EDF cabinets automate water supply, drainage and upper/lower tank control on 220VAC, 50Hz systems. The steel cabinet integrates an AC contactor, circuit breaker and motor-protection components. Protective functions include overload, short circuit and water shortage. Typical applications include water towers, industrial water storage, irrigation, wastewater sumps, garage drainage and textile processing.
Select the input arrangement as well as the pump duty. S, X and SX configurations use the conductive-probe arrangements described below; F configurations use float-switch control. The gallery shows EDF-1302F.
| Parameter | Specification |
|---|---|
| Supply | Single-phase 220VAC, 50Hz |
| Overall dimensions | 300×250×140mm; approximate dimensions |
| Enclosure | Indoor steel cabinet for the listed 13-series models |
| Control duties | Water supply, drainage, water-shortage protection and upper/lower tank linkage, according to model |
| Protection | Overload, short circuit and water shortage |
| Model | Supply phase | Maximum load | AC contactor | Circuit breaker | Mass | Control function |
|---|---|---|---|---|---|---|
| EDF-1302S | Single-phase | 2kW | CJX2-1810, 220VAC | DZ47-63, 20A, 2P | 3680g | Water supply |
| EDF-1302X | Drainage | |||||
| EDF-1302SX | 3800g | Water supply, drainage and upper/lower tank linkage | ||||
| EDF-1303S | 3kW | CJX2-2510, 220VAC | DZ47-63, 32A, 2P | 3680g | Water supply | |
| EDF-1303X | Drainage | |||||
| EDF-1303SX | 3800g | Water supply, drainage and upper/lower tank linkage | ||||
| EDF-1305S | 5kW | CJX2-3210, 220VAC | DZ47-63, 40A, 2P | 3680g | Water supply | |
| EDF-1305X | Drainage | |||||
| EDF-1305SX | 3800g | Water supply, drainage and upper/lower tank linkage | ||||
| EDF-1302F | 2kW | CJX2-1810, 220VAC | DZ47-63, 20A, 2P | 3680g | Float-switch control | |
| EDF-1303F | 3kW | CJX2-2510, 220VAC | DZ47-63, 32A, 2P |
The following terminal functions apply to the corresponding EDF-13□□S, EDF-13□□X and EDF-13□□SX probe configurations. They do not define the wiring of F float-switch models. In the illustrated arrangements, terminals 1 and 2 receive the 220VAC supply, and terminals 3 and 4 connect to the load.
| Configuration | Probe terminals | Pump response | Protective earth |
|---|---|---|---|
| S: upper-tank filling | 5: high level; 6: low level; 7: common probe below the low-level probe | Stop when liquid reaches probe 5; start filling when liquid falls below probe 6. | Terminal 8 |
| X: lower-tank drainage | 5: high level; 6: low level; 7: common probe below the low-level probe | Start drainage when liquid reaches probe 5; stop when liquid falls below probe 6. | |
| X: water-shortage protection | 5 and 6: low-level detection; 7: common probe | Stop the pump when either low-level probe loses contact with the liquid. | |
| SX: upper/lower tank linkage | Upper tank: 5 high, 6 low, 7 common. Lower tank: 8 high, 9 low, 10 common. | Stop filling at upper probe 5; restart below upper probe 6. Stop water transfer when the lower tank falls below probe 9. | Terminal 11 |
Use conductive probes only with liquids that provide adequate conductivity; distilled water and other poorly conductive or nonconductive liquids are unsuitable for these probe configurations. Place each common probe below its associated low-level probe. Secure the probes to prevent movement, and keep them clear of metal tank walls to prevent unintended conduction.
After wiring, check the input, output and probe connections. Move the probes into and out of the liquid to verify start/stop operation, check manual pump control, then return the selector to automatic operation. Avoid damp, corrosive or metal-laden gas environments. Inspect and clean the probes once or twice every two months.
If the controller does not operate after power is applied, check the power indicator, terminal connections and selector position. If switching does not follow the liquid level, use manual control while checking probe position, crossed or shorted probe/common wires, corrosion, detached leads and the common probe's level. Use the wiring diagram for the selected configuration when correcting connections.
