The driver parameter settings are configured via RS232 serial communication. The communication protocol is shown in the table below:
| Parameter Address | Parameter Name | Parameter Range | Default Parameter | Remarks |
|---|---|---|---|---|
| *0 | Operating current | 0-99 | 40 | Motor rated current * 10 |
| *1 | Closed-loop current percentage | 0-100 | 80 | |
| *2 | Reserved | |||
| *3 | Voltage monitoring | |||
| *4 | Pulse edge, 0: falling edge valid 1: rising edge valid |
0-1 | ||
| *5 | Pulse smoothing | |||
| *6-10 | Reserved | Refer to internal related documents for details | ||
| *11 | Reserved | |||
| *12 | Control mode | |||
| 0: Single pulse; 1: Dual pulse; 2: Internal speed mode |
0-2 | |||
| *13 | Tracking error limit | 0-99 | 40 | Error pulses = Set value * 100 |
| *14 | Current loop Kp | 0-99 | 40 | Spark Motor: STM5780C Recommended value: 40 STM8680C Recommended value: 25 STM86118C Recommended value: 50 |
| *15 | Position loop differential gain Kd | 0-99 | 10 | For factory setting only, modification is prohibited |
| *16 | Position loop feedforward gain Kvff | 0-100 | 30 | For factory setting only, modification is prohibited |
| *17 | Position loop proportional gain Kp | 0-300 | 50 | For factory setting only, modification is prohibited |
| *18 | Position loop integral gain Ki | 0-300 | 15 | For factory setting only, modification is prohibited |
Compatible motors: 86 series motors
RS232 Communication Interface:
| Terminal No. | Symbol | Name | Description |
|---|---|---|---|
| 1 | GND | Ground | |
| 2 | +5V | Power | For RS232 communication only |
| 3, 4, 5, 6 | NC | ||
| 7 | TXD | RS232 Transmit End | |
| 8 | RXD | RS232 Receive End |
RS232 Interface Pinout
Precautions
Input voltage must not exceed DC 80V;
The falling edge of the input pulse signal is valid; for rising edge control, internal driver parameters need to be set;
When the driver temperature exceeds 75°C, it stops working and the fault indicator ALM lights up. Once the temperature drops to 50°C, power must be reapplied to resume operation. If overheating protection is triggered, please install a heat sink;
If the overcurrent (load short circuit) fault indicator ALM lights up, please check the motor wiring and other short circuit faults. After resolving the issue, power must be reapplied to restore operation;
If the no-motor fault indicator ALM lights up, please check the motor wiring. After resolving the issue, power must be reapplied to restore operation.
