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HIMA HIQuad H51q series H51Q-HRS series safety control system unit
| Brand: HIMA HIMax |
| Item NO: H51Q-HRS |
| Effect: Safety control system unit |
| Condition: In stock, brand new/Used |
| Warranty: 365 days |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
HIMA HIQuad H51q series H51Q-HRS series safety control system unit
HIMA H51Q-HRS belongs to the HIQuad H51q series of safety PLC complete safety control systems, and is HIMA’s highly reliable Safety Instrumented System (SIS) hardware complete rack system. The entire system includes a secure CPU, power supply, communication module, IO slot backplane, and HRS represents the redundant secure rack version. H51Q-HRS is mainly used for industrial safety related interlocking protection, real-time collection of on-site process signals, and operation according to preset safety logic. When the process exceeds the limit or dangerous working conditions occur, it triggers emergency stop, closes valves, avoids major safety accidents such as explosions and leaks, ensures the safety of personnel, equipment, and production equipment, and meets functional safety requirements.

Product features
- Supports SIL3 level functional safety certification, meets the IEC61508 international functional safety standard, and is suitable for high-risk process protection scenarios.
- Adopting a dual redundant CPU architecture, the processor, power supply, and communication links can all be redundantly configured, and a single point of failure will not cause system shutdown, ensuring the continuous operation of the safety circuit.
- Modular rack design, allowing for free selection of analog and digital input/output modules, flexible expansion of IO channels, and adaptability to projects of different scales.
- Built in backplane fault diagnosis, real-time monitoring of module, power supply, communication, and line status, and quick fault location and alarm.
- It has multiple communication protocols and can be integrated with DCS and upper monitoring systems to achieve data exchange between security systems and basic control systems.
- Wide temperature and humidity adaptability, capable of long-term stable operation in harsh industrial control cabinet environments, resistant to vibration and electromagnetic interference.
- Safety programs are executed independently and physically isolated from ordinary control systems to prevent non safety programs from interfering with safety interlock actions.
- The hardware comes with a watchdog circuit, which automatically triggers a safety failure and directs to the safety side once the program runs away.
Usage scenarios
Suitable for emergency shutdown ESD, combustion management BMS, and pressure protection systems in process industries that require SIL3 safety level protection.
-Petrochemical industry: emergency shutdown interlock protection for refining units, chemical reactors, and storage tank areas
-Oil and gas industry: offshore platforms, natural gas processing plants, long-distance pipeline safety shutdown systems
-Power industry: Boiler furnace safety monitoring FSSS, turbine protection interlock
-Pharmaceutical industry: High risk reactor safety interlock
-Coal Chemical Industry: Safety Instrumented Systems for Gasification and Synthesis Plants


Main product range
- Control system (DCS/PLC/CNC): panel controller, HMI and human-machine interface, industrial PC, CPU processor module, communication module, analog/digital I/O module
- Drive and motion control: frequency converter, servo drive, servo motor, power module
- Robot spare parts: key spare parts such as robot control board, axis computer, servo unit, I/O module, etc
- State monitoring and safety system: vibration monitoring system, safety instrumented system (SIS), redundant controller
Application Industry
The products are widely used in various industrial fields such as metallurgy, oil and gas, petrochemicals, electricity, power transmission and distribution, water conservancy, water treatment and environmental protection, coal mining, aluminum industry, glass manufacturing, paper and printing, textile printing and dyeing, machinery manufacturing, electronics manufacturing, automobile manufacturing, plastic machinery, boiler heating, energy, etc.
HIMA HIQuad H51q series H51Q-HRS series safety control system unit


