To Next PageTo Next PageWhat does it mean when VAT Control Unit display shows «E 20» error?
The error code «E 20» on the VAT Control Unit indicates a fatal error where the limit stop of the valve unit was not detected. Replace the actuator to resolve this issue.
How to fix VAT Control Unit not responding to DeviceNet commands?
If the VAT Control Unit is not responding to DeviceNet® commands, check if the node number and baud rate are correct.
Why is the pressure reading wrong on my VAT Control Unit?
If the pressure reading on your VAT Control Unit is wrong or negative, verify the following: - Ensure the sensor(s) are properly connected. - Confirm if a 2-sensor version is present at the valve controller and verify configuration. - Perform ZERO when base pressure is reached. - Verify the sensor supply voltage.
What to do if Network Status LED is off on VAT Control Unit?
To solve the problem with the Network Status LED being off on your VAT Control Unit, connect the valve to DeviceNet® and ensure that power is provided.
Why is the Module Status LED off on my VAT Control Unit?
To fix the issue of the Module Status LED being off on your VAT Control Unit, connect the valve to DeviceNet® and ensure that power is provided.
How to troubleshoot no display on VAT Control Unit?
To troubleshoot a VAT Control Unit display with no lighted dots, connect the valve to the power supply and ensure the power supply is working.
Why is my VAT 650 Control Unit PRESSURE CONTROL not optimal?
Suboptimal PRESSURE CONTROL in your VAT Control Unit can occur due to several reasons. Ensure the «Setup procedure» is fully completed. Perform LEARN, and make sure ZERO was performed before LEARN, and that LEARN wasn't interrupted. Gas flow should be stable during LEARN. Tune the valve for the application. The sensor range should be suitable for the application, and a shielded sensor cable should be used.
What to do if my VAT Control Unit's pressure reading is wrong or negative?
Incorrect or negative pressure readings on your VAT Control Unit can stem from several factors. Refer to «Electrical connection» to check sensor connections. Verify the valve version and configuration on page 1, consulting «Setup procedure». Check if it is a 2 sensor version present at valve controller. See «Pressure control operation with 2 sensors». Perform ZERO when base pressure is reached, as detailed in «ZERO». Also, verify the sensor supply voltage.
What should I do if my VAT 650 displays «D C» or «D999» indicating the Motor Interlock is open?
If your VAT Control Unit displays «D C» or «D999», it means the Motor Interlock is open. Ensure that motor power is supplied to allow for operation. For details, refer to «Electrical connection».
What to do if my VAT Control Unit displays «E 21» (fatal error - rotation angle of valve plate limited during power up)?
If your VAT Control Unit displays «E 21», it indicates a fatal error because the rotation angle of the valve plate is limited during power up. Check if the valve plate is mechanically obstructed and resolve the obstruction.
General| Supply voltage | 24 VDC |
|---|---|
| Digital inputs | 8 |
| Digital outputs | 8 |
| Analog inputs | 4 |
| Analog outputs | 2 |
| Mounting | DIN rail |
| Output Voltage | 24 VDC |
| Current Rating | 2 A |
| Weight | 0.5 kg |
| Communication interface | RS-485 |
| Protocols | Modbus RTU |
| Protection | Short-circuit, overload |
Provides detailed specifications for the control and actuating unit.
Covers unpacking, system installation, and connector panel overview.
Details tightening torque, admissible forces, and mounting requirements.
Covers sensor connection requirements and electrical wiring details.
Covers CC-Link cable installation, connectors, network, and valve cluster connection.
Overview of valve cluster, operational modes, and basic behaviors.
Describes valve behavior during power up/failure and display information.
Essential steps for configuring the valve cluster for operation.
Configures unique cluster addresses and CC-Link parameters.
Adapting valve configuration and setting up ZERO/LEARN.
Managing position control, pressure control, and performance tuning.
Detailed adjustments for gain factor, sensor delay, setpoint ramp, and valve speed.
Details on CC-Link schematics, handshaking, buffers, and communication timing.
Overview and details of OUTPUT and INPUT buffers for PLC communication.
Identifies common failures, troubleshooting steps, and CC-Link warnings.
Recommended maintenance schedules for seals and valve cleaning.
Information on option boards, battery life, and replacement procedures.
A labelled diagram showing the main components of the valve.
Lists spare parts for control and valve units, including seals and boards.
Details available accessories like power supplies, software, and centering rings.
Outlines the warranty terms and conditions for VAT products.
