1. Model Code Definition

• CACR: Yasnac VS800 full digital AC servo amplifier for CNC machine tools

• SR: Dual control mode: ±10VDC analog speed/torque + differential line-driver pulse position command, selectable via internal parameter

• 12: Rated power 1.2kW, 200VAC class; continuous rated output current:11.7Arms

• T: OEM customized main PCB (non-standard universal circuit board)

• Z: Fixed CN1 I/O assignment; core application parameters locked by factory firmware

• 6: Preloaded factory parameter group No.6 with partial customized hardware layout

• SF: Dedicated encoder circuit exclusively matched to Yaskawa F-series servo motors, unique CN2 pin definition

• -E: Export Version: Complies with IEC international safety standards, overseas customized firmware & circuit design for export equipment, different from domestic standard CACR-SR12TZ6SF

2. Electrical Ratings

• Input Power: 3-phase AC200~230V, allowable fluctuation: -15%~+10%, 50/60Hz

• Overload Capacity: 150% rated current for continuous 60s; 300% peak overload within 3s for startup

• DC Bus Voltage: Nominal DC280V~DC320V; Terminals P & BN reserved for external regenerative braking resistor

• Drive Type: IGBT sine-wave PWM modulation, max output frequency:300Hz

• Net Weight: Approx.3.6kg; Enclosure protection: IP20 (cabinet vertical mounting only)

3. Environmental & Installation Conditions (E-version Export Standard)

• Operating Ambient Temp: 0℃ ~ +55℃; Storage Temp: -20℃ ~ +70℃

• Ambient Humidity: 5%~80%RH, non-condensing required

• Altitude Derating: Derate output power when installed above 1000m altitude

• Vibration Resistance: 10~55Hz, single amplitude 0.5mm, meets EU industrial vibration specification

4. Control Performance & Functional Restriction

1. Speed adjustment ratio up to 1:5000; full-load speed fluctuation ≤±0.01%; built-in digital notch filter for mechanical resonance suppression

2. Dual command input: analog ±10VDC speed reference + differential pulse position reference, switch via parameter setting

3. SF+Z+E Custom Locking Rule: Only gain-related parameters are editable; OEM core parameters are firmware-protected. Factory full parameter initialization is forbidden, which will cause machine runaway or abnormal operation

4. RS422 onboard communication port: Monitor real-time operating data & retrieve latest 10 fault records; locked customized parameters cannot be modified via communication cable; E-version communication protocol differs from domestic non-E model

5. Terminal & Connector Description

• R/S/T: 3-phase main AC power input terminals

• U/V/W: Servo motor 3-phase power output terminals

• P/BN: External regenerative brake resistor connection terminals

• CN1: Opto-coupler isolated digital I/O terminal block, fixed OEM signal definition (non-modifiable via parameter due to Z & E customization)

• CN2: Exclusive SF export-version encoder connector, pin assignment differs from domestic standard TZ6SF model

• Front 7-segment LED display: Real-time running status + fault code indication

6. Built-in Protection Functions

• Fault memory: Last 10 fault codes stored permanently (no data loss after power-off or fault reset); factory preset OEM parameters remain unchanged after fault reset

• Internal dynamic brake circuit integrated; external regenerative resistor must be wired between P & BN for heavy-duty frequent start-stop & emergency stop application

7. Replacement Notice

1. CACR-SR12TZ6SF-E cannot be directly interchanged with CACR-SR12TZ6SF (non-E domestic model)：Different CN2 encoder circuit, customized firmware, I/O definition and safety hardware, mismatched replacement triggers encoder alarm or motor out-of-control

2. Only identical part CACR-SR12TZ6SF-E supports plug-and-play replacement

8. Regular Maintenance Instructions

1. Pre-power-on check: Fasten all RST, UVW, CN1 & CN2 wiring terminals to avoid poor contact failure

2. Clean radiator fin dust every 3~6 months to prevent overheat shutdown from insufficient heat dissipation

3. Cut off main AC power and wait minimum 15 mins for full DC bus capacitor discharge before cabinet opening for maintenance (prevent electric shock hazard)

4. Never execute full factory parameter initialization on site

9. Common Fault Troubleshooting

1. Overheat Alarm: Radiator clogging / poor cabinet ventilation / continuous overload → Clean cooling system or reduce load

2. Encoder Fault Alarm: Loose CN2 plug / damaged feedback cable / mismatched SF dedicated motor → Check wiring & motor model matching

3. Deceleration Overvoltage: Install external brake resistor across P & BN terminals

4. Parameter Write Failure: Attempt to modify firmware-locked OEM core parameters (normal protection, no hardware breakdown)

5. Overload Alarm: Mechanical jamming / excessive payload → Inspect mechanical transmission structure

10. LED Fault Code List