To Next PageTo Next PageWhat to do if the VAT Control Unit does not respond to DeviceNet® commands?
If the VAT Control Unit doesn't respond to DeviceNet® commands, check if the node number and baud rate are correct. If not, proceed according to the «Setup procedure, DeviceNet® CONFIGURATION».
Why POSITION CONTROL does not work on VAT Control Unit?
If the VAT Control Unit POSITION CONTROL does not work, ensure that power is supplied to the motor. Refer to «Electrical connection» for details. Select POSITION CONTROL mode, referring to «Position control» for details.
Why is pressure not ‘0’ after ZERO PRESSURE CONTROL on VAT 61228-KAGG-0002?
If the VAT Control Unit pressure is not ‘0’ after ZERO PRESSURE CONTROL, wait until the sensor voltage stabilizes before performing ZERO. OPEN the VALVE and bring the chamber to base pressure before performing ZERO. If the sensor offset voltage exceeds ±1.4V, replace the pressure gauge. Ensure power is supplied to the motor and refer to «Electrical connection». Select PRESSURE CONTROL mode, referring to «Pressure control». Perform LEARN, referring to «Setup procedure».
How to fix remote operation on VAT Control Unit?
To resolve a non-functioning remote operation on the VAT Control Unit, switch to remote operation and provide power to the motor. Refer to «Electrical connection» for details.
What to do if the pressure reading is wrong or negative on my VAT Control Unit?
First, check the electrical connections. Then verify the valve version and configuration. Perform ZERO after base pressure is reached. Finally, verify the sensor supply voltage. Ensure that the sensors are connected, the correct 2-sensor version is present at the valve controller (if applicable), and the sensor power supply provides enough power.
Why is the VAT Control Unit PRESSURE CONTROL not optimal?
PRESSURE CONTROL might not be optimal due to several reasons. Perform the setup procedure completely. Ensure that you have performed LEARN and ZERO before LEARN. If LEARN was interrupted, repeat it with stable gas flow. Tune the valve for your application. Use a sensor with a suitable range, ensuring the controlled pressure is between 3% and 98% of the sensor's full scale. Also, make sure a shielded sensor cable is used to minimize noise.
What to do if my VAT Control Unit's Network Status LED is flashing red (time out)?
If the Network Status LED is flashing red, it indicates a time-out. Reestablish I/O connections to resolve this issue.
What to do if the VAT Control Unit controller does not respond or responds unexpectedly to DeviceNet® commands?
If the VAT Control Unit controller isn't responding as expected to DeviceNet® commands, it might be a configuration issue. Send a FACTORY RESET and redo the complete configuration. Refer to «Explicit messaging control commands, FACTORY RESET» and «Setup procedure, DeviceNet® configuration» for details.
What to do if ZERO does not work on VAT 61228-KAGG-0002 Control Unit?
If ZERO does not work, ensure the valve is in the open position and the chamber is at base pressure before performing ZERO. Also, check if ZERO is enabled. If not, enable ZERO. Refer to «Valve configuration» for details.
What to do if pressure is not ‘0’ after ZERO on my VAT Control Unit and PRESSURE CONTROL does not work?
If the pressure isn't ‘0’ after performing ZERO and PRESSURE CONTROL isn't working, first wait until the sensor voltage stabilizes before performing ZERO. Ensure the system is pumped to base pressure. If the sensor offset voltage exceeds ±1.4V, replace the pressure gauge. Also, ensure that the safety mode is not active and that PRESSURE CONTROL mode is selected. Finally, perform LEARN.
General| Brand | VAT |
|---|---|
| Model | 61228-KAGG-0002 |
| Category | Control Unit |
| Language | English |
