Comoso Controlled Motion Solutions

QVHZO and QVKZOR are 2 or 3 flow proportional valves, direct operated without position transducer, which provide compensated flow control according to the electronic reference signal. 

They operate in association with electronic drivers, see section  which supply the proportional valves with correct current signal to align valve regulation to the reference signal supplied to the electronic driver.

They are available in different executions:

• A, without position transducer;
  
• AE, -AES, as -A plus analogue (AE) or digital (AES) integral electronics;
  

The flow is controlled by a throttle , directly operated by the proportional solenoid . The mechanical pressure compensator  keeps a constant Delta p across the throttle , thus the regulated flow is independent to the load conditions.

The integral electronics  ensures factory presetting, fine functionality plus valve-to valve interchangeability and simplified wiring and installation.

The electronic main connector  is fully interchangable for -AE and -AES executions.

Standard 7 pin connector is used for power supply, analog input reference and monitor signals.

12 pin connector is used for option /Z and option /W (AES).

Following communication interfaces  are available for the digital -AES execution:

• PS, Serial communication interface for configuration, monitoring and firmware updating through Atos PC software - always present also for -BC,
  
• BP and -EH options
  
• BC, CANopen interface
  
• BP, PROFIBUS-DP interface
  
• EH, EtherCAT interface
  

The valves with -BC and -BP interfaces can be integrated into a fieldbus communication network and thus digitally operated by the machine control unit. 

The coils are fully plastic encapsulated with insulation class H.