Product Short Description
Product Name
INTERBUS-ST/STME digital input module, 230 VAC, 16 channels, 3-conductor connection, article reference 2721125; source string also appears as IBSTME230DI1632721125.
Product Introduction
This module acquires 16 AC digital input signals at 230 VAC for INTERBUS networks. It transfers input states to the INTERBUS master through the ST local bus. The STME variant is intended for harsh control cabinets where standardized INTERBUS-ST I/O and robust 230 VAC signal isolation are required.
Description
Technical Specifications
Number of inputs: 16.
I/O voltage: 230 VAC.
IEC operating range: 210 to 253 VAC.
Off-state range: 0 to 66 VAC.
On-state range: 170 to 253 VAC.
Typical input current per channel: 7 mA at 50 Hz.
Local-bus supply: 9 VDC from INTERBUS-ST local bus.
Typical local-bus current consumption: 100 mA.
Connection technology: 3-conductor, shielded; STME version uses the specified spring/push-in or screw terminal configuration confirmed by article 2721125.
Isolation test: 1500 VAC, 50 Hz, 1 minute between bus logic and inputs for the standard IB ST 230 DI 16/3 platform; confirm STME variant isolation rating from the ordered article.
Protection class: IP20.
Ambient temperature: 0 to 55°C for standard ST version; confirm STME article data when wider range is required.
Functional Features
Sixteen independently monitored 230 VAC digital inputs.
INTERBUS-ST automatic addressing and diagnostic reporting.
3-conductor wiring for safer neutral/phase/screen separation.
LED status through the INTERBUS station and master diagnostics.
Short-circuit and open-line detection according to INTERBUS configuration.
Application Scenarios
AC contactor, relay, and switch status acquisition.
Machine control panels with 230 VAC field devices.
Building and process automation using INTERBUS.
High-voltage digital sensing in industrial MCC cabinets.
Performance Parameters
Input recognition follows the 0/1 thresholds stated above.
Response time is determined by INTERBUS cycle time, input filter setting, and master configuration.
Per-channel current draw remains within the 7 mA typical value at 50 Hz.
Materials And Construction
Insulated module housing suitable for IP20 cabinet use.
Copper-alloy contacts with tin or nickel plating.
Removable terminal part and electronic module portion.
INTERBUS-ST connector interface for local-bus communication.
Working Principle
Each 230 VAC input passes through current-limiting and optoisolated detection circuitry. The module logic scans all 16 channels, evaluates on/off thresholds, and transmits state information over the INTERBUS-ST local bus. The master polls the station and updates the PLC input image.
Installation Requirements
Mount in an IP20 control cabinet on the INTERBUS-ST station bus.
Use 3-conductor shielded cable with proper earth connection.
Connect phase, neutral, and screen according to Phoenix wiring rules.
Set INTERBUS address through the station configuration, not by manual dipswitches alone.
Verify conductor size, torque, and terminal type for article 2721125.
Usage Precautions
Disconnect 230 VAC and local-bus power before wiring.
Do not mix 24 VDC and 230 VAC conductors in the same uncategorized bundle.
Confirm the exact STME article connection system because screw, spring, and push-in versions have different torque rules.
Perform insulation testing only with approved test points to avoid damaging optoisolators.
Replace with the identical article number to preserve voltage range and bus compatibility.
Reviews
There are no reviews yet.