To Next PageTo Next PageWhy does ZERO not work on my VAT 650?
If ZERO does not work on your VAT Control Unit, ensure the valve is in the open position and the chamber is at base pressure before performing ZERO. Also, check if ZERO is enabled.
What does it mean if the Network Status LED is flashing red (time out) on my VAT 650 Control Unit?
If the Network Status LED on your VAT Control Unit is flashing red, it indicates a timeout. Check if the I/O connections are in a timeout state and reestablish them.
What causes the VAT Control Unit to display «E 20» (fatal error - limit stop of valve unit not detected)?
If the VAT Control Unit displays «E 20», indicating a fatal error where the limit stop of the valve unit is not detected, replace the actuator according to the procedures outlined in «Maintenance procedures».
Why is the pressure reading wrong or negative on my VAT 650 Control Unit?
Incorrect or negative pressure readings on your VAT Control Unit may arise from several reasons: * Disconnected or faulty sensor(s). * Incompatible 2-sensor version at the valve controller. * ZERO calibration not performed. * Insufficient power supply to the sensor(s). To solve this, refer to the electrical connection guidelines, check the valve version, verify the configuration, perform ZERO when base pressure is reached, and verify the sensor supply voltage.
What to do if CLOSE VALVE does not work on VAT 650?
If the CLOSE VALVE function is not working on your VAT Control Unit, it might be due to safety mode or maintenance mode being active. Ensure that power is supplied to the motor.
What to do if Network Status LED is off (Device is not on line) on VAT 650 Control Unit?
If the Network Status LED is off, indicating the device is not online, connect the valve to DeviceNet® and ensure that power is provided.
What 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 Controller when no dots are lighted on the display?
To fix a VAT Controller when no dots are lighted on the display, connect the valve to the power supply according to «Electrical connection» and make sure that the power supply is working.
Why is pressure not ‘0’ after ZERO PRESSURE CONTROL on my VAT 650 Control Unit?
If the pressure is not ‘0’ after performing ZERO PRESSURE CONTROL on your VAT Control Unit, wait until the sensor voltage stabilizes, ensure the system is pumped to base pressure, and verify the sensor offset voltage does not exceed ±1.4V. Also, ensure safety mode and PRESSURE CONTROL are selected, and perform LEARN.
Why is the PRESSURE CONTROL not optimal on my VAT 650?
If the PRESSURE CONTROL on your VAT Control Unit is not optimal, consider the following: - Perform the «Setup procedure» completely. - Perform LEARN (refer to «LEARN» for details). - Perform ZERO before repeating LEARN (refer to «Setup procedure» for details). - Repeat LEARN (refer to «LEARN» for details) ensuring stable gas flow. - Tune the valve for your application (refer to «Tuning of control performance» for details). - Ensure the sensor range is suitable (controlled pressure should be >3% and < 98% of sensor full scale). - Use a shielded sensor cable to minimize noise.
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.
