Key Features:
DC24V-48V Supply Voltage
H-Bridge, 2 Phase Bi-polar Micro-stepping Drive
Suitable for 2-phase, 4, 6 and 8 leads step motors
Output current selectable from 1.0 ~ 4.2A peak
Current reduction by 50% automatically, when motor standstill mode is enabled
Pulse Input frequency up to 200 kHz
Optically isolated differential TTL inputs for Pulse, Direction and Enable signal inputs
Selectable resolutions up to 25000 steps
Over Voltage, Coil to Coil and Coil to Ground short circuit protection.
Introduction
2H504 is a cost effective, high performance bi-polar two phase micro-stepping drive applying pure-sinusoidal current control technique. It is best suited for the applications that desired extreme low noise and heat. It operates well in an environment, where electricity supply experience instability and fluctuation.
The general pseudo-sinusoidal current control technology adopted by majority of the drive produced distorted sine wave, and current ripple, resulting in vibration, noise and motor heating. This results in motor degrading over time, reducing in motor performance and shortens the usage life.
With an automatic optimization speed control technique, the PowerStep series drive output is very stable, with almost zero vibration and noise, performing close to a servo system, allowing the motor to operate smoothly. That helps to fulfill a design requirement of low noise, low heat and high performance.
Specifications
| Parameters | Min | Typical | Max | Unit |
| Output Current (Peak) | 1.0 | – | 4.2 | Amps |
| Supply voltage | DC24V | 36 | 50 | VDC |
| Logic Input Current | 7 | 10 | 16 | mA |
| Pulse input frequency | 0 | – | 200 | KHz |
| Low Level Time | 2.5 | µsec |
| Cooling | Natural Cooling or Forced Convection | |
| Environment | Space | Avoid dust, oil frost andcorrosive gases |
| Ambient Temperature | 0°C－50°C | |
| Humidity | 40 －80%RH | |
| Vibration | 5.9m/s² Max | |
| Storage Temp. | -10°C －80°C | |
| Weight | Approx. 260 gram | |
Dimensions
Dimensions in mm
Current Setting
 Current Setting (A) |
SW1 | SW2 | SW3 |
| 1.00 | OFF | OFF | OFF |
| 1.46 | ON | OFF | OFF |
| 1.91 | OFF | ON | OFF |
| 2.37 | ON | ON | OFF |
| 2.84 | OFF | OFF | ON |
| 3.31 | ON | OFF | ON |
| 3.76 | OFF | ON | ON |
| 4.20 | ON | ON | ON |
Microstep Setting
| Step / Rev | SW5 | SW6 | SW7 | SW8 |
| 400 | OFF | ON | ON | ON |
| 800 | ON | OFF | ON | ON |
| 1600 | OFF | OFF | ON | ON |
| 3200 | ON | ON | OFF | ON |
| 6400 | OFF | ON | ON | ON |
| 12800 | ON | OFF | OFF | ON |
| 25600 | OFF | OFF | OFF | ON |
| 1000 | ON | ON | ON | OFF |
| 2000 | OFF | ON | ON | OFF |
| 4000 | ON | OFF | ON | OFF |
| 5000 | OFF | OFF | ON | OFF |
| 8000 | ON | ON | OFF | OFF |
| 10000 | OFF | ON | OFF | OFF |
| 20000 | ON | OFF | OFF | OFF |
| 25000 | OFF | OFF | OFF | OFF |
* SW4: ON=Full current, SW4 : OFF=Half current
P1 Pin Assignment
| Signal | Function and Descriptions |
| PLS+ | Pulse or Step InputTTL differential input with high-going pulse, 1 μs min width. For +5V or +24V operation,
a current limiting resistor had to be pull up or connected in series from the PLS+ to the VCC. |
| PLS- | |
| DIR+ | Direction InputLogic High = positive (CW) rotation—4.0 ~ 5.0VLogic Low = negative (CCW) rotation—0 ~ 0.5
VThe DIR signal must be stable for at least 5ms before the drive receives the first pulse. |
| DIR- | |
| ENA+ | Enable InputLogic High = Drive EnabledLogic Low = Drive DisabledThis input
, if left unconnected, is regconised as Logic High by the drive, and it will be enabled. |
| ENA- |
Wiring
