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Group 37: USER LOAD CURVE
This group defines supervision of user adjustable load curves
(motor torque as a function of frequency). The curve is defined
by five points.
Code Description
3701 USER LOAD C MODE
Supervision mode for the user adjustable load curves.
This functionality replaces the former underload supervision in
30: FAULT
FUNCTIONS. To emulate it, see section
with the obsolete underload supervision
0 =
– Supervision is not active.
NOT SEL
1 =
UNDERLOAD
underload curve.
2 =
OVERLOAD
curve.
3 =
– Supervision for the torque dropping below the underload
BOTH
curve or exceeding the overload curve.
Motor torque (%)
P3706
Allowed operating area
P3705
P3704
3702 USER LOAD C FUNC
Action wanted during load supervision.
1 =
– A fault is generated when the condition defined by 3701
FAULT
USER LOAD C MODE
USER LOAD C TIME
2 =
– An alarm is generated when the condition defined by 3701
ALARM
USER LOAD C MODE
by 3703
USER LOAD C TIME
3703 USER LOAD C TIME
Defines the time limit for generating a fault.
• Half of this time is used as the limit for generating an alarm.
270
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– Supervision for the torque dropping below the
– Supervision for the torque exceeding the overload
P3709
P3708
P3707
has been valid longer than the time set by 3703
.
has been valid longer than half of the time defined
.
Parameter listing and descriptions
ACH550-01 User's Manual
Range
0...3
Correspondence
on page 272.
Overload area
P3712
P3715
P3714
P3711
Underload area
P3710
P3713
Output frequency (Hz)
1=FAULT, 2=ALARM
10...400 s
Group
P3718
P3717
P3716
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