Independent safety relay of PILZ PNOZsigma series, 24VDC電源, 3NO+1NC+1SO出力. 安全レベルPL eに準拠 / カテゴリー4 / シル 3, 非常停止などのセーフティループ監視に最適, セーフティドアとセーフティライトカーテン.
- モデルセグメントの定義
| モデルセグメント | 意味 | 説明 |
| 750104 | 注文番号. | Exclusive official identification code of PILZ |
| PNOZ | 製品シリーズ | Standard safety relay series mark of PILZ |
| s4 | モデルサフィックス | s = Sigma series; 4 = channel configuration (3 safety outputs + 1 auxiliary output) |
| 24VDC | 供給電圧 | DC24V (広い範囲: 18–28V) |
| 3 n/o 1 n/c | 接点構成 | 3 normally open safety contacts + 1 常閉補助接点 |
- Core Specification Parameter Table
| パラメータのカテゴリ | Technical Index | 備考 |
| 基本パラメータ | ||
| 供給電圧 | 24VDC (-15%/+10%) | 18–28V DC |
| 消費電力 | ≈2.5W | 稼働状況 |
| 寸法 | 22.5mm(W) × 90mm(H) × 65mm(D) | DINレール取付, 省スペース |
| 重さ | 約. 120g | |
| 安全性能 | ||
| 安全レベル | PL e / カテゴリー4 (ISO で 13849-1) | 最高の安全レベル |
| Safety Integrity | シル 3 (IEC 61508) | Applicable to high-risk scenarios |
| 応答時間 | ≤150ms | Fast cut-off of safety loop |
| Input Configuration | ||
| 入力タイプ | Dual-channel safety input | S11-S12, S21-S22 |
| Input Function | Support single/dual-channel wiring, with/without inter-contact short-circuit detection | Switchable via side knob |
| リセットモード | マニュアル / Automatic optional | Adjust by red knob (A=Auto, ↑=Rising-edge Manual) |
| 出力構成 | ||
| Safety Output | 3いいえ (13-14, 23-24, 33-34) | Forced guided contacts; 6A/240VAC AC-1, 6A/24VDC DC-1 |
| 補助出力 | 1ノースカロライナ州 (41-42) | 6A/240VAC AC-1, 6A/24VDC DC-1 |
| Semiconductor Output | 1SO (Y32) | PNP type, 最大. 0.5あ, for status feedback |
| 環境条件 | ||
| 動作温度 | -25℃~+55℃ | |
| 保管温度 | -40℃ ~ +85℃ | |
| 保護クラス | IP20 | To be installed in control cabinet above IP54 |
| 振動 / 耐衝撃性 | 10-55Hz/1mm, 15g/11ms | Compliant with industrial environmental standards |
- 付属品一覧 & 設置ガイドライン
3.1 Standard Package Contents
– PNOZ s4 safety relay main unit (750104)
– Plug-in screw terminal module (pre-installed)
– Product manual (including wiring diagram)
– Mounting clip (for DIN rail)
3.2 オプションのアクセサリ
| 部品番号. | 名前 | 関数 |
| 750900 | PNOZ s pIE | Positive voltage pulse extension module |
| 750910 | PNOZ s nIE | Negative voltage pulse extension module |
| 750100 | PNOZ s base | Base extension module |
| 750101 | PNOZ s cover | Protective cover |
3.3 インストールのポイント
取付タイプ: Standard DIN 35mm rail mounting, snap-fit fixation
配線方法: Plug-in spring terminal; wire cross-section 0.5–2.5mm², 最大. torque 0.8Nm
Spacing Requirement: Reserve ≥5mm left/right, ≥10mm up/down for heat dissipation
配線仕様: Separate safety loop and power loop wiring to avoid electromagnetic interference
- Wiring Schematic (Core Loop)
[24VDC+] ──┬─── [A1] Relay Power Positive
│
[24VDC-] ──┴─── [A2] Relay Power Negative
Emergency Stop Button (ノースカロライナ州) ── [S11] ──┬─── [S12]
│
Safety Door Contact (ノースカロライナ州) ── [S21] ──┴─── [S22]
Reset Button ──┬─── [S34] Reset Loop
│
[S33] ─────────┘
Safety Output:
[13] ── [14] NO Contact 1 (Main Loop)
[23] ── [24] NO Contact 2 (Control Loop)
[33] ── [34] NO Contact 3 (Alarm Loop)
補助出力:
[41] ── [42] NC Contact (障害の表示)
Status Feedback:
[Y32] ── PNP Semiconductor Output (PLC Signal Input)
注記: Select single/dual-channel mode and short-circuit detection function according to actual safety requirements.
- 機能 & アプリケーションシナリオ
5.1 コア機能
- Dual-channel Redundant Monitoring: Dual-channel input circuit design, safely cutting off output upon fault.
- Inter-contact Short-circuit Detection: Optional function to prevent safety failure caused by contact adhesion.
