EN
- Overview
- Specifications
- Functional Description
- Applications
- Installation
- FAQ
- Recommended Products
Overview
Place of Origin: |
USA |
Brand Name: |
Woodward |
Model Number: |
5464-643 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Parameter |
Value |
|
Model |
5464-643 |
|
Product Type |
Discrete Input Module |
|
Dimensions |
2.5 × 24.6 × 26.1 cm |
|
Weight |
0.9 kg |
|
Number of Channels |
48 |
|
Input Type |
Optically isolated discrete input |
|
Input Current |
3 mA |
|
Port Type |
Dual port |
|
Indicator |
Red fault indicator |
|
Mounting Type |
Panel mount |
Functional Description
5464-643 is a Discrete Input Module developed by Woodward. Field switches and relays provide data to the module. Field wiring is isolated from the MicroNet circuitry by optical isolators in each channel, and the state of each discrete input is passed to the buffers via an optoisolator. The data for each channel is then obtained by the CPU via the VME interface. If all 48 DI modules in a chassis have Fault LEDs on during normal control operation, check the chassis' CPU module for a failure.
Applications
Thermal power plant: Boiler and turbine panels collect safety switches and breaker contacts centrally.
Heavy chemical plant: DCS systems use optical isolation to block interference from high-power inductive loads.
Substation / power distribution: High-voltage panels monitor power status with dual-port redundancy for safe trip routing.
Water treatment plant: Pump stations reduce battery load in unmanned rooms via low-power design.
Installation
Modules are inserted into chassis card guides and secured with top and bottom screws on the front panel. Built-in handles allow the module to be pulled outward for easy disengagement from the motherboard connectors.
Each 48-channel DI module connects to two 24 VDC FTMs via low-density cables. Channels are mapped sequentially to software (1–24 via J1, 25–48 via J2), ensuring direct one-to-one correspondence between field inputs and control logic.
FAQ
Q: What is the input current per channel of the 5464-643?
A: Input current is 3 mA.
Q: How is the field wiring isolated from the MicroNet circuitry in 5464-643?
A: Field wiring is isolated from MicroNet circuitry by optical isolators in each channel.
Q: How is the data obtained by the CPU from the module in 5464-643?
A: Each channel’s data is read by the CPU via the VME interface.
Q: What should be checked if all 48 DI modules in a chassis have fault LEDs on during normal operation in 5464-643?
A: Check the chassis CPU module, as it may be faulty and causing all DI fault indicators.
Q: What safety guarantee does the “DUAL PORT” design provide in 5464-643 network cabling?
A: Dual-port redundancy allows two independent links in a ring network; if one fails, data continues through the other without switching delay.
