9905-020 WOODWARD
Especially for the 9906-121 synchronizer model, its designated power supply is at least 115 V AC and can withstand a maximum intake of 230 V/AC. The overall power consumption is rated at a maximum of 5 watts. This unit includes a set of outputs, relays, and simulations.
9906-121 is composed of a metal plate protection frame to protect the internal system of the module from any physical damage or invasive environmental factors, such as dust particles or excessive water vapor. The temperature range of the 9906-121 model is as low as -54 to 66 degrees Celsius or -65 to 150 degrees Fahrenheit.

The design height of this model is 210 millimeters, width is 315 millimeters, and depth is 44 millimeters. The device weighs approximately 2000 grams.
AX Control Inc. can provide a comprehensive protective warranty for this device, which is automatically effective at the time of purchaseOne of them includes Woodward Inc.’s 9905-026 model. This specific model is low voltage, with a voltage of 20-40 Vdc and a single actuator. The 9905-026 model is reverse acting, with an actuator current of 0-200 mA. If a speed trimming or jumper device is not connected in the internal structure of the controller, the shield is connected to terminals 23 and 24.

Before installing the controller, please ensure that the power is turned off and check the grounding; This should be measured by connecting the resistance of terminal 11 to the control frame and then measuring from terminal 15 to terminal 11. Many settings on this control are preset, please make sure that the rest and the gain potentiometer are in the middle position.
The current transformer installed in the equipment can obtain extremely high voltage, and the transformer should never be disconnected during the operation of the prime mover, which is crucial for the operation of the model. During the installation of this control, it is important to avoid using all plastic materials, vinyl materials, and anything else that can generate static electricity, while ensuring that static electricity is not accumulated on or around the body when around the circuit board.

If a fault speed signal coverage occurs during the operation of the controller, it should only be determined immediately after the prime mover and controller start that the fault speed sensor circuit has been implemented.
The 9905-025 model of the Woodward 2301A series is a reverse acting dual actuator system with an actuator current of 0-200 mA and does not provide a deceleration ramp. In this reaction system, the rated speed voltage needs to be set to 10% lower. If the actuator voltage is at the lowest setting, turn the rated speed potentiometer counterclockwise until the voltage slowly starts to reach the maximum setting; If the setting is at the maximum value, turn the rated speed potentiometer again, but turn it clockwise until the setting starts to move slowly to the minimum setting.

The isolation of DC DC isolation power supply allows for a wide voltage range without generating excessive heat; This isolation can also prevent the system from overheating. Many applications in the 2301A series cannot be controlled by a single control, so two controls must be connected to run satisfactorily.
If for any reason after connecting the prime mover and controller, the prime mover will not be able to start and the actuator will not start moving to the start fuel position, please check if the start fuel limit is set too low to meet the needs of the prime mover. If this is the case, slowly start turning the start fuel limit counterclockwise until the actuator starts.