- Forced Guided Contacts: Safety output contacts adopt forced guided structure to ensure reliable disconnection.
- Self-diagnosis Function: Real-time internal circuit monitoring; cut off output and indicate fault immediately when abnormal.
- Flexible Reset Mode: Support automatic reset (power-on reset) and manual reset (rising-edge trigger).
5.2 典型的なアプリケーションシナリオ
| Application Field | 適用機器 | 安全機能 |
| Machine Tool Industry | Machining Center, CNC Lathe | Emergency stop button & 安全ドアの監視 |
| Automated Production Line | Assembly Line, Conveyor System | セーフティライトカーテン, safety mat, two-hand control device |
| Robotics | Industrial Robot Workstation | Safety fence & emergency stop loop |
| Packaging Equipment | Packaging Machine, Palletizer | Protective door & safety interlock |
| 物流機器 | Automated Warehouse, AGV | 非常停止 & safety sensor monitoring |
- Cross-brand Alternative Comparison Table
| ブランド | モデル | 主要なパラメータ | 互換性 | 価格帯 |
| PILZ (オリジナル) | 750104 PNOZ s4 | 24VDC, 3NO+1NC+1SO, PL e/Cat.4/SIL 3 | 100% | 700–900 CNY |
| シュナイダー | XPSAC5121 | 24VDC, 3NO+1NC, PL e/Cat.4/SIL 3 | 高い | 500–700 CNY |
| シーメンス | 3RK3121-1AA10 | 24VDC, 3NO+1NC, PL e/Cat.4/SIL 3 | 高い | 600–800 CNY |
| ワイドミュラー | SRB 3024 | 24VDC, 3NO+1NC, PL e/Cat.4/SIL 3 | 中くらい | 400–600 CNY |
| 国内代替品 | Chint NJB1-S4 | 24VDC, 3NO+1NC, PL d/Cat.3/SIL 2 | 中くらい | 200–300 CNY |
- 選定ガイドライン & 代替ソリューション
7.1 Selection Mnemonic Rule
Voltage Matching → Contact Quantity → Safety Level → Input Type → Reset Mode → Space Limitation
7.2 Selection Decision Tree
- 供給電圧: Confirm system is 24VDC (750104) or 48–240V AC/DC (750134 / 751134).
- Output Requirement: 3NO+1NC+1SO meets most scenarios; choose PNOZ s5 (4NO+1NC) for more contacts.
- 安全レベル: PL e/Cat.4/SIL 3 is mandatory for high-risk scenarios such as heavy machinery and robotics.
- 入力タイプ: Select IN2- mode if short-circuit detection is required; IN2+ if not needed.
- リセットモード: Automatic reset for unattended occasions; manual reset for manned operation areas.
7.3 Recommended Alternative Solutions
- Budget Limited: Choose Weidmüller SRB series (費用対効果の高い) or domestic Chint NJB1 series (basic safety level).
- システム統合: Siemens 3RK3 series (seamless connection with S7 PLC) or Schneider XPS series (compatible with Modicon PLC).
- 機能拡張: Match with PNOZ s pIE / nIE pulse extension modules to realize complex safety logic.
- Space Limited: Keep PNOZ s4 (22.5mm narrow design), avoid wide-body models.
- Air Freight Compliance & 認証
CE認証: Compliant with EN ISO 13849-1, IEC 61508, IEC 62061.
Air Freight Judgment: No built-in lithium battery / supercapacitor; belongs to ordinary industrial electronic equipment, no special air freight restrictions.
Packaging Requirement: Anti-static packaging; transport temperature: -40℃ ~ +85℃.
- Troubleshooting Quick Reference
| 故障現象 | 考えられる原因 | 解決 |
| Power Indicator Off | 電源障害, wrong wiring | Check A1/A2 wiring and measure voltage |
| No Safety Output | Open input loop, reset not triggered | Check emergency stop / safety door contacts, confirm reset mode |
| No Semiconductor Output | 過負荷, wrong wiring | Check Y32 load (≤0.5A) and confirm PNP polarity |
| Fault Indicator Flashing | Internal self-diagnosis fault | Power off and restart, check input loop short circuit |
PNOZsigma Basic Safety Relay Series — Full Model & 注文番号. List
| 注文番号. | モデル | 電源 | 接点構成 |
| 750101 | PNOZ s1 | 24VDC | 2いいえ |
| 750102 | PNOZ s2 | 24VDC | 3いいえ |
| 750103 | PNOZ s3 | 24VDC | 2NO+1NC |
| 750104 | PNOZ s4 | 24VDC | 3NO+1NC |
| 750105 | PNOZ s5 | 24VDC | 4NO+1NC |
| 750106 | PNOZ s6 | 24VDC | 3NO+2NC |
| 750107 | PNOZ s7 | 24VDC | 4いいえ |
| 750108 | PNOZ s8 | 24VDC | 4NO+2NC |
| 751104 | PNOZ s4 C | 24VDC | 3NO+1NC (Pre-assembled spring terminal version) |
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