As the most important link of safety circuit, safety controller/safety PLC has been more and more recognized by people. However, in the process of using it, there are still many users who are confused. What are the differences between safety relay and ordinary relay? I would like to share with you here. As we all know, we must remember three words about the concept of safety design:
(1) redundancy
(2) Differences
(3) Self-test
How to construct the safety loop reliability above PLd, the safety controller must become an important link. The safety loop consists of safety input, safety control and safety output, and the safety control "including safety relay, safety controller, safety PLC, etc." realizes the safety control function. Designers match different safety controllers to achieve the reliability level of the safety loop according to the number of products at the input end
SR103 safety relay | |
Two-channel safety monitoring relay module · Secure dual-channel module capable of constructing multiple security products · Performance index E corresponding to ISO 13849-1 · Safety certification of safety category 4 · Built-in self-diagnosis function for fault detection · You can choose automatic reset or manual reset · Pass TUV certification |
Product selection |
Product selection | Power Supply | Enter 1CH safely | output | order number |
SR103-3A1B | 24V AC/DC | Door lock/emergency stop/light screen(PNP) | 3NO+1NC | |
explain | Emergency stop button, safety door, PNP safety light curtain, safety carpet |
safety performance |
· Performance grade (PL):PLe · Security category (Cat.):Cat.4 · Time (TM): 20 years · Diagnostic coverage rate (DC/DC AVG): 99% · Safety level (sil): sil3 · Hardware fault margin (hft): 1 · Safety Failure Score (SFF): 99% · Risk failure probability (pfhd): 3.09e-10/h · Stop level (Stop Category):0 | Stop level EN ISO13849 Stop level EN ISO13849 Stop level EN ISO13849 Stop level EN ISO13849 Stop level IEC61508, IEC62061 Stop level IEC61508, IEC62061 Stop level IEC61508, IEC62061 Stop level IEC61508, IEC62061 Stop levelEN 60204-1 |
· Performance grade (PL):PLe Stop level EN ISO13849 · Security category (Cat.):Cat.4 Stop level EN ISO13849 · Time (TM): 20 years Stop level EN ISO13849 · Diagnostic coverage rate (DC/DC AVG): 99% Stop level EN ISO13849 · Safety level (sil): sil3 Stop level IEC61508, IEC62061 · Hardware fault margin (hft): 1 Stop level IEC61508, IEC62061 · Safety Failure Score (SFF): 99% Stop level IEC61508, IEC62061 · Risk failure probability (pfhd): 3.09e-10/h Stop level IEC61508, IEC62061 · Stop level (Stop Category):0 Stop levelEN 60204-1 |
Main technical parameters |
Power supply characteristics | ·supply voltage:24VDC ·Voltage tolerance:0.85~1.1 ·Ac frequency:50Hz~60Hz ·Current loss:≤90mA(24VDC) |
Input characteristics | ·incoming current:≤50mA(24VDC) ·conductor resistance:≤15Ω ·Input: emergency stop button, safety door, PNP safety light screen |
output characteristic | ·Number of contacts:3NO+1NC ·Contact material:AgSnO2 +0.2μmAu ·Type of contact: forced guidance ·Contact fuse protection: 10AgL/gG, NEO ZED (normally open contact) 6AgL/gG, NEO ZED(the normally closed contact) ·Switching capacity(EN60947-5-1):AC-15,5A/230V; DC-13,5A/24V ·mechanical life:More than 10 times |
