STW12 ZIEHL | Alldatasheet
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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de 12 inputs (for transformer STWA1) 2 of these inputs with adjustable switching threshold AC 0,5...5 AA 12 outputs (Open Collector) max. DC 40 V/40 mA relay OR-linked (of all 12 inputs) LED displays (1/channel) Multiplex operation possible Applications: The current relay STW12 is used where AC-current yes/no has to be evaluated, however, the exact value of the current is not relevant. Examples are the control of machines in suction plants or monitoring of the mode of operation of loads (on, off or damaged). The STW12 is suitable in particular for being used in con- nection with a PLC. Current-Relay STW12 AC-Detection, 12-channel, Single evaluation, OR-Circuit Technical Data The current relay STW12 moni- tors the current flow yes/no of up to 12 alternating-current circuits. If there is an AC-current of ≥1 A through a connected transformer STWA 1, the according output transistor switches and the yellow LED lights up. All the OR inputs are linked at the same time. If a current is identified in at least one of the monitored current circuits, a relay (1 change- over contact) picks up. The STW12 is installed at an open printed circuit board. The lower part can be used for snap- fastening on a 35 mm DIN-rail or for screw fastening (option). The supply voltage is DC 24. This voltage can be used at the same time for inquiry of the output transistors. When requesting the outputs in 2 groups in multiplex operation, only 8 I/Os of the PLC are needed. Power supply Us Function Transformer input Overload cap.continous/max 10s Switching points E1, E2 Tolerance Switching points E3...E12 Switch-off delay Switch-on delay Output relay Type of contact Open Collector Testing conditions rated ambient temperature range Dimensions H x B x T Attachment Protection housing / terminals Weight DC 20 - 30 V, < 2 VA 12-channel single/OR 1…12, type STWA 1
100 A / 300 A
adjustable, AC 0,5...5 A ± 20% on ≤ AC 1 A off ≥ AC 0,3 A 10 s. approx. 0,5 s.
1 CO, 12 x Open-Collector
type 2 see "general technical informations" max. DC 40 V/40 mA see "general technical informations" -20°C…+55°C design V 6: 90 x 105 x 32 [mm], 37-pole on 35 mm DIN rail according to DIN EN 50 022 or with screws M4 (option) IP 30 / IP 20 approx. 135 g Voltage Monitoring Type SW GNDGND GND GND E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E12 18 15 16 GND +24V A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12GND +24V I1 I2 24V – + 1 .... 12 Stromwandler/ current transformer STWA1(H) STWA1H (+) = E1...E12 STWA1H (-) = GND 2015-09-04 STW12 Part number: S225127 DC 20-30 V