IFM IE5330 誘導型近接センサー

基本情報

Full Model Code: IFM IEB3001-ANKG/3M (Commercial Model: IE5330)

製品タイプ: M8 Shielded Inductive 近接センサー (Flush Mountable)

End-of-Life Notice: Officially discontinued by manufacturer on Mar 31, 2026; replacement selection required.

コア仕様

Thread Size: M8×1, Overall Length: 35 mm

ケーブルコンセント: 3m PVC 3-core straight cable

出力: NPN Normally Open (いいえ)

検出距離: 標準 1 mm (shielded flush type)

コアの電気パラメータ

電源

動作電圧: DC 10～36 V (compatible with standard 24V industrial control systems)

Quiescent Current: 15 mA @ 24 V

内蔵保護機能: 逆極性保護, 短絡保護, 過負荷保護

出力特性

出力タイプ: NPN Open Collector (Sink Output)

出力モード: 通常開 (conducts when metal approaches)

最大負荷電流: 200 ミリアンペア

Voltage Drop at Turn-On: ≤2.5 V

スイッチング周波数: 750 Hz (suitable for high-speed counting)

Sensing Performance

Rated Sensing Distance Sr: 1 mm ±10%, Effective Operating Range: 0～0.8 mm

Metal Correction Factors:

ヒステリシス: 1%～15% of Sr (prevents signal chattering)

機械式 & 環境パラメータ
ハウジング材質: Bronze-plated brass; sensing face: PBT plastic
保護クラス: IP67 (防水 & 防塵, withstands short-time rinsing)
取付方法: Flush shielded design (fully embeddable in metal brackets)
Supplied Accessories: 2 pieces of M8 lock nuts as standard
動作温度: -25 ℃ ～ +80 ℃
EMC コンプライアンス: Industrial standards EN55011 Class B, EN60947-5-2
3-Wire Wiring Definition (3mケーブル)

ワイヤーの色	関数	Wiring Instruction
茶色	DC+ 24V Positive	Connect to 24V terminal of PLC / 電源
青	直流- 0V Negative	Power common ground
黒	NPN Signal Output	Connect load between 24V+ and black wire

PLC Wiring Notes (NPN Sink Type)

Directly compatible with Japanese PLCs (三菱 / オムロン);

European standard PNP source-type PLCs require an intermediate relay for signal conversion.

典型的なアプリケーションシナリオ

Position detection of small cylinders, positioning of miniature tooling fixtures

Counting metal workpieces on miniature conveying lines (750Hz high frequency)

Installation in compact equipment spaces (short slim M8 housing, L=35mm)

Metal detection for machine tools, automated assembly lines and 3C equipment

Recommended Replacement Models After Discontinuation (Direct Drop-In Compatibility)

Identical Spec Drop-In Replacement (M8 shielded, 1mm, NPN いいえ, 3メートルケーブル)

IE5331: New upgraded generation with fully identical parameters, abundant stock
IEB3002-ANKG/3M (new series part number)

Alternate Output Versions

PNP Normally Open equivalent: IE5340

Unshielded M8 long sensing distance (2 mm): IE5090

一般的なトラブルシューティングマトリックス

故障現象	根本的な原因	ソリューション
No indicator light, complete failure to operate	茶色 & blue wires reversed; supply voltage below 10V	Verify wiring sequence, measure 24V power supply
No signal output when metal approaches	Detection gap over 0.8mm; excessive attenuation for aluminum/copper targets	Reduce mounting clearance; replace target with steel sensing plate
Frequent signal chattering	Loose mounting nuts; insufficient hysteresis; severe mechanical vibration	Tighten lock nuts, shorten detection distance
Output fails several seconds after power-on	Output short-circuit triggering built-in protection lockout	Disconnect load, power cycle to locate short circuit

Key Distinction Points for Model Selection

IE5330 Shielded Flush Type: 1検出距離mm, embeddable into metal holders, strong anti-interference capability;
Unshielded M8 model IE5070: 2検出距離mm, non-embeddable, susceptible to interference from surrounding metal;
Plug-in versions have no “/3M” suffix at model end; cable versions come with fixed 3-meter cable.

