Global Valves - BELIMO - #26

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ENG-93001-93621-08.04-1M • Printed in Switzerland • ZSD • Subject to technical modifications BC 26 Actuating/running times, wiring diagrams of NV..-3/AV..-3 Wiring diagrams NV..-3/AV..-3 T ~ AC 24 V - + DC 24 V N L1 AC 230 V NV230-3 N Y1 Y2 a b a b 1 2 3 - + Y1 NV24-3 Y2 T 1 2 3 ! AV24-3 AV230-3 Connection via safety isolating transformer 3-point The actuating time of the classic 3-point actuator (NV..-3(-T) or AV..-3-R) can be reduced from 7.5 s/mm to 3.75 s/mm by adjusting slide switch 1.1 to the "ON" position. The closing point is down with fewer than 20% of the valves that are used and slide switch S1.2 can be set to the "ON" position. 1) Only possible with NV actuators. Symbols "Standard" act. time "Fast" act. time Closing point "up" Closing point "down" Relay contact a (Y1) Relay contact b (Y2) Actuator spindle moves Actuating time Valve closing point S1.1 S1.2 0 0 stops stops 7.5 s/mm Ä OFF OFF 1 0 EXTENDING 0 1 RETRACTING �Þ OFF ON 1 0 RETRACTING 0 1 EXTENDING 3.75 s/mm1) Ä ON OFF 1 0 RETRACTING 0 1 EXTENDING �Þ ON ON 1 0 EXTENDING 0 1 RETRACTING Stroke-dependent actuating and running times Valve types DN H4..B H5..B DN15-50 – – – H6..N H7..N DN15-50 DN65-80 DN65-100 DN125/150 H6..S DN15-50 – DN65-100 DN125/150 Control 1) Emergency control function Fast running Running or actuating time preconfigured Minimum adjustable running or actuating time [s] 1) Actuator type 15 mm stroke 18 mm stroke NV NV230-3 3P 7.5 s/mm 3.75 s/mm 3.75 s/mm NV24-3 3P 7.5 s/mm 3.75 s/mm 3.75 s/mm NV24-MFT 0…10 V 150 s 60 s 70 s NVG24-MFT 0…10 V 150 s 60 s 70 s NVY24-MFT (Fast running function) 0…10 V • 35 s 27 s 32 s NVF24-MFT(-E) 0…10 V • 150 s 2) 60 s 2) 70 s 2) AV 30 mm stroke 40 mm stroke AV230-3 3P 7.5 s/mm 3.75 s/mm 3.75 s/mm AV24-3 3P 7.5 s/mm 3.75 s/mm 3.75 s/mm AV24-MFT 0…10 V 150 s 112 s 140 s AVY24-MFT (Fast running function) 0…10 V • 60 s 45 s 60 s 1) MFT types: running time and other functions can be parameterized with PC-Tool or the MFT-H adjuster 2) Emergency actuating time < 1.5 s/mm