Applications

The Vertex-Pro anti-surge control is designed for industrial-sized axial or centrifugal compressors with 1

to 4 recycle loops. Standard off-the-shelf models are available and field configurable for 1 or 2 recycle

loop applications, while custom models are available for larger 3 or 4 recycle loop applications. This

controller includes specifically designed algorithms and logic to start, stop, control, and protect industrial

compressors driven by a stationary speed motors or variable-frequency drive motors. OEM-qualified

algorithms are used within the Vertex-Pro for straight-through, iso cooled, double-flow, single side-

stream, and back-to-back compressor applications.

Designed to replace CCC Series-3 and Series 3++ anti-surge controllers, the Vertex-Pro can be configured

to function like these controllers but uses two-times faster scan rates, improved surge anticipation logic,

and one integrated package for all control functions (anti-surge control loop 1. anti-surge control loop 2. 

performance control, and dual-redundant control).

The standard Vertex-Pro models (1 & 2 recycle loops) are field-configurable, allowing users to

configure/select the specific control algorithm required for the specific compressor loop and application.

Since 3–4 loop compressor applications tend to be complex, Vertex-Pro-C models (3 & 4 recycle loops)

are custom programmed by Woodward engineers, ensuring that the correct control and optimization

algorithms are used to meet the specific application requirements.

For critical applications requiring increased reliability and availability, users can order dual-redundant

control models, which have manual switch-over and automatic fail-over capabilities. These redundant

control models also allow users to replace/repair modules and perform program changes while the

compressor is operating on-line, thus greatly improving system availability.