4-50 Warning Current Low
Range:
Function:
Use this parameter to set a lower limit for the current range.
If current drops below the set limit, warning bit 8 is set in par. 16-94.
Output Relay can be configured to indicate this warning. Keypad warning light does not light when this parameter's
set limit is reached.
0.00 A
*
[0.00 - 26.00 A]
Set value for low current limit.
4-51 Warning Current High
Range:
Function:
Use this parameter to set an upper limit for the current range.
If current exceeds the set limit, warning bit 7 is set in par. 16-94.
Output Relay can be configured to indicate this warning. Keypad warning light does not light when this parameter's
set limit is reached.
26.00 A
*
[0.00 - 26.00 A]
Set upper current limit.
4-58 Missing Motor Phase Function
Option:
Function:
A missing motor phase causes the motor torque to drop. This monitor may be disabled for special purposes (eg. small
motors running pure U/f mode), but as there is a risk of overheating the motor, GE strongly recommends that the
function is
On
.
A missing motor phases causes the frequency converter to trip and report an alarm.
NB!
This parameter cannot be changed while motor runs.
[0]
Off
Function is disabled.
[1]
*
On
Function is enabled.
4.5.4. 4-6* Jump Frequencies
In some applications mechanical resonance may occur. Avoid resonance points by creating a Jump frequency. The frequency converter ramps through the Jump
frequency area thereby passing mechanical resonance points quickly.
4-61 Jump Frequency From [Hz]
Range:
Function:
Array [2]
0.0 Hz
*
[0.0 - 400.0 Hz]
Enter either the lower or upper limit of the speeds to be avoided.
It does not matter whether Jump From or Jump To is the upper or lower limit, however the Jump Frequency function
is disabled if the two parameters are set to the same value.
4-63 Jump Frequency To [Hz]
Range:
Function:
Array [2]
0.0 Hz
*
[0.0 - 400.0 Hz]
Enter either the upper or lower limit of the speed area to be avoided.
Make sure to enter the
opposite
limit of that in par. 4-61
Jump Frequency From [Hz]
.
AF-60 LP™ Micro Drive Programming Guide
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