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| | | Wiring diagrams of NVF.. | | |
| | | BELI MO | | |
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| | | Wiring diagram of NVF24-MFT, NVF24-MFT-E | | |
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| | | Symbols | | | | |
| | | Emergency control function (optional with feedback U5) | | |
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| | | o "5 | | |
| | | Connection via safety isolating transformer | | |
| | | 1 ~ AC 24 V - + DC 24 V | | |
| | | 3 o | | |
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| | | tu a | | |
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| | | a: ■g aï 3 | | |
| | | T3 tu | | |
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| | | Y (DC 0...10 V) from controller | | | I | | |
| | | s | | |
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| | | NVF24-MFT(2)-E-T | | |
| | | S3.1 | | S3.2 | | NVF24-MFT(2)-T | | |
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| | | U5 (DC 2...10 V) | | |
| | | RETRACTING | | |
| | | 1) | | 1) | | 1) | | 0 | | k | | k | | |
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| | | 1) | | 1) | | 1) | | EXTENDING | | |
| | | 0 | | k | | k | | |
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| | | 1) The position of the slide switch has no influence on the emergency control direction k) No measuring voltages can be determined in the deenergized state | | |
| | | | | | | | | | | | Lu | [2 [3 Li] | L5J | NVF24-MFT | | | | 1 | ~ Y/z Y2 + | U | NVF24-MFT-E | | | | | | | | | | | |
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| | | The actuator spindle moves to the end stop if the power supply manufacturers is interrupted. In the case of the NVF24-MFT(2)-T type, the actuator spindle retracts into the actuator housing (pulling). In the case of the NVF24-MFT(2)-T type, the actuator spindle extends from the actuator housing (pushing). The valve has either an NO (open when deenergized) or NC (closed when deenergized) function depending on its design (closing point up or down). | | |
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| | | Influence of the actuator spindle on different valves (closing point selection) | | |
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| | | | | | | | | | | | | Valve | Valve closing point | Closing point setting of | Actuator spindle retracts | Actuator spindle extends | | | | |l Nvl ■u 1 | Ii N,| u | | | | M | Up | A | 1 a Valve control path closing JJ>— (0% flow) | 1 Valve control path _i_ " opening —^_|_)— (100% flow) | | | | Down | V | Valve control path ._L± opening —<_X_^— (100% flow) | Valve control path __t closing (0% flow) | | | | | Up | A | a Valve control path closing ^JyJ— (0% flow), —\^~/— bypass 100% open | ^ Valve control path .--^ opening _>— (100% flow), —^j^-/— bypass 0% closed | | | | | | | | | | | | |
| | | c o ca o i5 o E | | |
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| | | o 'c _c O | | |
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| | | o Z3 | | |
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| | | □ N | | |
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| | | c N I | | |
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| | | a) c | | |
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| | | 28 | | |
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