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- Schneider
- TM3DQ16R
- Discrete Output Module
- France
- 90 × 84.6 × 27.4 mm
- 0.145 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider TM3DQ16R is a 16-channel discrete output module for the Modicon TM3 platform, using relay outputs to interface a Modicon controller with external devices. It is suited to machine control panels where several independent ON/OFF loads need to be switched from the PLC program.
In a packaging machine, for example, the module can control solenoid valves, contactors, signal lamps, buzzers, and interposing relays according to the machine sequence. In a conveyor system, individual outputs can be assigned to motor-control circuits, pneumatic actuators, stack lights, or auxiliary equipment. The 16-channel arrangement is useful when the controller needs a relatively high number of discrete output points in one expansion module.
Because the outputs are relay-based, the module can be used for different types of suitable external circuits rather than being limited to a single transistor output switching arrangement. The actual voltage, current, load type, switching frequency, and common-circuit requirements should be checked before connecting field loads.
The TM3DQ16R is intended for compatible Modicon controllers and fits into the modular TM3 expansion architecture. For retrofit work, the existing output address assignment and field wiring should be documented before replacing the module so each controlled device remains mapped to the intended PLC output.
Technical Specifications
| ParameterSpecification | |
|---|---|
| Manufacturer | Schneider Electric |
| Model | TM3DQ16R |
| Product Family | Modicon TM3 |
| Product Type | Discrete Output Module |
| Number of Outputs | 16 |
| Output Type | Relay |
| Output Contact Type | Normally Open (NO) |
| Output Voltage | 24 V DC / 240 V AC |
| Output Current | 2 A per output |
| Output Common Current | 7 A maximum per common line |
| Connection Type | Removable screw terminal block |
| Output Turn-On Time | Max. 10 ms |
| Output Turn-Off Time | Max. 10 ms |
| Protection Degree | IP20 |
| Compatible Controllers | Modicon M221 / M241 / M251 / M262 |
| Dimensions | 90 × 84.6 × 27.4 mm |
| Weight | 0.145 kg |
Product Features
- Modicon TM3 discrete output module
- 16 relay output channels
- Normally open relay contacts
- Supports suitable 24 V DC and 240 V AC output circuits
- 2 A rated current per output
- 7 A maximum current per output common line
- Removable screw terminal connection
- Suitable for controlling discrete actuators and auxiliary circuits
- Compatible with Modicon M221, M241, M251, and M262 controllers
- Useful for applications requiring multiple relay-controlled output points
- Suitable for machine automation and equipment control
Working Principle
The TM3DQ16R receives output commands from the Modicon controller and uses its relay contacts to switch the corresponding external circuits.
Modicon Controller → TM3DQ16R → Relay Contact → Field Load
When the PLC program commands an output channel ON, the corresponding relay changes state and closes its normally open contact. This allows the connected control circuit to energize a suitable load such as a solenoid valve, contactor coil, indicator, or interposing relay.
When the command is removed, the relay returns to its normal state and interrupts the associated circuit.
The module therefore acts as the switching interface between the controller’s output logic and the machine’s external devices. For applications with several actuators, each relay channel can be assigned to a specific function in the PLC program, such as valve extension, motor enable, alarm lamp, conveyor control, or auxiliary equipment.
Role in a Modicon TM3 Control Architecture
The TM3DQ16R occupies the output side of a Modicon TM3 control system, translating PLC output commands into switched field circuits.
PLC Program → Modicon Controller → TM3DQ16R → Relay Outputs → Contactors / Valves / Indicators / Other Loads
| System ElementFunction | |
|---|---|
| Modicon Controller | Executes the machine control program |
| TM3DQ16R | Provides 16 relay output channels |
| Relay Contact | Switches the external control circuit |
| Solenoid Valve | Converts an electrical command into actuator movement |
| Contactor | Controls suitable motor or power circuits |
| Interposing Relay | Interfaces the PLC output with another circuit |
| Indicator Lamp | Displays machine or equipment status |
| Alarm / Buzzer | Provides discrete operator notification |
The output assignment depends on the application program and electrical design. Each field load should be matched to the appropriate output channel and relay operating limits.
