Schneider Electric XPS-AXE5120P Safety Relay

製品のポジショニング: Safety module for emergency stop & safety gate switch monitoring (カテゴリ 0 停止). Replacement for legacy XPSAX

代表的なモデル: XPSAXE5120P / XPSAXE5120C

XPSAXE5120P: Removable screw terminals

XPSAXE5120C: Removable spring terminals

電源: 24 AC/DCV (交流 & DCユニバーサル)

取り付け: 35 mm DINレール, 幅 22.5 mm

全体の寸法 (幅×高さ×奥行き): 22.5 × 99 × 114 mm

✅ Safety Ratings

PL e / カテゴリー4 (ISO で 13849-1)｜SIL CL3 (IEC 61508 / IEC 62061)

適用規格: ISO で 13850 (非常停止), ISO で 14119 (Safety Interlock Switches)

2. チャネル & 端子の定義 (XPSAXE5120)

1) 電源

A1, A2: Module power supply, 24 AC/DCV

2) Safety Inputs (Dual-channel monitoring, dual NC emergency stop / safety switches recommended)

S11-S12: チャネル 1

S21-S22: チャネル 2

Detects short circuits and wire breaks between dual channels; synchronous response window between channels ＜0.5 s

3) Start Circuit (リセット)

S33, S34

Short S33 and S34 → Automatic Reset

Connect external NO pushbutton between S33 and S34 → Manual Reset

4) External Contactor Feedback Circuit (必須!)

Y1, Y2

Wire auxiliary NC contacts of main circuit contactor in series to Y1-Y2;

関数: Prevent unexpected machine startup if contactors weld closed (anti-bounce restart protection).

5) 安全出力 (3 sets of instantaneous NO safety contacts)

13-14, 23-24, 33-34

Three independent safety relay contacts for de-energizing power contactor coils.

Single contact rated current: 6 あ; AC-15: 360 VA continuous load; DC-13: 24 V/1.5 A.

6) Auxiliary PLC Signal Output (Non-safety circuit!)

41-42: 1 set of NC signal contacts

Only used for status feedback to PLC. Strictly prohibited for safety cut-off circuits.

7) LEDインジケーター

PWR: Power supply present

走る: Safety circuit closed, outputs energized

3. 動作ロジック
4. 電源を入れる; emergency stop reset & safety gate closed → S11-S12 / S21-S22 conductive
5. Y1-Y2 feedback circuit closed (main contactor de-energized)
6. Press reset button (or auto-reset active) → internal dual relays energize
7. 13-14 / 23-24 / 33-34 近い, machine operation permitted
8. Emergency stop triggered / gate opened / wiring fault detected → three safety outputs open instantaneously (≤80 ms)
9. Reset is blocked until all faults are cleared
10. Recommended Typical Wiring Schemes
11. Standard Scheme (Dual NC Emergency Stop + 手動リセット + フィードバック)

A1/A2: 24 V電源

Dual NC emergency stop: Common power feed, two channels routed separately to S11-S12 and S21-S22

NO start pushbutton wired across S33-S34

Auxiliary NC contacts of main power contactor wired in series to Y1-Y2

13/23/33 connected to power; 14/24/34 wired in parallel to drive main contactor coil

2. Prohibited Practices

Do NOT use 41-42 signal contacts for safety cut-off

Do NOT omit Y1-Y2 feedback circuit (losses anti-weld protection, cannot achieve Cat.4)

Single-channel wiring only achieves PL d/Cat.3, fails high-end machine requirements

5. Key Notes for Legacy XPSAX Replacement (Common Application)

Legacy model: XPSAX5120 → Replace with XPSAXE5120P

1. Terminal assignments not fully pin-to-pin compatible, direct plug replacement is impossible; terminal wiring must be rechecked
2. XPSAXE adopts removable terminals for easier cabinet wiring and maintenance
3. Height dimension increased; verify available installation space
4. Identical operating logic and safety rating
5. Series Selection Comparison Reference

XPS-AXE: 非常停止 / 安全ゲートの監視, 3 NO safety outputs, with feedback; カテゴリ 0 停止

XPS-AC: コンパクト 22.5 幅mm, similar functions with minor load capacity differences

XPS-AK: Supports safety light curtains, 安全マット; 充実した機能, より高いコスト

7. よくあるトラブルシューティング
8. RUN LED off after power-up

Verify S11/S21 both channels are conductive

Check continuity of Y1-Y2 (confirm contactor not welded)

