正しいモデルはUM-IC14/8AI/WET/F/S7です。. “I/C” 混乱しやすい, そして “21” タイプミスです. This product is a passive front-end adapter module of フエニックス・コンタクト バリオフェイスシリーズ. 8チャンネルアナログ入力を備えたシステム配線モジュールです。 (AI), 内蔵ヒューズと湿式接点用の共通アース, designed for Siemens S7-300/ET200 M systems. There is no official standard part number with the identical designation; it is a custom configured model derived from the standard UM-IC14 series.
- モデルの内訳 (Nomenclature Rules)
| セグメント | 意味 |
| 1つ | VARIOFACEインターフェースモジュールシリーズ (dedicated front-end adapter for PLC systems) |
| IC14 | 14-pin IDC/FLK flat cable interface (compatible with 14-point I/O modules for S7-300) |
| 8AI | 8 アナログ入力チャンネル |
| WET | 濡れた接触 / common ground design (shared power and ground bus, ideal for active sensors) |
| F | Independent fuse protection for each channel |
| S7 | Compatible with Siemens SIMATIC S7-300/ET200 M systems |
- 主な機能 & 技術仕様
応用: Fast front-end adapter for S7-300 analog input modules (例えば, 6ES7331 series). It adopts direct plug-in 14-pin IDC connection on the PLC side and screw terminals on the field side, eliminating tedious single-core wiring and reducing wiring errors.
チャンネル: 8 アナログ入力チャンネル (voltage/current signals: 4-20ミリアンペア, 0-10V, 等)
保護: Independent fuses per channel plus WET common ground bus, providing short-circuit protection and facilitating troubleshooting.
繋がり: 14-position IDC/FLK interface (2.54mm pitch) for PLC side; screw terminals for field wiring (0.2–4mm² solid conductors / 0.2–2.5mm² stranded conductors).
取り付け & 環境: Designed for standard NS35 DIN rail mounting; 幅: 約. 115mm; 保護クラス: IP20; 動作温度: -20℃ ~ +50℃.
Compatible S7 Modules: 14-pin AI modules such as 6ES7331-1KF02 and 6ES7331-7KF02.
- Reference Models in the Same Series (Direct Selection & 交換)
No official standard 8AI model with the exact same designation is available. Below are equivalent models with identical structure and suffixes for parameter reference and replacement:
- UM-IC14/8DO/F/LA/S7 (部品番号: 2902896): 8-channel Digital Output with fuses and indicator lights, compatible with S7 systems. Fully identical in hardware structure.
- UM-IC14/8R/DO/1CO/WET/D/S7 (部品番号: 2904530): 8-channel relay output module with wet contacts and freewheeling diodes. The definition of the “WET” suffix is consistent.
- 選択 & Verification Recommendations
- Check original drawings and labels: The error is mostly caused by mixing up “I/C” and mistakenly writing “21” のために “IC”.
- 注文: Place orders with Phoenix Contact or authorized distributors using the designation UM-IC14/8AI/WET/F/S7. The system will match the corresponding configured components.
- Functional Equivalent Replacement: For off-the-shelf standard products, refer to the hardware dimensions and mounting specifications of 2902896 そして 2904530.
UM-IC14/8AI/WET/F/S7 is a passive front-end module of Phoenix Contact VARIOFACE series. It matches 14-pin analog input modules (6ES7331-7KF02/1KF02) for Siemens S7-300/ET200 M. 搭載 8 AI channels, WET common ground for wet contacts (suitable for active 4-wire sensors) and independent fuses per channel, it connects to the PLC via prefabricated IDC14 cables. Its core advantages include standardized pre-assembled wiring, rapid commissioning, channel-level fault isolation, reduced common-mode interference and convenient maintenance.
The following are 4 reusable typical industrial application cases, including application scenarios, システムアーキテクチャ, wiring logic, problem solutions and selection reasons. Key implementation notes and supporting component recommendations are attached at the end.
- 水処理 & Municipal Pumping Stations (代表的な用途)
Application Background
Installed in pump rooms and chemical dosing rooms of wastewater treatment plants and waterworks, it collects 8 sets of 4-20mA signals from active transmitters, including liquid level, プレッシャー, pH value, dissolved oxygen, turbidity, 温度, flow rate and residual chlorine. The system is centrally monitored by S7-300 PLC. All sensors are 4-wire active instruments powered by external 24V DC. The on-site environment features high humidity, ほこりや強い電磁干渉. It requires isolation of single-channel faults, quick component replacement and individually replaceable fuses.
System Architecture
Siemens S7-300 CPU + 6ES7331-7KF02 (14-pin 8AI module) → FLK14 prefabricated cable → UM-IC14/8AI/WET/F/S7 → 8 on-site 4-20mA transmitters → Common 24V+/M busbar (WET design).
Module Functions & Selection Reasons
- WET common ground: Unify the negative terminals (M-) の 8 AI channels to the common M bus. It perfectly matches 4-wire instruments, greatly suppresses common-mode interference and prevents signal drift.
- Independent fuses per channel: Short circuit or overcurrent on one sensor will only blow the corresponding fuse without affecting other 7 チャンネル. The system keeps running, fuses can be replaced quickly and faults are easy to locate.
