42 Stepper Motor Micro Controller
- Models: JBT-AM/QBT-M2/JBT-AP/JBT-AT
- Maximum channel quantity:
- Reference flow rate:
■Stepper motor micro drive controller, small size of 42×42×18mm;
â– Can be mounted on 42 type stepper motor or work independently;
â– Function of rising current when starting, which is beneficial to prevent the start blockage and reduce the heat;
â– Provide 4 kinds of control modes including voltage, pulse, PWM and 485 communication;
â– Housing of aluminum alloy castings for durability and heat dissipation.
42 stepper motor micro driver controller, with its compact design of 42×42×18mm, is the ideal choice for precise control. It can be seamlessly installed on 42 stepper motors or operated independently, providing great flexibility. Its unique starting current boost function effectively prevents motor stalling during startup, reducing the risk of overheating, and ensuring smooth operation.
The controller has four control modes: voltage, pulse, PWM, and 485 communication, which meet various control needs. The sturdy aluminum alloy housing ensures durability and excellent heat dissipation, allowing it to operate continuously and stably in harsh environments.

Product Parameters
| Product Parameters | ||||
| Product Model | JBT-AM | QBT-M2 | JBT-AP | JBT-AT |
| Speed range | 0-600rpm | 0-600rpm | 0-600rpm | 0-600rpm |
| Power | ≤15W | ≤15W(Supply current≤0.6A) | ||
| Voltage | DC 12~36V(Recommended power supply DC24V,2A) | DC 24V,2A | ||
| Functions |  Start/stop,up/down speed and forward/reverse rotation |  Start/stop,forward/reverse rotation,built-in potentiometer to adjust current |  Start/stop,forward/reverse rotation,external potentiometer and PWM pulse signal adjustment speed | Control the speed, start and stop and forward and reverse through MODBUS data |
| Motor Type | 42 Stepper Motor | |||
| Cooling Mode | Free cooling | |||
| Working Environment | -40℃~+60℃ | |||
| Environment Humidity | Relative humidity less than 80%, no condensation, no frosting | |||
| Work Place | Try to avoid dust, smoke and corrosive gases | |||