2. Machine cannot restart after emergency stop release

Confirm reset mode: short S33 and S34 for automatic reset

Short circuit or wire break detected in dual input channels

3. Random tripping during operation

Total wiring resistance of input cables exceeds limit (≤50 Ω); use larger cross-section cables for long wiring runs

I can provide:

✅ Text version of standard wiring schematic

✅ Full datasheet parameters of XPSAXE5120P

✅ Terminal comparison table: XPSAX vs XPSAXE

Application Scenarios of Schneider XPS-AXE (XPSAXE5120P/C) セーフティリレー

Core Position Recap

Only supports two safety input types: dual-channel dual NC emergency stop pushbuttons + safety gate interlock switches

安全性評価: PL e / カテゴリー4, シル CL3, カテゴリ 0 instantaneous power cut-off

Not compatible with: Safety light curtains, 安全マット, two-hand control devices;

標準構成: External contactor feedback circuit (Y1-Y2), 3 safety NO outputs, 1 PLC status signal output; supports Manual Reset / 自動リセット.

1. Supported Safety Functions
2. Emergency Stop Circuit Monitoring (ISO 13850) : Monitoring machine main emergency stop and zone emergency stop via dual channels
3. Safety Guard Door Interlock Monitoring (ISO 14119) : Mechanical fences, access doors, protective hood interlock switches

Applicable switches: Dual NC safety gate switches, magnetic safety interlock switches (NC接点)

2. Industry Typical Applications

1) General Machine Tools & 金属加工装置

CNC旋盤, マシニングセンター, フライス盤, グラインダー

Small presses, hydraulic machines, プレスブレーキ, shears

Cutting machines, グラインダー, deburring equipment

使用法: Machine panel emergency stop + electrical cabinet door / protective hood interlock

2) 包装, 印刷 & Rubber/Plastics Machinery

Vertical form fill seal machines, flow wrappers, case packers, auxiliary palletizing equipment

ブロー成形機, injection molding auxiliary equipment, small extrusion lines

Printing machines, laminators, die-cutters

特徴: Risk of nipping between rollers and conveyors; immediate machine shutdown required upon guard door opening

3) 運ぶ & Logistics Automation Equipment

ベルトコンベア, roller conveyors, transfer units, lifting transfer tables

Small automated storage systems, sorting workstations, single units on packaging lines

Guard fence interlock at roller conveyor corners

4) Small Robot Workcells

Compact 6-axis robots, SCARA robot single-unit safety fencing

⚠️ Limitation: Only for fence door + workstation emergency stop monitoring. Additional XPS-AK safety relay required if safety light curtains are deployed.

5) 食べ物 & Pharmaceutical Packaging Equipment

充填機, capping machines, ラベル貼り機, auxiliary sterilization equipment

Food cutting and material handling standalone machines

利点: 24 V AC/DC wide range power supply, compact DIN rail mounting; meets CE requirements for export machinery

6) 木工 & Composite Processing Machinery

Edge banders, nesting CNC routers, 彫刻機, sanders

Panel cutting, small composite hot-press equipment

7) Test Benches & Custom Automation Machinery

Component air-tightness test stations, press-fit custom machines, torque tightening equipment

Small lithium battery assembly equipment, inspection tooling

Widely adopted for safety circuit construction on custom machines to satisfy EU Machinery Directive & CE marking

3. Typical Wiring Application Schemes
4. Scheme A: Single Machine with Emergency Stop + Safety Gate (最も一般的な)

Two channels wired in series: Dual NC emergency stop + dual NC safety gate. Machine shuts down immediately upon activation of either device.

Suitable for standalone equipment fitted with protective hoods and safety fences.

2. Scheme B: Dual-channel Emergency Stop Monitoring Only

Both channels connected to dual NC emergency stop without safety gates; used for open-frame equipment only equipped with emergency stop protection.

3. Scheme C: Safety Guard Door Monitoring Only

Two channels connected to safety gate switches, working with zone emergency stops to form the complete machine safety system.

