Siemens

For stepper motor control

Description

The FM 353 is a positioning module for controlling stepper motors. It can perform many functions for solving a wide variety of positioning tasks, and offers a high level of precision, dynamic response, and user-friendliness.
In contrast to modules which control servomotors, the FM 353 requires no position decoding system

It can be used in all low-load positioning tasks and where there are no major load fluctuations. When these prerequisites are fulfilled, virtually the same degree of accuracy can be achieved with the FM 353 and stepper motors (µm-range) as with servomotors.

The FM 353 is used in the SIMATIC S7-300, C7 and ET 200M on S7 masters. Operation with WinAC Slot 41x is possible.

For servomotor control

Description

The FM 354 is a positioning module for position control with servomotors. It is suitable for precise position control in the face of load fluctuations or high dynamic response.
The FM 354 can be used for simple point-to-point positioning as well as for complex velocity profiles with the very highest demands on dynamic response, precision and speed, and is thus the ideal solution for positioning tasks with high clock-pulse rates both in mini controls and in distributed configurations directly on the machine.
The FM 354 is used in the SIMATIC S7-300, C7 and ET 200M on S7 masters as well as with WinAC Slot41x.

The universal control solution

Description

The FM 355 closed-loop control module has 4 channels, and can be used universally for temperature, pressure, flow and level control.
The FM 355 controller module for SIMATIC S7-300, C7 and ET 200M (on S7-300-/S7-400 masters) can also be used in PCS7 systems.
It offers:

A variety of pre-programmed control structures
A self-optimisation function for fast, simple controller optimisation and
A backup function for problem-free operation in the event of a CPU stop/failure.

The module is available in two versions for controlling different actuators

FM 355 C as continuous controller for the control of analog actuators
FM 355 S as step-action or pulse-action controller for the control of actuators via digital outputs

The expert in temperature control

Description

The FM 355-2 is the specialized, backup-capable controller module for temperature control with integrated online self-optimization for SIMATIC S7-300, C7 and ET 200M.
It has four channels, and was specially developed for the control of temperature systems, whereby controllers with heating and active cooling can also be implemented and optimized.
Other loops with similar requirements can also be controlled.

Advantages

Controller structures are, for the most part, preprogrammed and configurable, i.e. function blocks can be combined and interconnected as needed.
All functions essential to temperature control are integrated
o Control algorithms specifically developed for temperature
o Integriated online self-optimization
o Control parameters are available at the step response turning point
o Best available support for thermocouples
Backup capability
Enhanced precision when using thermocouples
Type B, E, J, K, R, S thermocouple connectable
Temperature compensation when using thermocouples:
o via external Pt100;
o internal temperature sensor;
o parameterized value.
Graphic configuring with user-friendly parameter assignment screen forms
Extensive test functions as well as simulation options are available, and simplify commissioning and diagnostics