Description

Product Description

The controllers 8200-224 are labeled as Woodward incs servo position controllers (SPC) series. The main purpose of the 8200 224 model is to position two different actuators together, which are usually pneumatic or hydraulic. Please note that when you power the device, the required voltage to successfully power the controller should be 18 to 32 Vdc for optimal performance, typically 24 Vdc.

When using the device, it is necessary to consider all electrical specifications required for the 8200-224 model during operation, for example, for standard thermal loads, the power consumption of this model is usually 20 W. Specific environmental factors are also needed to prevent potential malfunctions in your controller, such as a humidity coefficient of 95% condensation.

When using the control, please specify the operating mode in which it is located, as there are four modes available for operation: calibration, operation, configuration, and manual travel mode. If you have connected the controller to the DeviceNet port, you can change the mode according to the request of the control system.

8200-224 can provide the required accuracy, response timing, and redundancy functions for integration into gas or steam turbine fuel valve control. 8200-224 can accept and process feedback signals from one or two redundant AC devices or a single DC device.

 

Affected Units

All SPC units are affected if configured as stated above and if a “fail fixed” response is not correct 　　for the system. 　　Affected P/N’s list: 　　8200-220, 8200-221, 8200-222, 8200-223, 8200-224, 8200-225, 8200-226, 8200-227. 　　Corrective Action 　　Field Correction: 　　For affected units (those configured to use Analog, CANopen or DeviceNet as Primary and with 　　Position Demand Fault Response configured as ALARM): 　　- For most systems, the correct response to losing both inputs would be to move the valve or 　　actuator to the shutdown position. 　　- If the desired response in a dual-failure scenario is to move the valve to the shutdown 　　position, the Position Demand Fault Response should be updated by setting this value to 　　“SHUTDOWN” instead of “ALARM.” 　　Permanent Corrective Actions: 　　The SPC firmware has been updated so that the Position Demand Fault Response setting of 　　ALARM will result in the SPC outputting the 0% demand current when both position inputs are 　　lost. This change will be made to all new production units. The field correction noted above 　　resolves the issue, however Woodward has released a Service Pack for customers wishing to 　　update the firmware in existing units. Please see Application Note 51628 for instructions 　　Customer Action 　　If the configuration needs to be updated as described above, please use the SPC Service Tool 　　(downloadable from Woodward’s web site or contact your authorized representative). 　　If you desire to install the revised firmware, please download Application Note 51628 for 　　instructions. You can also contact your Woodward supplier or Woodward representative if you 　　need further assistance. 　　If you wish to return the SPC to Woodward for the firmware update, this will be performed at no 　　charge during the warranty period. Please contact your Woodward supplier or your Woodward 　　representative to discuss this option.

Model recommendation:

WOODWARD 505 8200-1302