FM 452 cam controller Siemens

Область применения

The high-speed FM 452 electronic cam controller module is a cost-effective alternative to mechanical cam controllers even in the lower performance range.

It can be used, for example:

• On conveyor belts:
  The FM 452 captures the positions of parts via light barriers and then initiates actions (e.g., drilling, milling, applying adhesive) via control commands.
• For the automation of presses.

Обзор

• Very high speed electronic cam controller
• Low-cost alternative to mechanical cam controllers
• 32 cam tracks, 16 onboard digital outputs for direct output of actions
• Incremental or synchronous-serial position feedback

Note:

We offer position measuring systems and preassembled connecting cables for counting and positioning functions under SIMODRIVE Sensor or Motion Connect 500.

http://www.siemens.com/simatic-technology

Дизайн

A controller with the FM 452 features the following essential components:

• FM 452:
  • For position-dependent control commands by setting of outputs
• S7-400 CPU:
  • For sequence control
  • For starting and stopping monitoring actions
• Programming device:
  • For programming the STEP  7 program
  • For parameterizing the FM 452 with STEP 7 via parameterization screen forms
  • For testing and startup
• Operator panel:
  • For operator control and monitoring of the machine
  • For error diagnostics

Функции

• Configurable number of cams:
  Depending on programming, 16, 32, 64 or 128 cams are available.
• Any cam track can be assigned.
• 32 cam tracks, of which 16 are run directly to onboard digital outputs
• Configurable cam characteristics:
  the cams can be defined as path cams, path-time cams or time cams. They can be programmed direction-dependent (up/down). Track outputs "0" and "1" can be parameterized as counter cam track, and track output "2" can be parameterized as a brake cam track.

Special functions

• Longitudinal measuring
• Set reference point
• Set actual value
• Set actual value on-the-fly
• Zero offset
• Change cam edge
• Simulation mode

Mode of operation

The FM 452 extremely high-speed electronic cam controller captures the position of parts via encoders and then initiates actions via control commands.

The FM 452 operates autonomously after the machine data and the cam data have been transferred. Only control and checkback signals are then exchanged between the CPU and the FM 452.

The electronic cam controller works particularly fast:

• 16 digital outputs for cam tracks:
  For rapid transmission of control signals to the process
• Speed-dependent dynamic shifting for each cam:
  For automatic compensation of the dead time of the actuator connected at the time

The machinery to be controlled can be connected directly to the module. Control relays are only required for actuators with high current consumption.

Технические данные