Mitsubishi Universal model Redundant Power Supply Module Q172CPUN
Q172CPUN Description
The Q172CPUN is a high-performance motion control CPU module for Mitsubishi Electric’s MELSEC-Q Series PLC system, designed for multi-axis servo motion control in industrial automation. It integrates independent motion processing and PLC logic control, supporting up to 8 axes of high-precision servo control via Mitsubishi’s SSCNET (Servo System Controller Network) high-speed serial bus. Built for multi-CPU configurations, it operates alongside standard Q Series PLC CPUs to separate motion and sequence control, delivering synchronized, high-speed positioning for complex machinery. It supports Motion SFC programming, advanced interpolation, and real-time monitoring, and is compatible with Q Series I/O, analog, and special function modules for flexible system expansion. Note: This model is discontinued (replaced by Q172DSCPU), with repair support ending September 2025.
Q172CPUN Key Features
- 8-Axis High-Speed Motion Control: Up to 8 servo axes via SSCNET; 0.88 ms control cycle for 1–4 axes, 1.77 ms for 5–8 axes, enabling high-precision positioning and synchronization.
- Independent Motion & PLC Architecture: Dedicated motion CPU, supports multi-CPU systems (up to 4 CPUs) to separate motion and sequence control, optimizing system performance and response.
- Advanced Interpolation & Control Modes: Supports linear (up to 4 axes), circular (2 axes), helical (3 axes) interpolation; PTP, speed, speed-position switching, fixed-pitch feed, constant-speed, and synchronous control.
- SSCNET High-Speed Bus: Reliable high-speed serial connection to servo amplifiers, simplified wiring, real-time servo status monitoring, and noise immunity.
- Motion SFC Programming: 256 Motion SFC programs (max 64KB/program, 4094 steps), plus 4096 F/FS operation programs and 4096 G transition programs for flexible motion logic.
- Comprehensive Diagnostics & Monitoring: Built-in digital oscilloscope function for real-time tracking of position, speed, torque; LED status indicators for module health and axis faults.
- Flexible System Expansion: Compatible with Q Series I/O (QX/QY), analog (Q64AD/Q68DA), and motion modules (Q172LX, Q172EX, Q173PX); max 8192 I/O points.
- Industrial Robustness: Designed for harsh factory environments, with vibration/shock resistance, wide temperature range, and global safety certifications (UL, cUL, CE, RoHS, KC).
- Easy Programming & Configuration: Supports GX Works2/GX Developer software; CF card for program/data storage; direct USB/RS-232 connection for setup and monitoring.
Q172CPUN Materials & Applications
Materials
- Housing: Flame-retardant, high-strength engineering thermoplastic (UL94 V-0), impact-resistant, dust-proof, IP20 protection rating.
- Internal Circuitry: High-temperature FR-4 PCB with gold-plated contacts, ESD/EMI protection, stable under industrial electrical noise.
- Terminals: Nickel-plated brass screw terminals for secure, vibration-resistant field wiring; compatible with standard industrial wiring gauges.
- Connectors: Industrial-grade SSCNET and I/O connectors for reliable high-speed communication and signal transmission.
- Mounting Base: Reinforced plastic DIN-rail clip, compatible with 35 mm standard DIN rail for cabinet installation.
Typical Applications
- Machine Tools: CNC milling machines, lathes, grinding machines, drilling machines, multi-axis machining centers.
- Packaging Machinery: Form-fill-seal machines, labeling machines, wrapping machines, cartoners.
- Robotics & Assembly: Pick-and-place robots, assembly lines, semiconductor manufacturing equipment, electronic component insertion.
- Printing & Textile: Printing presses, textile weaving/knitting machines, winding machines, coating lines.
- Material Handling: Conveyor systems, palletizers, depalletizers, sorting machines, linear/rotary positioning stages.
- Automotive Manufacturing: Welding robots, assembly stations, press machines, parts transfer systems.
Q172CPUN Important Parameters
| Parameter |
Specification |
| Part Number |
Q172CPUN |
| Product Type |
MELSEC-Q Series Motion CPU Module (8-axis) |
| Max Controllable Axes |
8 axes (SSCNET interface) |
| Control Cycle Time |
0.88 ms (1–4 axes); 1.77 ms (5–8 axes) |
| Communication Interface |
SSCNET (1 channel, high-speed servo bus) |
| Supported Interpolation |
Linear (4 axes max), circular (2 axes), helical (3 axes) |
| Motion Control Modes |
PTP, speed, speed-position, fixed-pitch feed, constant-speed, synchronous control |
| Motion SFC Programs |
256 programs (No.0–255); max 64KB/program, 4094 steps/program |
| F/FS Operation Programs |
4096 (F/FS0–4095); max 64KB/program |
| G Transition Programs |
4096 (G0–4095) |
| Max I/O Points |
8192 points (X/Y) |
| Internal Power Consumption |
5 VDC, 1.14 A |
| Operating Temperature |
0°C to +55°C |
| Storage Temperature |
-20°C to +65°C |
| Relative Humidity |
5–95% RH (non-condensing) |
| Vibration Resistance |
0.5 mm (10–57 Hz); 4.9 m/s² (57–150 Hz) |
| Shock Resistance |
147 m/s² (15G), 11 ms half-sine |
| Protection Rating |
IP20 |
| Dimensions (W×H×D) |
27.4 × 98 × 114.3 mm |
| Weight |
Approx. 0.22 kg |
| Mounting |
35 mm standard DIN rail |
| Certifications |
UL, cUL, CE (EMC), CE (RoHS), KC (EMC) |
| Status |
Discontinued (Sep 2018); replacement: Q172DSCPU |
| Programming Software |
GX Works2, GX Developer |
| Memory |
CF card slot for program/data storage |
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