Overview ARDP intelligent pump controller for low pressure systems, low voltage motor feeder terminal as protection, monitoring and control of a new generation of intelligent integrated device. This product set measurement, protection, control, bus communication as a whole, replacing the original with a breakdown of the elements are arranged in a variety of protection relays, electrical measuring instruments, switches, buttons and signal lights, integrates a variety of control methods as a whole. It also provides a record of the number of operations, the running time, tripping events and other important information management, bus communication capabilities can exchange data with a server or workstation on the network, is an ideal choice for factory automation and intelligent buildings. 2 Intelligent Pump Controller AC sampling measurement method to measure the change of the voltage / current value. Using all data sampling rate of 3.2KHz each phase, integral operation in the period, the value obtained by calculating the root mean square. Integration of various types of protection and control functions, can be widely used deep well pump, submersible pumps, centrifugal pumps, sewage pumps, pipeline pumps, booster pump, multi-stage pumps. 2.1 Features ◆ Two-phase voltage three-phase alternating current loop sampling, computing ◆ True RMS level detection support float type level detector, reed liquid level detector, level transmitter ◆ manual / automatic mode Switching: a pump manual / automatic operation, two pumps manual / automatic operation (a main two devices, two main one, two pumps running (alternating each other prepare)), two pumps (Independent) manual / automatic operation ◆ High Water Level Control: the water level a pump running two pumps running at the same high level. ◆ integrates two independent timers, start the pump with a timer function. ◆ integrated PC software, easy to set up debug ◆ AC / DC power supply overvoltage protection ◆ 2.2 / undervoltage protection phase sequence protection ◆ ◆ ◆ start overtime protection overload / underload (dry run) protection ◆ ◆ grounding protection phase protection ◆ Stall / blocking protection Short circuit protection ◆ ◆ ◆ external imbalance protection failsafe 2.3 standards ● GB / T17626.4-2006 electrical fast transient burst immunity test ● GB / T17626.5-2006 surge (impact ) immunity test 3 Product Models and Specifications Table 1 Note: The controller allows measuring 8 times overload, which can be measured 100A Specifications Maximum current is 800A, the current input signal is 100A / 20mA. Table 2. Note: 1, the need to separately purchase a single-phase or three-phase (one) controller supporting the use of transformers, transformer specifications for the 100A / 20mA. 2, when the purchase of the SR function, the controller supports two with the time set by the control output (this time before the factory settings or optional C function, set by the PC software). 3, optional float level sensors, reed level sensors, liquid level transmitter, leakage protection relays. 4 Table 3 Technical Specifications Parameter Controller auxiliary power AC85V ~ 265V / DC100V ~ 350V motor rated working voltage AC220 / 380V, 50Hz motor rated operating current 1 A (0.1A-9999A) using a small dedicated current transformer 5A (0.1 A-9999A) 1.6A (0.4A-1.6A) 6.3A (1.6A-6.3A) 25A (6.3A-25A) 100A (25A-100A) relay output contacts rated load capacity of the six-way control relay: AC250V, 3A / DC30V, 3A 6-channel digital inputs, optically isolated input signal level float switch, reed switch or level transmitter level RS485 Modbus communication protocol SOE event recording capacity of eight events recorded pollution level 2 protection class panel IP54 5 Dimensions and Installation 5.1 Controller installation dimensions (unit: mm) 5.2 Current transformer installation dimensions (unit: mm) ● Three-phase current transformer installation dimensions (unit: mm) ● Single-phase current transformers installation dimensions (unit: mm) 6 two pumps directly start a wiring diagram, choose a level signal (float) level switch, level switch 2, 3 level switch, level transmitters, for small diameter pool, start and stop Level 2 large difference selectable level switch, access to high level and low level input terminal (signal requirements: high water and low water levels close signal). 2, when the water level is a signal selection (float) level switch, when the water main application detects a high level signal (ie, high water closed), low water levels may be low-level access to the input terminal is closed, when the two lights are lit then the float ball sensor damage. When drainage applications mainly detect low level signal (ie, low water closed), you can access the high water closed the high water input terminal, when the two lights are lit then the float sensor damage. 3, when a reed level switch, using three normally open reed switch, respectively, access high-water level, water level, low-level terminals. Two pumps and drainage work automatically when the water level when the controller detects a water pump starts automatically when it detects a high level signal, the second pump starts automatically when it detects low water level, two pumps are stopped. The control logic is reversed supply applications. 4, when the pressure control for water applications, the low water level float closing low level signal access terminals for detecting an empty pool. 5, the default level transmitter for two-wire (+ 15V output and 4-20mA input), which require special note when other signals such as, order. Two pumps automatic mode, a time to control the height of a pump starts working, two bits control the height of two pumps at the same time to start working. 7 Application examples Level Drainage start conditions: when a pump, the high-water level is higher than the point. Two pumps, drainage pump mode (one main two devices, two main one, two pumps running) and the water level signal is three level switch, liquid level is higher than the water level in a pump start point, above the high-water level When the point, the second pump starts. Shutdown conditions: low water level is below the point. Note: When the drainage pump two operating modes, using two level signals, two pumps can be controlled independently. Figure 8 program