Description
As a Replacement Input Fuse
This type of T9901 is a dedicated spare part for ICS Triplex’s AAdvance series control systems, mainly responsible for circuit protection of specific modules.
- Targeted Matching Protection: It is specially designed to match T9801/2/3 and T9831/2/3 modules. When the internal circuit of these modules has abnormal current due to short circuits or component aging, the 50mA-rated fuse will quickly disconnect the circuit. This avoids damage to the core components of the expensive control modules, thereby reducing maintenance costs and preventing system downtime caused by module burnout.
- Practical Spare Part Attributes: As an original factory-sealed product, it has high compatibility and reliability, which can avoid problems such as poor protection effect or module failure caused by using non-original fuses. Its small size and light weight make it easy to store in the maintenance warehouse of industrial sites, facilitating timely replacement when a fault occurs.
ICS TRIPLEX T9801
As a Digital Output Module
This model is a high-reliability module for industrial safety systems, with redundancy and fault tolerance, which can meet the strict requirements of critical industrial control.
Key Technical Characteristics
- TMR Redundancy for High Safety: Adopting a Triple Modular Redundancy (TMR) architecture, the module runs three identical circuit units simultaneously. It judges the output signal through the consistency verification of the three groups of data. Even if one circuit unit fails, the other two can still ensure the normal output of the signal. Coupled with SIL 3 certification in line with IEC 61508, it can fully meet the safety control needs of high-risk industrial scenarios.
- Stable Signal Output & Isolation: Equipped with 16 digital output channels, it can connect multiple field actuators such as solenoid valves and alarm devices to realize centralized control of multiple equipment. The 1500VDC channel-to-channel isolation design effectively suppresses signal interference between different channels, ensuring the accuracy of control signals. Meanwhile, the response time of less than 10ms enables the module to quickly send control instructions when an abnormal situation is detected on site.
- Easy Maintenance & Environmental Adaptability: The hot-swappable design allows maintenance personnel to replace the module without shutting down the entire system, which greatly shortens the maintenance time. In addition, it can operate stably in the environment of -20°C to +60°C and non-condensing humidity of 5%-95%, which is suitable for industrial sites with large temperature changes such as chemical plants and outdoor power stations.
Application Scenarios
- When used as a fuse, in a chemical plant’s reaction kettle temperature control system, if the T9802 module connected to the temperature sensor has an overcurrent fault, the T9901 fuse will blow immediately to cut off the circuit, protecting the T9802 module from being burned out, thus avoiding the interruption of the temperature monitoring of the reaction kettle.
- When used as a digital output module, in an oil refinery’s pipeline transportation system, its 16 channels can be connected to the emergency cut-off valves of 16 branch pipelines. When the pressure sensor detects pipeline overpressure, the module can quickly send a closing signal to the corresponding valve. The TMR structure ensures that the signal will not be lost due to module failure, preventing oil leakage and other major safety accidents.
ICS TRIPLEX T9801
Installation & Selection Notes
- Distinguish Types Clearly: Before purchasing, confirm the actual demand. If it is to maintain T9801/2/3 and other modules, select the 50mA replacement fuse; if it is to add or replace the signal output unit of the safety system, choose the digital output module to avoid model mismatch.
- Follow Fuse Installation Rules: When installing the fuse, power off the matching module first. Do not mix it with fuses of other current ratings, otherwise it may fail to protect the circuit or cause frequent fuse blowing.
- Abide by Module Current Limits: For the digital output module, the current of a single channel shall not exceed 0.5A, and the total current of all channels shall not exceed 8A. It is necessary to reasonably allocate the load during configuration, and avoid connecting high-power equipment to a single channel.
- Standardize Hot-Swapping Operations: When replacing the digital output module, avoid plugging and unplugging during the peak period of signal output. After replacement, check whether the module is installed in place and whether the signal transmission is normal to prevent transient signal interruption from affecting the on-site control.
