Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
ABB Bailey NTDI21 Product Overview
Product Introduction
The ABB Bailey NTDI21 is a high-performance digital input module designed for industrial automation and control systems. It is part of ABB’s Bailey INFI 90 series, widely used in power generation, process control, and manufacturing applications. This module ensures reliable data acquisition and seamless integration with distributed control systems (DCS).
Product Specifications
The NTDI21 module features robust construction, high noise immunity, and flexible configuration options. Below are the detailed technical parameters:
| Parameter | Specification |
|---|---|
| Input Channels | 16 digital inputs |
| Input Voltage | 24V DC (standard), 48V DC (optional) |
| Isolation Voltage | 1500V AC (channel-to-channel) |
| Response Time | < 10ms |
| Power Consumption | 5W (typical) |
| Operating Temp. | -20°C to +70°C |
| Storage Temp. | -40°C to +85°C |
| Humidity Range | 5% to 95% (non-condensing) |
| Dimensions | 120 x 100 x 50mm |
| Weight | 0.5kg |
| Certifications | CE, UL, IEC 61010 |
Applications
The ABB Bailey NTDI21 is widely used in the following industries and systems:
-
Power Plants: Monitoring circuit breakers, relays, and alarms.
-
Oil & Gas: Safety interlock systems and valve position feedback.
-
Manufacturing: Machine status detection and fault diagnostics.
-
Water Treatment: Pump and valve control.
-
Transportation: Signal monitoring in rail and metro systems.
Product Advantages
-
High Reliability: Designed for 24/7 operation in harsh environments.
-
Fast Response: Low latency (<10ms) for real-time control.
-
Modular Design: Easy integration with Bailey INFI 90 systems.
-
Noise Immunity: Opto-isolated inputs reduce signal interference.
-
Wide Voltage Range: Supports 24V/48V DC inputs.
-
Compact & Lightweight: Saves panel space without compromising performance.
Frequently Asked Questions (FAQ)
-
What is the maximum input voltage for NTDI21?
The module supports up to 48V DC (optional). -
Can NTDI21 be used in hazardous environments?
Yes, it meets IEC 61010 standards for industrial safety. -
How many input channels does NTDI21 have?
16 digital input channels. -
What is the isolation voltage between channels?
1500V AC for channel-to-channel isolation. -
Is NTDI21 compatible with third-party DCS systems?
It is optimized for Bailey INFI 90 but can interface with other systems using adapters. -
What is the operating temperature range?
-20°C to +70°C. -
Does NTDI21 support hot-swapping?
No, power must be turned off before installation/replacement. -
How is the module mounted?
DIN rail or panel mounting (hardware included). -
What certifications does NTDI21 hold?
CE, UL, and IEC 61010. -
Can NTDI21 handle AC inputs?
No, it is designed for DC inputs only.
Recommended Related Models
Below are 6 similar or complementary modules from the ABB Bailey series:
| Model | Description | Key Features |
|---|---|---|
| NTDO21 | Digital Output Module | 16 channels, 24V DC, 0.5A per channel |
| NTAI21 | Analog Input Module | 8 channels, 4-20mA/0-10V input |
| NTAO21 | Analog Output Module | 4 channels, 4-20mA output |
| NTRM21 | Relay Output Module | 8 channels, 250V AC/30V DC |
| NTDI22 | Enhanced Digital Input Module | 32 channels, faster scanning |
| NTPD21 | Power Supply Module | 24V DC, 5A output |
Popular ABB Models in the Same Brand
These are 6 widely used ABB modules across different series:
| Model | Series | Application |
|---|---|---|
| DSQC652 | IRC5 Robotics | Robot I/O communication |
| CI854 | 800xA Control | Ethernet communication module |
| PP845 | Advant OCS | Process control I/O |
| SAFE120 | Safety Systems | Emergency stop monitoring |
| REF615 | Relion Protection | Feeder protection relay |
| ACS880 | Drives | Industrial AC drive |
