CACR-SR03AD1KR-Y110
CACR-SR stands for discontinued vintage analog SERVOPACK platform designed exclusively for Yasnac VS series CNC control system.
03 indicates rated output power of 300W (0.3kW).
A represents standard main control PCB layout.
D means upgraded power circuit with enhanced instantaneous overload capability compared with AB and AC variants.
1 refers to differential line-driver pulse train input for position closed-loop control.
K is dedicated feedback circuit for 4000PPR incremental encoder; R denotes standard metal base and regular enclosure structure.
-Y110 is exclusive OEM customized specification marked by factory lock-in parameters and unique CN1 pin definition. It cannot be directly interchanged with standard CACR-SR03AD1KR or Y101 customized version due to different I/O assignment and preset parameters.
Description
1. Model Code Explanation
CACR-SR stands for discontinued vintage analog SERVOPACK platform designed exclusively for Yasnac VS series CNC control system.03 indicates rated output power of 300W (0.3kW).A represents standard main control PCB layout.D means upgraded power circuit with enhanced instantaneous overload capability compared with AB and AC variants.1 refers to differential line-driver pulse train input for position closed-loop control.K is dedicated feedback circuit for 4000PPR incremental encoder; R denotes standard metal base and regular enclosure structure.-Y110 is exclusive OEM customized specification marked by factory lock-in parameters and unique CN1 pin definition. It cannot be directly interchanged with standard CACR-SR03AD1KR or Y101 customized version due to different I/O assignment and preset parameters.
2. Electrical Parameters
The unit accepts single-phase or three-phase AC200V~230V input at 50/60Hz. Continuous rated output current is 3.0A while peak overload current is 8.5A. It is developed to pair with Yaskawa USAM-03 and USAF-03 300W servo motors equipped with 4000PPR incremental encoders; motors with standard 1500PPR encoders are not compatible under original factory setting. Three closed-loop control including current loop, speed loop and position loop is adopted, differential pulse command works as default input and partial analog speed command function is disabled by Y110 factory customization.
3. Terminal and Connector Information
Terminals R and S are used for main AC power input; U, V and W connect to three-phase windings of matched servo motor. Extra spare terminals are reserved for external dynamic braking resistor installation. CN1 is a 50-pin control connector with Y110 exclusive customized pinout for servo enable, ready feedback, fault alarm output and CNC interlock signals, whose wiring definition differs entirely from standard AD1KR and Y101 version. CN2 is a 20-pin dedicated encoder connector specially configured for 4000PPR encoder, which cannot connect to cables for 1500PPR standard encoder.
4. Environmental and Mechanical Conditions
Operating ambient temperature ranges from 0℃ to +55℃, storage temperature varies between -20℃ and +60℃. Working relative humidity shall not exceed 95% without condensation and maximum permitted installation altitude is 1000 meters above sea level. Protection class is IP20 and installation is limited inside closed electrical cabinet only. Net weight is around 3.0kg with natural convection cooling structure.
5. Unique Customized Characteristics of Y110
All core parameters including loop gain and electronic gear ratio are write-locked at factory and cannot be adjusted via front panel buttons, only a few auxiliary parameters are available for minor modification. I/O logic such as enable trigger level and fault output definition is tailor-made for designated OEM machine tool and inconsistent with Y101 variant. Front panel jog test function and free switching between different command modes are restricted by original factory firmware configuration. This servo amplifier is originally assembled on specific customized Yasnac VS-800 CNC lathes and small machining centers for feed axis driving.
6. Protection Functions and Fault Codes
Complete protection covers overcurrent, overvoltage, undervoltage, continuous overload, overheat and encoder disconnection. Code 1 means overcurrent failure; Code 2 stands for abnormal input power supply; Code A indicates encoder open-circuit; Code F refers to internal overheat protection; Code C represents main control board malfunction. After removing fault causes, cut off input power for more than 30 seconds to complete fault reset before restarting equipment.
7. Replacement Guidance
Only identical CACR-SR03AD1KR-Y110 can achieve direct plug-and-play replacement. Standard non-Y AD1KR or Y101 customized unit cannot substitute directly; full CN1 rewiring and comprehensive parameter reprogramming are compulsory if alternative replacement is needed.
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