WPM Stepper Motor & Gear
Geared motor specification
Scroll Table
| Geared motor code | EA |
|---|---|
| Configuration | Hybrid stepper motor & 1:14 Gear ratio |
| Number of phases and motor type | 2 phase/BI polar |
| Rated voltage | 4.48V |
| Rated current | 0.56A/Phase |
| Step angle | 0.0643° (Half step)/0.0323° (1/4 micro step) |
| RPM | 1 to 150rpm |
| Duty ratio | Max. 50% |
| Winding resistance | 8.0Ω±10% |
| Inductance | 7.1mH |
| Motor Insulation class | B |
| Motor rated temperature | less than 80°C (176°) |
| Geared motor life *1 | 5,000hr (Geared motor) *Not a guaranteed value. |
<1-2P Drive Method>
Scroll Table
| F-Low(Initial speed) | 500Hz (pps) |
|---|---|
| F-Hight(Operetion speed) | over 187Hz (pps) use Max: 14000Hz (pps) |
| Acceleration/Deceleration Time |
The given value from 0.1 to 0.5s or 1.0s |
| Operetion current |
Any value below the Maximum rating. |
| Rating rotation | EA motor with 1: 14gear 【0～150rpm ⇒ 0～14000Hz (1-2P)】 |
*When the Vibration is noticeable at lower rpm operation, micro step operation is recommended.
<1-2P Drive Method>
| F-Low(Initial speed) | 500Hz (pps) |
| F-Hight(Operetion speed) | over 187Hz (pps) use Max: 14000Hz (pps) |
| Acceleration/Deceleration Time |
The given value from 0.1 to 0.5s or 1.0s (When the Pump load is high, set the acceleratioin time longer.) |
| Operetion current |
Any value below the Maximum rating. EA motor: 0.56A |
| Rating rotation |
EA motor with 1: 14gear 【0～150rpm ⇒ 0～14000Hz (1-2P)】 |
The characteristic of our Peristaltic Pump products is an initial hight torque value. It's about 2 or 3 times higher compared to the torque required to maintain a constant velocity once the tube has conformed to the shape of the roller.
When you have a step-motor driven by a high frequency, it is necessary to apply the frequency described in above.
In deceleration, the frequency can be reduced gradually as well as in acceleration or within being cut off suddenly.
One point advice
If Pump load is high and rotor does not work, please try to apply 10-20% higher current than rated current of motor during the acceleration of trapezoidal drive above. Once Pump reaches at the constant speed, please set it back to the rated current.
Pump tube type: Tube size (inner diameter)
(Selectable according to the tube material)
Scroll Table
| Model name | 2 | 4 | 2 | 4 | 2 |
|---|---|---|---|---|---|
| Inner diameter | 1mm | 1.6mm (1/16”) |
2mm | 2.5mm | 3mm |
| Outside diameter | 3mm | 3.2mm (1/8”) |
4mm | 4.5mm | 5mm |
| Available tube material | S / P / W | P / F | S / P / W | P | S / P / W |
Dimensions (unit: mm)
Motor wiring diagrams
