Configured for analog signal acquisition and safety loop execution in ProSafe-SLS platforms, the Yokogawa AI-917-00 (AI91700 VDC Logic I/O Module) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
The model AI-917-00 (also designated as AI91700) belongs to the Yokogawa ProSafe-SLS safety instrumented control platform. Based on standard part number configuration rules, the base designation identifies the VDC Logic I/O Module form factor, while the specific suffix string encodes the channel allocation and hardware revision matrix.
Hardware Specifications
Parameter
Specification
Model
AI-917-00 / AI91700
Brand
Yokogawa
Origin
Industrial Standard Profile
Weight
0.35 kg (0.77 lbs)
Dimensions
Standard DIN-Rail / Rack Mount Profile
Operating Temp
-10 deg C to +60 deg C
Power Consumption
Standard VDC Backplane Bus Load
Product Type
VDC Logic I/O Module
Series
ProSafe-SLS Safety Control Platform
Process Control & Yokogawa ProSafe-SLS Integration
The hardware manages process variables through 2 channels of 0-20 mA inputs and 2 channels of 0-10 V inputs, operating within a 4-input/4-output structure. Galvanic isolation and fail-safe state execution mechanisms protect signal integrity and prevent erroneous field commands. Furthermore, channel-to-channel isolation and 4-20 mA HART loop protocol compatibility support high-integrity safety instrumented system (SIS) operations.
Frequently Asked Questions
Q: Does the VDC logic I/O module support hot-swap replacement under live system power?
A: No, system power and field wiring loops must be completely de-energized prior to extracting or inserting the Yokogawa AI-917-00 module to prevent electrical faults and safety system trips.
Q: How are the analog input channels partitioned on this hardware?
A: The module processes signals through a mixed configuration consisting of two current input loops (0-20 mA) and two voltage input channels (0-10 V).
Field Installation Guidelines
Mount the module securely within the designated ProSafe-SLS safety rack enclosure, ensuring proper physical engagement with backplane bus pins. Route 0-20 mA and 0-10 V signal wiring through shielded twisted-pair cables, keeping them physically separated from high-voltage power lines to minimize electromagnetic interference. Verify terminal torque specifications and grounding paths prior to system energization.
