Powered by Eaton Technology VSD Series Drives User Manual
LIT-1201828
For more information visit: www.johnsoncontrols.com 13-1
November 2009
Chapter 13 — Pressure Control Application (SVCHS204)
Introduction
The Pressure Control Application is typically used to control levels of pumps in fans with a
pressure transducer and provide PSI/kPa units to a keypad.
The direct frequency reference can be used for the control without the PI controller and is
selected from the analog inputs, fieldbus, motor potentiometer or keypad.
The Pressure Control Application is typically used to control Pressure pumps. In these
applications, the Pressure Control Application provides a smooth control and an integrated
measurement and control package where no additional components are needed.
● Digital inputs DI-2, DI-3 and DI-5 and all outputs are freely programmable.
Additional functions:
● Analog input signal range selection
● One frequency limit supervision
● Torque limit supervision
● Speed setpoint limit supervision
● Programmable start and stop functions
● DC Brake Chopper
● Six skip frequency areas
● Programmable V/Hz curve and switching frequency
● Auto restart
● Motor thermal and stall protection: Programmable action; off, warning, fault
● Motor underload protection
● Input and output phase supervision
Details of the parameters shown in this section are available in Chapter 15 of this Manual,
listed by parameter ID number.
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