RELIANCE 57C430 Pulse output module

Excitation values above 8 V (rms) are intended for transducers with low gain. The SPC RVDT/LVDT inputs accept 8 V (rms) maximum. When using higher gain devices, setting the excitation voltage higher than 8 V (rms) may cause the maximum RVDT/LVDT input voltage to be exceeded. Feedback Range Threshold Determines limits for the Feedback 1 Range Fault and Feedback 2 Range Fault. Feedback Fault Response Determines whether the Feedback Fault shutdown is used. If set to “alarm”, Feedback Fault is not displayed and only specific feedback faults such as Feedback 1 Open Fault appear on the Alarms and Shutdowns screen.

Latch feedback fault check-box 

Determines whether feedback faults are latching or non-latching. The affected feedback faults are Excitation Fault Feedback Fault, Feedback 1 Open Fault, Feedback 2 Open Fault, Feedback 1 Range Fault, Feedback 2 Range Fault, Feedback Tracking Fault 1, and Feedback Tracking Fault 2. Enable feedback open wire checking check-box Check to enable Feedback 1 Open Fault and Feedback 2 Open Fault. The openwire check is intended for transducers with isolated outputs only. If Feedback 2 is used, the Redundant Feedback Settings must also be configured.

Position Error Configuration 

The SPC continuously compares the position demand to the position feedback and generates position error faults if they do not match. The SPC implements two separate position error faults with independent thresholds and delays. Position Error Fault 1 is an alarm, and Position Error Fault 2 can be configured to be an alarm or shutdown. The position error settings are entered on the Position Error page of the Configuration File Editor.

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