Woodward 9905-971 Rev(L) | DIN Rail Mount Discrete Input Controller
Manufacturer: Woodward
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Part Number: 9905-971 Rev(L)
Condition：New with Original Package
Product Type: DIN Rail Mount Discrete Input Controller
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Country of Origin: GERMANY
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Description
The Woodward 9905-971 Rev(L) is a high-performance LinkNet discrete input module, designed for industrial automation and distributed control in power generation and complex industrial systems. Each input channel is opto-isolated to ensure noise immunity, providing accurate and reliable detection of digital signals such as status updates, alarms, and on/off conditions. Moreover, the module supports both dry contacts and voltage inputs, offering flexible integration with diverse field devices.
With a compact DIN rail design, the module simplifies installation and conserves panel space. In addition, optional dual-channel redundancy ensures high availability for mission-critical systems. This robust module operates reliably in extreme environmental conditions, making it ideal for harsh industrial and marine applications.
Technical Specifications – Woodward 9905-971 Rev(L)
| Parameter | Details |
|---|---|
| Model | 9905-971 Rev(L) |
| Manufacturer | Woodward |
| Type | LinkNet Discrete Input Module |
| Operating Voltage | 24 VDC |
| Current Rating | 50 mA per channel |
| Number of Channels | 8 opto-isolated inputs |
| Input Type | Dry contacts and voltage signals |
| Update Time | 5 ms |
| Time Stamping Resolution | 1 ms |
| Environmental Range | –40 °C to +70 °C |
| Enclosure Type | IP20 (panel installation) |
| Dimensions | 100 mm width (compact DIN rail design) |
| Mounting | DIN rail, space-saving design |
| Redundancy Support | Optional dual-channel redundancy |
| Certifications | CE, UL listed |
| Special Features | Surge protection, EMI resistance, real-time monitoring |
FAQ
Q: What is the primary purpose of the 9905-971 Rev(L)?
A: It collects digital signals from field devices and transmits them to control systems.
Q: How many input channels are available?
A: Eight opto-isolated discrete input channels for reliable signal acquisition.
Q: What types of signals does it accept?
A: Both dry contacts and voltage signals from various sensors.
Q: Can it operate in extreme temperatures?
A: Yes, the module functions reliably between –40 °C and +70 °C.
Q: Does it support redundancy for mission-critical systems?
A: Yes, optional dual-channel redundancy is available for enhanced reliability.