Time characteristic | ·Release buffer time: Emergency stop operation:≤30ms Power failure:≤100ms ·recovery time: Emergency stop operation:≤30ms Power failure:≤100ms ·Short-term power interruption:20ms |
環境特性參(can)數 |
·Environmental characteristic parameters:accord with EN60947,EN61000-6-2,EN61000-6-4 ·frequency of oscillation:10Hz~55Hz ·Vibration amplitude:0.35mm ·usage temperature:-20℃~+60℃ ·storage temperature:-40℃~+85℃ ·relative humidity:10%~90% ·Electrical clearance and creepage distance:accord with EN60947-1 ·Overvoltage level:Ⅲ ·class of pollution:2 ·the protection grades:IP20 ·altitude:≤2000m ·rated insulation voltage:250VAC ·Rated impulse voltage:6000V(1.2/50us) ·dielectric strength:1500VAC, 1min |
Application parameters |
functional block diagram | Typical application |
outline dimension |
Overall dimensions (depth× height× width): 114.5mm×99.0mm×22.5mm |
Wiring diagram |
Power Supply | Input circuit | safety moncee |
single channel | Double-channel short- circuit detection | Without short circuit detection in two channels | ||
Input circuit | emergency stop button | |||
exit |
automatic reset | manual reset | |
Reset circuit |
automatic reset | manual reset | |
feedback loop |
|
product model |
product model | power supply | Safety input 1CH | Output | Order number |
SR301-3A1B | 24V AC/DC | Door lock emergency stop | 3NO+1NC | |
SR302-3A1B | 24V AC/DC | Light curtain | 3NO+1NC | |
SR303-3A1B | 24V AC/DC | Hands | 3NO+1NC | |
SR304-3A1B | 24V AC/DC | carpet | 3NO+1NC | |
Explanation |
Industry application
Packaging Equipment Stamping equipment Injection equipment Food industry equipment Pharmaceutical equipment Feeding equipment Automation industry equipment |
Function application parameters
功(gong)能框架圖 | 接線原理圖 |
雙通(tong)(tong)道 安(an)(an)全(quan)監控繼電(dian)器(qi)模塊(kuai)·可架構(gou)多種安(an)(an)全(quan)產品(pin)的(de)安(an)(an)全(quan)雙通(tong)(tong)道模塊(kuai)·最大支持1組雙回路輸入·繼電(dian)器(qi)輸出(chu)(3NO+1NC)·對應 ISO 13849-1 的(de)性能指數(shu) e·安(an)(an)全(quan)類(lei)別 4的(de)安(an)(an)全(quan)認證(zheng)·內(nei)置檢測故障的(de)自診斷(duan)功能。·可選擇自動復位(wei)或手動復位(wei)·通(tong)(tong)過TUV認證(zheng)......
·是一款可編(bian)程三(san)組安(an)全(quan)產品(pin)輸(shu)(shu)(shu)入(ru)(ru)(ru)的安(an)全(quan)控制器(qi),支持(chi)多種安(an)全(quan)產品(pin)元件輸(shu)(shu)(shu)入(ru)(ru)(ru)·最大支持(chi)3組雙回(hui)路輸(shu)(shu)(shu)入(ru)(ru)(ru)·ISO 13849-1性能指數(shu) PLe·內置檢(jian)測故障的自(zi)診斷功(gong)能·Modbus協議通信·輸(shu)(shu)(shu)入(ru)(ru)(ru)輸(shu)(shu)(shu)出故障指示燈·安(an)全(quan)認證:PL e、Cat: 4......
·是一款可組(zu)態(tai)安全控制器,支持多種安全產品元件輸(shu)(shu)(shu)入(ru)·最(zui)大支持6組(zu)雙(shuang)回路輸(shu)(shu)(shu)入(ru)·2路安全繼電器輸(shu)(shu)(shu)出·4路半導(dao)體安全輸(shu)(shu)(shu)出,可擴展輸(shu)(shu)(shu)出模塊·Modbus協議通(tong)信(xin)·輸(shu)(shu)(shu)入(ru)輸(shu)(shu)(shu)出故障指示燈·安全認證:PL e、Cat: 4 ......
·是一(yi)款可組態安(an)(an)全(quan)(quan)控(kong)制器(qi),支持多種安(an)(an)全(quan)(quan)產品元件(jian)輸(shu)(shu)入·最(zui)大支持10組雙回(hui)路(lu)輸(shu)(shu)入·4路(lu)半導體安(an)(an)全(quan)(quan)輸(shu)(shu)出,可擴展輸(shu)(shu)出模塊·輸(shu)(shu)入輸(shu)(shu)出故障指示燈 作為(wei)安(an)(an)全(quan)(quan)回(hui)路(lu)最(zui)重要環(huan)節,安(an)(an)全(quan)(quan)控(kong)制器(qi)/安(an)(an)全(quan)(quan)PLC已經越來越多的(de)被(bei)人們(men)所認知,但是在(zai)使用的(de)過程中,仍然(ran)有很多使用者(zhe)困惑,安(an)(an)全(quan)(quan)繼(ji)......
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