I. Model Analysis (CACR-SR02AB2ER)

CACR-SR: Yaskawa VS-800 series servo unit (old R series)

02: 0.2kW (200W)

AB: Installation specification / Current rating

2ER: Control firmware version (exclusive to ER, 2nd generation)

Type: AC Servo Drive, compatible with Yaskawa USAREM/USACEM series motors

II. Core Electrical Parameters • Input Power Supply: Three-phase AC 200V ±10%, 50/60Hz; Control Circuit Single-phase AC 200~230V. • Output Power: 0.2kW (200W). • Rated Output Current: 2.5A. • Maximum Output Current: 7.5A (300% Overload). • Encoder Compatibility: Incremental 1000/1500 ppr (optional absolute value). • Control Mode: Speed / Position / Torque Control. • Response Frequency: Approximately 500Hz. • Protective Functions: Overcurrent, Overvoltage, Undervoltage, Overheat, Encoder Abnormality, Overload. • Cooling Method: Self-cooling (without fan). • Environment: 0–45℃, Humidity ≤90% (no condensation).  III. Interfaces and Terminals (CN1/CN2 / Main Circuit) Main Circuit Terminals (R/S/T/U/V/W) • R/S/T: Three-phase 200V Input. • U/V/W: Servo Motor Output. • ⊕/⊖: DC Bus (can be connected to braking resistor).  Control Interface CN1 (50-pin) • Instruction Input: ±10V Speed Command, Pulse Sequence (Position). • Output Signal: Servo Ready, Alarm, Position Completion, Speed Reached. • Power Supply: +24V (External), 0V.  Encoder Interface CN2 (20-pin) • Compatibility: Yaskawa Incremental Encoder (A/B/Z Phases, +5V Power Supply). • Pulses: 1000/1500ppr (parameters can be set).  IV. Panel Operation and Parameters (Common to the Series) Panel Display • 1-digit LCD: Status / Alarm Code (e.g. 1 = Overcurrent, 2 = Overvoltage, 3 = Undervoltage, 4 = Overheat). • Keys: MODE (Mode), SET (Confirm), ↑/↓ (Increase/Decrease).  Common Parameters (Cn‑xx) • Cn‑01: Motor Type Selection (0 = Standard, 1 = Custom). • Cn‑02: Encoder Pulse Count (1000/1500). • Cn‑03: Speed Loop Gain (Default 50, Range 10–200). • Cn‑04: Position Loop Gain (Default 30, Range 10–100). • Cn‑05: Overload Protection Level (Default 150%, 100%–300%). • Cn‑06: Braking Resistor Resistance (Default None, Requires External Connection).  Basic Operating Steps 1. Wiring: Main Circuit R/S/T Connect 200V, U/V/W Connect Motor, CN2 Connect Encoder, CN1 Connect Control Signal. 2. Power On: LCD Displays "0" (Normal). 3. Parameter Setting: ◦ Press MODE to enter Parameter Mode → Select Cn‑02 → SET → ↑/↓ Set to 1000/1500 → SET Save. ◦ Press MODE to return to Running Mode.   4. Operation: External Speed/Position Commands, Motor Runs; Check LCD Code for Alarms.