HONEYWELL 2MLI-D21A-CC Digital Input Module

HONEYWELL 2MLI-D21A-CC Digital Input Module

Key Highlights & Core Features

Input Points: 8 points
Rated Input Voltage: DC24V
Rated Input Current: 4 mA
Operation Voltage Range: DC 20.4 ~ 28.8V (ripple rate < 5%)
On Voltage/Current: DC19V or higher / 3 mA or higher
Off Voltage/Current: DC11V or lower / 1.7 mA or lower
Input Resistance: Approximately 5.6 kΩ
Response Time (Off → On): 1ms/3ms/5ms/10ms/20ms/70ms/100ms (set by CPU parameter) Default: 3ms
Response Time (On → Off): 1ms/3ms/5ms/10ms/20ms/70ms/100ms (set by CPU parameter) Default: 3ms
Isolation Voltage: AC560V rms/3 Cycle (altitude 2000m)
Isolation Resistance: 10 MΩ or more by megger
Common Method: 8 point / COM
Proper Cable Size: Twisted pair 0.3~0.75 mm² (external diameter 2.8mm or less)
Proper Compressed Terminal: R1.25-3 (not allowed to use a sleeve attached compressed terminal.)
Current Consumption: 20mA
External Connection Method: 9 point terminal block connector (M3 X 6 screw)
Weight: 0.1 kg

The 2MLI-D21A-CC is a compact digital input module for the Honeywell ML-200 system. It accepts 8 DC 24V input signals 

from field devices such as sensors, switches, and pushbuttons. The "A" variant supports both current source and sink input 

wiring configurations, offering flexibility for various field device types.

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