4. 不適切な用途 (Selection Pitfalls)
5. Required interface with safety light curtains, 安全マット, safety edges → Select XPS-AK / XPSUAK
6. Required time-delayed shutdown (Category1/2 stop) → XPS-ATE time-delay series
7. Required two-hand control function → XPS-AB
8. Mixed multiple safety signals (ライトカーテン + safety gate + 非常停止) → Universal XPSUAF safety module
9. Solid-state safety outputs required (no mechanical contacts) → Models with semiconductor outputs
10. Key Selection Reminders

Direct replacement for legacy XPSAX5120: XPSAXE5120P (ネジ端子) / XPSAXE5120C (スプリング端子)

Compact cabinet alternative with equivalent functions: Compare XPSAC5121

To achieve Cat.4 safety rating, Y1-Y2 contactor feedback circuit cannot be omitted

I can organize:

✅ Text version of standard XPSAXE wiring diagram

✅ Safety function description text for CE risk assessment (directly usable in machine manuals)

Detailed Analysis of Y1-Y2 External Contactor Feedback Circuit for Schneider XPS-AXE (XPSAXE)

Terminals Y1, Y2

Connect auxiliary Normally Closed (ノースカロライナ州) contacts of main power contactors

⚠️ This circuit must not be omitted to achieve PL e / カテゴリー4

1. Four Core Functions

1) Anti-Weld Contactor Protection (最も重要な)

シナリオ: Main contactor main contacts weld closed due to high current ablation or mechanical jamming.

Normal shutdown: Contactor coil de-energized, main contacts open; auxiliary NC contacts restore closed state, Y1-Y2 conductive.

Weld fault condition: Safety relay cuts outputs, but main power circuit remains energized; auxiliary NC contacts stay open → Y1-Y2 circuit opens.

XPS-AXE detects open Y1-Y2 circuit, locks safety system and blocks reset, preventing unexpected machine startup and severe safety hazards.

2. Closed-loop safety monitoring to meet EN ISO 13849 カテゴリー4

Cat.4 safety standard requires the system to detect faults of its actuators (接触器).

If Y1-Y2 feedback is omitted:

Safety rating downgrades to PL d / カテゴリ3, failing requirements for high-end machinery and CE export certification.

3. Prevent Recurring Start-Stop Oscillation

After machine trips without feedback monitoring:

The safety relay may repeatedly attempt to energize/de-energize contactors in certain conditions, accelerating contact arc erosion.

Feedback logic ensures: Reset is only permitted after the contactor is fully de-energized.

4. Logic Interlock to Verify Actuator Status

Reset conditions of safety relay add one prerequisite: Confirm all power contactors are in de-energized state.

Full reset sequence conditions:

1. 非常停止 / safety gate dual-channel inputs return to closed state
2. Y1-Y2 feedback circuit conductive (contactor confirmed open)
3. Execute manual or automatic reset
4. Standard Wiring Rules
5. Wire auxiliary NC contact of contactor in series. DO NOT use NO contacts!
6. Only contacts can be wired between Y1 and Y2; parallel components are prohibited.
7. Multiple contactor setup: Auxiliary NC contacts of all main contactors must be wired in series into Y1-Y2 (reset allowed only when all contactors open).
8. Common Wiring Mistakes & Consequences

❌ Mistake 1: Direct short-circuit Y1-Y2

結果: Feedback function disabled, loss of weld detection. Safety rating downgraded to PL d, Cat.4 claim invalid; non-compliant during CE audit. Risk of sudden machine startup if contactor welds.

❌ Mistake 2: Connect contactor NO contacts

結果: Y1-Y2 opens when contactor energizes → safety relay trips continuously during machine operation, equipment cannot run.

❌ Mistake 3: Only one contactor connected in feedback while multiple power contactors exist

結果: Weld failure of any unmonitored contactor cannot be detected, creating safety blind spot.

4. Plain-language Summary

The safety relay issues the shutdown command. Y1-Y2 feedback confirms whether the contactor actually opens as commanded.

If contactor sticks closed and fails to open, the safety relay locks the system and prevents machine restart.

Supplementary Notes for XPS-AXE

Feedback circuit belongs to safety-related wiring; separate routing from power cables is recommended.

For local machines without export requirements where only PL d is demanded, shorting Y1-Y2 is theoretically possible but not recommended by Schneider official manuals. All risks shall be borne by the machine manufacturer.