DM542 Digital Stepper Motor Driver

Description DM542 is a two phase hybrid stepper motor driver, it designed to get the most out of your stepper motor. This driver can be used with motors requiring a current of up to 4.2A to run and features micro stepping up to 128th of a step. This driver is typically used with CNC machines, 3D printers, laser cutting machines and automation machines. The other handy feature about these drivers is that the control signals can be 5V to 24V, so it does not matter if your controller works with 5V, 12V or 24V signals, you can connect them directly to the driver. Specifications 2 Phase stepper driver Input Voltage: 20 – 50VDC Input current: <4A Micro stepping: 15 options up to 128 micro stepping Optional 50% idle current reduction setting Output current: 8 channel current setting Opto-isolated inputs Manufacturer product code: DM542 Micro step resolution is set by SW 5,6,7,8 of the DIP switch as shown in the following table: SW5 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF SW6 ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF SW7 ON ON ON OFF OFF OFF OFF ON ON ON ON OFF OFF OFF OFF SW8 ON ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF PULSE/REV 400 800 1600 3200 6400 12800 25600 1000 2000 4000 5000 8000 10000 20000 25000 Idle current setting SW4 is used for this purpose. OFF meaning that the standstill current is set to be half of the selected dynamic current and ON meaning that standstill is set to be the same as the selected dynamic current. Output current setting: The first three bits (SW 1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting Closest to your motor’s required current Output current (A) SW1 SW2 SW3 PEAK RMS ON ON ON 1.00 0.71 OFF ON ON 1.46 1.04 ON OFF ON 1.91 1.36 OFF OFF ON 2.37 1.69 ON ON OFF 2.84 2.03 OFF ON OFF 3.31 2.36 ON OFF OFF 3.76 2.69 OFF OFF OFF 4.20 3.00   Power connections (1) V、GND：Power Supply. V: Power supply, 18~50 VDC, Including voltage fluctuation and EMF voltage. The max current is 5A. (2) A A- B B-：Connecting 2 phase stepper motors. The driver & 2-phase hybrid stepping motor use four-wire connection, the motor can be connected in parallel & series bipolar. As for bipolar connection, it is higher performance with high-speed, but the current of driver is larger (it is 1.73 times more than the motor’s winding current). Connecting in series, the driver’s current is equal to the motor winding one. Mounting There should be 20mm of space all sides of the driver, it can’t be placed next to other heating devices and avoid dust, oil, mist, corrosive gas, humidity and strong vibration areas. Physical Dimensions: Adjustment of troubleshooting 1) The status on light’s indication PWR: green, normal work light. ALM: red, failure light, the motor with phase short-circuit, overvoltage and under-voltage protection. 2) Trouble shooting Alarm indicator Reasons Measures LED off turn Wrong connection for power Check wiring of power Low-voltages for power Enlarge voltage of power Motor doesn’t run, without holding torque Wrong connection of stepper motor Correct its wiring RESET signal is effective when offline Make RESET ineffective Motor doesn’t run, but maintains holding torque Without input pulse signal Adjust PMW & signal level Motor runs wrong direction Wrong wires’ connection Change connection for any of 2 wires Wrong input direction signal Change direction setting Motor’s holding torque is too small Too small relative to current setting Correct rated current setting Acceleration is too fast Reduce the acceleration Motor stalls Rule out mechanical failure Driver does not match with the motor Change a suitable driver   Packing List: 1 x DM542 Digital Stepper Motor Driver