ABB ACS560 Firmware Manual page 265

No. Name/Value
31.31 Frequency trip
margin
0.00...10000.00 Hz
31.35 Main fan fault
function
Fault
Warning
No action
Description
Defines, together with 30.13 Minimum frequency
Maximum frequency, the maximum allowed frequency of the
motor. If the speed (28.01 Frequency ref ramp
the frequency limit defined by parameter
more than the value of this parameter, the drive trips on
the73F0 Overfrequency
WARNING! This function only supervises the speed in
scalar motor control mode. The function is not
effective in vector motor control mode.
Example: If the maximum speed is 40 Hz and speed trip
margin is 10 Hz, the drive trips at 50 Hz.
Frequency (25.02)
Overfrequency trip level
31.31
0
31.31
Overfrequency trip level
Overfrequency trip margin.
Selects how the drive reacts when a main cooling fan speed
problem is detected.
An event is triggered according to the value of this parameter
(fault, warning or no action)
• if the rotation speed signal from the fan is lower than the
measured fan maximum speed (determined during the fan
ID run)
• if the measured fan maximum speed is lower than the
predefined minimum value
Drive trips on fault 5080
Drive generates warning
No action taken.
input) exceeds
30.13 or
fault.
30.14
30.13
Fan.
A581 Fan.
Parameters 265
Def/FbEq16
and 30.14 15.00 Hz
30.14 by
Time
See par.
46.02
Warning
0
1
2