M-SYSTEM W2YV-AAA-M Dual-Output Isolated Signal Conditioner

Mini-MW W2YV Compact Dual-Output Isolator

M-SYSTEM (Japan), DIN rail mount, 4-way galvanic isolation (Input / Output1 / Output2 / Power supply). Designed for 4~20mA industrial signal isolation, ground loop interference suppression and 1-input 2-output signal distribution.

✅ Model Decoding W2YV-AAA-M

W2YV ①②③ ④

1. ① A: Input signal = DC 4~20mA (Input resistance: 250Ω)
2. ② A: Output 1 = DC 4~20mA (Max load ≤750Ω)
3. ③ A: Output 2 = DC 4~20mA (Max load ≤350Ω)
4. ④ M: Power supply = AC 85~264V wide-range AC (47~66Hz)

Full definition: 4~20mA input, two independent isolated 4~20mA outputs, AC85-264V powered signal distribution isolator

📋 Core Technical Specifications

🎯 Typical Applications

1. Eliminate ground loop interference between PLC and transmitters
2. Distribute one 4~20mA measurement signal to PLC + recorder / indicator (1-input 2-output signal splitting)
3. Provide galvanic isolation between field transmitters and control room systems to protect AI modules
4. Impedance conversion for parallel acquisition by multiple receiving instruments

⚙️ Selection & Replacement Information

Same series DC powered variant: W2YV-AAA-R2 (DC11~27V supply)

Domestic alternatives: Yutong, Chenzhu, Wanxun and other 1-in-2-out 4-20mA isolators (compare isolation rating, accuracy and temperature drift)

Note: The two current outputs have different maximum load limits. OUT2 max load is only 350Ω. Use OUT1 for high-load applications.

📌 Troubleshooting Guide

1. Inaccurate output: Recalibrate ZERO/SPAN on front panel; check 250Ω matching resistor on input loop
2. No output signal: Verify AC supply 85~264V; check tightness of M3 terminal screws
3. Signal drift: Check earthing; ensure input side ground is separated from PLC ground. The isolator is used to break common ground.
4. Excessive voltage drop under load: Connect the load to OUT1 channel (OUT1 has higher load capacity)

W2YV (Mini-MW Dual-Output Signal Conditioner) Complete Model Code + Common Model List

W2YV = W2YV-①②③-④⑤

①: Input signal; ②: OUT1 output; ③: OUT2 output; ④: Power supply; ⑤: Optional suffix

Code Definition

① Input Code

A: DC 4~20mA, input resistance 250Ω

6: DC 1~5V, input impedance ≥1MΩ

② OUT1 (Channel 1, higher load capacity: Max 750Ω)

A: DC 4~20mA

6: DC 1~5V

③ OUT2 (Channel 2; Max 350Ω for current output; ≥5kΩ for voltage output)

A: DC 4~20mA

6: DC 1~5V

Y: No output (single-output mode)

④ Power Code

M: AC85~264V (Wide AC)

R2: DC11~27V (24V DC supply)

⑤ Options (Suffix /Q, multiple options can be combined)

C01: Silicone coating (moisture & dust protection)

C02: Polyurethane coating

C03: Rubber coating

V01: Multi-turn trim potentiometer

S01: Stainless steel terminal screws

✅ Common Available Models of W2YV Series

1. W2YV-AAA-M: 4~20mA input, dual 4~20mA outputs, AC85~264V (your target model)
2. W2YV-AAA-R2: 4~20mA input, dual 4~20mA outputs, DC11~27V
3. W2YV-6AA-M: 1~5V input, dual 4~20mA outputs, AC supply
4. W2YV-6AA-R2: 1~5V input, dual 4~20mA outputs, DC supply
5. W2YV-A6A-M: 4~20mA input, OUT1=1~5V, OUT2=4~20mA, AC supply
6. W2YV-AA6-M: 4~20mA input, OUT1=4~20mA, OUT2=1~5V, AC supply
7. W2YV-6A6-M: 1~5V input, OUT1=4~20mA, OUT2=1~5V, AC supply
8. W2YV-A66-R2: 4~20mA input, dual 1~5V voltage outputs, DC supply
9. W2YV-AAY-M: 4~20mA input, OUT1=4~20mA only, OUT2 no output (single output)
10. W2YV-666-R2: 1~5V input, dual 1~5V voltage outputs, DC supply

📌 Other W2 Family Models (Same DIN rail housing as W2 series)

W2XF: Arithmetic signal conditioner (addition / subtraction calculation)

W2VABS: Absolute value signal converter

W2RS: RTD resistance temperature detector isolator

W2YV is only for DC mA/V signal 1-in-2-out isolation and distribution. For temperature measurement or arithmetic functions, select other W2 series models above.

⚠️ Important Selection Notes

1. Mixed output (one current + one voltage): Place current signal on OUT1. OUT1 has higher load capacity (750Ω vs 350Ω of OUT2)
2. Coated versions C01 are recommended for high-humidity and chemical cabinet environments
3. Side-by-side dense DIN installation; no heat dissipation gap required, which is the key advantage of this series

W2YV‑AAA‑M (M-SYSTEM) Overall Dimensions

Width(W) × Height(H) × Depth(D) = 29.5 mm × 88.5 mm × 124 mm

Inch: 1.16″ × 3.48″ × 4.88″

Supplementary Dimension Information

1. DIN rail mounting: 35mm standard DIN rail. Modules can be closely mounted side by side, no heat dissipation gap required between modules, ideal for high-density cabinet arrangement
2. Weight: Approx. 200g
3. Mounting method: DIN rail clip mounting, or base plate screw fixing (2×Φ4.2 mounting holes)
4. Terminals: M3 screw terminals. The terminal block protrudes forward; above dimensions refer to maximum overall outline of the unit.

W2YV‑AAA‑M Input Signal Description

For model W2YV-AAA-M specifically: Input is fixed as DC 4~20mA (1st character A), input resistance 250Ω

All Optional Input Types of W2YV Series (1st character in model code)

1. A: DC 4~20mA (Current Input)

Input resistance: 250Ω

This is the input specification of your W2YV-AAA-M

2. 6: DC 1~5V (Voltage Input)

Input impedance ≥1MΩ, high-impedance voltage acquisition

⚠️ Important: W2YV series only has these two factory fixed input ranges. It is NOT programmable. It cannot be modified on-site for 0-10V, 0-20mA, thermocouple or RTD signals. If temperature measurement or multi-range programmable function is required, select other W2 series models such as W2XF.

Brief Comparison

Supplement

The input range of W2YV is locked at factory by model coding. It cannot be changed by hardware jumpers on site. Only A (4~20mA) or 6 (1~5V) can be selected during ordering.