XDFD/Q-9000 series intelligent handheld deviceDetailed product description：

XDFD/Q series intelligent handheld device:

It is an instrument that can replace the operator and servo amplifier in traditional DDZ automation control systems. Adopting on-chip system technology, the mechanism is simple, the performance is superior, the quality is reliable, and the dual digital and light column triple display is beautiful and eye-catching. It can be matched with various adjusters or DCS control systems at home and abroad as a backup manual output unit for host faults and maintenance. This series of instruments is divided into: D-type operation, Q-type operation, and hard hand operation.

The D-type manual controller calculates the control signal transmitted by the regulator or DCS and the valve position signal feedback from the actuator, and directly outputs forward and reverse electrical signals to drive the electric actuator, controlling the forward and reverse rotation of the motor, while outputting the valve position signal to the regulator. When the operator switches from automatic to manual mode, the status signal of the switch quantity is output to the regulator as the valve position tracking signal for the regulator.

The Q-type manual controller calculates the valve position signal from the control signal transmitted by the regulator or DCS and the feedback from the actuator, and outputs a linear current or voltage signal to directly drive the pneumatic valve, control the opening and closing of the valve, and output the valve position signal to the regulator. When the operator switches from automatic to manual, the status signal of the mountain switch is sent to the regulator as a valve position tracking signal.
Hard hand operation is controlled by an operator without automatic control, which only receives valve signals and outputs them through human-machine dialogue. The output signals can be forward and reverse electrical signals (D-type hard hand operation) or linear current and voltage signals (Q-type hard hand operation). And by receiving the valve position signal, the valve position is displayed to determine the valve opening.

Features of XDFD/Q-9000 series intelligent handheld device

The input signal can be arbitrarily specified and selected.
Automatic startup or manual startup can preset manual output values.
Manually assisted output.
Valve position feedback tracking output.
EM1 is a manual function that maintains the initial output value unchanged. After remote manual cancellation, it can remain manual or return to automatic mode.
EM2- Process manual function, initial value can be preset.
Valve position feedback error indication, valve fairy feedback disconnection can be automatically switched to manual mode.
Tracking error error indication.
When the main input is disconnected, the control signal automatically protects the motor and outputs a fault signal.
Two 16A bidirectional thyristors can be built-in in the table to directly control the forward and reverse rotation of the motor of the actuator.
All setting parameters can be saved for 10 years without loss.
The system automatically resets without any crashes.

Technical specifications of XDFD/Q-9000 series intelligent handheld device
Output signal: 4-20mA, 0-10mA
Regulator feedback input: 4-20mA, 0-10mA. 0-5V ， 1-5V
Valve position feedback input: 0-10mA, 4-20mA, 0-5V, 1-5V
Valve position feedback output: 4-20mA, 0-10mA or 0-5V, 1-5VDC
Manual/Automatic Status Output: Off, Automatic Status; Connected, in manual mode.
Remote manual input EM1: Low level, indicating effective EM1
Remote manual input EM2: Low level connection is valid: disconnection is invalid.
Power supply: 220VAC/50Hz or 24VDC