. T R E Z F SRB-NA-R-C.21 Safety relay array for emergency stop devices, interlocking devices and others ☛5 enabling outputs and 1 monitoring output ☛2 enabling outputs drop-out delayed: 0 ... 30 sec. ☛Selectable extras: – Trailing edge function – Auto reset – Cross-short recognition ☛Time set in 24 stages (at bottom of housing) Features – Relay output: 3 NO, 2 NO time – Input for emergency stop – DIN rail mounting delayed, 1 NC or door monitoring DIN EN 50 022 (Auxiliary NC for monitoring – LED’s for K1, K2, K3, K4, U , U B i must not be used in safety enabling circuits!) – Housing 45 mm, made of thermoplastic in accordance with – Reset, feedback loop UL-94-V-0, red RAL 3000 Approvals Ü LR 13571-30 E 54284 (M) 98107 Front view 47 57 13 23 33 (43) (53) C C1 S1 X1 X2 SRB-NA-R- t ...... s C.21-24V U U Bi K1 K3 Fuse K2 K4 D D1 S2 X2.1 L62 48 58 14 24 34 (44) (54) Product range Type Enabling outputs Operating voltage Part no. SRB-NA-R-C.21-24V 3 NO/2 NO /1 NC 24 VAC/VDC 600 0790 92 R P - G B SRB-NA-R-C.21 (continued) Example for dual-channel door Wiring diagram L1 monitoring using two limit switches Open (one with positive opening contacts) and **** Closed external reset button. K B Reset Dual-channel output, suitable for contact reinforcement or contact multiplication, K A 47 57 using relays or contactors with positively C C1 X2 X2.1 S1 X1 S2 13 23 33 (43) (53) guided contacts. **** = Feedback loop K1 K2 Wire breakage and earth leakage in the F2 * K1 Trigger monitoring circuits are detected. circuit F1 K1 K A K4 K3 K3 * Fuse F2 (front cover) 1 A, TIMER TIMER fuse F1 (internal) 1.25 A K2 K2 K B K1 K3 K2 K4 K4 D D1 L62 14 24 34 48 58 (44) (54) K K A B N For further examples refer to page 94/95 Model specific Operating voltage 24 VDC –15%/+20%, residual ripple max. 10% Technical data 24 VAC –15%/+6% (refer to page 157 Frequency 50/60 Hz (for AC operating) for general data) Fuse (power supply) T 1.0 A/250 V (internal T 1.25 A/250 V) 7 Power consumption max. 4.0 VA, plus monitoring output L62 Switching capacity (enabling contacts) 230 VAC, 4 A ohmic (inductive with suitable suppression) NO 43/44, 53/54: DC 13: 24 VDC/2 A; AC 15: 230 VAC/3 A Fuse (enabling contacts) 4 A slow blowing Switching capacity (monitoring contacts) L62: max. 500 mA Application category AC 15/DC 13, DIN VDE 0660 Part 200 Pick-up delay ≤ 30 ms Drop-out delay ≤ 60 ms Contact material / contacts AgSnO, self cleaning, positively driven Contact resistance max. 100 mOhm when new Air and creeping distances DIN VDE 0110-1 (04.97), 4 kV/2 Connections Self lifting screw terminals min. 0.5 qmm, max. 2.5 qmm Dimensions H/W/D 83 mm/45 mm/140 mm Weight 480 g Ambient operating temperature –25 °C ... +45 °C (derating curve page 157) 7 Mechanical life 10 switching cycles Terminal labeling DIN EN 60 445/DIN 40 719 Part 2 93 SRB-NA-R-C.21 (continued) Wiring example: Wiring example: Input level Input level C1 S1 X1 C1 C1 X1 Single-channel emergency Dual-channel emergency stop switch according to stop switch according to EN 60 204-1. EN 60 204-1. Wire breakage and earth Wire breakage and earth leakage in the emergency Emergency leakage in the emergency Emergency Reset Reset switch off switch off stop circuits are detected. stop circuits are detected. With external reset button. Cross-shorts in the emergency stop circuits are Safety category 2 not detected. in accordance with EN 954-1. With external reset button. Safety category 3 or 4 in accordance with QS QS EN 954-1. 