ABB NWIO-01 64168533 Watchdog & I/O Module
Place of Origin:
SWEDEN
Brand Name:
ABB
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Product Description
ABB WATCHDOG & I/O
ABB NWIO-01 64168533 Watchdog & I/O Module
Watchdog and digital I/O module for ABB control applications requiring monitored operation and relay-based digital I/O.
Type: NWIO-01 Product ID: 64168533 Function: Watchdog & I/O
Product Function
ABB NWIO-01 combines digital I/O with watchdog supervision. Its watchdog circuit monitors the operation of the associated control environment and can control the DO2 relay output when watchdog operation is enabled.
Digital I/O Provides isolated digital input channels and relay-based digital outputs for the control interface.
Watchdog Supervision Monitors the defined control and communication functions and provides a dedicated watchdog output path.
DO2 Watchdog Path DO2 can be assigned to watchdog operation instead of normal software-controlled output operation.
System Application & Failure Scenarios
NWIO-01 is used in ABB AC 800M control environments with CI858 and is also identified as a Special I/O Link device in ACS 600 MultiDrive systems.
- AC 800M / CI858 control applications.
- ABB ACS 600 MultiDrive Special I/O Link applications.
- Control systems where watchdog supervision and digital I/O are part of the installed architecture.
Why customers search for this part: NWIO-01 is commonly investigated as a replacement when digital I/O behavior or watchdog supervision becomes abnormal in a system using this module.
Downtime risk: a failed watchdog or I/O module can affect the control sequence or connected functions; the actual machine shutdown response depends on the configured system logic.
Downtime risk: a failed watchdog or I/O module can affect the control sequence or connected functions; the actual machine shutdown response depends on the configured system logic.
Watchdog fault The monitored control operation does not maintain the expected watchdog condition.
I/O fault A connected digital input or relay output does not operate as expected.
Replacement search The installed NWIO-01 is identified by its type designation or Product ID during spare-part procurement.
Technical Specifications
| Manufacturer | ABB |
| Type Designation | NWIO-01 |
| Product ID | 64168533 |
| Product Description | Watchdog & I/O module |
| Digital Inputs | 2 |
| Digital Input Voltage | 24 VDC or 115/230 VAC |
| Digital Input Isolation | Individually isolated |
| Digital Input Filtering | 1 ms or 8 ms, selectable |
| Digital Outputs | 2 relay outputs |
| DO Output Rating | 8 A at 24 VDC resistive load; 0.4 A at 120 VDC resistive load; 2000 VA at 250 VAC |
Additional Technical Specifications
| Maximum Continuous Output Current | 2 A |
| Watchdog Timer | 1 s or 0.2 s |
| Watchdog Output | Connected to relay output DO2 |
| Watchdog Selection | Enabled by switch; DO2 can operate as a normal software-controlled digital output or as a watchdog output |
| Frame Size | Spare Parts |
| Product Net Weight | 0.2 kg |
Configuration & Control
The module is handled in AC 800M through the NWIO1DI and NWIO1DO function blocks. NWIO1DI is used for reading the digital input signals, while NWIO1DO handles the digital output functions and watchdog selection.
NWIO1DI Reads the digital input signals and associated watchdog status information.
NWIO1DO Controls the digital output functions and watchdog selection.
Installation & Wiring
Digital input connection
The two digital inputs support 24 VDC or 115/230 VAC and are individually isolated. Input filtering can be selected through the module configuration.
Watchdog configuration
Watchdog operation is selected using the module's switch. The watchdog setting and associated jumper arrangement should be matched to the configured control application.
Output connection
The two digital outputs are relay outputs. When watchdog operation is selected, DO2 is used by the watchdog circuit.
NWIO-01 64168533 Manual & Datasheet Reference
For technical reference, the ABB NWIO-01 64168533 manual/datasheet information covers the module function, digital I/O arrangement, watchdog operation, function blocks and configuration details needed when checking an installed unit or preparing a replacement.
FAQ
What is ABB NWIO-01 64168533 used for?
It is a Watchdog & I/O module that combines digital I/O with watchdog supervision for applicable ABB control systems.
How many inputs and outputs does NWIO-01 have?
NWIO-01 has two digital inputs and two relay outputs.
Can DO2 be used as a normal digital output?
Yes. DO2 can operate as a normal software-controlled output or be assigned to the watchdog function.
What watchdog settings are available on NWIO-01?
The available watchdog time constants are 1 s and 0.2 s, with 1 s as the default setting.
What information should I send when requesting an NWIO-01 replacement?
Please provide the Part Number, Quantity, Destination, Required Date and Machine/System Model so the quotation can be checked against your requirement.
Delivery & Warranty
Testing Product identification and basic condition checks before shipment.
Packaging Protective industrial packaging for transport.
DOA Report arrival damage or initial functional issues promptly with product and unpacking information.
Warranty Coverage applies to confirmed product quality issues under AMIKON warranty terms.
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