Johnson Controls VSD Series User Manual page 119

Eaton Technology
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November 2009
Chapter 11 — Duct Static Application (SVCHS202)
Introduction
The Duct Static Application is typically used to control fans with a pressure transducer and
provide WC/PA 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 Duct Static Application is typically used to control Duct pressure. In these applications,
the Duct Static 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.
LIT-1201828 For more information visit: www.johnsoncontrols.com
VSD Series Drives User Manual
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