NEED Programmable Relay
8Pages

Programmable relays NEED relay outputs transistor outputs communication modules NEED-MODBUS

Why is NEED outstanding data reading from NEED with the use of NEED-MODBUS module (NEW) - availability of values, transmission of control commands, modification of the RTC clock setting, illuminated LCD display of high contrast (4 lines 12 characters each) and keyboard, exceptional simplicity of programming - program parameters to be set with the keyboard, preview of variables on the display and four user-programmable buttons of the keyboard, measurement of voltages 0...255 V AC; 0...12,75 / 0...25,5 V DC; 0...255 V DC and currents 0...25,5 mA / 0...51 mA (depending on the version), LED...

NEEDtomorrow’s needs satisfied Resources available in the relay Physical resources Front panel description 1 Supply terminals 2 Digital input terminals 3 Analog-digital input terminals 4 Openings of 5,5 mm diameter for panel mounting with two M4 screws 5 LED indicator (three-coloured ©) of the relay status 6 STOP/RUN mode switch 7 Potentiometer for analog value setting 8 Relay programming and external memory card connection, secured by stopper 0 9 Output terminals 10 LED indicators (yellow) of output status 11 LED indicators (green) of input status 12 Keyboard 13 LCD display o The external...

NEEDexceptional simplicity of programming Software PC NEED A computer program which allows editing, compiling and downloading of a program to the memory of a programmable relay. The resources of the relay may be monitored in course of operation, owing to which the user may be currently informed about the status of the inputs, outputs, timers, counters, clocks, comparators, etc. The simplicity and variety of the program edition (text or graphics) make the PC NEED a very convenient tool, owing to which even complex applications are made very quickly, and their start-up time is short. Hardware...

Management of a parking lot with limited number of places The parking lot may operate in timing mode (from ... to ...) or in permanent mode. The sensors at the entrance and exit help to define the number of cars in the parking lot and to compare the number with the preset number of places. When the maximum number of vehicles are parked, the information „NO PLACES AVAILABLE” is lit at the entrance. Additionally, the entrance gate remains closed as long as a vehicle leaves the parking lot. Controller of two pumps - direct start-up Alternate operation of pumps - automatic or manual. Sequence...

o At rated voltage Un. © Tolerance 47...63 Hz. © Relays ...-16-8...: for versions 12 V DC and 24 V DC it is possible to program configuration the type of inputs as voltage or current ones. 0 Relays ...-16-8...: range for current mode in versions DC. © Versions with unprotected relay outputs. © Version 24 V DC with protected transistor outputs: max. off-state leakage current < 0,1mA; max. on-state voltage drop on the connection < 2,5 V. 0 Type of insulation: reinforced. © Type of clearance: micro-disconnection.

J Supply connectionj Analog-digital inputs j Digital outputs NEED-...-..-08-4R-. relay outputs Q1 - Q4: 10 A, 250 V AC NEED-24DC-..-08-4T-. transistor outputs Q1 - Q4: 0,5 A, 24 V DC 0) < NEED-24DC-..-16-8T-. transistor outputs Q1 - Q8: 0,5 A, 24 V DCNEED without LCD display Lamp NEED-12DC-..-08-4R-. Logic state „1”: 8...26 V DC Logic state „0”: -1,5...4 V DC NEED-24DC-..-08-4.-. Logic state „1”: 15...40 V DC Logic state „0”: -3...5 V DC NEED-220DC-..-08-4R-. Logic state „1”: 80...260 V DC Logic state „0”: 0...40 V DC www.need.com.pl www.relpol.com.pl NEED-12DC-..-16-8R-. Logic state „1”:...

Technical data Supply voltage © Surge and short circuit protection. © Max. cross section of the cables: 1 x 0,22...2,5 mm2 (1 x 24...14 AWG). Communication modules NEED-MODBUS Appropriation: ■ data reading from NEED relays and availability of the data values with the ModBus RTU protocol, ■ transmission of control commands to NEED, ■ modification of the real time RTC clock setting, ■ operation from COM1 side as NEED Master and from COM2 side as a device of ModBus RTU Slave type. Options: ■ operation mode change: STOP/RUN, ■ RTC clock: current data reading (in the RUN mode) and setting change...