5437-523 | Woodward | Analog Field Terminal Module

Configured for signal consolidation in TMR control architectures, the Woodward 5437-523 (Analog FTM) provides direct electrical execution of triple modular redundant output signal summation and latent fault detection within MicroNet platforms.

Hardware Specifications

Actuator Loop Feedback Response and Thermal Heat Sink Dissipation Profiles

The 5437-523 FTM interfaces with MicroNet TMR kernel outputs, summing redundant signals into a single field-facing output at the terminal blocks. To maintain signal integrity and optimize actuator loop feedback response, the module provides a high input impedance of 2.2 Mega ohm and a common-mode rejection ratio (CMRR) of -90 dB. The internal circuitry utilizes field-selectable jumpers to configure latent fault detection logic, ensuring that the control system can adapt to the specific impedance and load characteristics of the interfaced circuitry. Thermal heat sink dissipation profiles for the consolidated output stages must be maintained by ensuring adequate cabinet ventilation; the 1500 VAC continuous isolation rating provides protection against ground potential differences across the signal loop.

Frequently Asked Questions

Q: How are the latent fault detection parameters configured on the 5437-523?

A: Latent fault detection logic is configured via physical jumpers located on the FTM board. Settings must be selected based on the specific load and circuitry requirements of the connected analog device to ensure accurate fault monitoring.

Q: Can this FTM be used with non-TMR MicroNet control platforms?

A: The module is designed primarily for TMR kernels where it functions to consolidate redundant signals. Use in non-TMR applications requires verification of kernel signal compatibility to ensure the summing logic does not impact single-channel signal fidelity.

Field Installation Guidelines

• Mounting: Secure the FTM to a standard DIN-rail or mounting plate within the control cabinet. Ensure sufficient clearance for the 6.25 in x 3.50 in x 2.75 in housing to allow for jumper access and cable termination.
• Jumper Configuration: Before connecting field wiring, set the internal jumpers to match the required latent fault detection logic for the intended output circuit. Consult the site-specific control schematic to determine the correct jumper position.
• Wiring: Connect the three kernel outputs to the designated FTM inputs. Ensure signal cables are shielded, with the shield terminated at the designated chassis ground point to maintain the -90 dB CMRR.
• Isolation: Verify that the 1500 VAC continuous isolation is not compromised by routing field wiring in proximity to high-voltage AC power lines. Maintain strict separation between analog signal loops and power distribution cabling.