AJR2 Series Motor Soft Starter

AJR2 Series Motor Soft Starter:Water Pump: with the help of water pump's control function to reduce the water- hammering...

Applications

Water Pump: with the help of water pump's control function to reduce the water- hammering phenomenon when switching on and cutting off, and save the cost of system maintenance. Ball Mill: by means of double slopes voltage starting to reduce the abrasion of gear torque and the maintenance workload, economize time and save costFan: soft starter replaced the traditional starter to reduce strap fretting and machine impact, save the cost of maintenanceCompressor: make use of the current limiting starting or double slopes starting to realize smooth starting, reduce motor heating to lengthen its service lifeCrusher: make use of locked rotor and swift protection to avoid mechanical failure or block, which will cause electromotor superheating to result in burning. Conveying Machinery: running by soft starting and presetting at low speed to realize the smooth and gradual superconducting overall process and avoid the replacement of products and liquid spilling.

Features:

Adopt sixteen Single-Chip computer all-digital automation control.The connection mode of major loop is three in, six out to realize on-line protection of the whole series.Major devices adopt the silicon-controlled modules manufactured by Sanshya Corporation in Japan; CPU adopts Philips' CMOS chip.Starting torque' current, voltage, time can be set flexibly according to different load to attain the first- rank current impulse and torque control.Provide smooth and gradual advancing starting process for motor, reduce the impulse of starting current to electrical network, diminish equipment' vibration and noise, lengthen the service life of machine's transmission, and improve workers' working conditions.Starting current can be adjusted according to load to reduce the starting loss, and get the best torque at the minimum current.Soft stop greatly lengthens the electrical contact service life and meets the requirements of machines on different occasions.Bearing over-current, over-load, phase shorting of power supply, etc. multiple protection to ensure the safety of both equipment and electrical motor.The output voltage of soft starting device rises in accordance with the assumed rules; to make the controlled electrical motor torque finish starting process under the optimal accelerating curve, then exit thyristor module to let bypass contactor work.Convenient outside control interface provide various functions: digital delay starting control, soft stop control input, starting delay relay output, faults relay output.Phase sequence can be identified automatically and owns the phase sequence protecting function.Both free stop and soft stop are available, and the time of soft stop can be adjusted.All-digital setting and outside control function greatly facilitate the users.With the standard RS232C/RS485 interface.Novel structure, small size, reliable performance, simple installation and operation.

AJR2 Electric Characteristics

Standard   AJR2 developed the electronic formula Soft start-Soft stop device and passed the significance test, which is up to the national standard:(GB 14048.6-1998). Three-Phase Source Voltage(U) V 208-10%...240+10%380-15%...415+10%440-15%...500+10% Frequency Hz 50 Nominal Current A 10o≠1000 totally 20 kinds of rated value Motor Power KW   Motor rated plate voltage V   Current Regulation   The nominal current of motor In can be regulated in the range of 0.5~1.3 times of starter's rated current.The maximum starting current can be regulated in the range of 2~7 times In, within 5 times of the starter's current limitation. Start-up Mode   The starting current is limited in 5InSetting before factory leaving: when torque integral are 16 seconds, to the standard load, the current is 3In; when torque integral are 15 seconds, to the heavy load, the current is 3.5 In. Stop Mode Free stop 4 seconds, soft stop   Soft stop In the range of 0.5~60 seconds, can be adjusted by programming   Braking stop In the range of 0.5~60 seconds, can be adjusted by programming (Order Agreement) Display and Keyboard   When operating normally, the working current (or the current percentage) of electrical motor can be showed; when operating at faults, the malfunction contents will be displayed.Keyboard are available for parameter setting-up and points setting-up and lock-in. Output Relay (2 pieces)   JR J M Types of Contact 1"NO"+1"NC" 1"NO"+1"NC" Setting before factory leaving Output of the relay starting Output of the malfunctioning relay Maximum working power~220V VA Starting Power: 1200Holding Power: 120 Minimum switching capacity A 100mA-24V Nominal working current A 0.5 Class AC-14, AC-15(240V AV)& DC-13(48VDC) Nominal thermocurrent A 5 Maximum working voltage ~400V Service life 5×108time Protection   Integrated protection to both motor and starting device Main power supply protection Phase shorting protection and phase imbalance protection, displayed by output relay Selective Starter   AJR2 device can be chosen according to the nominal power and load of motor.   Starter's power can be used for standard load and heavy load.