14-10 Mains Failure
Option:
Function:
14-11*1.35
Ref
790 V
0
A
B
C
D
130BC920.10
U
n [RPM]
t [S]
DC
UDC
[V]
t [S]
A Normal operation
B Mains failure
C Kinetic back-up
D Trip
Illustration 4.27 Kinetic Back-up Trip
[6] Alarm
[7] Kin.
back-up,
trip w
recovery
14-11 Mains Voltage at Mains Fault
Range:
Function:
342 V
*
[100 -
800 V]
This parameter defines the threshold voltage
at which the selected function in
is activated.
The detection level is at a factor sqrt
2
of the
value in this parameter.
14-12 Function at Mains Imbalance
Option:
Function:
Operation under severe mains imbalance
conditions reduces the lifetime of the motor.
Conditions are considered severe if the motor is
operated continously near nominal load (for
example, a pump or fan running near full speed).
[0]
*
Trip
Trips the frequency converter.
[1]
Warning Issues a warning.
[2]
Disabled No action is taken.
[3]
Derate
Derates the frequency converter.
14-15 Kin. Backup Trip Recovery Level
Range:
Function:
Size related
*
[0 - 500.000 ReferenceFeedbackUnit]
4.13.3 14-2* Trip Reset
Parameters for configuring auto reset handling, special trip
handling, and control card self test, or initialisation.
14-20 Reset Mode
Option:
Function:
WARNING
UNINTENDED START
When the frequency converter is
connected to AC mains, DC supply,
or load sharing, the motor may
start at any time. Unintended start
during programming, service, or
repair work can result in death,
serious injury, or property damage.
The motor can start via an external
switch, a fieldbus command, an
input reference signal from the LCP,
or after a cleared fault condition.
To prevent unintended motor start:
•
Disconnect the frequency
converter from the mains.
•
Press [Off/Reset] on the
LCP before programming
parameters.
•
Fully wire and assembly
the frequency converter,
motor, and any driven
equipment before
connecting the frequency
converter to AC mains, DC
supply, or load sharing.
NOTICE
If the specified number of
automatic resets is reached within
10 minutes, the frequency
converter enters
[0] Manual reset
mode. After the manual reset is
performed, the setting of
reverts
to the original selection. If the
number of automatic resets is not
reached within 10 minutes, or
when a manual reset is performed,
the internal automatic reset
counter returns to zero.
Select the reset function after tripping.
Once reset, the frequency converter can
be restarted.
[0]
*
Manual reset
Select
[0] Manual reset
, to perform a
reset via [Reset] or via the digital inputs.
[1]
Automatic reset
x 1
Select
[1]-[12] Automatic reset x 1…x20
to
perform between 1 and 20 automatic
resets after tripping.
Parameter Descriptions
VLT
®
AutomationDrive FC 360
96
Danfoss A/S © 7/2015 All rights reserved.
MG06C602
4
4
