1. Basic Information

• AB：Analog speed command version（±10VDC analog speed input, no standard pulse position built-in by default）

• 1ER：OEM customized hardware & parameter version, exclusive for original Yasnac CNC machine tools, fixed factory preset parameters

  Production Status：Discontinued OEM model; only refurbished / used tested spare parts available, no original new stock

  Mounting：Plug-in backplane rack installation（special system baseboard, not DIN rail/wall mounted）

2. Electrical Parameters

• Operation Temp：0℃～50℃; Storage Temp：-20℃～70℃

• Humidity ≤80%RH, non-condensing; Max working altitude ≤1000m above sea level

  Connector Layout：

• CN1：Analog speed command, servo enable, fault reset, alarm digital IO terminal

• CN2：A/B/Z phase incremental encoder feedback port

3. Control Modes & Functions

1. Main control：±10VDC analog speed control（factory default for AB type）, optional pulse position control via parameter modification

2. Full digital closed-loop control, adjustable acceleration/deceleration time via internal parameters (Fn/Pn group parameters)

3. Complete protection functions：Overcurrent, overvoltage, undervoltage, overload, encoder break, overheat protection; drive shuts down power output automatically with alarm code displayed when fault occurs

4. Main Terminal Definition

• R/S/T：Main AC power input terminals

• U/V/W：3-phase output to connect servo motor

• P/B：External dynamic brake resistor connection terminals

5. Special Remark for 1ER Custom Version

6. Application Scope