ABB ACS355 series User Manual page 254

254 Actual signals and parameters
All parameters
No. Name/Value
FAULT
ALARM
3014 UNDERLOAD
TIME
10...400 s
3015 UNDERLOAD
CURVE
1...5
3016 SUPPLY
PHASE
FAULT
LIMIT/ALARM
ALARM
Description
The drive trips on fault
coasts to stop.
Note: Set parameter value to
run is performed! If FAULT
generate an UNDERLOAD
The drive generates alarm
Defines the time limit for the underload function. See
parameter 3013 UNDERLOAD
Time limit
Selects the load curve for the underload function. See
parameter 3013 UNDERLOAD
T = nominal torque of the motor
M
ƒ = nominal frequency of the motor (9907)
N
T
M
(%)
Underload curve types
80
60
40
20
0
Number of the load curve type in the figure
Selects how the drive reacts to supply phase loss, ie, when
DC voltage ripple is excessive.
The drive trips on fault
motor coasts to stop when the DC voltage ripple exceeds
14% of the nominal DC voltage.
Drive output current is limited and alarm
LOSS (2026) is generated when the DC voltage ripple
exceeds 14% of the nominal DC voltage.
There is a 10 s delay between the activation of the alarm
and the output current limitation. The current is limited until
the ripple drops under the minimum limit, 0.3 · I
The drive generates alarm
when the DC ripple exceeds 14% of the nominal DC
voltage.
UNDERLOAD (0017) and the motor
FAULT only after the drive ID
is selected, the drive may
fault during ID run.
UNDERLOAD (2011).
FUNC.
FUNC.
3
2
1
f
N
SUPPLY PHASE (0022) and the
INPUT PHASE
INPUT PHASE LOSS
Def/FbEq
1
2
20 s
1 = 1 s
1
70%
50%
5
30%
4
f
2.4 f
·
N
1 = 1
FAULT
0
1
.
hd
(2026) 2