选型指南
| 型号 Mode | 三相步进驱动器SCD-2272R |
| 输入电压 Power Supply | 110~245VAC |
| 输出电流 Output current | 1.2~7.2A |
| 控制功能 Control Modes | 脉冲+方向 |
| 细分 Subdivisions | 400~60000 |
| 控制信号接口电平 Control Signal Voltage | 5V和24VDC独立 |
| 机械尺寸 Domensions | 146*204*78mm |
工作电流设定(SW1~SW3）
| 峰值 | SW1 | SW2 | SW3 | SW4 |
| 1.2A | OFF | OFF | OFF | OFF |
| 1.5A | OFF | OFF | OFF | ON |
| 2.0A | OFF | OFF | ON | OFF |
| 2.3A | OFF | OFF | ON | ON |
| 2.5A | OFF | ON | OFF | OFF |
| 3.0A | OFF | ON | OFF | ON |
| 3.2A | OFF | ON | ON | OFF |
| 3.6A | OFF | ON | ON | ON |
| 4.0A | ON | OFF | OFF | OFF |
| 4.5A | ON | OFF | OFF | ON |
| 5.0A | ON | OFF | ON | OFF |
| 5.3A | ON | OFF | ON | ON |
| 5.8A | ON | ON | OFF | OFF |
| 6.2A | ON | ON | OFF | ON |
| 6.5A | ON | ON | ON | OFF |
| 7.2A | ON | ON | ON | ON |
SW9 SW10 开关设置
| 功能 | 开关 | 状态 | 结果 |
| 单双脉冲设置 | SW9 | OFF | 单脉冲 |
| ON | 双脉冲 | ||
| 自检设置 | SW10 | OFF | 自检关闭 |
| ON | 自检开启（速度30RPM） |
PWR:电源指示灯，表示驱动器工作电源正常。若驱动器电源异常，该灯不亮或者闪烁。
ALM:故障指示灯，驱动器上电时，自检程序会将ALM灯点亮0.5秒。正常工作该灯不亮。
| 灯名 | 闪烁方式 | 故障说明 | 解决方法 |
| PWR灯 | 长亮 | 驱动器正常工作 |
|
| ALM 灯 | 长亮 | 过流过压欠压报警 | 是否短路/错相等 |
细分设定（SW5~SW8）
| 细分 | SW5 | SW6 | SW7 | SW8 |
| 400 | ON | ON | ON | ON |
| 500 | OFF | ON | ON | ON |
| 600 | ON | OFF | ON | ON |
| 800 | OFF | OFF | ON | ON |
| 1000 | ON | ON | OFF | ON |
| 1200 | OFF | ON | OFF | ON |
| 2000 | ON | OFF | OFF | ON |
| 3000 | OFF | OFF | OFF | ON |
| 4000 | ON | ON | ON | OFF |
| 5000 | OFF | ON | ON | OFF |
| 6000 | ON | OFF | ON | OFF |
| 10000 | OFF | OFF | ON | OFF |
| 12000 | ON | ON | OFF | OFF |
| 20000 | OFF | ON | OFF | OFF |
| 30000 | ON | OFF | OFF | OFF |
| 60000 | OFF | OFF | OFF | OFF |
注意事项：
1 不可带电插拔驱动器及电机端子。
2 为防止驱动器受干扰，建议信号线采用屏蔽电缆线，屏蔽层与地线短接。
指示灯引脚功能说明
| 标记符号 | 功能 | 注释 |
| PWR ALM | 故障及电压指示灯 | 详见报警代码表 |
| 5PUL+ | 5V脉冲正输入 | DC5V |
| PUL- | 脉冲负输入 | DC5~24V兼容 |
| 5DIR+ | 5V方向正输入 | DC5V |
| DIR- | 方向负输入 | DC5~24V兼容 |
| 5EAN+ | 5V使能正输入 | DC5V |
| EAN- | 使能负输入 | 不用时悬空 |
| RDY+ | 准备好信号正输出 | DC5~24V兼容 |
| RDY- | 准备好信号负输出 | 不用时悬空 |
| 24PUL+ | 24V脉冲信号正输入 | DC24V |
| 24DIR+ | 24V方向信号正输入 | DC24V |
| 24ENA+ | 24V使能信号正输入 | DC24V |
| N | 悬空 | 悬空 |
| ˜AC | 电源正极 | 110˜245VAC |
| ~AC | 电源负极 | 110˜245VAC |
外形尺寸图（单位：mm）
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