AO5020NPN detection terminal dry contact input isolated safety barrier collector (one in one out, one in two out)
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- Technical specifications
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- AO5020NPN detection terminal dry contact input isolated safety barrier collector (one in one out, one in two out)
◆ Performance Overview
Isolate and convert the dry contact signal from the danger zone to output it to the safe zone. The output mode is open collector output, and inversion selection can also be performed. The input terminal, output terminal, and power supply terminal are isolated from each other, and have the function of detecting line faults. Can connect on-site equipment such as travel switches, limit switches, pressure switches, and liquid level switches.
◆ Panel indicator light
CH: Output signal status indicator light (red and yellow dual color). When the signal is disconnected or short circuited, it will display in red; When the output circuit is closed, it is displayed in yellow.
◆ Usage environment
Working environment temperature: -20 ℃ to+60 ℃
Allowable relative humidity at work: 10% RH to 90% RH (40 ℃)
Allowable atmospheric pressure during work: 80kPa~106kPa
Allowable ambient temperature during storage and transportation: -40 ℃ to+80 ℃
◆ Installation precautions
The installation location must not have strong vibrations, as well as electromagnetic interference from signal terminals, power terminals, and space exceeding the third category of industrial site electromagnetic interference in the IEC61000-4 series, and there must be no harmful substances in the environment that can cause serious corrosion to metal and plastic parts.
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◆ Technical parameters
Explosion proof grade: [Exia] IIC
Dangerous area allows input signal: dry contact signal
Line fault detection function (LFD): If the input current is less than 50 μ A, it is judged as input disconnection;
Input current>6mA, judged as input short circuit
Output signal to safe zone: open collector
Current output: ≤ 40mA Short circuit current:<100mA
External input voltage: 40VDC Switching frequency:<5kHz
Input and output are reversed control settings: K1 is set to the ON side, and the input and output of the corresponding channel are reversed.
K1 is set to side 1, and the input and output of the corresponding channel are in phase.
K2 is set to the ON side and does not include a disconnection alarm output function (no LFD function).
K2 is set to 2 sides and includes a disconnection alarm output function (including LFD function).
Dielectric strength: ≥ 2500V AC (between input/output/power supply, leakage current 1mA, testing time 1min)
Insulation resistance: ≥ 100M Ω (between input/output/power supply)
Electromagnetic compatibility: EMC complies with IEC61000-4
Certification parameters of National Quality Supervision and Inspection Center for Instrumentation and Electrical Products (CQST): Terminal to Terminal: Um=250V AC/DC Uo=10.5V，Io=13mA，Po=34mW
ⅡC ⅡB ⅡA
Co 1.6μF 11.7μF 52.5μF
Lo 147mH 441mH 1000mH
Power supply: DC 18-32V (typical value 24V DC)
Power consumption: 24V DC power supply, single collector open circuit output of 0.7W
DC 24V power supply, two collector open circuit outputs 1.0W
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