SIEMENS SINAMICS
TM31 Terminal Module
Product Overview
The Siemens SINAMICS TM31 Terminal Module, article number 6SL3055-0AA00-3AA1, is an expansion module for the SINAMICS drive system, designed to provide additional digital and analog inputs and outputs for drive control, monitoring, and machine-interface functions.
The TM31 is a compact IP20 terminal module for DIN-rail mounting and communicates with the SINAMICS system via DRIVE-CLiQ. It is used as a flexible I/O extension where the standard interfaces of the SINAMICS Control Unit are insufficient for the required machine signals. Siemens currently lists the article as an active PM300 product.
Key Features
Flexible I/O Expansion
The TM31 significantly expands the available machine-level interfaces by combining:
- Digital inputs
- Digital outputs
- Analog inputs
- Analog outputs
- Relay outputs
This allows conventional sensors, switches, actuators, meters, contactors, and control signals to be connected directly to the SINAMICS system.
DRIVE-CLiQ Communication
The module is integrated into the SINAMICS architecture through DRIVE-CLiQ, Siemens' high-speed system communication technology for drive components and peripheral modules.
The TM31 therefore acts as an intelligent I/O extension rather than simply being a passive terminal board.
DIN-Rail Mounting
The module is designed for control-cabinet installation on a standard mounting rail and has an IP20 degree of protection.
Industrial-Grade I/O
The TM31 supports standard industrial signal levels, including 24 V DC digital signals, 0–20 mA / 4–20 mA current signals, and ±10 V analog voltage signals.
Integrated Relay Contacts
The module provides changeover relay contacts, allowing it to interface directly with external control circuits and switching devices.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
Siemens |
| Product Family |
SINAMICS |
| Product Type |
TM31 Terminal Module |
| Article Number |
6SL3055-0AA00-3AA1 |
| Main Function |
Digital and analog I/O expansion |
| Communication |
DRIVE-CLiQ |
| Protection Rating |
IP20 |
| Mounting |
DIN rail / standard mounting rail |
| Digital Input Voltage |
−3 … +30 V DC |
| Digital Input High Level |
15 … 30 V DC |
| Typical Digital Input Current |
9 mA at 24 V DC |
| Digital Outputs |
24 V DC |
| Digital Output Current |
100 mA per output |
| Total Digital Output Current |
400 mA |
| Analog Input Voltage Range |
−10 … +10 V |
| Analog Input Current Ranges |
0 … 20 mA / 4 … 20 mA / −20 … +20 mA |
| Analog Input Voltage Resistance |
100 kΩ |
| Analog Input Current Resistance |
250 Ω |
| Analog Input Resolution |
11 bits + sign / 10 bits + sign |
| Analog Output Voltage Range |
−10 … +10 V |
| Analog Output Current Ranges |
−20 … +20 mA / 0 … 20 mA / 4 … 20 mA |
| Analog Output Resolution |
11 bits + sign |
| Relay Outputs |
Changeover contacts |
| Relay Switching Voltage |
250 V AC / 30 V DC |
| Relay Load Current |
8 A max. |
| Maximum Relay Switching Capacity |
2000 VA at 250 V AC |
| Maximum Power Loss |
10 W |
| Supply Voltage |
24 V DC |
| Maximum Current Consumption |
0.5 A, excluding digital-output and DRIVE-CLiQ supply |
| Dimensions (W × H × D) |
50 × 150 × 111 mm |
| Approx. Weight |
0.49 kg |
| Product Lifecycle |
PM300 – Active Product |
| Country of Origin |
Germany |
The technical values above are taken from Siemens technical documentation and current Industry Mall data.