The product family of HAWE Hydraulik's proportional directional spool valve type PSL has been extended by the new actuation option CAN Lite (keyword: onboard electronics). The hydraulics specialist thus offers an ideal and cost-optimized entry into CAN bus communication in many mobile machines. Manufacturers in particular who are interested in quick commissioning thanks to low cabling effort and preset parameters are hereby addressed.
By switching from a valve control by pulse width modulation to CAN bus, the valves can be addressed precisely and function parameters can be adjusted easily. The start and end position of the spool valve are already preset on delivery for easy commissioning. The hysteresis typical for spool valves during operation is very low with the PSL-CAN Lite. The entire valve bank is connected to the bus system of the machine with only one connector plug. This keeps the cabling effort very low and shortens the commissioning time.
The CAN-Lite actuation can be combined with the fully equipped CAN actuation version with spool position feedback from HAWE in one valve bank. Depending on the requirements for precision and repeatability, the machine manufacturer can decide for each consumer which type of actuation is best suited. True to the motto, only as much as necessary.
For the directional spool valve type PSL generally operating pressures up to 420 bar and a flow rate range from 1 to 1000 l/min can be implemented in 4 sizes. The different sizes can be combined in a valve bank. If only the size required for the respective individual function is used in the valve bank, the weight is reduced and fine control is further improved.