ABB ACS350 User Manual page 200

200
Parameters – complete descriptions
Index Name/Selection
3015 UNDERLOAD CURVE Selects the load curve for the underload function. See parameter
1...5
3016 SUPPLY PHASE
FAULT
LIMIT/ALARM
ALARM
3017 EARTH FAULT
DISABLE
ENABLE
3018 COMM FAULT FUNC
NOT SEL
FAULT
CONST SP 7
Actual signals and parameters
Description
UNDERLOAD FUNC.
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
Selects how the drive reacts to supply phase loss, i.e. when DC voltage
ripple is excessive.
The drive trips on fault SUPPLY PHASE and the motor coasts to a stop when
the DC voltage ripple exceeds 14% of the nominal DC voltage.
Drive output current is limited and alarm INPUT PHASE LOSS 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 .
hd
The drive generates alarm INPUT PHASE LOSS when the DC ripple
exceeds 14% of the nominal DC voltage.
Selects how the drive reacts when an earth (ground) fault is detected in the
motor or the motor cable.
Note: Changing this parameter setting is not recommended.
No action
The drive trips on fault EARTH FAULT.
Selects how the drive reacts in a fieldbus communication break. The time
delay is defined by parameter
Protection is inactive.
Protection is active. The drive trips on fault SERIAL 1 ERR and coasts to
stops.
Protection is active. The drive generates alarm IO COMM and sets the speed
to the value defined by parameter
WARNING! Make sure that it is safe to continue operation in case of
a communication break.
3
2
1
4
ƒ
N
3019 COMM FAULT TIME.
1208 CONST SPEED 7.
Def, FbEq
3013 1
70%
50%
5
30%
f
2.4 · ƒ
N
1 = 1
FAULT
0
1
2
ENABLE
0
1
NOT SEL
0
1
2