Industrial Applications
| ApplicationTypical Use | |
|---|---|
| Packaging Machinery | Solenoid valves, indicators, and auxiliary control |
| Conveyor Systems | Motor-control signals and equipment commands |
| Assembly Machines | Pneumatic actuator and workstation control |
| Material Handling | Discrete actuator and equipment switching |
| Machine Tools | Auxiliary devices, valves, lamps, and control circuits |
| Pump Skids | Contactors, valves, alarms, and auxiliary equipment |
| Production Lines | Multiple discrete machine outputs |
| Motor Control Panels | Contactor and auxiliary relay control |
| HVAC Equipment | Fan, valve, damper, and alarm control circuits |
| Equipment Retrofit Projects | Expansion of relay-based digital output capacity |
Installation and Maintenance
- Confirm that the TM3DQ16R is supported by the installed Modicon controller and TM3 configuration.
- Verify that the machine application requires relay outputs rather than another output technology.
- Check the voltage and current requirements of every connected field load before wiring.
- Confirm that each output remains within the specified relay and common-line current limits.
- Identify the PLC output address assigned to every field device before replacing an existing module.
- Use the removable screw terminal connections according to the electrical design of the machine.
- Keep output wiring appropriately separated from high-power motor and drive cables where practical.
- Label each output channel according to the connected actuator, contactor, valve, lamp, or auxiliary device.
- During commissioning, activate each output individually and verify the corresponding field device response.
- Check relay operation if an output command is present but the connected load does not energize.
- Inspect the load circuit, fuse or protection device, terminal connection, and external device before assuming that the I/O module has failed.
- During maintenance, check relay-controlled circuits for loose connections, abnormal heating, contact wear, or loads that exceed the intended operating conditions.
Related Components
| ComponentFunction | |
|---|---|
| Modicon M221 Controller | Compact controller for TM3 output expansion |
| Modicon M241 Controller | Machine controller with TM3 I/O expansion |
| Modicon M251 Controller | Controller for modular machine automation |
| Modicon M262 Controller | Logic and motion controller with TM3 I/O |
| Solenoid Valve | Discrete actuator controlled by relay output |
| Contactor | Switches suitable motor or power circuits |
| Interposing Relay | Provides an interface between control and field circuits |
| Indicator Lamp | Provides visual equipment status |
| Buzzer / Alarm Device | Provides discrete operator notification |
| TM3 Digital Input Module | Provides field status signals to the controller |
Recommended Related Models
| Model / Product FamilyProduct Type | Typical Application |
|---|---|
| Schneider TM3DQ8R | Smaller relay-output applications |
| Schneider TM3DQ16T | 16-channel transistor output applications |
| Schneider TM3DQ32TK | Higher-density transistor output expansion |
| Schneider TM3DI16 | Applications requiring additional digital inputs |
| Schneider TM3DM24R | Mixed input and relay output applications |
| Schneider Modicon M221 | Compact controller with TM3 expansion |
| Schneider Modicon M241 | Machine controller for larger TM3 I/O configurations |
Key Advantages
- 16 relay output channels.
- Supports suitable DC and AC discrete control circuits.
- 2 A rated current per output.
- Removable screw terminal connection.
- Suitable for multiple actuator and auxiliary control points.
- Integrates with the Modicon TM3 architecture.
- Compatible with several Modicon controller families.
Technical FAQs
What type of loads can the TM3DQ16R control?
The relay outputs can be used for suitable discrete loads and control circuits, including solenoid valves, contactor coils, indicator devices, buzzers, and interposing relays. The actual load must remain within the applicable relay voltage and current limits.
Why would a relay output module be selected instead of a transistor output module?
Relay outputs can be useful when the application requires relay contacts or needs to switch suitable DC or AC control circuits. Transistor outputs are generally used for applications with different switching requirements, so the load type and switching characteristics should be considered during selection.
How should the 16 outputs be assigned in a machine program?
Each physical output should be mapped to a clearly defined machine function in the PLC program and electrical drawings. Typical assignments include solenoid valves, contactor coils, indicator lamps, alarms, and auxiliary equipment. Consistent channel documentation makes commissioning and troubleshooting easier.
What should be checked if one TM3DQ16R output does not activate its load?
First verify that the PLC program is commanding the correct output channel. Then check the output status, terminal connection, relay contact circuit, external power supply, protection devices, and field load. If the command and module status are correct but the load remains inactive, the problem may be in the external circuit rather than the controller program.