Honeywell VFD CORE

CHAPTER 12: DESCRIPTION OF PARAMETER SETTINGS
233 63-4528—04
Fig. 6. Sequence of switching motors at fixed quantity circulation with PID – decreasing demands.
Fig. 7. Sequence of switching motors at fixed quantity circulation with PID – decreasing demands
M33770
FREQUENCY
DEMAND
DEMAND
DECREASING DEMAND
MOTOR 4
MOTOR 3
MOTOR 2
OUTPUT
(FLOW OR PRESSURE)
MOTOR 1
MAX
MIN
OFF
OFF
TOTAL
OUTPUT
VFD CORE
OPERATION
OFF
MOTOR 4
MOTOR 3
MOTOR 2
MOTOR 1
AC MAINS
AC MAINS
AC MAINS
BY DRIVE
M33771
FREQUENCY
TIME
MOTOR #1 ON MAIN
MOTOR #4
MOTOR #1
Td
Td (P10-04 x 2) 2 SEC
0 Hz
MAINS
(50 Hz)
0 Hz
OFF (COASTING)
MOTOR #4 BY DRIVE