K872 Open-Loop Stepper Drive
●Input voltage 24VDC～110VDC or 18VAC～80VAC
●Support IO speed control
●Continuous output maximum peak current 7.2A
●Input signal optocoupler isolation, compatible with 5V/24V signals
●Signal supports differential, common cathode, common anode
●Pulse response frequency up to 500k (200k by default)
●Automatic half-current lock to reduce heat generation
●Input enable signal, alarm output signal
●Overvoltage, undervoltage, overcurrent and other protection functions
●Loop parameter self-tuning function
●Smooth operation, low motor noise, small overshoot
Support IO speed control, support customized speed control.
Widely used in various small and medium-sized automation equipment and instruments, such as: electronic processing equipment, 3C non-standard automation equipment, medical testing equipment, textile sewing equipment, marking machines, cutting machines, terminal machines, wire stripping machines, CNC machine tools, logistics transmission, transfer equipment, etc.
K872 Electrical Specifications
Min |
Typical |
Max |
Unit |
|
Peak Current2.4 |
2.4 | - | 7.2 | A |
Power Input |
18 | 48/70 | 80 | Vdc |
Logic Input Current |
6 | 14 | 20 | mA |
Logic Input Voltage |
4.5 | 5 | 28 | Vdc |
Pulse Frequency |
0 | - | 200 | kHz |
Insulation Resistance |
50 | - | - | MΩ |
Output Port Voltage |
- | - | 24 | Vdc |
SW1-SW3: Current Setting Table
Peak |
RMS |
SW1 |
SW2 |
SW3 |
| 7.2 | 6 | ON | ON | ON |
| 6.52 | 5.43 | OFF | ON | ON |
| 5.83 | 4.86 | ON | OFF | ON |
| 5.14 | 4.28 | OFF | OFF | ON |
| 4.45 | 3.71 | ON | ON | OFF |
| 3.77 | 3.14 | OFF | ON | OFF |
| 3.08 | 2.57 | ON | OFF | OFF |
| 2.4 | 2 | OFF | OFF | OFF |
SW4: Function Setting
OFF: half lock current
ON: full lock current
SW5-SW8: Microstep and IO Speed Setting Table
Microstep |
SW5 |
SW6 |
SW7 |
SW8 |
IO speed |
| 200 | ON | ON | ON | ON | 50 |
| 400 | OFF | ON | ON | ON | 150 |
| 800 | ON | OFF | ON | ON | 250 |
| 1600 | OFF | OFF | ON | ON | 350 |
| 3200 | ON | ON | OFF | ON | 450 |
| 6400 | OFF | ON | OFF | ON | 550 |
| 12800 | ON | OFF | OFF | ON | 650 |
| 25600 | OFF | OFF | OFF | ON | 750 |
| 1000 | ON | ON | ON | OFF | 850 |
| 2000 | OFF | ON | ON | OFF | 950 |
| 5000 | ON | OFF | ON | OFF | 5 |
| 8000 | OFF | OFF | ON | OFF | 10 |
| 10000 | ON | ON | OFF | OFF | 20 |
| 20000 | OFF | ON | OFF | OFF | 30 |
| 3600 | ON | OFF | OFF | OFF | 40 |
| 7200 | OFF | OFF | OFF | OFF | 100 |
SW9: Pulse Type Setting
OFF: PU&DR
ON: CW&CCW
K872 Installation Dimension (Unit: mm)