Complete Troubleshooting Guide for IFM IE5330 (M8 Shielded, NPN いいえ, 1mm)

Precondition Reference Parameters (Benchmark for Troubleshooting)

電源: DC 10～36 V, 3-ワイヤーシステム: Brown = 24V+, Blue = 0V, Black = NPN NO signal output
Rated sensing distance Sr = 1mm (shielded flush design, effective working gap ≤0.8mm)
Max load 200mA, built-in reverse polarity, short-circuit and overload protection
インジケータ: 黄色のLED; lit when metal approaches, off without metal target
IP67 protection class, 動作温度: -25 ℃ ~ +80 ℃
Standard Layered Troubleshooting Procedure (Simple First, On-Site Priority)

層 1: 目視検査 & 機械的取り付け (5-Min Preliminary Check)

Clean sensing face: Remove iron filings, cutting fluid, oil stains and dust; adhered metal debris causes continuous false triggering / permanent ON state
Inspect housing & ケーブル: Check for crushed insulation, broken conductors from bending, water ingress whitening, loose lock nuts
Mounting Specifications (IE5330 is shielded flush type)

Fully embeddable inside metal brackets; side surrounding metal generates no interference

Detection gap must be ≤0.8mm; target surface perpendicular to sensing face

Minimum spacing ≥ 3×Sr = 3mm for multiple sensors mounted side-by-side to avoid mutual interference

Metal Target Correction Factors (Primary cause of sensing distance attenuation)

層 2: Multimeter Test for Power Supply & 配線 (High-Frequency Fault Source)

Cut off power to verify wiring: Brown connected to 24V+, Blue to 0V, Black to PLC input (NPN sink)
Power on and measure voltage across brown & blue terminals: Stable 10～36V required, 波紋 <5%; sensor fails to start if voltage drops below 10V
Reverse polarity lockout: Swapped brown/blue wires activate protection lockout, yellow LED stays off; power off for 3 minutes to reset and restore function
Cable open circuit: Test continuity segmentally for brown, blue and black wires; cable inside cable chains for machine tools is most prone to breakage
PLC Compatibility Note: IE5330 is NPN NO; PLC input common terminal must connect to 24V+. Direct connection to European PNP-type PLCs yields no signal; an intermediate relay is required for conversion.

層 3. Electrical Output Functional Test (Judge Sensor Integrity via Multimeter)

Standard voltage states of NPN NO IE5330 (measure black wire against blue wire 0V):

No metal target: Black wire ≈ DC24V (high level, yellow LED off)

Steel plate close to sensing face: Black wire ≈ 0～2.5V (low level, yellow LED ON)

Test Judgment Criteria:

Normal voltage switching synchronized with yellow LED → Sensor intact; fault lies in downstream PLC / 配線
No voltage variation, LED unresponsive to metal movement → Sensor damaged or locked out by short-circuit protection

層 4. 電磁妨害 & 環境検査 (Exclusive for Signal Chattering)

Sensor cables routed parallel with inverter / servo power cables → High-frequency noise causes random signal fluctuation
Long-distance unshielded cables with both ends of shield grounded (shield shall only be grounded at control cabinet single end)
Magnetic interference generated by frequent switching of nearby welders, solenoid valves and contactors
Ambient temperature exceeding 80 ℃ causes internal circuit drift and intermittent signal loss
Fault Phenomenon Matrix (現象 + 根本的な原因 + One-Step Solutions)

故障 1: Yellow LED never lights up after power-on, zero output

根本的な原因	Quick Check	是正措置
Reversed power polarity (brown & blue swapped)	Multimeter detects reversed voltage polarity between brown & 青	Swap brown and blue power wires; power off and rest 3 mins for reset
電源電圧 <10V or missing 24V rail	Voltage between brown & 青 <10V / 0V	Replace regulated 24V DC power supply; upgrade wire gauge to reduce voltage drop
Internal breakage of brown / blue wires in cable	Segmental continuity test	Cut damaged section and re-crimp terminals, or replace entire 3m cable
Internal sensor burnout from overvoltage	Voltage previously exceeded 36V, lightning surge	Directly replace IE5330 or substitute model IE5331
Tripped fuse on upstream circuit	短絡 / overload protection triggered	Locate downstream short circuit, replace fuse then restore power

故障 2: Yellow LED permanently ON with no metal target nearby

Iron filings / metal powder adhered to sensing face

解決: Wipe sensing face with alcohol; install dust shield baffle

Over-tight detection gap, metal base tightly attached to sensor head

解決: Raise sensor with gaskets; control clearance at 0.4~0.8mm

Short circuit between black output wire and 24V positive

解決: Cut power, separate damaged cable insulation and isolate short points

Internal breakdown of output transistor

解決: Test with identical spare sensor; replace if faulty

故障 3: Yellow LED lights when metal approaches, yet no PLC input signal

PLC input common terminal connected to 0V (PNP configuration incompatible with NPN sensor)

