1. PRODUCT OVERVIEW

Model Code Definition

• CACR：AC Servopack digital servo driver series

• SR：Universal 3-mode (Position/Speed/Torque) control platform

• 05：Rated output power 500W

• BY：Natural heat sink cooling, analog ±10V + pulse dual command input, standard CNC IO base circuit

• 1SF：Fixed special program, exclusive IO pin definition for Yasnac F-series CNC

• C：Custom OEM locked version, factory preset parameters non-editable normally

2. ELECTRICAL SPECIFICATIONS

Power Input Rating

• Main power: Single/3-phase AC200~230V, tolerance -15%~+10%, 50/60Hz

• Independent control power: Single-phase AC200~230V

• Continuous rated output current:4.2Arms; Peak output current:11.0Arms, 150% overload sustainable for 3s

• Drive mode: IGBT full sine-wave PWM three-phase output

Ambient & Cooling Condition

• Cooling type: Passive natural heat sink cooling (no internal fan, differ from BE fan-cool type)

• Operating ambient temp:0℃~55℃; Storage temperature:-20℃~85℃

• Humidity:20%~90%RH, non-condensing; Protection grade IP20, indoor cabinet installation only

Encoder Feedback

3. TERMINAL & CONNECTOR DESCRIPTION

Main Circuit Terminal Block

• R/S/T: Main AC input power terminals

• U/V/W: Three-phase output wiring to servo motor

• P/N: External dynamic brake resistor connection terminals

• PE: Protective earth terminal (mandatory grounding)

Control Connectors

1. CN1 (Control I/O, 1SF customized pinout for Yasnac CNC)

   Includes servo enable, alarm reset, forward/reverse overtravel inhibit, ±10V analog speed input, open-collector/line driver pulse position command input, fault relay dry contact output; IO wiring fixed matching original Yasnac machine schematic.

2. CN2 (Encoder feedback port): Connect motor encoder cable for rotor closed-loop position feedback.

4. INSTALLATION REQUIREMENT

1. Vertical DIN rail mounting inside electrical cabinet, reserve ≥6cm top/bottom clearance for passive heat dissipation (no fan, larger gap required vs fan-cooled BE model).

2. Separate high-power motor cable and low-signal encoder cable in different wiring duct to reduce EMI interference.

3. Avoid installation beside heat-generating components (transformer, contactor) to prevent overheating alarm.

5. PARAMETER SPECIFICATION (1SF-C Factory Locked Default for Yasnac CNC)

• Pn00 Control mode select: Factory preset=0 (Position mode for CNC feed axis); 1=Speed mode;2=Torque mode

• Pn01 Motor rated current: Pre-calibrated for matching Yasnac 0.5kW servo motor

• Pn10 Position loop proportional gain; Pn11 Speed loop P gain; Pn12 Speed loop I gain: Pre-optimized for Yasnac machine mechanical characteristic

• Pn20 Electronic gear ratio: Fixed value matching Yasnac screw pitch parameter

Important: Core customized parameters are factory locked on "-C" version, unauthorized parameter modification will cause axis positioning failure.

6. ALARM CODE & FAULT DIAGNOSIS

1. ALM1 Overcurrent: U/V/W motor cable short, motor winding damage, internal power module breakdown

2. ALM2 Overvoltage: Input voltage out of range or insufficient external regenerative resistor during rapid deceleration

3. ALM3 Overheat: Poor cabinet ventilation, ambient over-temperature or long-time continuous overload (passive cooling more sensitive to high ambient)

4. ALM4 Encoder error: CN2 loose plug, broken encoder cable or encoder hardware failure

5. Special Yasnac CNC communication alarm: Abnormal signal between driver and Yasnac host, check CN1 IO wiring consistency

7. SAFETY WARNINGS

1. Cut off main & control power, wait ≥10min for internal capacitor residual high voltage fully discharged before disassembling drive cover for maintenance.

2. Never hot-plug CN1/CN2 connectors under powered status to avoid control board burnout.

3. CACR-SR05BY1SF-C cannot be replaced with standard BY/BE non-1SF non-C servo drive on original Yasnac equipment.