- Direct plug connection between IDC14 prefabricated cable and PLC front connector: Complicated single-core wiring is eliminated, 以上 90% of wiring errors are reduced and on-site commissioning is accelerated.
Solved Key Issues
Avoid drawbacks of traditional terminal blocks: excessive wiring, frequent connection errors, difficult fault diagnosis and severe interference.
Adapt to humid environment: Anti-loosening screw terminals, IP20 protection and DIN rail mounting facilitate daily maintenance.
- 空調設備 & Building Energy Stations
Application Background
Deployed in chilled water stations and boiler rooms of large commercial complexes and factories. It acquires 8 analog signals (0-10V / 4-20ミリアンペア), including inlet/outlet water temperature, water pressure, 流量, valve position feedback, operating current of fans and water pumps, as well as indoor temperature and humidity. S7-300/ET200 M is adopted for building automation control. Most sensors output active signals with dense I/O points. Standardized cabinet wiring, convenient later expansion and easy maintenance are required.
System Architecture
ET200 M remote I/O station (6ES7153 interface module + 331-7KF02 AI module) → FLK14 prefabricated cable → UM-IC14/8AI/WET/F/S7 → 8 temperature/pressure/flow transmitters & valve position feedback units → 24V common power bus.
Module Advantages
WET common ground unifies analog ground potential and resolves signal fluctuation, drift and accuracy degradation caused by ground potential difference among multiple sensors.
Channel fuses ensure that a short circuit on one sensor only cuts off the corresponding channel, without disrupting the entire automation system and lowering downtime risks.
Standardized cabinet layout: Fixed module width, neat DIN rail arrangement and clear labels support team operation and regular inspection.
- Machinery & Production Line Automation (包装, 射出成形, リチウム電池)
Application Background
Used on continuous production lines such as packaging machines, 押出機, injection molding machines and lithium battery coating machines. It collects 8 process parameters via 4-20mA / 0-10V signals, including material temperature, mold temperature, 油圧, air pressure, 張力, スピード, liquid level and weighing data. Controlled by S7-300 PLC, the equipment operates under severe vibration and strong on-site interference. Sensors are replaced frequently, requiring hot swapping and reliable fault isolation.
Typical Wiring Logic
PLC側: 14-pin IDC interface connected to 331-7KF02 module.
Field side:
- チャネル 1-8: AI+ / AIconnected to transmitter signals.
- WET common terminal: Connected to 24V(M) uniformly. 4-wire instruments adopt independent power supply and shared signal ground.
- Each channel is equipped with replaceable micro fuses (normally 250mA / 500ミリアンペア) for quick on-site replacement.
Solved Key Issues
耐振動性: Screw terminals ensure firm connection and anti-loosening performance.
Rapid replacement: The module can be swapped directly by disconnecting the cable without rewiring, which greatly shortens downtime.
- 太陽光発電, Energy Storage & 変電所 (Energy Monitoring)
Application Background
Installed in PV combiner boxes, energy storage BMS and power distribution rooms. It collects 8 DC voltage/current signals (0-10V / 4-20ミリアンペア), temperature signals and insulation monitoring signals. S7-300 PLC is used for data acquisition and remote transmission. The site suffers from strong electromagnetic interference, which easily distorts signals, so high safety level and signal isolation are mandatory.
アプリケーションノート
WET common ground design suppresses strong electrical interference and guarantees measurement accuracy.
Independent fuses protect expensive AI modules by preventing impact from short circuits in sampling loops.
It can be used together with Phoenix Contact PT series surge protectors to realize dual protection of lightning protection at the front end and fuses at the rear end.
- Key Notes for Selection & 実装 (Mandatory Reading)
5.1 モデルの説明
UM-IC14/8AI/WET/F/S7 is a custom configured model without a dedicated fixed part number. Its hardware is based on the standard UM-IC14 series. Reference standard products in the same series:
UM-IC14/8DO/F/LA/S7 (部品番号: 2902896): 8-channel DO module with identical hardware dimensions and interfaces.
Matching prefabricated cable: VIP-PA-FLK14/xxM/S7 (例えば, 2322702, 3m length) for direct connection between PLC and the module.
5.2 適用範囲
✅ Applicable scenarios: 4-wire active sensors with 4-20mA / 0-10V signals; 14-pin AI modules for S7-300/ET200 M; applications requiring common ground, channel-level fuses and pre-assembled wiring.
❌ Inapplicable scenarios: 2-wire passive sensors (requiring independent power supply), isolated signals, non-S7-300 systems and non-14-pin AI modules.
5.3 Core Advantages Summary
- Standardized pre-assembled wiring: Direct plug-in connection via IDC14 cables cuts wiring time and errors.
- WET common ground for wet contacts: Eliminates ground potential difference of 4-wire instruments, suppresses common-mode interference and improves measurement accuracy.
- Independent fuses per channel: Prevents fault propagation, protects PLC modules and enables efficient maintenance.
- Dedicated compatibility with S7 systems: Perfectly matched with 6ES7331-7KF02/1KF02 modules for plug-and-play use.
コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池















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