Siemens 6FM1726-3CA10 Positioning Module

The Siemens 6FM1726-3CA10 positioning module provides high-precision axis control for SIMATIC S5 systems. This module manages servo drives for complex motion profiles and positioning tasks. It mounts directly into any S5-135U or S5-155U rack slot. You can use this module as a direct replacement for failed positioning units.

Detailed Technical Specifications

The Siemens 6FM1726-3CA10 positioning module measures 250 mm in length. Its width reaches 160 mm across the main body. The total height goes up to 45 mm with all components installed. This unit weighs approximately 0.62 kilograms for secure mounting.

Key hardware parameters include:

Complete Model: Siemens 6FM1726-3CA10
Component count: 124 individual electronic parts
Connector ports: One 20-pin screw terminal block
Energy storage: Six aluminum capacitors (100 µF each)
Mounting system: Two rear locking levers
PCB layers: Six-layer high-speed construction
Control axes: 2 axes simultaneous positioning
Output signal: ±10 V analog for servo drives
Position range: 32-bit counter (±2 billion steps)
Input channels: 8 digital limit switches (4 per axis)
Encoder interface: 5 V differential RS-422 (A, B, R)
Maximum frequency: 500 kHz for encoder inputs

The Siemens 6FM1726-3CA10 positioning module stores moderate residual charge after power-off. Therefore, technicians must wait thirty seconds before handling the module. The analog output provides 14-bit resolution for precise velocity control. Moreover, the module includes programmable acceleration and deceleration curves.

Technical Parameter	Specification
Full Model Number	Siemens 6FM1726-3CA10
Dimensions (LxWxH)	250 mm x 160 mm x 45 mm
Weight	0.62 kg
Total Components	124 units
Connector Ports	1 x 20-pin screw terminal
Energy Storage Caps	6 x 100 µF (aluminum)
Control Axes	2 axes simultaneous
Output Signal	±10 V analog (14-bit)
Position Range	32-bit (±2 billion steps)
Digital Inputs	8 limit switches
Encoder Interface	RS-422 (A,B,R), 500 kHz
Operating Temperature	0°C to +60°C
Humidity Tolerance	5% to 85% non-condensing

Application and Installation

The Siemens 6FM1726-3CA10 positioning module slots into any S5 rack alongside the CPU. It requires an external servo drive for motor power amplification. This module reads incremental encoders for closed-loop position verification. Consequently, you can implement precise multi-axis positioning for CNC and robotics applications.

Programming and Reliability

This module executes motion profiles autonomously after receiving target positions. The Siemens 6FM1726-3CA10 stores up to 32 motion sequences in onboard RAM. You program the module using standard S5 function blocks (FB 200 to FB 215). Therefore, integration with existing S5 programs requires minimal additional coding.

Always power down the rack before inserting or removing this module. Wire the encoders using shielded twisted-pair cables for noise immunity. The module features LED indicators for power, run, and axis status. Furthermore, its conformal coating protects against dust and light moisture.