解決: Reconnect PLC COM terminal to 24V+

Open circuit on black output wire; loose / oxidized terminals

解決: Fasten terminals tightly, test black wire continuity and repair breaks

Load current exceeds 200mA (direct drive of large solenoid valves)

解決: Switch via intermediate relay; prohibit direct connection of high-power loads

Burned PLC input channel

解決: Move black wire to spare healthy input channel for verification

故障 4: Chattering, intermittent signal, frequent false triggering / missed detection

Detection gap near critical threshold of 0.8~1mm

解決: Shorten clearance below 0.5mm for sufficient trigger margin

Severe machine vibration loosens sensor nuts and shifts position

解決: Double lock nuts with anti-loose washers

Interference from power cables laid parallel with sensor wiring

解決: Separate cable trays, cross wires perpendicularly; ground cable shield only at control cabinet end

Target made of aluminum / stainless steel with heavy sensing distance attenuation

解決: Fit steel sensing gaskets, reduce detection gap

過剰な電源リップル, poor filtering of switching power supply

解決: Connect 1000μF/35V electrolytic capacitor in parallel to power output terminal

故障 5: Yellow LED extinguishes several seconds after power-on, output disabled (intermittent protection lockout)

Output wiring shorted to ground (black wire touching 0V)

解決: Disconnect black wire of sensor and power on alone; LED recovery indicates downstream short circuit, inspect wiring segmentally

Load short-circuit / instantaneous overload triggers built-in short-circuit protection

解決: Remove downstream load, test sensor under no-load condition

Cable insulation damaged, persistent micro-short between black and blue wires

解決: Replace complete cable assembly

故障 6: Abnormal operation under extreme hot / cold conditions (malfunction at high/low temperature)

周囲温度以上 80 ℃ exceeding rated upper limit

解決: Install air-cooled heat shield baffle; relocate away from cylinder heating blocks and welding stations

Cable hardening and breakage below -25 ℃ low temperature

解決: Replace with low-temperature flexible cable; fix routing to reduce repeated bending

On-Site Quick Self-Test Operation Steps (No Disassembly Required)
No-load sensor test (disconnect PLC load)

Connect only brown to 24V, blue to 0V, leave black wire unconnected; place steel plate near sensing face and observe yellow LED:

Synchronous ON/OFF switching → Sensor body intact

No variation / permanently ON / permanently OFF → Sensor damaged

Cross-Comparison Test (Most Efficient Judgment Method)

Install confirmed good IE5331 / IE5330 at faulty position with unchanged wiring:

Fault eliminated = Original sensor defective

Fault persists = Issue with power supply, 配線, PLC or mounting

Short-Circuit Protection Reset Procedure

After short-circuit lockout: Fully disconnect brown and blue power wires, cut power for ≥3 minutes then re-energize for automatic built-in protection reset.

Hard Rules for Mounting & 配線 (Avoid Recurring Failures)
Do not subject cables to long-term compression or repeated 90° bending (prone to internal conductor breakage)
Signal cables must not be laid parallel with inverter / servo power cables in the same trunking
Shielded cable shielding shall be grounded at single end only; double-end grounding introduces circulating current interference
Although IE5330 shielded version can be embedded into metal, avoid long-term high-temperature baking against thick steel plates
Forbid direct drive of 24V high-power solenoid valves (loads over 200mA must be switched via relay)
Strictly prohibit supply voltage exceeding DC 36V; add surge absorption diodes if no regulated power supply is used
Spare Part Replacement Scheme (When IE5330 Discontinued & Unrepairable)
Direct drop-in replacement: IE5331 (fully matching parameters, NPN いいえ, M8 shielded, 1mm sensing, 3メートルケーブル)
Alternate output type: Identical-size PNP NO model IE5340
Long-distance sensing demand: Unshielded M8 2mm IE5090
Routine Preventive Maintenance (Reduce Failure Rate)
日常点検: Wipe iron filings and cutting fluid off sensing face; check lock nuts for tightness
Weekly Cable Inspection: Check cables inside drag chains for insulation damage, aging and tensile strain
Monthly Power Check: Monitor stability of 24V output voltage via multimeter
High-interference Production Lines: Inspect shield grounding terminals quarterly for oxidation and looseness