Description
The Honeywell TK-IDK161 is a high-performance 16-point isolated AC input module designed for industrial automation architectures, such as Honeywell’s Experion C200 and related distributed control systems. It serves as a reliable interface for monitoring the on/off status of AC-powered field devices—such as pumps, motor starters, limit switches, and relays—providing robust signal conditioning and optical isolation to protect controller logic from high-voltage transients and electrical noise.
Technical Specifications
Input Type: 120 VAC / 220 VAC Isolated AC Input
Number of Channels: 16 Input Channels
Frequency Range: 50 / 60 Hz
Input Current: ~15 mA nominal per channel
Backplane Power Consumption: 125 mA @ 5.1 VDC; 3 mA @ 24 VDC
Operating Temperature: 0°C to 60°C
Isolation: Optically isolated channels to prevent ground loops and noise propagation
Mounting Type: DIN Rail / Control Module Chassis Slot
Country of Origin: USA
MTBF: > 100,000 Hours
Usage Instructions
➤ Ensure all system power and field AC power supplies are completely de-energized before installing or removing the TK-IDK161 module.
➤ Verify that field wiring connections match the rated voltage specifications (120/220 VAC) and adhere to local electrical codes.
➤ Secure the module firmly into its designated chassis slot or mounting assembly to guarantee secure backplane connectivity and grounding.
➤ Configure input filter parameters and channel mapping via the engineering station software prior to system startup.
➤ Conduct routine technical checks on terminal blocks and front-panel status indicators semi-annually to monitor loop integrity and operational health.
Frequently Asked Questions
Q: What is the primary purpose of the TK-IDK161 module?
A: It is designed to capture and convert 120/220 VAC discrete signals from field devices into reliable digital data that the control system can process safely.
Q: Does the module protect against electrical noise and voltage spikes?
A: Yes, each input channel is optically isolated, which provides superior immunity against electrical noise, ground loops, and voltage transients common in heavy industrial environments.
Recommended Alternatives
For similar AC input and discrete signal acquisition requirements within Honeywell control architectures, consider the following alternative models: TC-IDK161, TK-OOD161, TK-IAH161, TSDI-1624, FS-SDI-1624, CC-SDI-161, CC-PAOH01, CC-PAON01, CC-TDOR01, and TC-CCR014.


