To Next PageTo Next PageWhat to do if VAT 612 Control Unit pressure is not 0 after ZERO?
If the pressure reading is not "0" after performing ZERO on your VAT Control Unit, wait for the sensor voltage to stabilize before performing ZERO. Ensure the system is pumped to base pressure and the valve is open before performing ZERO. If the sensor offset voltage exceeds ±1.4V, replace the pressure gauge.
What does SR mean on VAT 612 Control Unit display?
If your VAT Control Unit displays 'SR' (Service Request), it could be due to a heavily contaminated valve unit or a sticking gate seal. Clean the valve unit following the maintenance procedures. Then, reset the control unit by cycling the power off and on, or by sending a reset command locally via the service port using CV/CPA/Service Box2.
How to fix VAT 612 ZERO when it does not work?
If ZERO isn't working on your VAT Control Unit, ensure the valve is in the open position (check for 'O' on the display) and that the chamber is at base pressure before attempting ZERO. Also, verify that ZERO is enabled in the valve configuration settings.
What to do if VAT Control Unit PRESSURE CONTROL does not work?
If PRESSURE CONTROL on your VAT Control Unit isn't functioning, ensure that safety mode is inactive (no 'D' on the display) and PRESSURE CONTROL mode is selected (check for 'P' on the display). Also, make sure you have performed the LEARN procedure. Power should be supplied to the motor according to the electrical connection details.
Why is VAT Control Unit PRESSURE CONTROL not optimal?
If the VAT Control Unit's PRESSURE CONTROL isn't working as expected, ensure the setup was completed fully, including performing LEARN and ZERO procedures in the correct order. Stable gas flow is crucial during the LEARN process. Tune the valve for your specific application and verify the sensor range is appropriate, ideally with the controlled pressure between 3% and 98% of the sensor's full scale. Also, use a shielded sensor cable to minimize signal noise.
What to do if VAT Control Unit display shows «SR»?
If your VAT Control Unit displays 'SR' (Service Request), it indicates that the valve unit may be heavily contaminated or the gate seal is sticking. Clean the valve unit according to maintenance procedures. Then, reset the control unit either by cycling the power off and on, or by sending a reset command locally via the service port with CV/CPA/Service Box2.
What does it mean when VAT Control Unit displays «E 22» and position is 009999?
If the display shows «E 22» and the position is 009999, it indicates a fatal error where the rotation angle of the valve plate is limited during operation. This might be because the valve unit is heavily contaminated or the valve plate is mechanically obstructed. To fix this: - Clean the valve unit according to «Maintenance procedure». - Resolve the obstruction. - Reset the control unit by cycling power (OFFàON) or sending a reset command locally via the service port with CV/CPA/Service Box2.
What does it mean if VAT 612 display shows «E 21» and position is 009999?
If the display shows «E 21» and the position is 009999, it indicates a fatal error where the rotation angle of the valve plate is limited during power up. This could be due to the valve plate being adjusted centrally, the valve unit being heavily contaminated or the valve plate being mechanically obstructed. To resolve this: - Adjust the valve plate according to «Maintenance procedure». - Clean the valve unit according to «Maintenance procedure». - Resolve the obstruction. - Reset the control unit by cycling power (OFFàON) or sending a reset command locally via the service port with CV/CPA/Service Box2.
Why VAT Control Unit CLOSE VALVE does not work?
If the CLOSE VALVE function isn't working, it might be because safety mode is active or maintenance mode is active. To solve this: - Provide power to the motor to allow for operation. - Refer to “Display shows «M C»” in this table.
What causes VAT 612 OPEN VALVE not to work?
If the OPEN VALVE function isn't working, it might be because safety mode is active or maintenance mode is active. To solve this: - Provide power to the motor to allow for operation. - Refer to “Display shows «M100»” in this table.
General| Input Voltage | 24 VDC |
|---|---|
| Output Voltage | 24 VDC |
| Current Rating | 10 A |
| Operating Temperature | -20°C to +60°C |
| Protection Class | IP20 |
| Series | VAT 612 |
Emphasizes safety reading and defines danger levels (DANGER, WARNING, CAUTION, NOTICE).
Details the pressure control system, including components and operational modes.
Outlines the step-by-step procedure for installing the valve, including connections and grounding.
Presents critical notices regarding wrong connections and burned connector pins.
Details wiring for +24 VDC sensors via the controller, including connector information.
Details wiring for ±15 VDC sensors without an optional SPS module.
Details wiring for ±15 VDC sensors with an optional SPS module.
Explains the EtherCAT interface connection, including network and cable specifications.
Outlines the setup steps required for the valve to perform pressure control.
Explains the ZERO function for compensating sensor offset voltage to zero pressure.
Describes the LEARN routine for adapting the PID controller to vacuum system characteristics.
Guides the selection of pressure control configurations based on gas flow availability.
Explains how to set up the pressure controller using CPA software or EtherCAT.
Details tuning procedures for adaptive pressure controllers, including gain factor and sensor delay.
Explains how to adjust the gain factor to affect stability and response time.
Describes adjusting sensor delay to improve stability, noting it can slow control response.
Explains how to adjust setpoint ramp time to improve pressure response, especially during decreases.
Details adjusting valve speed for optimal pressure and position control response.
Guides tuning pressure control performance for fixed PI controllers.
Explains how to optimize P gain and I gain for PI controller mode based on system characteristics.
Details tuning pressure control performance for soft pump controllers.
Explains how to adjust the P gain for pressure ramps during pump down.
Guides on preparing for pressure control, tuning performance, and using the PID controller.
