16-axis motion controller CPU module for Mitsubishi MELSEC-Q series, adopting a dual-CPU architecture (sequential CPU + motion CPU for parallel processing). It connects to servo amplifiers via the SSCNET III/H high-speed servo network, designed specifically for complex motion control applications.
- Model Code Explanation
| 코드 세그먼트 | 설명 |
| 큐 | MELSEC-Q Series PLC System |
| 172 | Series number for 16-axis motion controller |
| DS | Dual-CPU architecture (sequential + motion) + SSCNET III/H interface |
| CPU | Central Processing Unit module |
- Key Specifications
| 목 | Details |
| Controlled Axes | 최대 16 synchronous axes, expandable to 96 axes (with additional motion CPU modules) |
| Network Interface | SSCNET III/H (1 system), high-speed real-time communication |
| CPU Architecture | Dual-core high-performance RISC CPU, parallel sequential and motion control |
| Program Memory | 10 MB (motion program + user program) |
| Operation Cycle | Default 1 ms (adjustable) |
| Control Modes | Position / speed / torque control, electronic cam, electronic gear, linear / circular / helical / 3D spline interpolation, PTP control |
| I/O Interface | 8-point DC24V output (2A/point), 12 ms response time |
| Power Consumption | DC5V, 1.44에이 |
| 치수 | 120.5(H)×27.4(여)×120.3(디)mm, weight 0.38kg |
| Controllable Modules | Q172DLX, Q172DEX and other motion control modules |
- Direct Replacement Solutions
- Upgrades within Mitsubishi (Officially Recommended)
| Replacement Model | 특징 | Application |
| Q172DSCPU | Original model, replaces older models such as Q172CPUN / Q172HCPU | Maintenance of existing systems with minimal modifications |
| R16MTCPU (iQ‑R Series) | New‑generation 16‑axis motion controller, performance improved by 30%, compatible with all iQ‑R modules | Full system upgrade for higher performance and expandability |
| Q173DSCPU | 32‑axis version, otherwise same specifications as Q172DSCPU | Applications requiring up to 32 axes |
- Cross‑Brand Equivalent Replacements
| 상표 | Replacement Model | Key Matching Points |
| 지멘스 | SIMOTION D445‑2 DP/PN | 16‑axis motion control, 프로피버스 / 프로피넷, supports complex interpolation |
| Rockwell | Kinetix 5500 + Logix5380 | 16‑axis synchronous control, EtherNet/IP, integrated safety functions |
| 슈나이더 | Lexium 62 + M340 PLC | 16‑axis motion control, CANopen / EtherCAT, cost‑effective |
- 일반적인 응용 분야
- High‑precision multi‑axis synchronization: Electronic processing equipment, semiconductor manufacturing, printing & 포장 기계
- Complex trajectory control: Robots, CNC machine tools, laser cutting / welding equipment
- High‑speed positioning: Chip mounters, dispensers, precision assembly lines
- Electronic gear / cam applications: Textile machinery, label printing machines, metal processing equipment
- Automated production lines requiring parallel logic and motion control
- Notes
- 시스템 호환성: Must be used with a Q‑series PLC CPU (예를 들어, Q03UDVCPU) to form a dual‑CPU system
- Servo Amplifier Matching: Only supports Mitsubishi servo amplifiers with SSCNET III/H interface (예를 들어, MR‑J4 series)
- Expansion Limit: Max 16 servo amplifiers; add Q172DSCPU or upgrade to Q173DSCPU for more axes
- 프로그래밍 소프트웨어: GX Works2 / GX Works3, with dedicated motion control libraries
- Upgrade Suggestions: When migrating to iQ‑R series (R16MTCPU), check program compatibility and hardware interface differences
Q172DSCPU ↔ R16MTCPU Core Comparison + Configuration Guide
- Key Parameter Comparison
| 목 | Q172DSCPU | R16MTCPU |
| 시리즈 | Q Series Motion CPU | iQ‑R Series Motion CPU |
| Max Axes | 16 | 16 |
| Servo Network | SSCNET III/H | SSCNET III/H |
| Architecture | Dual CPU (sequential + motion) | Single CPU integrating logic + motion, higher performance |
| Program Capacity | 10MB | 32MB |
| Operation Cycle | Standard 1ms | Standard 0.5ms, up to 0.2ms |
| 프로그래밍 소프트웨어 | GX Works2 / Works3 | GX Works3 |
| 백플레인 버스 | Q Bus | iQ‑R High‑Speed Bus |
| 호환성 | Q‑series base units / modules only | iQ‑R series base units / modules only |
| Positioning | Mature, stable, spare‑part oriented | Latest generation, high speed & precision, preferred for new projects |
- System Configuration Recommendations
1) Legacy Equipment Maintenance / No Hardware Change → Q172DSCPU
Base Unit: Q35B / Q68B or other Q‑series bases
전원공급장치: Q61P / Q62P
Servo Match: MR‑J4‑WJ / JE‑C / J4‑B (SSCNET III/H)
Application: Direct replacement, repair, minor modification of existing Q‑series PLCs
2) New Equipment / System Upgrade → R16MTCPU
Base Unit: R38B / R64B
전원공급장치: R61P
CPU: R16MTCPU (integrated logic + motion, no extra CPU needed)
Servo Match: MR‑J4A‑B / J5‑B series
Application: High‑speed synchronization, multi‑axis interpolation, printing / packaging / machine tools / 로봇
- One‑Sentence Selection Guide
Keep cabinet, keep base, maintain old lines → use Q172DSCPU
New machines, faster & more stable, long‑term use → use R16MTCPU
접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지


















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