146 CG Drives & Automation 01-7492-01r1
Fig. 121 Load Curve R with Min ABS margin.
Max Alarm [416]
Max Alarm Margin [4161]
With load type Basic, [415], used the Max Alarm Margin
sets the band above the “Normal Load [41B]” menu that
does not generate an alarm. With load type Load Curve
[415] used, the Max Alarm Margin sets the band above the
Load Curve [41C], that does not generate an alarm. The
Max Alarm Margin is a percentage of nominal motor
torque.
In case of Load Curve R, the margin is percentage of Load
curve torque at the actual speed.
Max Alarm delay [4162]
When the load level without interruption exceeds the alarm
level longer than set “Max Alarm delay” time, an alarm is
activated.
Max Pre Alarm [417]
Max Pre AlarmMargin [4171]
With load type Basic [415], used the Max Pre-Alarm Margin
sets the band above the Normal Load, [41B], menu that
does not generate a pre-alarm. With load type Load Curve,
[415], used the Max Pre-Alarm Margin sets the band above
the Load Curve, [41C], that does not generate a pre-alarm.
The Max Pre-Alarm Margin is a percentage of nominal
motor torque.
In case of Load Curve R, the margin is percentage of Load
curve torque at the actual speed.
Max Pre Alarm delay [4172]
When the load level without interruption exceeds the alarm
level longer than set “Max PreAlarm delay” time, a warning
is activated.
415 Load Type
Default: Basic
Basic 0
Uses a fixed maximum and minimum load
level over the full speed range. Can be
used in situations where the torque is
independent of the speed.
Load Curve 1
Uses the measured actual load
characteristic of the process over the
speed range.
Load Curv R 2
Uses a relative load margin with a
minimum margin set in menu [41D].
4161 MaxAlarmMar
Default: 15%
Range: 0–400%
Load
Speed
[41D] Min Abs Margine
4162 MaxAlarmDel
Default: 0.1 s
Range: 0-90 s
4171 MaxPreAlMar
Default: 10%
Range: 0–400%
4172 MaxPreAlDel
Default: 0.1 s
Range: 0–90 s
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