The Yokogawa ASD143-P00, also cataloged as the ASD143 digital input module, operates as a dedicated hardware component for NAMUR-compliant digital signal acquisition and intrinsic safety barrier isolation within CENTUM and ProSafe control platforms.
Suffix Breakdown & Model Matrix
The ASD143-P00 designation defines the 16-channel digital input hardware configuration equipped with an integrated intrinsic safety barrier for hazardous-area installations. The base part number ASD143 establishes the core printed circuit assembly architecture.
Hardware Specifications
Parameter
Specification
Model
ASD143-P00
Brand
Yokogawa
Origin
Japan
Weight
0.5 kg
Dimensions
3.8 x 12.7 x 15.2 cm
Operating Temp
Standard industrial rack limits
Power Consumption
150 mA (5 V DC), 110 mA (24 V DC)
Channels
16 (isolated)
Input Type
NAMUR (IEC 60947-5-6)
Withstand Voltage
1500 V AC
Input Response Time
15 ms
Pushbutton ON Detection
>= 20 ms
Max Switching Frequency
25 Hz
Channel-to-Channel Isolation and Input Signal Processing
The module maintains complete channel-to-channel electrical isolation and incorporates an internal barrier providing intrinsic safety compliance for hazardous zones. Input signal processing supports NAMUR switching standards with a fast response time of 15 ms, a pushbutton ON detection threshold of 20 ms, and a maximum switching frequency of 25 Hz while withstanding up to 1500 V AC surge isolation.
Frequently Asked Questions
Q: What input standards are supported by the ASD143-P00 module channels?
A: The module supports NAMUR (IEC 60947-5-6) compatible input standards across all 16 isolated channels.
Q: What is the current consumption profile of the module across its voltage rails?
A: The module consumes 150 mA from the 5 V DC power rail and 110 mA from the 24 V DC power rail.
Q: Does the module support pulse counting applications?
A: Yes, it supports pulse counting and pushbutton signal detection up to a maximum switching frequency of 25 Hz.
Field Installation Guidelines
Ensure the control rack is fully de-energized before inserting or removing the module. Align the printed circuit board with the designated system slot guides and push firmly until the backplane connectors engage. Secure the module using the integrated mechanical fasteners. Ensure proper shielding and grounding of field wiring to maintain intrinsic safety barriers and prevent electromagnetic interference in hazardous environments.