Main brand
| No. | Brand | Country/Region | Main Product Lines | Typical Series/Models |
| 1 | ABB | Switzerland | PLC/DCS Controllers, I/O Modules, Robot Spare Parts, Drive Systems | AC800PEC,AC800M, AC800F, AC31, 800xA, Bailey INFI 90, DSQC Robot Modules, Advant OCS, H&B Freelance |
| 2 | Bently Nevada | USA | Condition Monitoring Systems, Vibration Sensors, Proximitors | 3500 Monitoring System, 3300 Monitoring System, Eddy Current Probes, Proximitors |
| 3 | TRICONEX | USA | Safety Instrumented Systems (SIS), TMR Redundant Controllers | Tricon System Modules, Communication Modules, I/O Modules |
| 4 | Woodward | USA | Steam/Gas Turbine Control, Speed Governing Systems, Actuators | 505 Governor, ProTech, MicroNet, NetCon Series |
| 5 | FOXBORO | USA | DCS Systems, I/A Series Control Modules | I/A Series, FBM Modules, Controllers |
| 6 | WESTINGHOUSE | USA | DCS Systems, Ovation Controllers, Modules | Ovation System, WDPF Series |
| 7 | Motorola | USA | Industrial Communication Modules, Embedded Control Modules | MVME Series, VME Bus Modules |
| 8 | GE | USA | PLC, Excitation System Modules, CPU/Communication/Analog Modules | IS200/DS200 Excitation Cards, IC693/IC695/IC697/IC698/IC200/IC660/IC670 Series |
| 9 | YOKOGAWA | Japan | DCS Systems, CPU Modules, I/O Cards | CENTUM CS3000, CS1000, VP Series |
| 10 | HIMA | Germany | Safety Control Systems, SIL Safety Modules | H41q/H51q, HIMax, HIMatrix Series |
| 11 | EMERSON | USA | DCS Systems, Redundant Controllers, Safety Systems | Ovation, DeltaV Dual-Channel Redundant Safety Systems |
| 12 | Honeywell | USA | DCS Systems, Process Control Modules | Experion PKS/LS/HS, Plant Scape, TDC2000, TDC3000, TPS, Alcont |
| 13 | ICS TRIPLEX | UK | Trusted Safety Control Systems, TMR Modules | Trusted System, T8000 Series |
| 14 | Kollmorgen | USA | Servo Drives, Servo Motors, Motion Control | S700, S300, AKD Series Drives, Servo Motors |
| 15 | PROSOFT | USA | Industrial Communication Modules, Protocol Gateways | MVI69, MVI56, MVI94, MVI71, MVI46, PS69, 3150 Series |
| 16 | Alstom | France | Power Control, Protection Relays, Control Systems | GEC ALSTHOM, Protection and Control Modules |
| 17 | EATON | USA | Electrical Control, PLC, Power Supplies, Circuit Breakers | XC/XN Series PLC, Moeller Series, Power Supply Modules |
| 18 | Allen-Bradley (Rockwell) | USA | PLC Controllers, I/O Modules, Communication Modules | ControlLogix 1756, CompactLogix 1769, SLC 500 1747/1746, PLC-5 1771/1785 |
| 19 | Schneider | France | PLC, Modicon Series, CPU/Communication Modules | Quantum 140, Modicon M340, Modicon Premium |
————————Shenzhen Changxin Automation Equipment Co Ltd -————————
Products that have been released are welcome for consultation. Due to the wide variety of models, we were unable to upload physical images one by one!
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Parameter Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | HIMA |
| Model | H51Q-HRS |
| Product Type | Safety PLC Rack System |
| System Series | HIQuad H51q |
| Safety Version | HRS Redundant Safety Rack |
| Safety Integrity Level | SIL 3 |
| Power Supply Nominal Voltage | 24 VDC |
| Operating Voltage Range | 19.2 VDC ~ 30 VDC |
| Number of Module Slots | Max 12 slots |
| CPU Redundancy | Dual redundant CPU |
| Communication Interface | RS485, Ethernet, PROFIBUS |
| Internal Bus | HIQuad Backplane Bus |
| Working Temperature | -20 ℃ ~ +60 ℃ |
| Storage Temperature | -40 ℃ ~ +85 ℃ |
| Relative Humidity | 5% ~ 95% non-condensing |
| Protection Class | IP20 (installed in cabinet) |
| Shock Resistance | IEC 60068-2-27 |
| Vibration Resistance | IEC 60068-2-6 |
| Certification | TÜV, IEC 61508 |
| Enclosure Material | Metal Rack |
| Mounting Method | DIN rail / Cabinet fixed mounting |
| Dimension (W×H×D) | 482.6 mm × 266 mm × 220 mm |
| Weight | Approx. 5.2 kg (bare rack, no modules) |











