Emergency Stop Relays, Safety Gate Monitors Category 4, EN 954-1 PNOZ X4 Technical data PNOZ X4 Electrical data Power supply AC: 24, 110, 115, 120, 230, 240 V DC: 24 V Tolerance 85 ... 110 % 1 Power consumption Approx. 4.5 VA/2.5 W Voltage and current at input, 24 V DC, 40 mA start and feedback loop Output contacts 3 safety contacts (NO) 1 auxiliary contact (NC) Switching capability according to EN 60947-4-1, 02/01 AC1: 240 V/8 A/2000 VA DC1: 24 V/8 A/200 W EN 60947-5-1, 11/97 (DC13:6 cycles/min) AC15: 230 V/5 A DC13: 24 V/7 A Contact protection according to 10 A quick or 6 A slow EN 60947-5-1, 08/00 EMERGENCY STOP switchgear and safety gate monitor according to Times VDE 0113-1, 11/98, EN 60204-1, Pickup delay monitored start: max. 100 ms 12/97 and IEC 60204-1, 11/98 auto./man. start: max. 0,35 s Delay-on de-energisation at EMERGENCY STOP: max. 50 ms at mains off: max. 0,5 s Features Recovery time approx. 1 s Simultaneity channel 1 and 2 either monitored, unmonitored Power failure buffer approx. 25 ms or automatic start possible Mechanical data 1-channel or 2-channel wiring 2 2 Max. cross-section of outer conductor 2 x 1.5 mm oder 1 x 2.5 mm with or without shorts across single wire or multi-wire with contacts detection end ferrule Dimensions (H x W x D) 87 x 45 x 121 mm Weight AC: 360 g, DC: 265 g Approvals Description Operating modes PNOZ X4 45 mm P-97 housing, on standard Single channel mode rail, snap-on Dual channel mode without shorts Relay outputs, positive-guided: across contacts detection 3 safety contacts (NO) Dual channel mode with shorts 1 auxiliary contact (NC) across contacts detection Connection possibilities for Automatic start EMERGENCY STOP switch Manual start without monitoring Safety gate limit switch Manual start with monitoring Start switch LEDs for switching status Channel 1 and 2 and power supply Contact multiplication and Contact amplification possible by external contactors NSG-D-2-128-12/01 % & ()* + ,,- ) * % ()* + ,,- ) * , . / 0 & 1 2& Emergency Stop Relays, Safety Gate Monitors Category 4, EN 954-1 PNOZ X4 Schematic interior diagram Example 5 Dual-channel safety gate control without shorts across contacts Feedback- Start Safety Auxiliary Rckfhr- Start- Sicherheits- detection with automatic start U loopkreis loopkreis Input loop contacts B Eingangskreis kontakte Hilfskontaktcontact A1 A2 Y2 Y1 S34 S33 S11 S11 S12 S12 S52 13 23 33 41 S11 S21 S33 Y36 AC S12 DC K1 S11 Channel Kanal 1 Start loop 1 Startkreis Channel Kanal 2 2 S52 S22 S34 Y37 K2 Example 6 Dual-channel safety gate control with shorts across contacts detection and S21 S22 Y36 Y37 14 24 34 42 Only on ACnur am AC-Gert Input loopEingangskreis monitored start device S11 S11 S33 Y36 External wiring S1 S12 S3 Example 1 Example 3 S21 Single-channel EMERGENCY STOP Dual-channel EMERGENCY STOP S2 wiring without shorts across wiring with automatic start contacts detection with monitored S22 S52 S34 Y37 start S11 S11 S21 S33 S11 S12 S21 S33 Y36 Y36 Example 7 S1 Dual channel light barrier control with S1 S3 shorts across contacts detection by BWS, with monitored start S11 S11 S21 S33 Y36 BWS 24 V DC S12 S52 S22 S34 Y37 S12 S52 S22 S34 Y37 S3 Example 2 Example 4 Single-channel EMERGENCY STOP Single-channel safety gate control wiring with unmonitored start with unmonitored start S12 S52 S22 S34 Y37 S11 S21 S12 S33 Y36 S11 S12 S21 S33 Y36 Legend S1 S1 S3 S3 S1/S2: EMERGENCY STOP or safety gate switch S3: Start switch actuated element S12 S22 S52 S34 Y37 S12 S52 S22 S34 Y37 gate not closed gate closed NSG-D-2-128-12/01 % & ()* + ,,- ) * % ()* + ,,- ) * , . / 0 & 1 2&