Kapitel17_en_v004.qxd 11.01.2007 9:19 Uhr Seite 5-40 Emergency-Stop and guard door monitoring SRB 324 ST Technical data Standards: IEC/EN 60204-1, EN 954-1, BG-GS-ET-20 Stop category 3x Stop 0, 2x Stop 1 (1 … 30 s delayed) Control category: 4 Start conditions: start, reset button (trailing edge), autostart Enclosure: glass-fibre reinforced thermoplastic Connection: plug-in, screw terminals 2 2 Cable section: min. 0,2 mm , max. 2.5 mm solid or multi-strand lead (incl. conductor ferrules) U : 24 VDC –15%/+20%, residual ripple max. 10% e 24 VAC –15%/+10% Frequency range: 50/60 Hz (on AC operational voltage) I : max. 0.2 A (DC version), e • Suitable for signal processing of potential- plus signalling outputs Y1-Y3 free outputs, e.g. emergency-stop command Protection class: terminals IP 20 devices, interlocking equipment etc. enclosure IP 40 to EN 60529 • Suitable for signal processing of outputs Power consumption: max. 7.8 VA; 4.8 W connected to potentials (AOPD’s), plus signalling outputs Y1-Y3 e.g. safety light grids/curtains Max. fuse rating: internal electronic trip F1, tripping current > 0.5 A, • 1 or 2 channel control reset after disconnection of supply voltage • 5 enabling paths, two delayed 1…30 s Monitored inputs 1 or 2 channels • 3 signalling contacts (transistor output) Feedback circuit: yes • With hybrid fuse Drive circuits: S11/S12, S21/S22: max. 28 VDC • Optionally Enabling contacts: 5 enabling paths – Cross-wire detection Utilisation category: AC-15, DC-13 – Automatic reset function Switching capacity: enabling paths "Stop 0": 6 A/230 VAC, 6 A/24 VDC – Manual reset with edge detection enabling paths "Stop 1": 3 A/230 VAC, 2 A/24 VDC in fail-safe circuit Fuse rating: enabling paths: 6 A gG D-fuse • Control Category 4 to EN 954-1 Auxiliary contacts: 61/62: • Green LED indications for relay K1, K2, K3, Switching capacity: auxiliary contacts: 2 A/24 VDC K4, supply voltage U and internal fuse U Signalling output: Y1 - Y3: 8 transistor outputs 100 mA total, B i short-circuit proof Max. switching frequency: 5 Hz Contact material: AgNi, AgSnO, self-cleaning, positive action Contact resistance: max. 100 mΩ in new condition Pull-in delay: ≤ 30 ms Drop-out delay: ≤ 30 ms Air clearances and creepage distances: DIN VDE 0110-1 (04.97), 4 kV/2 Overvoltage category: III to DIN VDE 0110 Degree of pollution: 2 to DIN VDE 0110 Ambient temperature: – 25 °C … + 45 °C (Derating curve on request) Mechanical life: 10 million operations Function display: 6 LED Weight: 480 g Dimensions: 45 x 100 x 121 mm Approvals Ordering details SRB 324 ST 5-40 Kapitel17_en_v004.qxd 11.01.2007 9:19 Uhr Seite 5-41 Emergency-Stop and guard door monitoring Note Wiring diagram • Input level: the example shows a 2-channel control of a guard door monitoring with two L1 position switches, wherof one with positive A break, external reset button J; cross-wire monitoring and feedback circuit S J • The control recognises cross short, cable break and earth leakages in the monitoring A1 S11 S12 S21 S22 X1 X2 X3 X4 X5 13 23 33 47 57 61 circuit. • F1 = Hybrid fuse F1 • Relay outputs: Suitable for 2 channel control, Controllogic F2 for increase in capacity or number of contacts K1 TIMER K2 TIMER by means of contactors or relays with K1 K3 AC/ K1 positive-guided contacts. DC K3 K4 • For 1-channel control, connect the NC S contact to S11/S12 and bridge S12/S32 K2 K4 K1 K3 K2 K4 K2 and S21/S22 • Connect potential p-type outputs of safety A2 S31 S32 Y1 Y2 Y3 14 24 34 48 58 62 light grids/curtains to S12/S32 and bridge S21/S22. The devices must have the same reference potential. SRB 324ST KB • Automatic start: The automatic start is programmed by KA connecting the feedback circuit to the N terminals X1/X2. If the feedback circuit is M 3 not required, establish a bridge at X1/X2 and X4/X5. • Drop-out delay: The enabling path "Stop 1" 37/38 is adjust- able for 1 to 30 seconds drop-out delay. Setting of the drop-out delay time is carried out by means of a DIP switch from the front of the enclosure. • Signalling outputs Y1 = Status input S12 Y2 = Status input S22 Y3 = Status operating voltage LED Note Function indication: The wiring diagram is shown with guard doors closed and in de-energised condition. The integrated LEDs indicate the following operating states. • Position relay K1 • Position relay K2 • Position relay K3 • Position relay K4 • Supply voltage U B • Internal operating voltage U i 5-41