1 1 0 0 S1 S 2 X 2 S1 S2 X2 Wiring example: Wiring example: Input level Input level C1 D1 X1 C1 S1 X1 Dual-channel emergency Single-channel door stop switch according to monitoring according to Open EN 60 204-1. EN 1088 limit switch with positive opening contact. Closed Wire breakage and earth leakage in the emergency Wire breakage and earth Emergency Reset Reset stop circuits are detected. switch off leakage in the door monitoring circuits are Cross-shorts in the detected. emergency stop circuits are detected. With external reset button for increased safety To enable cross-short requirements. monitoring: Set switch "QS" (bottom of housing) Safety category 2 to 1. in accordance with QS QS EN 954-1. With external reset button. 1 0 1 0 Safety category 3 or 4 in accordance with S1 S2 X2 S1 S2 X2 EN 954-1. Wiring example: Wiring example: Input level Input level C1 D1 X1 C1 C1 X1 Dual-channel door monitoring Dual-channel door according to EN 1088, one monitoring according to Open Open limit switch with positive EN 1088, one limit switch Closed Closed opening contact. with positive opening contact. Wire breakage and earth Reset Reset leakage in the door Wire breakage and earth monitoring circuits are leakage in the door detected. monitoring circuits are detected. Cross-shorts in the emergency stop circuits are Cross-shorts in the detected. emergency stop circuits are not detected. To enable cross-short monitoring: Set switch "QS" With external reset button QS QS (bottom of housing) to 1. for increased safety 1 0 1 0 requirements. With external reset button for increased safety Safety category 3 or 4 S1 S2 X2 S1 S2 X2 requirements. in accordance with EN 954-1. Safety category 3 or 4 in accordance with EN 954-1. 94 SRB-NA-R-C.21 (continued) Wiring example: Wiring example: Power level Power level Single-channel output Dual-channel output L1 L1 Suitable for contact KB Suitable for contact KB KA KC KA KC reinforcement or contact reinforcement or contact * 47 * multiplication, using relays multiplication, using relays 13 43 23 13 (43) or contactors with or contactors with KA X1 X2 X1 X2 KA positively guided contacts. positively guided contacts. 14 44 KB 14 24 48 KB (44) KA KB KC KA KB KC N N * Reset button wired in * Reset button wired in series to feedback loop. series to feedback loop. Advice: Advice: 47 57 For "Automatic reset" Drop-out delay of the (43) (53) X1 apply jumper X1-X2. enabling outputs 47/48 and 57/58 adjustable from When using external reset 0–30 sec. button (X1-X2.1), unit is triggered by trailing edge Enabling outputs 43/44 function. and 53/54 correspond Reset to STOP category 1 Reset button wired in in accordance with series to feedback loop. EN 60 204-1. Enabling outputs 47/48 and 57/58 correspond 7 to STOP category 1 in accordance with EN 60 204-1. (44) (54) X2.1 48 58 Time S1 = 1, S1 = 0, S1 = 1, S1 = 0, in seconds S2 = 1, S2 = 1, S2 = 0, S2 = 0, Rear view S3 = 1, S3 = 0, S3 = 1, S3 = 0, S4 = 1 S4 = 1 S4 = 0 S4 = 0 IV V III VI Max I 0.44 2.30 3.5 18 II Min I 1 0 II 0.62 2.45 5.0 20 QS S4 S3 1 III 0.87 2.70 7.0 22 0 S2 S1 IV 1.05 2.85 8.5 23 V 1.27 3.05 10.2 25 VI 1.77 3.55 14.2 29 Tolerance: ± 5% 95