Honeywell TC-IDK161 16-Channel AC Digital Input Module

Product Description

The Honeywell TC-IDK161 is a 16-channel AC digital input module designed to monitor discrete field signals in industrial control systems. It accepts nominal 120 VAC inputs, with individually isolated channels for signal separation. The module provides programmable input delays, defined switching thresholds, and a 36-position terminal block connection using the TC-TBCH terminal block.

Technical Specifications

Input Signal Characteristics

The TC-IDK161 monitors AC discrete signals within the specified voltage and frequency range. Its 79-132 VAC on-state range defines the voltage conditions for recognizing an active input, while the maximum off-state voltage of 20 V defines the specified inactive-state limit. The input current thresholds and impedance provide additional criteria for evaluating field signal compatibility.

The module supports IEC Type 1+ input compatibility. Its specified short-duration inrush response helps distinguish transient current behavior from a valid input activation, provided the current decays within the stated conditions.

Input Timing and Isolation

Programmable input delays allow the recognition timing to be adjusted for different signal transition requirements. The off-to-on and on-to-off delays have separate adjustment ranges, so signal activation and deactivation can be evaluated independently. Hardware delay and filter time also affect the overall response.

The specified 2546 VDC isolation rating applies to channel-to-channel and user-to-system isolation during a 1-second test. This rating describes the stated test condition and should not be interpreted as a continuous operating voltage rating.

Connection and Power Requirements

The module uses a 36-position TC-TBCH terminal block for field connections. Confirm the terminal assignment and wiring arrangement before connecting field devices, as the supplied specifications do not identify individual terminal positions.

Power planning should account for the listed backplane current draws at 5 VDC and 24 VDC, as well as the module's 4.9 W power dissipation. These values describe different electrical parameters and should not be treated as interchangeable.

Frequently Asked Questions

Q: What input signals does the Honeywell TC-IDK161 accept?

A: It accepts AC digital input signals with a nominal voltage of 120 VAC. The specified on-state range is 79-132 VAC at 47-63 Hz.

Q: Which terminal block is specified for the TC-IDK161?

A: The specified connection is a 36-position TC-TBCH terminal block. Verify the terminal assignment against the applicable wiring documentation before installation.

Q: Can the input response time be adjusted?

A: Yes. The specified programmable off-to-on delay is 1-10 ms, and the on-to-off delay is 9-18 ms. Hardware delay and filter time also contribute to the overall input response.

Other Attributes

• Series: Honeywell Experion PKS(C200,C300)
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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