156 ??? 2cdc110004c0204 3 1sar 502 140 f 0001 c579 2cdc 262 009 f0004 13 23 33 a1 43 44 51 52 a2 14 24 34 a1 a2 13 14 23 24 51 52 33 34 43 44 2cdc 262 020 f0004 ? 2 1 3 4 5 k2 k1 l+/l1 y33 y34 l-/n 13 23 33 14 24 34 34 24 14 44 52 33 23 13 a2 a1 43 51 k1 k2 k3 k4 k5 k6 k5 k6 k3 k4 c579 c57x 7 6 safety relays - contact expansion c579 ordering details extension unit c579 for contact expansion applications the c579 expansion unit can be used in combination with all c57x basic units. it extends the number of enabling circuits. depending on the external connection, safety categories b, 1, 2, 3 or 4 according to din en 954-1 are achievable with this device. functions the c579 expansion unit has four enabling circuits (safety circuits) con? gured as n/o circuits. two leds (channel 1, channel 2) indicate operating state and function. the device is controlled via one enabling circuit of the safety relays c57x. when the emergency stop pushbutton or the limit switch is unlocked and the on-button is pressed, the internal circuit of the safety relay and the external contactors are checked for correct functioning. c579 c579-ac c579-ac 24 v ac/dc 115 v ac 230 v ac 1sar 502 040 r 0001 1sar 502 040 r 0004 1sar 502 040 r 0005 1 1 1 0.28 / 0.62 0.31 / 0.68 0.31 / 0.68 1 safety output contact of the basic device is required for connection to the ex- tension unit. safety outputs: 4 n/o contacts, positively guided 2 leds for status indication safety category acc. to en 954-1: b, 1, 2, 3, 4 depending on the external connection connection diagram c579 block diagram c579 a1-a2 supply voltage 13-14, 23-24, safety outputs 33-34, 43-44 (n/o) 51-52 signalling output (n/c) ? ptc-fuse ? power pack ? control logic ? channel1 ? channel 2 ? external starting conditions ? start pushbutton type supply voltage u c order code pack. unit piece price 1 piece weight 1 piece kg / lb ? approvals ................................................................................ 144 ? technical data ............ ..............................................................160 ? dimensional drawings ............................................................. 161
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