Sequence Controllers

Sequence Controllers

Sequence Controllers – key to electronic screwdriving systems!

Screwdriving Controller

Besides the screwdriver itself, the screwdriving or sequence controller serves as an essential component of an electronic screwdriving system. Using the given parameters of the screwdriving program, the controller controls the EC-drive of the screwdriver, evaluates signals from sensors, and provides all necessary operator and documentation functions.

MINIMAT-EC and MINIMAT-EC Servo are key product lines within DEPRAG’s portfolio of screwdriving technology products, and both come equipped with highly dynamic brushless servo motors. However, they differ in the way the torque measurements are generated. While the EC-technology used with the sequence controllers AST5 and AST11 is based on the exact motor-current measurement, the EC Servo system with the available AST5-S and AST40 controllers evaluates the signal of the transducer integrated in the tool.

In addition to the applicable torque requirement, one more factor to be considered when choosing the most appropriate screwdriving system for the application at hand is the type of documentation or data output required. Moreover, selection of a suitable communication interface (for data exchange with the system environment) is also important.

AST5

  • Torque range: 0.01 Nm - 2 Nm
  • Screwdriver design: inline, handheld Screwdriver with trigger-start or push-to-start, screwdrivers designed for automatic screwfeeding
  • Number of possible multistage programs: 100
  • Documentation possibility: internal storage, retrieval via Ethernet (Datalogger, touchscreen)
  • Operator friendly color touchscreen for the direct input of screwdriving cycles and tightening parameter, graphical display of torque-curves
  • Small size to accommodate space-constrained manual workstations

AST6

  • Torque range: 0.02 Nm - 0.8 Nm
  • For use with MINIMAT-EC screwdriver spindles
  • Number of possible multistage programs: 100
  • Documentation possibility: internal storage, retrieval via Ethernet (Datalogger, touchscreen)
  • Operator friendly color touchscreen for the direct input of screwdriving cycles and tightening parameter, graphical display of torque-curves
  • Small size to accommodate system space constraints

AST11

  • Torque range: 0.03 Nm - 25 Nm
  • Screwdriver design: fixtured screwdrivers inline, handheld screwdriver inline, angle-head screwdrivers, pistol-grip screwdrivers, screwdrivers designed for automatic screwfeeding
  • Number of possible multistage programs: 16
  • Documentation possibility: internal storage, retrieval via Ethernet (Datalogger, http), parameterizable printer port
  • PLC-ports: I/O, Profibus

AST12

  • Torque range: 0.03 Nm – 4.2 Nm
  • Screwdriver design: either handheld or spindle screwdriver
  • Industry 4.0 interfaces: REST, OPC UA, MQTT, FTP
  • DEPRAG Cockpit as your central user interface in responsive design for parameterization, visualization and documentation

AST40

  • Torque range: 0.2 Nm - 500 Nm
  • Screwdriver design: fixtured screwdrivers inline and with angle-head drive, also for handheld screwdriver applications in connection with add-on components
  • Number of possible multistage programs: 100
  • Documentation possibility: internal storage, output via RS232 or ethernet (Datalogger), printer port
  • PLC-ports: I/O, Profibus
Please contact us for more information.