To Next PageTo Next PageWhat does «D 0» mean on my VAT 64246-UEHC-0001 display?
If the display of your VAT Control Unit shows «D 0» indicating that the Motor Interlock is open, ensure that motor power is supplied to allow for operation. Refer to «Electrical connection» for details.
What does error «E 20» mean on my VAT 64246-UEHC-0001 Control Unit?
If the display shows «E 20» and the position is 009999 (fatal error - limit stop of valve unit not detected) on your VAT Control Unit, it may be because the clamp coupling screw is not fastened. Tighten the clamp coupling screw. Refer to chapter «Maintenance» for details. A RESET or restart of the valve is necessary.
Why isn't the pressure ‘0’ after ZERO on my VAT 64246-UEHC-0001 Control Unit?
If the pressure is not ‘0’ after performing ZERO on your VAT Control Unit, it could be due to sensor voltage shifting, the system not being pumped to base pressure, or the sensor offset voltage exceeding ±1.4V. Wait until the sensor voltage stabilizes before performing ZERO. Open the valve and bring the chamber to base pressure before performing ZERO. Replace the pressure gauge.
What does error «E 22» mean on my VAT 64246-UEHC-0001 Control Unit?
If the display of your VAT Control Unit shows «E 22» and the position is 009999 (fatal error - rotation angle of valve plate limited during operation), it could be due to a heavily contaminated valve unit or a mechanically obstructed valve plate. Clean the valve unit according to «Maintenance procedure». Resolve any obstruction. Reset the control unit by cycling the power (OFFàON) or send a reset command locally via the service port with CV/CPA/Service Box2.
What does error «E 21» mean on my VAT 64246-UEHC-0001?
If the display of your VAT Control Unit shows «E 21» and the position is 009999 (fatal error - rotation angle of valve plate limited during power up), it may be due to the valve plate being centric adjusted, a heavily contaminated valve unit, or a mechanically obstructed valve plate. Adjust the valve plate according to «Maintenance procedure». Clean the valve unit according to «Maintenance procedure». Resolve any obstruction. Reset the control unit by cycling the power (OFFàON) or send a reset command locally via the service port with CV/CPA/Service Box2.
Why is the pressure reading wrong or negative on my VAT Control Unit?
If the pressure reading on your VAT Control Unit is wrong or negative, check the sensor connections as described in «Electrical connection». Verify if a 2 sensor version is present at the valve controller and verify the configuration. Refer to «Setup procedure». Perform ZERO when base pressure is reached. Refer to «ZERO» for details. Also, verify the sensor supply voltage.
What does «SR» mean on my VAT Control Unit display?
If the display of your VAT Control Unit shows «SR» (Service Request), it could be caused by a heavily contaminated valve unit or a sticking gate seal. Clean the valve unit according to «Maintenance procedures». Reset the control unit by cycling the power (OFFàON) or send a reset command locally via the service port with CV/CPA/Service Box2.
What to do if ZERO does not work on VAT 64246-UEHC-0001 Control Unit?
If ZERO does not work on your VAT Control Unit, ensure the valve is in the open position (check for O on the display) and that ZERO is enabled. Open the valve and bring the chamber to base pressure before performing ZERO. Enable ZERO. Refer to «Valve configuration» for details.
Why won't the CLOSE VALVE function work on my VAT Control Unit?
If the CLOSE VALVE function is not working on your VAT Control Unit, it might be because the safety mode is active (check for 'D' on the display) or maintenance mode is active. Provide power to the motor to allow for operation. Refer to «Electrical connection» for details. Refer to “Display shows «M C»” in this table.
What to do if the VAT 64246-UEHC-0001 pressure reading is wrong or negative?
If the pressure reading is incorrect or negative, check the electrical connection of the sensor(s) and ensure the 2 sensor version is present at the valve controller. Verify the valve version and configuration. Perform ZERO when base pressure is reached. Also, verify the sensor supply voltage.
General| Brand | VAT |
|---|---|
| Model | 64246-UEHC-0001 |
| Category | Control Unit |
| Language | English |
