The Schneider Electric TWDDMM24DRF discrete I/O module adds substantial control capability to your Twido PLC system. This unit features 16 discrete inputs operating at 24 V DC and 8 relay outputs for actuator control. It offers a flexible solution for applications needing both digital signal reading and output switching within a single compact module. The TWDDMM24DRF comes with a spring terminal block for secure and rapid wiring, simplifying the installation process.
Understanding the detailed technical specifications is crucial for proper system integration.
Input Characteristics:
Discrete Inputs: 16, 24 V DC (sink or source logic)
Input Voltage Limits: 20.4...28.8 V
Input Current: 7 mA per channel
Input Impedance: 3.4 kOhm
Filter Time: 8 ms for both state 0 and state 1
Output Characteristics:
Discrete Outputs: 8, relay (Form A / NO)
Output Commons: 2 common points (1I/2O configuration)
Current per Channel: 2 A
Maximum Current per Common: 7 A
Contact Resistance: 40000 µOhm
Response Time: ≤ 7 ms
Isolation and Ratings:
Insulation: 1500 Vrms for 1 minute between channel and internal logic (by photocoupler)
Marking: CE
The module draws specific currents depending on its operational state. The current consumption is 10 mA at 5 V DC in the OFF state for all inputs/outputs. When all inputs are active, it consumes 45 mA at 24 V DC and 65 mA at 5 V DC. This predictable power draw facilitates straightforward power supply dimensioning for your entire control panel.
Recommended Installation Steps:
Mounting: Secure the TWDDMM24DRF module onto a standard 35 mm DIN rail inside your control cabinet.
Wiring: Use the spring terminal block for all I/O connections. Ensure proper wire gauge and stripping length for a reliable connection.
Input Wiring: Connect your 24 V DC sensors to the input terminals. The module accepts both sink and source wiring configurations.
Output Wiring: Connect the loads to the relay output terminals (8 NO contacts). Pay attention to the shared commons (2 commons for every group of 4 outputs).
Power: Supply the necessary power to the module via the backplane or direct connections.
Check: Verify all connections against the terminal block layout diagram before powering up.
The module is designed for use in standard industrial environments.
Operating Temperature: 0...55 °C
Storage Temperature: -25...70 °C
IP Degree of Protection: IP20 (suitable for installation inside a control panel)
Product Weight: 0.14 kg (Approx. 0.20 kg with packaging)
Product Certifications: CSA, UL
Schneider Electric TWDDMM24DRF discrete I/O module
Built-in spring terminal block for I/O connections
Note: Cables, software, and mounting accessories are sold separately.
Q1: What is the difference between the TWDDMM24DRF and a base controller?
The TWDDMM24DRF is an expansion I/O module that adds extra input and output points to a Twido system. In contrast, a base controller includes a processor and power supply. This module must be connected to a controller to function.
Q2: Can the TWDDMM24DRF handle high-current loads directly?
Each relay output can switch up to 2 A, and a total of 7 A per common is allowed. For loads exceeding this, use an intermediate contactor or relay to protect the module's internal contacts.
Q3: Does the TWDDMM24DRF use spring or screw terminals?
The module is equipped with a spring terminal block for I/O connections. This terminal type allows for fast and tool-less wiring. Simply press the spring to insert or remove the wire.
Q4: What does "sink or source" input logic mean for the TWDDMM24DRF?
This means the inputs can be wired to either a positive (source) or negative (sink) common. This offers great flexibility to connect the module to various types of sensors from different manufacturers.
Q5: How long is the response time for the relay outputs?
The typical response time for the relay outputs is less than 7 ms, making the TWDDMM24DRF suitable for applications that do not require microsecond-level reaction times.
| Brand Name | |
| Model No. | TWDDMM24DRF |
| Product Type | Discrete I/O Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
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