perpendicularity of mounting surface to the shaft
 		 0.075 T.I.R. (mm)*4 -
*1
This is the value at full step and no load (Varies depending on the size of the load).
*2
Radial Play: Displacement in shaft position in the radial direction when a 5 N load is applied perpendicular to the tip of the motor shaft.
*3
Axial Play: Displacement in shaft position in the axial direction when a 10 N load is applied to the motor shaft in the axial direction.
*4
T.I.R. (Total Indicator Reading): The total dial gauge reading when the measurement section is rotated 1 revolution centered on the reference axis center.

Note

  • Do not measure insulation resistance or perform a dielectric strength test while the motor and driver are connected.

Permissible Radial Load and Permissible Axial Load

Unit: N
Type Motor Frame Size Motor Product Name Gear Ratio Permissible Radial Load Permissible Axial Load
Distance From Shaft End [mm]
0 5 10 15 20
High-Torque Type 28 mm PK223, PK224, PK225, PK523, PK525 - 25 34 52 - - Less than or equal to motor weight
35 mm PK233, PK235 20 25 34 52 -
42 mm PK244, PK246, PK544, PK546 20 25 34 52 -
56.4 mm PK264, PK266, PK268 61 73 90 110 160
60 mm PK264, PK266, PK267, PK269 50 60 75 100 150
High-Torque and High-Efficiency Type 42 mm PKE243, PKE244, PKE245 20 25 34 52 -
High-Resolution Type

High-Resolution Type
With Electromagnetic Brake		 28 mm PK523, PK524, PK525 25 34 52 - -
42 mm PK243, PK244, PK245, PK544, PK546 20 25 34 52 -
56.4 mm PK264, PK266, PK268 54 67 89 130 -
60 mm PK564, PK566, PK569 90 100 130 180 270
Standard Type

Standard Type
Terminal Box Type

Standard Type
With Electromagnetic Brake		 42 mm PK243, PK244, PK245, PK543, PK544, PK545 20 25 34 52 -
50 mm PK256, PK258 54 67 89 130 -
56.4 mm PK264, PK266, PK268 54 67 89 130 -
60 mm PK564, PK566, PK569 63 75 95 130 190
85 mm PK296, PK299, PK2913, PK596, PK599, PK5913 260 290 340 390 480
SH Geared Type 28 mm PK223 7.2, 9, 10, 18, 36 15 17 20 23 - 10
42 mm PK243 3.6, 7.2, 9, 10, 18, 36, 50, 100 10 15 20 30 - 15
60 mm PK264 3.6, 7.2, 9, 10 30 40 50 60 70 30
18, 36, 50, 100 80 100 120 140 160
90 mm PK296 3.6, 7.2, 9, 10, 18, 36 220 250 300 350 400 100
TH Geared Type 28 mm PK523 7.2, 10, 20, 30 15 17 20 23 - 10
42 mm PK543 3.6, 7.2, 10, 20, 30 10 14 20 30 - 15
60 mm PK564 70 80 100 120 150 40
90 mm PK596 220 250 300 350 400 100
PS Geared Type 22 mm PK513 4, 16 20 30 - - - 20
28 mm PK523 5, 7.2, 10 45 60 80 100 - 20
42 mm PK545 5, 7.2, 10 73 84 100 123 - 50
PK543 25, 36, 50 109 127 150 184 -
60 mm PK566 5 200 220 250 280 320 100
PK564 7.2, 10 250 270 300 340 390
25, 36, 50 330 360 400 450 520
90 mm PK599 5, 7.2, 10 480 540 600 680 790 300
PK596 25 850 940 1,050 1,190 1,380
36 930 1,030 1,150 1,310 1,520
50 1,050 1,160 1,300 1,480 1,710
PN Geared Type 28 mm PK523 5, 7.2, 10 45 60 80 100 - 20
42 mm PK544 5, 7.2, 10 100 120 150 190 - 100
60 mm PK566 5 200 220 250 280 320
7.2, 10 250 270 300 340 390
PK564 25, 36, 50 330 360 400 450 520
90 mm PK599 5 480 520 550 580 620 300
7.2, 10 480 540 600 680 790
PK596 25 850 940 1,050 1,110 1,190
36 930 1,030 1,150 1,220 1,300
50 1,050 1,160 1,300 1,380 1,490
Harmonic Geared Type 20 mm PK513 50, 100 50 75 - - - 60
30 mm PK523 110 135 175 250 - 140
42 mm PK543 180 220 270 360 510 220
60 mm PK564 320 370 440 550 720 450
90 mm PK596 1,090 1,150 1,230 1,310 1,410 1,300

System Configuration

System Configuration

close