Emerson Copeland XC643 Application Engineering Bulletin page 20

Closed loop digital controller
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Setup Screens continued
In the C9: Dgtl Scroll tab, the PI algorithm
for compressor control can be modified. tDs
corresponds to the Digital Compressor Duty
Cycle.
Additional Tabs
d0n = delay between starts of two different loads
LSE = Low limit of compressor setpoint (SETC)
HSE = High limit of compressor setpoint (SETC)
Pb = Proportional band zone width for fan regulation
LSF = Low limit of fan setpoint (SETF)
HSF = High limit of fan setpoint (SETF)
© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.
Application Engineering
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20
AE8-1386 R1

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