Danfoss VLT AutomationDrive FC 301 Programming Manual page 90

Parameter Descriptions
4-59 Motor Check At Start
Option: Function:
[0] Off
*
RISK OF MOTOR DAMAGE
3 3
Using this option may lead to a motor damage.
The frequency converter does not issue a missing
motor phase alarm.
[1] On Before each start, the frequency converter checks if all
3 motor phases are present. The check is performed
without any movement on ASM motors. For PM and
SynRM motors, the check is performed as part of the
position detection.
3.6.5 4-6* Speed Bypass
Some systems require that certain output frequencies or
speeds are avoided due to resonance problems in the
system. A maximum of 4 frequency or speed ranges can
be avoided.
4-60 Bypass Speed From [RPM]
Array [4]
Range:
Size related
*
4-13 RPM]
4-61 Bypass Speed From [Hz]
Array [4]
Range:
Size related
*
4-14 Hz]
4-62 Bypass Speed To [RPM]
Array [4]
Range:
Size related
*
4-13 RPM]
88
CAUTION
Function:
[ 0 - par. Some systems call for avoiding
certain output speeds due to
resonance problems in the system.
Enter the lower limits of the speeds
to be avoided.
Function:
[ 0 - par. Some systems require that certain
output frequencies or speeds are
avoided due to resonance problems
in the system. Enter the lower limits
of the speeds to be avoided.
Function:
[ 0 - par. Some systems call for avoiding
certain output speeds due to
resonance problems in the system.
Enter the upper limits of the speeds
to be avoided.
Danfoss A/S © 02/2016 All rights reserved.
®
VLT AutomationDrive FC 301/302
4-63 Bypass Speed To [Hz]
Array [4]
Range:
Size related
3.6.6 4-7* Position Monitor
4-70 Position Error Function
Select the function which is activated when the position error
exceeds the maximum allowed value. Position error is the
difference between the actual position and the commanded
position. The position error is the input for the position PI
controller.
Option:
[0]
*
[1]
[2]
4-71 Maximum Position Error
Enter the maximum allowed position tracking error in position
units defined in parameter group 17-7* Position Scaling. If this
value is exceeded during the time set in parameter 4-72 Position
Error Timeout the position error function in
parameter 4-70 Position Error Function is activated.
Range:
1000 CustomRea-
doutUnit2
4-72 Position Error Timeout
If the error defined in parameter 4-71 Maximum Position Error is
present longer than the time in this parameter, the frequency
converter activates the function selected in
parameter 4-70 Position Error Function.
Range:
0.100 s
*
Function:
[ 0 - par. Some systems call for avoiding
*
4-14 Hz] certain output speeds due to
resonance problems in the system.
Enter the upper limits of the speeds
to be avoided.
Function:
Disabled The frequency converter does
not monitor the position
error.
Warning The frequency converter
issues a warning when the
maximum allowed position
error is exceeded. The
frequency converter continues
operation.
Trip The frequency converter trips
when the maximum allowed
position error is exceeded.
[-2000000000 -
2000000000
*
CustomReadoutUnit2]
[0.000 - 60.000 s]
Function:
Function:
MG33ML02