Relais de sécurité PILZ 750104 PNOZs4

Independent safety relay of PILZ PNOZsigma series, 24Alimentation VCC, 3Sortie NO+1NC+1SO. Conforme aux niveaux de sécurité PL e / Cat.4 / SIL 3, adapté à la surveillance de boucle de sécurité telle que l'arrêt d'urgence, porte de sécurité et barrière immatérielle de sécurité.

Définition du segment du modèle

Segment de modèle	Signification	Description
750104	Numéro de commande.	Exclusive official identification code of PILZ
PNOZ	Série de produits	Standard safety relay series mark of PILZ
s4	Suffixe du modèle	s = Sigma series; 4 = channel configuration (3 safety outputs + 1 auxiliary output)
24VCC	Tension d'alimentation	C.C 24 V (wide range: 18–28V)
3 n/o 1 n/c	Configuration des contacts	3 normally open safety contacts + 1 contact auxiliaire normalement fermé

Core Specification Parameter Table

Catégorie de paramètre	Technical Index	Remarques
Paramètres de base
Tension d'alimentation	24VCC (-15%/+10%)	18–28V DC
Consommation d'énergie	≈2.5W	Operating status
Dimensions	22.5mm(W) × 90mm(H) × 65mm(D)	Montage sur rail DIN, gain de place
Poids	Environ. 120g
Safety Performance
Safety Level	PL e / Cat.4 (EN ISO 13849-1)	Highest safety level
Safety Integrity	SIL 3 (CEI 61508)	Applicable to high-risk scenarios
Temps de réponse	≤150ms	Fast cut-off of safety loop
Input Configuration
Input Type	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
Mode de réinitialisation	Manuel / Automatic optional	Adjust by red knob (A=Auto, ↑=Rising-edge Manual)
Output Configuration
Safety Output	3NON (13-14, 23-24, 33-34)	Forced guided contacts; 6A/240VAC AC-1, 6A/24VDC DC-1
Auxiliary Output	1Caroline du Nord (41-42)	6A/240VAC AC-1, 6A/24VDC DC-1
Semiconductor Output	1SO (Y32)	PNP type, maximum. 0.5UN, for status feedback
Conditions environnementales
Température de fonctionnement	-25℃ ~ +55℃
Température de stockage	-40℃ ~ +85℃
Classe de protection	IP20	To be installed in control cabinet above IP54
Vibration / Résistance aux chocs	10-55Hz/1mm, 15g/11ms	Compliant with industrial environmental standards

Liste des accessoires & Directives d'installation

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 Accessoires en option

Numéro de pièce.	Nom	Fonction
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 Points clés de l'installation

Type de montage: Standard DIN 35mm rail mounting, snap-fit fixation

Méthode de câblage: Plug-in spring terminal; wire cross-section 0.5–2.5mm², maximum. torque 0.8Nm

Exigence d'espacement: Reserve ≥5mm left/right, ≥10mm up/down for heat dissipation

Spécification de câblage: Separate safety loop and power loop wiring to avoid electromagnetic interference

Schéma de câblage (Core Loop)

[24VDC+] ──┬─── [A1] Relay Power Positive

│

[24VDC-] ──┴─── [A2] Relay Power Negative

Bouton d'arrêt d'urgence (Caroline du Nord) ── [S11] ──┬─── [S12]

│

Safety Door Contact (Caroline du Nord) ── [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)

Auxiliary Output:

[41] ── [42] NC Contact (Indication de défaut)

Status Feedback:

[Y32] ── PNP Semiconductor Output (PLC Signal Input)

Note: Select single/dual-channel mode and short-circuit detection function according to actual safety requirements.

Fonctions & Scénarios d'application

5.1 Fonctions principales

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 Scénarios d'application typiques

Champ d'application	Applicable Equipment	Safety Function
Machine Tool Industry	Machining Center, CNC Lathe	Emergency stop button & safety door monitoring
Automated Production Line	Assembly Line, Conveyor System	Safety light curtain, safety mat, two-hand control device
Robotics	Industrial Robot Workstation	Safety fence & emergency stop loop
Packaging Equipment	Packaging Machine, Palletizer	Protective door & safety interlock
Logistics Equipment	Automated Warehouse, AGV	Emergency stop & safety sensor monitoring

Cross-brand Alternative Comparison Table

Marque	Modèle	Paramètres clés	Compatibilité	Gamme de prix
PILZ (Original)	750104 PNOZs4	24VCC, 3NO+1NC+1SO, PL e/Cat.4/SIL 3	100%	700–900 CNY
Schneider	XPSAC5121	24VCC, 3NON+1NC, PL e/Cat.4/SIL 3	Haut	500–700 CNY
Siemens	3RK3121-1AA10	24VCC, 3NON+1NC, PL e/Cat.4/SIL 3	Haut	600–800 CNY
Weidmüller	SRB 3024	24VCC, 3NON+1NC, PL e/Cat.4/SIL 3	Moyen	400–600 CNY
Alternative nationale	Chint NJB1-S4	24VCC, 3NON+1NC, PL d/Cat.3/SIL 2	Moyen	200–300 CNY

Lignes directrices de sélection & Solutions alternatives

7.1 Selection Mnemonic Rule

Voltage Matching → Contact Quantity → Safety Level → Input Type → Reset Mode → Space Limitation

7.2 Selection Decision Tree

Tension d'alimentation: Confirm system is 24VDC (750104) or 48–240V AC/DC (750134 / 751134).
Output Requirement: 3NO+1NC+1SO meets most scenarios; choose PNOZ s5 (4NON+1NC) for more contacts.
Safety Level: PL e/Cat.4/SIL 3 is mandatory for high-risk scenarios such as heavy machinery and robotics.
Input Type: Select IN2- mode if short-circuit detection is required; IN2+ if not needed.
Mode de réinitialisation: Automatic reset for unattended occasions; manual reset for manned operation areas.

7.3 Solutions alternatives recommandées

Budget Limited: Choose Weidmüller SRB series (rentable) or domestic Chint NJB1 series (basic safety level).
System Integration: Siemens 3RK3 series (seamless connection with S7 PLC) or Schneider XPS series (compatible with Modicon PLC).
Extension des fonctions: 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 & Attestation

Certification CE: Compliant with EN ISO 13849-1, CEI 61508, CEI 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

Phénomène de défaut	Cause possible	Solution
Power Indicator Off	Power supply failure, mauvais câblage	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	Surcharge, mauvais câblage	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 & Numéro de commande. List

Numéro de commande.	Modèle	Alimentation	Configuration des contacts
750101	PNOZ s1	24VCC	2NON
750102	PNOZ s2	24VCC	3NON
750103	PNOZ s3	24VCC	2NON+1NC
750104	PNOZs4	24VCC	3NON+1NC
750105	PNOZ s5	24VCC	4NON+1NC
750106	PNOZ s6	24VCC	3NON+2NC
750107	PNOZ s7	24VCC	4NON
750108	PNOZ s8	24VCC	4NON+2NC
751104	PNOZ s4 C	24VCC	3NON+1NC (Pre-assembled spring terminal version)