Honeywell VFD CORE Installation Instructions Manual page 233

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