Bosch Rexorth Valve amplifier VT-SSBA1-PWM-1X/V001/10 R901363048 Rexroth

Bosch Rexorth Valve amplifier VT-SSBA1-PWM-1X/V001/10 R901363048 RexrothThe switching amplifier VT-SSBA1-PWM is directly mounted at the K4 connector of the valve.It is supplied with 24 V direct voltage. If at wire 2 (enable “IN”), a high-signal is applied, the voltage profile is applied at the valve according to the functional diagram. If the enable input is switched, the status display LED is flashing “yellow”.Fast switching (V001)As fast switching amplifier, the VT-SSBA1-PWM considerably reduces the switching time of standard directional valves in connection with 12 V solenoids.On switching on, the solenoid is overexcited with 24 V by 100 %. Afterwards, the voltage is reduced and the required holding current is set via pulse width modulation.The switching time table in section Technical data illustrates the assignment of the valves to the switching amplifier.Energy saving (V002)If 24 V standard directional valves are used, the switching amplifier considerably reduces the continuous current to save energy.After a defined power supply time and the connected hydraulic switching of the valve, the system switches to pulse width modulation and the power is considerably reduced. This leads to a holding power under the power of a 24 V valve at 24 V supply voltage.The table on energy saving in section Technical data illustrates the assignment of the valves to the switching amplifier.PWM at V002: on/off ratio = 60/40