W
.
E
.
ST
.
Elektronik GmbH
Page 7 of 45
POS-124-*-PDP-1121
13.02.2013
2 Characteristics
This electronic module has been developed for controlling hydraulic positioning drives.
Both axes are controlled complete autonomous via the Profibus. Optionally an interconnection to a two
axes synchronised system is intended.
The differential outputs are covered for activation of constant valves with integrated or external
electronics (differential input). Intended is this module for the connection of analogue way sensors 0...10V
or 4...20mA (scalable) or digital SSI sensor interfaces.
The internal control signals operating states and error conditions via Profibus to the higher-level control.
The operation is signaled by a switch output.
Typical applications: Positioning control or synchronization control with hydraulic axes.
Features
•
Two independent positioning axes
•
Can be combined for synchronization controls
•
Command position parameter, actual value response, on loop control byte and status byte via
fieldbus Profibus DP
•
Principle of stroke-dependent deceleration for the shortest positioning time or NC profile gen-
erator for constant speed
•
Analogue or digital (SSI) actual value registration for both axes
•
Superimposed synchronization controller as PT1 actuator
•
Usable with zero lapped control valves
•
Fault diagnosis and extended function checking
•
Simplified parameterization with WPC-300 software version 3.2