CACR-SR05BZ1SS
June 04, 2026

CACR-SR05BZ1SS

CACR: Classic Yasnac VS800 full-digital AC SERVOPACK servo amplifier series (old Sigma R-series platform) SR: General-purpose triple-control servo unit, supports position/speed/torque mode switch via parameter setup 05: Rated matched motor power = 0.5kW (500W) standard power grade B: Main control PCB Revision B, standard internal power circuit layout Z: Built-in absolute encoder dedicated hardware + integrated internal dynamic brake; retains absolute position data after power cut, no mandatory homing after restart 1: Main power rating: 3-phase AC200~230V, 50/60Hz input specification S (1st S): CN2 feedback circuit for differential serial absolute encoder (multi-turn absolute PG, 2048/8192P/R standard) S (2nd S): Standard pulse-position command + universal standard I/O terminal definition (no customized analog-only F-type interface; core difference vs CACR-SR05BZ1SF)

Description

1. MODEL CODE DEFINITION

CACR: Classic Yasnac VS800 full-digital AC SERVOPACK servo amplifier series (old Sigma R-series platform)
SR: General-purpose triple-control servo unit, supports position/speed/torque mode switch via parameter setup
05: Rated matched motor power = 0.5kW (500W) standard power grade
B: Main control PCB Revision B, standard internal power circuit layout
Z: Built-in absolute encoder dedicated hardware + integrated internal dynamic brake; retains absolute position data after power cut, no mandatory homing after restart
1: Main power rating: 3-phase AC200~230V, 50/60Hz input specification
S (1st S): CN2 feedback circuit for differential serial absolute encoder (multi-turn absolute PG, 2048/8192P/R standard)
S (2nd S): Standard pulse-position command + universal standard I/O terminal definition (no customized analog-only F-type interface; core difference vs CACR-SR05BZ1SF)

2. ELECTRICAL SPECIFICATIONS

2.1 Power Rating

  • Main circuit input: 3Ø AC200~230V, allowable tolerance +10%/-15%, 50/60Hz

  • Control auxiliary power: Independent single-phase AC200~230V input

  • Rated continuous output: 0.5kW, continuous RMS output current = 3.2A; peak overload 9.6A (300% overload for max 3s)

  • DC bus nominal voltage: DC280~320V; P/N terminals reserved for external regenerative braking resistor for high-cycle deceleration loads

2.2 Ambient & Mechanical Data

  • Operating temperature: 0℃ ~ +55℃; storage temp: -20℃ ~ +70℃

  • Humidity: 5%~90%RH non-condensation; protection grade IP20 (cabinet installation only)

  • Mounting: vertical wall fixed installation; net weight ≈2.0kg; max working altitude ≤1000m

  • Vibration withstand: 10~55Hz, 0.5mm single amplitude

2.3 Control Performance

  • Control scheme: IGBT sine-wave PWM dual closed-loop (speed + position loop vector control)

  • Speed regulation range: 1:5000; steady-state speed accuracy ≤±0.01% full load

  • Position command input: 5V differential pulse (CW/CCW or Pulse+Dir), max input frequency 500kpps (S suffix core: prioritize digital pulse command instead of analog dominant of F model)

  • Feedback: Multi-turn serial absolute encoder (Z feature), power-off position memory without origin reset; compatible SGM/SGMF old-series Yaskawa absolute servo motor

  • Built-in notch filter to suppress mechanical resonance vibration

2.4 Full Protection Functions

Overcurrent, overvoltage, undervoltage, heatsink overheat, motor overload, absolute encoder cable break, regenerative overvoltage, main phase loss, CPU abnormal fault; fault codes displayed on front 7-segment LED display.

3. TERMINAL & CONNECTOR DESCRIPTION

3.1 Main Power Terminals

R/S/T: 3-phase AC main power input | U/V/W: Servo motor three-phase power output | P/N: External brake resistor spare terminals

3.2 Signal Connectors

CN1 (I/O terminal block): 8-channel optically isolated digital input, 6-channel relay isolated digital output; functions: Servo ON, forward/reverse overtravel limit, home input, E-stop, fault output, servo ready, alarm contact. Standard universal definition for pulse positioning system (SS standard I/O vs customized F-type analog I/O)
CN2 (PG port): Dedicated serial absolute encoder connector, 5V differential serial+A/B/Z hybrid feedback for multi-turn absolute PG motor (Z-code specification)
CN3: Front panel digital operator interface for parameter modification & status check

3.3 Command Interface Feature

  1. Primary command: Digital differential pulse position input (core of double-S suffix); secondary available analog ±6V speed / ±3V torque auxiliary input

  2. Onboard Yaskawa exclusive RS422 serial communication: Parameter upload/download, real-time status monitoring, historical fault record reading; optional expansion for Modbus-RTU networking

4. KEY PRODUCT FUNCTIONS

  1. Three control mode free switching: Position mode for precision fixed positioning; speed mode for constant-speed transmission; torque mode for tension winding; electronic gear ratio for multi-axis synchronous linkage

  2. Auto motor parameter identification: One-click self-tuning to measure motor resistance, inductance & rotor inertia, auto optimize loop gain to shorten on-site debugging

  3. Absolute position memory (Z feature): No mechanical homing after power outage, improves equipment operation efficiency

  4. Internal integrated dynamic brake circuit: Internal module absorbs regenerative energy during deceleration; external resistor only needed for frequent heavy-duty emergency stop

  5. Multi-segment gain setting: Separated low/high speed loop gain parameters for smooth low-speed running and rapid high-speed response; stores latest 10 fault codes for maintenance inquiry

5. APPLICATION SCENARIOS

Precision automation equipment requiring absolute position retention after power failure: Small CNC tapping machine, automatic component insertion machine, miniature gantry positioning platform, labeling equipment, small packaging cutting machinery, old Yasnac CNC machine auxiliary feed axis retrofit (VS800 original matching driver)

6. OPERATION & MAINTENANCE GUIDE

6.1 Pre-Power Check

Inspect all power cable, PG wiring and I/O harness for short circuit, loose terminal or wrong wiring; complete motor parameter matching and load gain tuning before trial run.

6.2 Daily Operation

Keep cabinet ventilation unblocked; prohibit continuous operation above +55℃ ambient temperature; avoid frequent repeated power ON/OFF within short interval.

6.3 Periodic Maintenance (3~6 months cycle)

Retighten terminal screws; inspect cable insulation aging; clean heatsink dust; cut main power and wait minimum 15min for DC bus capacitor full discharge before internal disassembly to prevent electric shock. Stop equipment immediately upon continuous fault alarm and check motor winding, wiring and mechanical stuck fault before restart.

7. COMMON FAULT TROUBLESHOOTING

  • Overheat alarm: Blocked heatsink, excessive cabinet temperature or long-term overload running

  • Encoder error alarm: Loose CN2 plug, damaged absolute encoder feedback cable

  • Overvoltage alarm: Frequent rapid deceleration under heavy load; install external brake resistor on P/N terminals


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