chenzhu
About CHENZHU
SHANGHAI CHENZHU INSTRUMENT CO., LTD was established in 2002, which originated from Shanghai automation instrument institute, has grown as a leading brand providing high quality protective product for your important asset in both Process Automation and Factory Automation industry, specialized in isolated barriers, signal isolators, Surge Protective Devices and safety relays etc. integrating research and development, manufacturing and sales, providing OEM/ODM service and self-brand product. 2013, we launched the first One million pcs product and announced 5 years guarantee. Actually, we have 4 certifications which were the first one in instrumentation industry domestic China, such as IECEx Certificate, Europe ATEX Certificate by DNV, SIL from TUV Rheinland, and Japan TIIS Ex-proof Certificate. CHENZHU's factory has 2 SMT production line, over 4.5 million pcs products were sold from 2002 till end of 2019.
Contact Info
Address
8F, Bldg.6, No. 201, Minyi Road, Songjiang Dis, Shanghai, China
Email
info@chenzhu-inst.com
Safety Mat Safety Relay
Safety relay modules provide a high level of fail-safe operation for critical processes and protection. This safety mat controller and multi-function controllers safety relay offer 2 or 4-wire safety mats/edges. Automatic reset and monitored manual reset are available.
The programmable safety relay support 3 safety output contacts (N/O) and 1 auxiliary output contacts (N/C) or 2NO+1NC+1SO or 2NO(t)+1NC(t).
Features & Advantages of Safety mat relay
2-wire safety mats/edge
4-wire safety mats/edge
Automatic reset
Monitored manual reset
Parameter of Safety Mat Safety Relay
Block Diagram of Safety Mat Safety Relay
Typical Applications of Safety Mat Safety Relay
For more information about safety mat wiring diagram, please feel free to contact us!
As a professional intrinsic barrier supplier, CHENZHU has high-quality intrinsic barrier for sale. Welcome to contact us if needed.
Safety Relay
Automation direct safety monitering relays are mainly applied to the safety control circuit, connecting the safety sensing elements and mechanical equipment motion controller. The working principle of safety relay interlock system: when there is a fault in the safety circuit, the intrinsically safe barrier relay automatically detects the fault and stops the machine movement, to protect equipment and personnel safety.
Chenzhu solid state safety intrinsic relay is the first product to get PLe/Cat.4, SIL3 certified in China mainland. Automation and safety is the main character of the programmable safety relay module that you can be assured.
Various safety barrier relay products are available for you to select. We have safety relay for E-stop buttons, emergency stop buttons, two-hand control buttons. We also provide light curtain safety relay, sil 2 rated relay and sil 3 rated relays to better meet the needs of our customers. For more information, please feel free to contact us.
Safety Relay Types
CZSR Classic Series Safety Relay
E-Stop Button, Safety Gate Safety Relay
Light Curtain Safety Relay
Two-hand Push Buttons Safety Relay
Safety Mat Safety Relay
Extension Module Safetu Relay
CZSR Process Series Safety Relay
DO Signal (SIS) 24V DC 2A Safety Relay
DO Signal (SIS) 24V DC 3A Safety Relay
DO Signal (SIS) Input 24V DC 5A Safety Relay
CZSR Smart Series Safety Relay
Automation Direct Safety Relay Features
Various Models Suitable For Different Safety Scenarios
SIL 3 Certification
Easy Configuration
Multiple Input Devices
Easy Wirng and Installation
G3 Anti-Corrosion
FAQ of Safety Relay
Q
Why I can not find safety speed monitioring function in the Safconfig?
A
This function only supported by specific models like CZSR8501-2A4S .
You can find FrequencyMonitor which is the safety speed monitor in Logical Block List.
Q
How can I use Auto-Reset for blocks?
A
Just simply connect Input and Output without any Logical Blocks.
Q
Do I need to pay for the Controller Software?
A
The Controller Software for the china safety barrier, SafConfig is totally free! Also any Controller Software in our website for configure the products are free!
Q
What is safety relay?
A
Safety relay offer an extra level of protection usually through a redundant wiring system.
These relays are used to enable an monitor the signals between other safety devices such as safety switched sensors, light curtains, intrinsic safety barriers and isolators. In many cases, the safety relay can be paired with a safety PLC configurable safety relay or safety controller.
Q
What is the difference between safety relay and normal relay?
A
Compared to a normal relay, a safety control relay have mandatory steering contact arrangement assures protection when contact fusion happens. A safety relay is a module composed of multiple relays and logic circuits. It is a circuit composition unit. In order to achieve the correct and low malfunction feature and to minimize errors and failure values, and complete each other's faults in a fault state to enhance safety factors.
Q
How does an intrinsically safe barrier work?
A
Safety relays are generally composed of two or more relays and electronic circuits, so as to complement each other's abnormal defects. Even if any component fails, it can diagnose the failure and enter a safe state. And it will not affect the shutdown instructions issued to the machine, ensuring the safety of production. From the structural point of view, the safety relay generally adopts a dual-channel structure, and the channels can diagnose each other, and use a forced-oriented relay to realize the diagnosis of the output contact fusion fault.
Q
How do safety relays improve safety?
A
Like electrical panel box surge protector, safety relays are devices that implement safety functions. When a danger occurs, the safety relay will play a role in reducing the danger to an acceptable level. When an error occurs, the safety relay will initiate a safe and reliable response. Each safety relay monitors a specific function.
Q
What are the main applications of safety relays?
A
Suitable for the application of electromagnetic door lock switch to ensure the safety of the work area.
It is suitable for the key to cooperate with the safety gate switch to detect the opening and closing of the door.
Applicable to safety gates, detecting the position of the door, opening or closing applications.
Suitable for light beam devices to prevent workers from entering the dangerous work area.
Applicable safety mat switch to confirm that workers can safely enter the hazardous work area.
Applicable E-stop buttons, in case of emergency, stop the machine operation.
Q
What's the line monitoring function of Safety Relay?
A
Line monitoring is the basic function for safety relay which is used into SIS, which all CHENZHU automation direct safety relay offerred and built to PCB. Just input the DO signal and safety relay will check the test pulse automatically. When pulse error happens, safety relay will cut off the output so that to ensure SIF to work.
We can also provide kinds of intrinsic safety barriers and isolators for sale, if you are interested, please contact us.
Screw Mounting SPD Parallel Connection
SPD for on site instruments; 2/3/4 wires; mounted in parallel through thread: 3/4 ''NPT, male; C2: 20kV/10kA, D1: 2.5kA/line; intrinsic safety and flameproof: Ex ia IIC T4~T6 Ga, Ex d IIC T4~T6 Gb;
Features & Advantages of Screw Mounting spd connection
Intrinsic safety certification; explosion proof electrical product certification.
Suitable for 2, 3, 4 wire temperature transmitter, thermal resistor, thermocouple, flow meter, solenoid valve, RS-485, RS-232, etc.
Parameter of Screw Mounting SPD Parallel Connection
Schematic Diagram of Screw Mounting SPD Parallel Connection
Typical Applications of Screw Mounting SPD Parallel Connection
As a professional intrinsic barrier supplier, CHENZHU has high-quality intrinsic barrier for sale. Welcome to contact us if needed.