To Next PageTo Next PageWhy doesn't remote operation work on my VAT Control Unit?
If remote operation of the VAT Control Unit is not working, ensure that local operation via the service port is not active and that safety mode is not engaged (check for 'D' on the display). Switch to remote operation and provide power to the motor. Refer to the «Electrical connection» for details.
How to fix VAT Control Unit when no dots are lighted on display?
If no dots are lighted on the display of your VAT Control Unit, connect the valve to the power supply according to «Electrical connection» and ensure that the power supply is working.
What does «E 20» mean on VAT Control Unit display?
If the display on your VAT Control Unit shows «E 20» (fatal error - limit stop of valve unit not detected), replace the actuator according to «Maintenance procedures».
Why is pressure not ‘0’ after ZERO on VAT Control Unit?
If the pressure is not ‘0’ after performing ZERO on your VAT Control Unit, it could be due to: * Sensor voltage shifting. Wait until the sensor stabilizes before performing ZERO. * The system not being pumped to base pressure. OPEN VALVE and bring the chamber to base pressure before performing ZERO. * The sensor offset voltage exceeding ±1.4V. Replace the pressure gauge.
What does «E 40» mean on VAT Control Unit display?
If the display on your VAT Control Unit shows «E 40» (fatal error - motor driver failure detected), replace the control unit according to «Maintenance procedures».
What does «E 22» mean on VAT Control Unit display?
If the display on your VAT Control Unit shows «E 22» (fatal error - rotation angle of valve plate limited - operation), it indicates that the valve plate might be mechanically obstructed. Resolve the obstruction.
What does «E 21» mean on VAT Control Unit display?
If the display on your VAT Control Unit shows «E 21» (fatal error - rotation angle of valve plate limited – power up), it indicates that the valve plate might be mechanically obstructed. Resolve the obstruction.
What does «SR» (Service Request) mean on VAT Control Unit display?
If the display of your VAT Control Unit shows «SR» (Service Request), it indicates that the valve unit is heavily contaminated or the gate seal is heavily sticking. To resolve this, clean the valve and/or replace the gate seal according to «Maintenance procedures».
General| Brand | VAT |
|---|---|
| Model | 64246-UEHC-0001 |
| Category | Control Unit |
| Language | English |
