| The adaptive control option
improves tuning by automatically optimizing control parameters whenever
necessary to keep the system at the target temperature. When a system is well
tuned, the product is kept closer to the ideal processing temperature. This
improves yield and reduces wasteful scrap and the need for reworking
miss-processed material. Also, when the process variable tracks the set point
more accurately, the process or equipment spends less time warming up and
stabilizing, and is more available and productive, which can save capital and
energy costs.
"Adaptive control offers many
benefits including minimizing setup time and effort and ensuring optimum
performance by automatically fine tuning loops more precisely than typical
auto-tune features," said Sean Wilkinson, product manager. "It also helps reduce
scrap and rework by providing stable control despite set point and load
changes."
Watlow's PPC-2000 is a
powerful, programmable multi-loop process control system. It combines
easy-to-setup, multi-loop process control and programmable logic control into
one, integrated package. Its modular design lets users select a set of hardware
and develop a logic program based on specific control loop and logic needs,
making it ideal for OEMs, system integrators and end users.
The PPC-2000's standard
firmware option controls up to 48 PID loops. The adaptive control option offers
32 loops of PID control with up to eight adaptively tuned loops. The base system
includes 46 digital I/O. Optional I/O modules offer digital inputs and outputs,
analog inputs and outputs, high-speed counters, ac and dc inputs and relay
outputs. Analog input modules accept mixed sensor inputs including
thermocouples, RTDs and dc voltage and current signals as well as a high
precision thermistor and a current transformer signal for open heater detection.
The two communication ports
allow system designers to interface a personal computer and/or operator
interface panel with the Modbus™ RTU protocol. ANAWIN®3, the
PPC-2000's HMI software, makes it easy to configure, monitor and customize
applications. LOGICPROTM, the graphical logic
programming software, offers easy-to-use, drag-and-drop programming tools and
PC-based program simulation, debugging and monitoring.
The PPC-2000 is used in many
industries including semiconductor process equipment, electronic packaging
equipment, plastic extrusion and thermoforming equipment and applications
requiring 16 or more temperature or analog inputs.
The PPC-2000 carries the CE
mark and is UL® and C-UL® listed.
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