Hydraulic Lift Applications and Signaling Solutions
Explore practical solutions for green hydraulic lift applications with detailed information on EV4-VVVF drive signaling, temperature converter connectivity, and lift controller signaling. Learn about the components involved and their functions in hydraulic lift systems.
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Presentation Transcript
EV4-vvvf Drive Signalling Dr. K. Ferhat Celik Blain Hydraulics ferhat.celik@blain.de K.F. Celik February 2017
A practical solution for Green Hydraulic Lift applications EV4 DOWN travel : Conventional (mechanical) Lift UP travel with inverter controller EV4 Valve EV4 YASKAWA L1000H OPEN loop control Pump Motor Temp. sensor
Connecting the temperature converter Temperature Converter 1 2 3 Temperature Sensor L1000H Temperature sensor is dipped into the oil. 4 5 6 A1 + Power supply 12V to 35V dc - AC
Signaling from lift controller Decel. switch L1000H Elevator speed 1 Stop switch 2 Input common Decel. switch Output frequency Travel signals 1 Stop switch Full speed travel S1+S4 Intermediate full sp travel S1+S5 Inspection speed travel S1+S6 Leveling speed travel S1 3 2 S4 Speed selection signal S1 Up run signal Energy to motor contactors Base block signal S1 is up travel signal, without S1 elevator will not move. S4, S5 and S6 are speed selection signals, without these elevator will move with levelling speed. When more than one speed selection signals are used the lowest speed selection is exucuted.
