MS7056 DC signal isolator
1、 Characteristics
1 in, 1 out
·DC signal input
·4-20m isolated transmission
·Independent DC power supply and support output circuit power supply
2、 Technical specifications
·Accept DC signal input from various devices on site, and after isolation, interference suppression, and other processing. Output standard 4-20mA current signal. DC power supply mode, and supports output circuit power supply. The power supply is isolated between the input and output channels. Standard 35mm DIN rail card installation. Plug and unplug terminal block with spring compression connection. ● Input Input signal: 4-20mA, 1-5V, or other specified signal Input impedance: 24 Ω for current input; Voltage input ≥ 500K Ω ● Output Output current (lo): 4~20mA Output circuit power supply voltage (Ue): 12-35V Voltage drop (Ud): 3V Output load resistance (RL): Calculation formula RL ≤ (Ue Ud) ÷ 0.02 Output ripple:<10mVp-p(Note: The selection of power supply voltage for the output circuit should be determined by the size of the load. If the voltage is too high and the load is very small, it will aggravate the heating condition of the isolator.) |
● Power supply Power supply voltage range: 20~30VDC Rated supply voltage: 24VDC Current consumption (when powered by 24VDC): <22mA (1 in 1 out); <40mA (1 in 2 out); <50mA (2 in, 2 out) ● Comprehensive parameters Standard accuracy: ± 0.1% Temperature drift: ± 0.015%/℃ Response time:<10ms Isolation capability: 2.5KV, 1min, 50Hz between input output power supply Insulation resistance: ≥ 100M Ω/500VDC between input output power supply Working environment temperature: -20 to+60 ℃ Storage environment temperature: -40-+80 ℃ Shell material/protection level: PC (polycarbonate) material/IP20 Dimensions: 16 × 116 × 110 (mm) |
3、 Model selection
4、 Dimensions and installation diagram
● Installation
1.35mm standard DIN rail card installation. Please pay attention to the stability and firmness of the card position during installation.
2. Install vertically as much as possible to facilitate heat dissipation inside the instrument.
● Typical applications
1. Used to provide distribution voltage to on-site transmitters and isolate and convert input signals.
2. Devices connected to the site: Active electrical signals from two-wire or three wire non smart transmitters.
3. Connect to the control system (or other unit combination instruments): The AI card of each DCS/PLC receives current or voltage signals.
● External dimensions
Width (thickness) x height x depth=16 x 116 x 110 (mm)
5、 Terminal wiring diagram
Terminal wiring: Plug and unplug terminal blocks, connected by self boosting spring type compression. The cross-sectional area of the wire shall not exceed 2.5mm2Multiple bundles or single stranded cables.