Vacon NX Series Applications Manual page 321

PARAMETER DESCRIPTIONS
1011 STOP DELAY OF AUXILIARY DRIVES 7 (2.9.11)
Use this parameter to set the delay time to stop the auxiliary drive.
The frequency of the drive controlled by the AC drive must remain below the stop limit of the
auxiliary drive for the time defined with this parameter before the drive is stopped. The delay
defined applies to all auxiliary drives. This prevents unnecessary stops caused by momentary
falls below the stop limit.
f
out
Start freq. of aux. drive 1
par. ID1002 + 1 Hz)
Frequency after
starting the
aux. drive1 is
par. ID1003-1 Hz
F
min
par. ID101
Stop freq. of aux. drive 1
(par. ID1003 - 1 Hz)
Fig. 79: Example of parameter setting; Variable speed drive and one auxiliary drive
1012 REFERENCE STEP AFTER START OF AUXILIARY DRIVE 17 (2.9.12)
Use this parameter to set a reference step that is added to the reference value when the
auxiliary drive is started.
1013 REFERENCE STEP AFTER START OF AUXILIARY DRIVE 27 (2.9.13)
Use this parameter to set a reference step that is added to the reference value when the
auxiliary drive is started.
1014 REFERENCE STEP AFTER START OF AUXILIARY DRIVE 37 (2.9.14)
Use this parameter to set a reference step that is added to the reference value when the
auxiliary drive is started.
1015 REFERENCE STEP AFTER START OF AUXILIARY DRIVE 47 (2.9.15)
Use this parameter to set a reference step that is added to the reference value when the
auxiliary drive is started.
The reference step will be automatically added to the reference value always when the
corresponding auxiliary drive is started. With the reference steps e.g. the pressure loss in
the piping caused by the increased flow can be compensated.
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
f
out
Start freq. of aux. drive 1
par. ID1002 + 1 Hz)
Stop freq.
of aux. drive 1
(par. ID1003-1 Hz)
Frequency after starting
Frequency decrease
the aux. drive1
during the stop delay
is par. ID1003 + 1 Hz
F
min
par. ID101
Flow
VACON · 321
Start delay of the
aux.drives
(par. ID1010)
Frequency
increase
during the
start delay
Stop delay of the aux.
drives (par. ID1011)
Flow
9