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Lisa FrostSep 23, 2025
Why is the Network Status LED flashing red on my VAT 650?
- HharperjasonSep 23, 2025
If the Network Status LED on your VAT Control Unit is flashing red, indicating a timeout, you should reestablish I/O connections.
To Next PageTo Next PageWhy is the Network Status LED flashing red on my VAT 650?
If the Network Status LED on your VAT Control Unit is flashing red, indicating a timeout, you should reestablish I/O connections.
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 OPEN VALVE does not work on my VAT Control Unit?
If the OPEN VALVE function is not working on your VAT Control Unit, check if safety mode or maintenance mode is active. Provide power to the motor.
Why CLOSE VALVE does not work on my VAT 650 Control Unit?
If the CLOSE VALVE function is not working on your VAT Control Unit, check if safety mode or maintenance mode is active. Provide power to the motor.
Why 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.
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.
