Honeywell 900G01-0202 Contact Closure Digital Input Module

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ผู้ขาย:
Honeywell
ประเภท:
Digital Input Module
Country of Origin:
USA
Weight:
1500 g
แท็ก: Digital input module

จำนวน

Honeywell 900G01-0202 Contact Closure Digital Input Module

The 900G01-0202 is a self-powered 16-channel Digital Input module for the Honeywell HC900 controller. It is designed to interface directly with dry contacts, switches, and relays without requiring external field power.

Core Technical Specifications

Brand: Honeywell
Model Number: 900G01-0202
Product Type: Digital Input (DI) Module, Contact Closure
Inputs per Module: 16 Channels (Single-Ended)
Input Type: Dry Contact (Voltage-Free)
Voltage Supplied by Module: 15 VDC Normal (to External Contact)
Maximum Contact Resistance: 1000 Ohms
Switching Current: 2.6 mA Nominal
OFF to ON Response Time: 4 ms Maximum (excluding controller scan & backplane transmission)
ON to OFF Response Time: 6 ms Maximum (excluding controller scan & backplane transmission)
Galvanic Isolation: Between Field Wiring (Input/Output) and Module Logic
Common Terminals: 4 Terminals to Simplify Field Wiring Groups
Channel Status Indicator: Green LED per Channel (Illuminates when input circuit is closed/ON)
Module Status LED: Green Blinking (Active Scan), Red (Fault/Diagnostic)
Logic Inversion: Supported in Controller Software
Operating Temperature: 0°C to +60°C (Standard HC900 Range)
Power Supply: Powered from HC900 Backplane

Module Features & Design

Self-powered design provides 15VDC to the field contact, eliminating the need for separate external power supplies.
Accepts dry contacts (e.g., switch, relay, pushbutton) with resistance up to 1000Ω.
Fast response times (4ms ON, 6ms OFF) ensure accurate detection of contact state changes.
Four common terminals allow flexible grouping of field wiring for different signal sources.
Individual green LEDs per channel provide immediate visual feedback for contact closure status.
Galvanic isolation between field wiring and module logic protects the controller from electrical noise and transients.
Ideal for monitoring status of mechanical switches, float switches, and relay contacts.

Installation & Wiring Guidelines

Install in a compatible Honeywell HC900 rack. The module receives power from the backplane.
Connect one side of the dry contact to the desired input terminal on the module.
Connect the other side of the dry contact to one of the four common terminals.
Multiple contacts can share a common terminal to reduce wiring complexity.
Ensure the total contact resistance (including wire resistance) does not exceed 1000Ω.
For long wire runs, consider wire gauge to minimize loop resistance and ensure reliable operation.
The module is for voltage-free contacts only. Do not connect external voltage sources to the inputs.