Schneider TM3DQ8T 8-Channel Transistor Output Module

Schneider TM3DQ8T Digital Output Module for Modicon TM3 PLCs

Product Introduction

The TM3DQ8T belongs to the Schneider Electric Modicon TM3 series. It is a digital output module with eight transistor channels. Each channel delivers a 24 Vdc source signal. Moreover, the PNP output design matches common industrial wiring. This module switches loads such as relays, lamps, and small solenoids. Therefore, it handles many machine control duties.

Engineers pair this unit with Modicon M221, M241, M251, and M262 platforms. In addition, the removable screw terminal block simplifies field wiring. The 5.08 mm pitch keeps connections tidy. With a width of only 27.4 mm, it saves valuable DIN rail space.

Technical Specifications

The TM3DQ8T provides eight digital output channels. Its nominal voltage is 24 Vdc. Each channel supplies up to 0.5 A. Meanwhile, the transistor source configuration delivers PNP signals.

Response time reaches 450 µs maximum for both turn-on and turn-off. Consequently, the module suits fast switching tasks. Isolation between output and internal logic is rated at 500 V AC. However, no isolation exists between channels. Therefore, plan the load wiring with care.

Diagnostics cover module status and bus status. Besides, short-circuit and overload protection guard each output. These features reduce downtime during faults. Furthermore, the module draws 20 mA at 5 V DC from the TM3 bus when all outputs are on. With all outputs off, the bus current falls to 5 mA. Power comes through the TM3 bus, so no separate supply is required.

Mechanical and Environmental Parameters

The TM3DQ8T measures 90 mm high, 27.4 mm wide, and 84.6 mm deep. It weighs only 0.1 kg. Thus, it adds little weight to the cabinet. The protection rating is IP20. So, install it inside a clean enclosure.

Operating temperature ranges from 0 to +55 °C. Storage temperature ranges from -25 to +70 °C. These ratings fit typical factory floors. The removable screw terminal block has a 5.08 mm pitch. This design allows fast replacement without rewiring the whole strip.

Installation Guide

First, mount the module on a DIN rail next to the controller. Next, connect the TM3 bus connector. Then, wire the loads to the screw terminals. Tighten each screw to the recommended torque. After that, check the output assignment in the programming software.

Additionally, verify the PNP wiring before power-up. The TM3DQ8T sources current to the load. Therefore, connect the load between the output and the negative supply. Meanwhile, keep output cables away from sensitive analog lines. This practice reduces electrical noise. Finally, confirm the status LEDs after applying power.

Packaging List

• 1 × Schneider TM3DQ8T Digital Output Module

• 1 × Removable Screw Terminal Block

• 1 × Quick Start Guide

FAQ

Q1: Which PLC platforms support the TM3DQ8T?
A: The module works with Modicon M221, M241, M251, and M262 controllers. It plugs into the TM3 expansion bus directly.

Q2: What is the maximum output current per channel?
A: Each channel handles up to 0.5 A. The transistor source output delivers a 24 Vdc PNP signal.

Q3: Does the TM3DQ8T include short-circuit protection?
A: Yes. Each output offers short-circuit and overload protection. These features help prevent damage during field faults.

Q4: What is the response time of this output module?
A: The maximum response time is 450 µs for turn-on and turn-off. This speed suits fast switching applications.

Q5: What shipping methods are available?
A: We ship via Fedex, UPS, and DHL. Delivery times vary by destination and service level.